branches: add per branch minfreespace w/ original value as default

example: /mnt/disk0=RW,1G:/mnt/disk1=RW,2G

src/branch.cpp

@@ -18,8 +18,11 @@
 
 #include "branch.hpp"
 #include "ef.hpp"
+#include "from_string.hpp"
 #include "fs_glob.hpp"
 #include "fs_realpathize.hpp"
+#include "nonstd/optional.hpp"
+#include "num.hpp"
 #include "str.hpp"
 
 #include <string>
@@ -29,167 +32,322 @@
 
 using std::string;
 using std::vector;
+using nonstd::optional;
+
+
+Branch::Branch(const uint64_t &default_minfreespace_)
+  : _default_minfreespace(&default_minfreespace_)
+{
+}
+
+int
+Branch::from_string(const std::string &str_)
+{
+  return -EINVAL;
+}
+
+std::string
+Branch::to_string(void) const
+{
+  std::string rv;
+
+  rv  = path;
+  rv += '=';
+  switch(mode)
+    {
+    default:
+    case Branch::Mode::RW:
+      rv += "RW";
+      break;
+    case Branch::Mode::RO:
+      rv += "RO";
+      break;
+    case Branch::Mode::NC:
+      rv += "NC";
+      break;
+    }
+
+  if(_minfreespace.has_value())
+    {
+      rv += ',';
+      rv += num::humanize(_minfreespace.value());
+    }
+
+  return rv;
+}
+
+void
+Branch::set_minfreespace(const uint64_t minfreespace_)
+{
+  _minfreespace = minfreespace_;
+}
+
+uint64_t
+Branch::minfreespace(void) const
+{
+  if(_minfreespace.has_value())
+    return _minfreespace.value();
+  return *_default_minfreespace;
+}
 
 bool
 Branch::ro(void) const
 {
-  return (mode == Branch::RO);
+  return (mode == Branch::Mode::RO);
 }
 
 bool
 Branch::nc(void) const
 {
-  return (mode == Branch::NC);
+  return (mode == Branch::Mode::NC);
 }
 
 bool
 Branch::ro_or_nc(void) const
 {
-  return ((mode == Branch::RO) ||
-          (mode == Branch::NC));
+  return ((mode == Branch::Mode::RO) ||
+          (mode == Branch::Mode::NC));
 }
 
-static
-void
-split(const std::string &s_,
+namespace l
+{
+  static
+  void
+  split(const std::string &s_,
         std::string       *instr_,
         std::string       *values_)
-{
+  {
     uint64_t offset;
 
     offset = s_.find_first_of('/');
     *instr_ = s_.substr(0,offset);
     if(offset != std::string::npos)
       *values_ = s_.substr(offset);
+  }
 }
 
-Branches::Branches()
+Branches::Branches(const uint64_t &default_minfreespace_)
+  : default_minfreespace(default_minfreespace_)
 {
   pthread_rwlock_init(&lock,NULL);
 }
 
-static
-void
-parse(const string &str_,
-      Branches     &branches_)
+namespace l
 {
-  string str;
-  Branch branch;
+  static
+  int
+  parse_mode(const string &str_,
+             Branch::Mode *mode_)
+  {
+    if(str_ == "RW")
+      *mode_ = Branch::Mode::RW;
+    ef(str_ == "RO")
+      *mode_ = Branch::Mode::RO;
+    ef(str_ == "NC")
+      *mode_ = Branch::Mode::NC;
+    else
+      return -EINVAL;
+
+    return 0;
+  }
+
+  static
+  int
+  parse_minfreespace(const string       &str_,
+                     optional<uint64_t> *minfreespace_)
+  {
+    int rv;
+    uint64_t uint64;
+
+    rv = str::from(str_,&uint64);
+    if(rv < 0)
+      return rv;
+
+    *minfreespace_ = uint64;
+
+    return 0;
+  }
+
+  static
+  int
+  parse_branch(const string       &str_,
+               string             *glob_,
+               Branch::Mode       *mode_,
+               optional<uint64_t> *minfreespace_)
+  {
+    int rv;
+    string options;
+    vector<string> v;
+
+    str::rsplit1(str_,'=',&v);
+    switch(v.size())
+      {
+      case 1:
+        *glob_ = v[0];
+        *mode_ = Branch::Mode::RW;
+        break;
+      case 2:
+        *glob_  = v[0];
+        options = v[1];
+        v.clear();
+        str::split(options,',',&v);
+        switch(v.size())
+          {
+          case 2:
+            rv = l::parse_minfreespace(v[1],minfreespace_);
+            if(rv < 0)
+              return rv;
+          case 1:
+            rv = l::parse_mode(v[0],mode_);
+            if(rv < 0)
+              return rv;
+            break;
+          case 0:
+            return -EINVAL;
+          }
+        break;
+      default:
+        return -EINVAL;
+      }
+
+    return 0;
+  }
+
+  static
+  int
+  parse(const string   &str_,
+        const uint64_t &default_minfreespace_,
+        BranchVec      *branches_)
+  {
+    int rv;
+    string glob;
     vector<string> globbed;
+    optional<uint64_t> minfreespace;
+    Branch branch(default_minfreespace_);
 
-  str = str_;
-  branch.mode = Branch::INVALID;
-  if(str::endswith(str,"=RO"))
-    branch.mode = Branch::RO;
-  ef(str::endswith(str,"=RW"))
-    branch.mode = Branch::RW;
-  ef(str::endswith(str,"=NC"))
-    branch.mode = Branch::NC;
-
-  if(branch.mode != Branch::INVALID)
-    str.resize(str.size() - 3);
-  else
-    branch.mode = Branch::RW;
+    rv = l::parse_branch(str_,&glob,&branch.mode,&minfreespace);
+    if(rv < 0)
+      return rv;
+
+    if(minfreespace.has_value())
+      branch.set_minfreespace(minfreespace.value());
 
-  fs::glob(str,&globbed);
+    fs::glob(glob,&globbed);
     fs::realpathize(&globbed);
     for(size_t i = 0; i < globbed.size(); i++)
       {
         branch.path = globbed[i];
-      branches_.push_back(branch);
+        branches_->push_back(branch);
       }
-}
 
-static
-void
-set(Branches          &branches_,
-    const std::string &str_)
-{
-  vector<string> paths;
+    return 0;
+  }
 
-  branches_.clear();
+  static
+  int
+  set(const std::string &str_,
+      Branches          *branches_)
+  {
+    int rv;
+    vector<string> paths;
+    BranchVec tmp_branchvec;
 
     str::split(str_,':',&paths);
 
     for(size_t i = 0; i < paths.size(); i++)
       {
-      Branches tmp;
+        rv = l::parse(paths[i],branches_->default_minfreespace,&tmp_branchvec);
+        if(rv < 0)
+          return rv;
+      }
 
-      parse(paths[i],tmp);
+    branches_->vec.clear();
+    branches_->vec.insert(branches_->vec.end(),
+                          tmp_branchvec.begin(),
+                          tmp_branchvec.end());
 
-      branches_.insert(branches_.end(),
-                       tmp.begin(),
-                       tmp.end());
+    return 0;
   }
-}
 
-static
-void
-add_begin(Branches          &branches_,
-          const std::string &str_)
-{
+  static
+  int
+  add_begin(const std::string &str_,
+            Branches          *branches_)
+  {
+    int rv;
     vector<string> paths;
+    BranchVec tmp_branchvec;
 
     str::split(str_,':',&paths);
 
     for(size_t i = 0; i < paths.size(); i++)
       {
-      Branches tmp;
+        rv = l::parse(paths[i],branches_->default_minfreespace,&tmp_branchvec);
+        if(rv < 0)
+          return rv;
+      }
 
-      parse(paths[i],tmp);
+    branches_->vec.insert(branches_->vec.begin(),
+                          tmp_branchvec.begin(),
+                          tmp_branchvec.end());
 
-      branches_.insert(branches_.begin(),
-                       tmp.begin(),
-                       tmp.end());
+    return 0;
   }
-}
 
-static
-void
-add_end(Branches          &branches_,
-        const std::string &str_)
-{
+  static
+  int
+  add_end(const std::string &str_,
+          Branches          *branches_)
+  {
+    int rv;
     vector<string> paths;
+    BranchVec tmp_branchvec;
 
     str::split(str_,':',&paths);
 
     for(size_t i = 0; i < paths.size(); i++)
       {
-      Branches tmp;
+        rv = l::parse(paths[i],branches_->default_minfreespace,&tmp_branchvec);
+        if(rv < 0)
+          return rv;
+      }
 
-      parse(paths[i],tmp);
+    branches_->vec.insert(branches_->vec.end(),
+                          tmp_branchvec.begin(),
+                          tmp_branchvec.end());
 
-      branches_.insert(branches_.end(),
-                       tmp.begin(),
-                       tmp.end());
+    return 0;
   }
-}
 
-static
-void
-erase_begin(Branches &branches_)
-{
-  branches_.erase(branches_.begin());
-}
+  static
+  int
+  erase_begin(BranchVec *branches_)
+  {
+    branches_->erase(branches_->begin());
 
-static
-void
-erase_end(Branches &branches_)
-{
-  branches_.pop_back();
-}
+    return 0;
+  }
 
-static
-void
-erase_fnmatch(Branches          &branches_,
-              const std::string &str_)
-{
+  static
+  int
+  erase_end(BranchVec *branches_)
+  {
+    branches_->pop_back();
+
+    return 0;
+  }
+
+  static
+  int
+  erase_fnmatch(const std::string &str_,
+                Branches          *branches_)
+  {
     vector<string> patterns;
 
     str::split(str_,':',&patterns);
 
-  for(Branches::iterator i = branches_.begin();
-      i != branches_.end();)
+    for(BranchVec::iterator i = branches_->vec.begin();
+        i != branches_->vec.end();)
       {
         int match = FNM_NOMATCH;
 
@@ -200,68 +358,55 @@ erase_fnmatch(Branches          &branches_,
             match = ::fnmatch(pi->c_str(),i->path.c_str(),0);
           }
 
-      i = ((match == 0) ? branches_.erase(i) : (i+1));
+        i = ((match == 0) ? branches_->vec.erase(i) : (i+1));
+      }
+
+    return 0;
   }
 }
 
 int
 Branches::from_string(const std::string &s_)
 {
-  rwlock::WriteGuard guard(&lock);
+  rwlock::WriteGuard guard(lock);
+
   std::string instr;
   std::string values;
 
-  ::split(s_,&instr,&values);
+  l::split(s_,&instr,&values);
 
   if(instr == "+")
-    ::add_end(*this,values);
-  ef(instr == "+<")
-    ::add_begin(*this,values);
-  ef(instr == "+>")
-    ::add_end(*this,values);
-  ef(instr == "-")
-    ::erase_fnmatch(*this,values);
-  ef(instr == "-<")
-    ::erase_begin(*this);
-  ef(instr == "->")
-    ::erase_end(*this);
-  ef(instr == "=")
-    ::set(*this,values);
-  ef(instr.empty())
-    ::set(*this,values);
-  else
-    return -EINVAL;
+    return l::add_end(values,this);
+  if(instr == "+<")
+    return l::add_begin(values,this);
+  if(instr == "+>")
+    return l::add_end(values,this);
+  if(instr == "-")
+    return l::erase_fnmatch(values,this);
+  if(instr == "-<")
+    return l::erase_begin(&vec);
+  if(instr == "->")
+    return l::erase_end(&vec);
+  if(instr == "=")
+    return l::set(values,this);
+  if(instr.empty())
+    return l::set(values,this);
 
-  return 0;
+  return -EINVAL;
 }
 
 string
 Branches::to_string(void) const
 {
-  rwlock::ReadGuard guard(&lock);
-  string tmp;
+  rwlock::ReadGuard guard(lock);
 
-  for(size_t i = 0; i < size(); i++)
-    {
-      const Branch &branch = (*this)[i];
-
-      tmp += branch.path;
+  string tmp;
 
-      tmp += '=';
-      switch(branch.mode)
+  for(size_t i = 0; i < vec.size(); i++)
     {
-        default:
-        case Branch::RW:
-          tmp += "RW";
-          break;
-        case Branch::RO:
-          tmp += "RO";
-          break;
-        case Branch::NC:
-          tmp += "NC";
-          break;
-        }
+      const Branch &branch = vec[i];
 
+      tmp += branch.to_string();
       tmp += ':';
     }
 
@@ -274,11 +419,11 @@ Branches::to_string(void) const
 void
 Branches::to_paths(vector<string> &vec_) const
 {
-  rwlock::ReadGuard guard(&lock);
+  rwlock::ReadGuard guard(lock);
 
-  for(size_t i = 0; i < size(); i++)
+  for(size_t i = 0; i < vec.size(); i++)
     {
-      const Branch &branch = (*this)[i];
+      const Branch &branch = vec[i];
 
       vec_.push_back(branch.path);
     }
@@ -299,12 +444,13 @@ SrcMounts::from_string(const std::string &s_)
 std::string
 SrcMounts::to_string(void) const
 {
-  rwlock::ReadGuard guard(&_branches.lock);
+  rwlock::ReadGuard guard(_branches.lock);
+
   std::string rv;
 
-  for(uint64_t i = 0; i < _branches.size(); i++)
+  for(uint64_t i = 0; i < _branches.vec.size(); i++)
     {
-      rv += _branches[i].path;
+      rv += _branches.vec[i].path;
       rv += ':';
     }
 

src/branch.hpp

@@ -20,16 +20,25 @@
 
 #include "rwlock.hpp"
 #include "tofrom_string.hpp"
+#include "nonstd/optional.hpp"
 
 #include <string>
 #include <vector>
 
+#include <stdint.h>
 #include <pthread.h>
 
-class Branch
+class Branch : public ToFromString
 {
 public:
-  enum Mode
+  Branch(const uint64_t &default_minfreespace);
+
+public:
+  int from_string(const std::string &str);
+  std::string to_string(void) const;
+
+public:
+  enum class Mode
     {
       INVALID,
       RO,
@@ -37,18 +46,30 @@ public:
       NC
     };
 
+public:
   Mode        mode;
   std::string path;
+  uint64_t    minfreespace() const;
 
+public:
+  void set_minfreespace(const uint64_t minfreespace);
+
+public:
   bool ro(void) const;
   bool nc(void) const;
   bool ro_or_nc(void) const;
+
+private:
+  nonstd::optional<uint64_t>  _minfreespace;
+  const uint64_t             *_default_minfreespace;
 };
 
-class Branches : public std::vector<Branch>, public ToFromString
+typedef std::vector<Branch> BranchVec;
+
+class Branches : public ToFromString
 {
 public:
-  Branches();
+  Branches(const uint64_t &default_minfreespace_);
 
 public:
   int from_string(const std::string &str);
@@ -59,6 +80,8 @@ public:
 
 public:
   mutable pthread_rwlock_t lock;
+  BranchVec vec;
+  const uint64_t &default_minfreespace;
 };
 
 class SrcMounts : public ToFromString

src/config.cpp

@@ -67,7 +67,7 @@ Config::Config()
 
   async_read(true),
   auto_cache(false),
-  branches(),
+  branches(minfreespace),
   cache_attr(1),
   cache_entry(1),
   cache_files(CacheFiles::ENUM::LIBFUSE),

src/from_string.cpp

@@ -67,22 +67,22 @@ namespace str
       {
       case 'k':
       case 'K':
-        tmp *= 1024;
+        tmp *= 1024ULL;
         break;
 
       case 'm':
       case 'M':
-        tmp *= (1024 * 1024);
+        tmp *= (1024ULL * 1024ULL);
         break;
 
       case 'g':
       case 'G':
-        tmp *= (1024 * 1024 * 1024);
+        tmp *= (1024ULL * 1024ULL * 1024ULL);
         break;
 
       case 't':
       case 'T':
-        tmp *= (1024ULL * 1024 * 1024 * 1024);
+        tmp *= (1024ULL * 1024ULL * 1024ULL * 1024ULL);
         break;
 
       case '\0':

src/fs_findonfs.cpp

@@ -24,10 +24,11 @@
 
 #include <string>
 
-namespace fs
+namespace l
 {
+  static
   int
-  findonfs(const Branches    &branches_,
+  findonfs(const BranchVec   &branches_,
            const std::string &fusepath_,
            const int          fd_,
            std::string       *basepath_)
@@ -37,7 +38,6 @@ namespace fs
     struct stat st;
     std::string fullpath;
     const Branch *branch;
-    const rwlock::ReadGuard guard(&branches_.lock);
 
     rv = fs::fstat(fd_,&st);
     if(rv == -1)
@@ -65,3 +65,17 @@ namespace fs
     return (errno=ENOENT,-1);
   }
 }
+
+namespace fs
+{
+  int
+  findonfs(const Branches    &branches_,
+           const std::string &fusepath_,
+           const int          fd_,
+           std::string       *basepath_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return l::findonfs(branches_.vec,fusepath_,fd_,basepath_);
+  }
+}

src/fs_movefile.cpp

@@ -49,7 +49,6 @@ namespace l
   int
   movefile(Policy::Func::Create  createFunc_,
            const Branches       &branches_,
-           const uint64_t        minfreepsace_,
            const string         &fusepath_,
            int                  *origfd_)
   {
@@ -73,7 +72,7 @@ namespace l
     if(rv == -1)
       return -1;
 
-    rv = createFunc_(branches_,fusepath_,minfreepsace_,&fdout_path);
+    rv = createFunc_(branches_,fusepath_,&fdout_path);
     if(rv == -1)
       return -1;
 
@@ -135,22 +134,20 @@ namespace fs
   int
   movefile(const Policy   *policy_,
            const Branches &basepaths_,
-           const uint64_t  minfreepsace_,
            const string   &fusepath_,
            int            *origfd_)
   {
-    return l::movefile(policy_,basepaths_,minfreepsace_,fusepath_,origfd_);
+    return l::movefile(policy_,basepaths_,fusepath_,origfd_);
   }
 
   int
   movefile_as_root(const Policy   *policy_,
                    const Branches &basepaths_,
-                   const uint64_t  minfreepsace_,
                    const string   &fusepath_,
                    int            *origfd_)
   {
     const ugid::Set ugid(0,0);
 
-    return fs::movefile(policy_,basepaths_,minfreepsace_,fusepath_,origfd_);
+    return fs::movefile(policy_,basepaths_,fusepath_,origfd_);
   }
 }

src/fs_movefile.hpp

@@ -26,14 +26,12 @@ namespace fs
   int
   movefile(const Policy      *policy,
            const Branches    &branches,
-           const uint64_t     minfreepsace,
            const std::string &fusepath,
            int               *origfd);
 
   int
   movefile_as_root(const Policy      *policy,
                    const Branches    &branches,
-                   const uint64_t     minfreepsace,
                    const std::string &fusepath,
                    int               *origfd);
 }

src/fuse_access.cpp

@@ -32,7 +32,6 @@ namespace l
   int
   access(Policy::Func::Search  searchFunc,
          const Branches       &branches_,
-         const uint64_t        minfreespace,
          const char           *fusepath,
          const int             mask)
   {
@@ -40,7 +39,7 @@ namespace l
     string fullpath;
     vector<string> basepaths;
 
-    rv = searchFunc(branches_,fusepath,minfreespace,&basepaths);
+    rv = searchFunc(branches_,fusepath,&basepaths);
     if(rv == -1)
       return -errno;
 
@@ -64,7 +63,6 @@ namespace FUSE
 
     return l::access(config.func.access.policy,
                      config.branches,
-                     config.minfreespace,
                      fusepath,
                      mask);
   }

src/fuse_chmod.cpp

@@ -71,14 +71,13 @@ namespace l
   int
   chmod(Policy::Func::Action  actionFunc_,
         const Branches       &branches_,
-        const uint64_t        minfreespace_,
         const char           *fusepath_,
         const mode_t          mode_)
   {
     int rv;
     vector<string> basepaths;
 
-    rv = actionFunc_(branches_,fusepath_,minfreespace_,&basepaths);
+    rv = actionFunc_(branches_,fusepath_,&basepaths);
     if(rv == -1)
       return -errno;
 
@@ -98,7 +97,6 @@ namespace FUSE
 
     return l::chmod(config.func.chmod.policy,
                     config.branches,
-                    config.minfreespace,
                     fusepath_,
                     mode_);
   }

src/fuse_chown.cpp

@@ -71,7 +71,6 @@ namespace l
   int
   chown(Policy::Func::Action  actionFunc_,
         const Branches       &branches_,
-        const uint64_t        minfreespace_,
         const char           *fusepath_,
         const uid_t           uid_,
         const gid_t           gid_)
@@ -79,7 +78,7 @@ namespace l
     int rv;
     vector<string> basepaths;
 
-    rv = actionFunc_(branches_,fusepath_,minfreespace_,&basepaths);
+    rv = actionFunc_(branches_,fusepath_,&basepaths);
     if(rv == -1)
       return -errno;
 
@@ -100,7 +99,6 @@ namespace FUSE
 
     return l::chown(config.func.chown.policy,
                     config.branches,
-                    config.minfreespace,
                     fusepath_,
                     uid_,
                     gid_);

src/fuse_create.cpp

@@ -128,7 +128,6 @@ namespace l
   create(Policy::Func::Search  searchFunc_,
          Policy::Func::Create  createFunc_,
          const Branches       &branches_,
-         const uint64_t        minfreespace_,
          const char           *fusepath_,
          const mode_t          mode_,
          const mode_t          umask_,
@@ -143,11 +142,11 @@ namespace l
 
     fusedirpath = fs::path::dirname(fusepath_);
 
-    rv = searchFunc_(branches_,fusedirpath,minfreespace_,&existingpaths);
+    rv = searchFunc_(branches_,fusedirpath,&existingpaths);
     if(rv == -1)
       return -errno;
 
-    rv = createFunc_(branches_,fusedirpath,minfreespace_,&createpaths);
+    rv = createFunc_(branches_,fusedirpath,&createpaths);
     if(rv == -1)
       return -errno;
 
@@ -183,7 +182,6 @@ namespace FUSE
     return l::create(config.func.getattr.policy,
                      config.func.create.policy,
                      config.branches,
-                     config.minfreespace,
                      fusepath_,
                      mode_,
                      fc->umask,

src/fuse_getattr.cpp

@@ -61,7 +61,6 @@ namespace l
   int
   getattr(Policy::Func::Search  searchFunc_,
           const Branches       &branches_,
-          const uint64_t        minfreespace_,
           const char           *fusepath_,
           struct stat          *st_,
           const bool            symlinkify_,
@@ -71,7 +70,7 @@ namespace l
     string fullpath;
     vector<string> basepaths;
 
-    rv = searchFunc_(branches_,fusepath_,minfreespace_,&basepaths);
+    rv = searchFunc_(branches_,fusepath_,&basepaths);
     if(rv == -1)
       return -errno;
 
@@ -108,7 +107,6 @@ namespace FUSE
 
     rv = l::getattr(config.func.getattr.policy,
                     config.branches,
-                    config.minfreespace,
                     fusepath_,
                     st_,
                     config.symlinkify,

src/fuse_getxattr.cpp

@@ -165,7 +165,6 @@ namespace l
   int
   getxattr(Policy::Func::Search  searchFunc_,
            const Branches       &branches_,
-           const size_t          minfreespace_,
            const char           *fusepath_,
            const char           *attrname_,
            char                 *buf_,
@@ -175,7 +174,7 @@ namespace l
     string fullpath;
     vector<string> basepaths;
 
-    rv = searchFunc_(branches_,fusepath_,minfreespace_,&basepaths);
+    rv = searchFunc_(branches_,fusepath_,&basepaths);
     if(rv == -1)
       return -errno;
 
@@ -222,7 +221,6 @@ namespace FUSE
 
     return l::getxattr(config.func.getxattr.policy,
                        config.branches,
-                       config.minfreespace,
                        fusepath_,
                        attrname_,
                        buf_,

src/fuse_ioctl.cpp

@@ -136,7 +136,6 @@ namespace l
   int
   ioctl_dir_base(Policy::Func::Search  searchFunc_,
                  const Branches       &branches_,
-                 const uint64_t        minfreespace_,
                  const char           *fusepath_,
                  const uint32_t        cmd_,
                  void                 *data_,
@@ -147,7 +146,7 @@ namespace l
     string fullpath;
     vector<string> basepaths;
 
-    rv = searchFunc_(branches_,fusepath_,minfreespace_,&basepaths);
+    rv = searchFunc_(branches_,fusepath_,&basepaths);
     if(rv == -1)
       return -errno;
 
@@ -178,7 +177,6 @@ namespace l
 
     return l::ioctl_dir_base(config.func.open.policy,
                              config.branches,
-                             config.minfreespace,
                              di->fusepath.c_str(),
                              cmd_,
                              data_,
@@ -257,14 +255,13 @@ namespace l
   int
   file_basepath(Policy::Func::Search  searchFunc_,
                 const Branches       &branches_,
-                const uint64_t        minfreespace_,
                 const char           *fusepath_,
                 void                 *data_)
   {
     int rv;
     vector<string> basepaths;
 
-    rv = searchFunc_(branches_,fusepath_,minfreespace_,&basepaths);
+    rv = searchFunc_(branches_,fusepath_,&basepaths);
     if(rv == -1)
       return -errno;
 
@@ -281,7 +278,6 @@ namespace l
 
     return l::file_basepath(config.func.open.policy,
                             config.branches,
-                            config.minfreespace,
                             fusepath.c_str(),
                             data_);
   }
@@ -300,7 +296,6 @@ namespace l
   int
   file_fullpath(Policy::Func::Search  searchFunc_,
                 const Branches       &branches_,
-                const uint64_t        minfreespace_,
                 const string         &fusepath_,
                 void                 *data_)
   {
@@ -308,7 +303,7 @@ namespace l
     string fullpath;
     vector<string> basepaths;
 
-    rv = searchFunc_(branches_,fusepath_,minfreespace_,&basepaths);
+    rv = searchFunc_(branches_,fusepath_,&basepaths);
     if(rv == -1)
       return -errno;
 
@@ -327,7 +322,6 @@ namespace l
 
     return l::file_fullpath(config.func.open.policy,
                             config.branches,
-                            config.minfreespace,
                             fusepath,
                             data_);
   }

src/fuse_link.cpp

@@ -83,7 +83,6 @@ namespace l
   link_create_path(Policy::Func::Search  searchFunc_,
                    Policy::Func::Action  actionFunc_,
                    const Branches       &branches_,
-                   const uint64_t        minfreespace_,
                    const char           *oldfusepath_,
                    const char           *newfusepath_)
   {
@@ -92,13 +91,13 @@ namespace l
     vector<string> oldbasepaths;
     vector<string> newbasepaths;
 
-    rv = actionFunc_(branches_,oldfusepath_,minfreespace_,&oldbasepaths);
+    rv = actionFunc_(branches_,oldfusepath_,&oldbasepaths);
     if(rv == -1)
       return -errno;
 
     newfusedirpath = fs::path::dirname(newfusepath_);
 
-    rv = searchFunc_(branches_,newfusedirpath,minfreespace_,&newbasepaths);
+    rv = searchFunc_(branches_,newfusedirpath,&newbasepaths);
     if(rv == -1)
       return -errno;
 
@@ -112,7 +111,6 @@ namespace l
   clonepath_if_would_create(Policy::Func::Search  searchFunc_,
                             Policy::Func::Create  createFunc_,
                             const Branches       &branches_,
-                            const uint64_t        minfreespace_,
                             const string         &oldbasepath_,
                             const char           *oldfusepath_,
                             const char           *newfusepath_)
@@ -123,14 +121,14 @@ namespace l
 
     newfusedirpath = fs::path::dirname(newfusepath_);
 
-    rv = createFunc_(branches_,newfusedirpath,minfreespace_,&newbasepath);
+    rv = createFunc_(branches_,newfusedirpath,&newbasepath);
     if(rv == -1)
       return -1;
 
     if(oldbasepath_ != newbasepath[0])
       return (errno=EXDEV,-1);
 
-    rv = searchFunc_(branches_,newfusedirpath,minfreespace_,&newbasepath);
+    rv = searchFunc_(branches_,newfusedirpath,&newbasepath);
     if(rv == -1)
       return -1;
 
@@ -142,7 +140,6 @@ namespace l
   link_preserve_path_core(Policy::Func::Search  searchFunc_,
                           Policy::Func::Create  createFunc_,
                           const Branches       &branches_,
-                          const uint64_t        minfreespace_,
                           const string         &oldbasepath_,
                           const char           *oldfusepath_,
                           const char           *newfusepath_,
@@ -159,7 +156,7 @@ namespace l
     if((rv == -1) && (errno == ENOENT))
       {
         rv = l::clonepath_if_would_create(searchFunc_,createFunc_,
-                                          branches_,minfreespace_,
+                                          branches_,
                                           oldbasepath_,
                                           oldfusepath_,newfusepath_);
         if(rv != -1)
@@ -174,7 +171,6 @@ namespace l
   link_preserve_path_loop(Policy::Func::Search  searchFunc_,
                           Policy::Func::Create  createFunc_,
                           const Branches       &branches_,
-                          const uint64_t        minfreespace_,
                           const char           *oldfusepath_,
                           const char           *newfusepath_,
                           const vector<string> &oldbasepaths_)
@@ -185,7 +181,7 @@ namespace l
     for(size_t i = 0, ei = oldbasepaths_.size(); i != ei; i++)
       {
         error = l::link_preserve_path_core(searchFunc_,createFunc_,
-                                           branches_,minfreespace_,
+                                           branches_,
                                            oldbasepaths_[i],
                                            oldfusepath_,newfusepath_,
                                            error);
@@ -200,19 +196,18 @@ namespace l
                      Policy::Func::Action  actionFunc_,
                      Policy::Func::Create  createFunc_,
                      const Branches       &branches_,
-                     const uint64_t        minfreespace_,
                      const char           *oldfusepath_,
                      const char           *newfusepath_)
   {
     int rv;
     vector<string> oldbasepaths;
 
-    rv = actionFunc_(branches_,oldfusepath_,minfreespace_,&oldbasepaths);
+    rv = actionFunc_(branches_,oldfusepath_,&oldbasepaths);
     if(rv == -1)
       return -errno;
 
     return l::link_preserve_path_loop(searchFunc_,createFunc_,
-                                      branches_,minfreespace_,
+                                      branches_,
                                       oldfusepath_,newfusepath_,
                                       oldbasepaths);
   }
@@ -233,14 +228,12 @@ namespace FUSE
                                    config.func.link.policy,
                                    config.func.create.policy,
                                    config.branches,
-                                   config.minfreespace,
                                    from_,
                                    to_);
 
     return l::link_create_path(config.func.link.policy,
                                config.func.create.policy,
                                config.branches,
-                               config.minfreespace,
                                from_,
                                to_);
   }

src/fuse_listxattr.cpp

@@ -59,7 +59,6 @@ namespace l
   int
   listxattr(Policy::Func::Search  searchFunc_,
             const Branches       &branches_,
-            const uint64_t        minfreespace_,
             const char           *fusepath_,
             char                 *list_,
             const size_t          size_)
@@ -68,7 +67,7 @@ namespace l
     string fullpath;
     vector<string> basepaths;
 
-    rv = searchFunc_(branches_,fusepath_,minfreespace_,&basepaths);
+    rv = searchFunc_(branches_,fusepath_,&basepaths);
     if(rv == -1)
       return -errno;
 
@@ -107,7 +106,6 @@ namespace FUSE
 
     return l::listxattr(config.func.listxattr.policy,
                         config.branches,
-                        config.minfreespace,
                         fusepath_,
                         list_,
                         size_);

src/fuse_mkdir.cpp

@@ -97,7 +97,6 @@ namespace l
   mkdir(Policy::Func::Search  searchFunc_,
         Policy::Func::Create  createFunc_,
         const Branches       &branches_,
-        const uint64_t        minfreespace_,
         const char           *fusepath_,
         const mode_t          mode_,
         const mode_t          umask_)
@@ -109,11 +108,11 @@ namespace l
 
     fusedirpath = fs::path::dirname(fusepath_);
 
-    rv = searchFunc_(branches_,fusedirpath,minfreespace_,&existingpaths);
+    rv = searchFunc_(branches_,fusedirpath,&existingpaths);
     if(rv == -1)
       return -errno;
 
-    rv = createFunc_(branches_,fusedirpath,minfreespace_,&createpaths);
+    rv = createFunc_(branches_,fusedirpath,&createpaths);
     if(rv == -1)
       return -errno;
 
@@ -139,7 +138,6 @@ namespace FUSE
     return l::mkdir(config.func.getattr.policy,
                     config.func.mkdir.policy,
                     config.branches,
-                    config.minfreespace,
                     fusepath_,
                     mode_,
                     fc->umask);

src/fuse_mknod.cpp

@@ -99,7 +99,6 @@ namespace l
   mknod(Policy::Func::Search  searchFunc_,
         Policy::Func::Create  createFunc_,
         const Branches       &branches_,
-        const uint64_t        minfreespace_,
         const char           *fusepath_,
         const mode_t          mode_,
         const mode_t          umask_,
@@ -112,11 +111,11 @@ namespace l
 
     fusedirpath = fs::path::dirname(fusepath_);
 
-    rv = searchFunc_(branches_,fusedirpath,minfreespace_,&existingpaths);
+    rv = searchFunc_(branches_,fusedirpath,&existingpaths);
     if(rv == -1)
       return -errno;
 
-    rv = createFunc_(branches_,fusedirpath,minfreespace_,&createpaths);
+    rv = createFunc_(branches_,fusedirpath,&createpaths);
     if(rv == -1)
       return -errno;
 
@@ -140,7 +139,6 @@ namespace FUSE
     return l::mknod(config.func.getattr.policy,
                     config.func.mknod.policy,
                     config.branches,
-                    config.minfreespace,
                     fusepath_,
                     mode_,
                     fc->umask,

src/fuse_open.cpp

@@ -183,7 +183,6 @@ namespace l
   open(Policy::Func::Search  searchFunc_,
        PolicyCache          &cache,
        const Branches       &branches_,
-       const uint64_t        minfreespace_,
        const char           *fusepath_,
        const int             flags_,
        const bool            link_cow_,
@@ -193,7 +192,7 @@ namespace l
     int rv;
     string basepath;
 
-    rv = cache(searchFunc_,branches_,fusepath_,minfreespace_,&basepath);
+    rv = cache(searchFunc_,branches_,fusepath_,&basepath);
     if(rv == -1)
       return -errno;
 
@@ -219,7 +218,6 @@ namespace FUSE
     return l::open(config.func.open.policy,
                    config.open_cache,
                    config.branches,
-                   config.minfreespace,
                    fusepath_,
                    ffi_->flags,
                    config.link_cow,

src/fuse_readdir.cpp

@@ -36,7 +36,6 @@ namespace FUSE
     const fuse_context *fc     = fuse_get_context();
     const Config       &config = Config::ro();
     const ugid::Set     ugid(fc->uid,fc->gid);
-    const rwlock::ReadGuard  guard(&config.branches.lock);
 
     switch(config.readdir)
       {

src/fuse_readdir_linux.cpp

@@ -26,6 +26,7 @@
 #include "hashset.hpp"
 #include "linux_dirent64.h"
 #include "mempools.hpp"
+#include "rwlock.hpp"
 
 #include <fuse.h>
 #include <fuse_dirents.h>
@@ -52,7 +53,7 @@ namespace l
 
   static
   int
-  readdir(const Branches &branches_,
+  readdir(const BranchVec &branches_,
           const char      *dirname_,
           fuse_dirents_t  *buf_)
   {
@@ -121,6 +122,17 @@ namespace l
 
     return 0;
   }
+
+  static
+  int
+  readdir(const Branches &branches_,
+          const char     *dirname_,
+          fuse_dirents_t *buf_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return l::readdir(branches_.vec,dirname_,buf_);
+  }
 }
 
 namespace FUSE

src/fuse_readdir_plus.cpp

@@ -36,7 +36,6 @@ namespace FUSE
     const fuse_context      *fc     = fuse_get_context();
     const Config            &config = Config::ro();
     const ugid::Set          ugid(fc->uid,fc->gid);
-    const rwlock::ReadGuard  guard(&config.branches.lock);
 
     switch(config.readdir)
       {

src/fuse_readdir_plus_linux.cpp

@@ -53,7 +53,7 @@ namespace l
 
   static
   int
-  readdir_plus(const Branches &branches_,
+  readdir_plus(const BranchVec &branches_,
                const char      *dirname_,
                const uint64_t   entry_timeout_,
                const uint64_t   attr_timeout_,
@@ -136,6 +136,19 @@ namespace l
 
     return 0;
   }
+
+  static
+  int
+  readdir_plus(const Branches &branches_,
+               const char     *dirname_,
+               const uint64_t  entry_timeout_,
+               const uint64_t  attr_timeout_,
+               fuse_dirents_t *buf_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return l::readdir_plus(branches_.vec,dirname_,entry_timeout_,attr_timeout_,buf_);
+  }
 }
 
 namespace FUSE

src/fuse_readdir_plus_posix.cpp

@@ -28,6 +28,7 @@
 #include "fs_readdir.hpp"
 #include "fs_stat.hpp"
 #include "hashset.hpp"
+#include "rwlock.hpp"
 
 #include <fuse.h>
 #include <fuse_dirents.h>
@@ -57,7 +58,7 @@ namespace l
 
   static
   int
-  readdir_plus(const Branches &branches_,
+  readdir_plus(const BranchVec &branches_,
                const char      *dirname_,
                const uint64_t   entry_timeout_,
                const uint64_t   attr_timeout_,
@@ -126,6 +127,23 @@ namespace l
 
     return 0;
   }
+
+  static
+  int
+  readdir_plus(const Branches &branches_,
+               const char     *dirname_,
+               const uint64_t  entry_timeout_,
+               const uint64_t  attr_timeout_,
+               fuse_dirents_t *buf_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return l::readdir_plus(branches_.vec,
+                           dirname_,
+                           entry_timeout_,
+                           attr_timeout_,
+                           buf_);
+  }
 }
 
 namespace FUSE

src/fuse_readdir_posix.cpp

@@ -19,14 +19,15 @@
 #include "branch.hpp"
 #include "errno.hpp"
 #include "fs_closedir.hpp"
+#include "fs_devid.hpp"
 #include "fs_dirfd.hpp"
+#include "fs_inode.hpp"
 #include "fs_opendir.hpp"
+#include "fs_path.hpp"
 #include "fs_readdir.hpp"
 #include "fs_stat.hpp"
-#include "fs_devid.hpp"
-#include "fs_inode.hpp"
-#include "fs_path.hpp"
 #include "hashset.hpp"
+#include "rwlock.hpp"
 
 #include <fuse.h>
 #include <fuse_dirents.h>
@@ -56,7 +57,7 @@ namespace l
 
   static
   int
-  readdir(const Branches &branches_,
+  readdir(const BranchVec &branches_,
           const char      *dirname_,
           fuse_dirents_t  *buf_)
   {
@@ -109,6 +110,17 @@ namespace l
 
     return 0;
   }
+
+  static
+  int
+  readdir(const Branches &branches_,
+          const char     *dirname_,
+          fuse_dirents_t *buf_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return l::readdir(branches_.vec,dirname_,buf_);
+  }
 }
 
 namespace FUSE

src/fuse_readlink.cpp

@@ -94,7 +94,6 @@ namespace l
   int
   readlink(Policy::Func::Search  searchFunc_,
            const Branches       &branches_,
-           const uint64_t        minfreespace_,
            const char           *fusepath_,
            char                 *buf_,
            const size_t          size_,
@@ -104,7 +103,7 @@ namespace l
     int rv;
     vector<string> basepaths;
 
-    rv = searchFunc_(branches_,fusepath_,minfreespace_,&basepaths);
+    rv = searchFunc_(branches_,fusepath_,&basepaths);
     if(rv == -1)
       return -errno;
 
@@ -126,7 +125,6 @@ namespace FUSE
 
     return l::readlink(config.func.readlink.policy,
                        config.branches,
-                       config.minfreespace,
                        fusepath_,
                        buf_,
                        size_,

src/fuse_removexattr.cpp

@@ -70,14 +70,13 @@ namespace l
   int
   removexattr(Policy::Func::Action  actionFunc_,
               const Branches       &branches_,
-              const uint64_t        minfreespace_,
               const char           *fusepath_,
               const char           *attrname_)
   {
     int rv;
     vector<string> basepaths;
 
-    rv = actionFunc_(branches_,fusepath_,minfreespace_,&basepaths);
+    rv = actionFunc_(branches_,fusepath_,&basepaths);
     if(rv == -1)
       return -errno;
 
@@ -103,7 +102,6 @@ namespace FUSE
 
     return l::removexattr(config.func.removexattr.policy,
                           config.branches,
-                          config.minfreespace,
                           fusepath_,
                           attrname_);
   }

src/fuse_rename.cpp

@@ -99,7 +99,6 @@ int
 _rename_create_path(Policy::Func::Search  searchFunc,
                     Policy::Func::Action  actionFunc,
                     const Branches       &branches_,
-                    const uint64_t        minfreespace,
                     const char           *oldfusepath,
                     const char           *newfusepath)
 {
@@ -111,13 +110,13 @@ _rename_create_path(Policy::Func::Search  searchFunc,
   vector<string> oldbasepaths;
   vector<string> branches;
 
-  rv = actionFunc(branches_,oldfusepath,minfreespace,&oldbasepaths);
+  rv = actionFunc(branches_,oldfusepath,&oldbasepaths);
   if(rv == -1)
     return -errno;
 
   newfusedirpath = fs::path::dirname(newfusepath);
 
-  rv = searchFunc(branches_,newfusedirpath,minfreespace,&newbasepath);
+  rv = searchFunc(branches_,newfusedirpath,&newbasepath);
   if(rv == -1)
     return -errno;
 
@@ -146,14 +145,13 @@ static
 int
 _clonepath(Policy::Func::Search  searchFunc,
            const Branches       &branches_,
-           const uint64_t        minfreespace,
            const string         &dstbasepath,
            const string         &fusedirpath)
 {
   int rv;
   vector<string> srcbasepath;
 
-  rv = searchFunc(branches_,fusedirpath,minfreespace,&srcbasepath);
+  rv = searchFunc(branches_,fusedirpath,&srcbasepath);
   if(rv == -1)
     return -errno;
 
@@ -167,7 +165,6 @@ int
 _clonepath_if_would_create(Policy::Func::Search  searchFunc,
                            Policy::Func::Create  createFunc,
                            const Branches       &branches_,
-                           const uint64_t        minfreespace,
                            const string         &oldbasepath,
                            const char           *oldfusepath,
                            const char           *newfusepath)
@@ -178,12 +175,12 @@ _clonepath_if_would_create(Policy::Func::Search  searchFunc,
 
   newfusedirpath = fs::path::dirname(newfusepath);
 
-  rv = createFunc(branches_,newfusedirpath,minfreespace,&newbasepath);
+  rv = createFunc(branches_,newfusedirpath,&newbasepath);
   if(rv == -1)
     return rv;
 
   if(oldbasepath == newbasepath[0])
-    return _clonepath(searchFunc,branches_,minfreespace,oldbasepath,newfusedirpath);
+    return _clonepath(searchFunc,branches_,oldbasepath,newfusedirpath);
 
   return (errno=EXDEV,-1);
 }
@@ -193,7 +190,6 @@ void
 _rename_preserve_path_core(Policy::Func::Search  searchFunc,
                            Policy::Func::Create  createFunc,
                            const Branches       &branches_,
-                           const uint64_t        minfreespace,
                            const vector<string> &oldbasepaths,
                            const string         &oldbasepath,
                            const char           *oldfusepath,
@@ -218,8 +214,8 @@ _rename_preserve_path_core(Policy::Func::Search  searchFunc,
       if((rv == -1) && (errno == ENOENT))
         {
           rv = _clonepath_if_would_create(searchFunc,createFunc,
-                                          branches_,minfreespace,
-                                          oldbasepath,oldfusepath,newfusepath);
+                                          branches_,oldbasepath,
+                                          oldfusepath,newfusepath);
           if(rv == 0)
             rv = fs::rename(oldfullpath,newfullpath);
         }
@@ -240,7 +236,6 @@ _rename_preserve_path(Policy::Func::Search  searchFunc,
                       Policy::Func::Action  actionFunc,
                       Policy::Func::Create  createFunc,
                       const Branches       &branches_,
-                      const uint64_t        minfreespace,
                       const char           *oldfusepath,
                       const char           *newfusepath)
 {
@@ -250,7 +245,7 @@ _rename_preserve_path(Policy::Func::Search  searchFunc,
   vector<string> oldbasepaths;
   vector<string> branches;
 
-  rv = actionFunc(branches_,oldfusepath,minfreespace,&oldbasepaths);
+  rv = actionFunc(branches_,oldfusepath,&oldbasepaths);
   if(rv == -1)
     return -errno;
 
@@ -262,7 +257,7 @@ _rename_preserve_path(Policy::Func::Search  searchFunc,
       const string &oldbasepath = branches[i];
 
       _rename_preserve_path_core(searchFunc,createFunc,
-                                 branches_,minfreespace,
+                                 branches_,
                                  oldbasepaths,oldbasepath,
                                  oldfusepath,newfusepath,
                                  error,toremove);
@@ -291,14 +286,12 @@ namespace FUSE
                                    config.func.rename.policy,
                                    config.func.create.policy,
                                    config.branches,
-                                   config.minfreespace,
                                    oldpath,
                                    newpath);
 
     return _rename_create_path(config.func.getattr.policy,
                                config.func.rename.policy,
                                config.branches,
-                               config.minfreespace,
                                oldpath,
                                newpath);
   }

src/fuse_rmdir.cpp

@@ -69,13 +69,12 @@ namespace l
   int
   rmdir(Policy::Func::Action  actionFunc_,
         const Branches       &branches_,
-        const uint64_t        minfreespace_,
         const char           *fusepath_)
   {
     int rv;
     vector<string> basepaths;
 
-    rv = actionFunc_(branches_,fusepath_,minfreespace_,&basepaths);
+    rv = actionFunc_(branches_,fusepath_,&basepaths);
     if(rv == -1)
       return -errno;
 
@@ -94,7 +93,6 @@ namespace FUSE
 
     return l::rmdir(config.func.rmdir.policy,
                     config.branches,
-                    config.minfreespace,
                     fusepath_);
   }
 }

src/fuse_setxattr.cpp

@@ -124,7 +124,6 @@ namespace l
   int
   setxattr(Policy::Func::Action  actionFunc,
            const Branches       &branches_,
-           const uint64_t        minfreespace,
            const char           *fusepath,
            const char           *attrname,
            const char           *attrval,
@@ -134,7 +133,7 @@ namespace l
     int rv;
     vector<string> basepaths;
 
-    rv = actionFunc(branches_,fusepath,minfreespace,&basepaths);
+    rv = actionFunc(branches_,fusepath,&basepaths);
     if(rv == -1)
       return -errno;
 
@@ -171,7 +170,6 @@ namespace FUSE
 
     return l::setxattr(config.func.setxattr.policy,
                        config.branches,
-                       config.minfreespace,
                        fusepath,
                        attrname,
                        attrval,

src/fuse_statfs.cpp

@@ -19,6 +19,7 @@
 #include "fs_lstat.hpp"
 #include "fs_path.hpp"
 #include "fs_statvfs.hpp"
+#include "rwlock.hpp"
 #include "statvfs_util.hpp"
 #include "ugid.hpp"
 
@@ -84,6 +85,8 @@ namespace l
          const StatFSIgnore  ignore_,
          struct statvfs     *fsstat_)
   {
+    rwlock::ReadGuard guard(branches_.lock);
+
     int rv;
     string fullpath;
     struct stat st;
@@ -96,11 +99,11 @@ namespace l
     min_bsize   = std::numeric_limits<unsigned long>::max();
     min_frsize  = std::numeric_limits<unsigned long>::max();
     min_namemax = std::numeric_limits<unsigned long>::max();
-    for(size_t i = 0, ei = branches_.size(); i < ei; i++)
+    for(size_t i = 0, ei = branches_.vec.size(); i < ei; i++)
       {
         fullpath = ((mode_ == StatFS::ENUM::FULL) ?
-                    fs::path::make(branches_[i].path,fusepath_) :
-                    branches_[i].path);
+                    fs::path::make(branches_.vec[i].path,fusepath_) :
+                    branches_.vec[i].path);
 
         rv = fs::lstat(fullpath,&st);
         if(rv == -1)
@@ -117,7 +120,7 @@ namespace l
         if(stvfs.f_namemax && (min_namemax > stvfs.f_namemax))
           min_namemax = stvfs.f_namemax;
 
-        if(l::should_ignore(ignore_,&branches_[i],StatVFS::readonly(stvfs)))
+        if(l::should_ignore(ignore_,&branches_.vec[i],StatVFS::readonly(stvfs)))
           {
             stvfs.f_bavail = 0;
             stvfs.f_favail = 0;

src/fuse_symlink.cpp

@@ -83,7 +83,6 @@ namespace l
   symlink(Policy::Func::Search  searchFunc_,
           Policy::Func::Create  createFunc_,
           const Branches       &branches_,
-          const uint64_t        minfreespace_,
           const char           *oldpath_,
           const char           *newpath_)
   {
@@ -94,11 +93,11 @@ namespace l
 
     newdirpath = fs::path::dirname(newpath_);
 
-    rv = searchFunc_(branches_,newdirpath,minfreespace_,&existingpaths);
+    rv = searchFunc_(branches_,newdirpath,&existingpaths);
     if(rv == -1)
       return -errno;
 
-    rv = createFunc_(branches_,newdirpath,minfreespace_,&newbasepaths);
+    rv = createFunc_(branches_,newdirpath,&newbasepaths);
     if(rv == -1)
       return -errno;
 
@@ -120,7 +119,6 @@ namespace FUSE
     return l::symlink(config.func.getattr.policy,
                       config.func.symlink.policy,
                       config.branches,
-                      config.minfreespace,
                       oldpath_,
                       newpath_);
   }

src/fuse_truncate.cpp

@@ -72,14 +72,13 @@ namespace l
   int
   truncate(Policy::Func::Action  actionFunc_,
            const Branches       &branches_,
-           const uint64_t        minfreespace_,
            const char           *fusepath_,
            const off_t           size_)
   {
     int rv;
     vector<string> basepaths;
 
-    rv = actionFunc_(branches_,fusepath_,minfreespace_,&basepaths);
+    rv = actionFunc_(branches_,fusepath_,&basepaths);
     if(rv == -1)
       return -errno;
 
@@ -99,7 +98,6 @@ namespace FUSE
 
     return l::truncate(config.func.truncate.policy,
                        config.branches,
-                       config.minfreespace,
                        fusepath_,
                        size_);
   }

src/fuse_unlink.cpp

@@ -69,13 +69,12 @@ namespace l
   int
   unlink(Policy::Func::Action  actionFunc_,
          const Branches       &branches_,
-         const uint64_t        minfreespace_,
          const char           *fusepath_)
   {
     int rv;
     vector<string> basepaths;
 
-    rv = actionFunc_(branches_,fusepath_,minfreespace_,&basepaths);
+    rv = actionFunc_(branches_,fusepath_,&basepaths);
     if(rv == -1)
       return -errno;
 
@@ -96,7 +95,6 @@ namespace FUSE
 
     return l::unlink(config.func.unlink.policy,
                      config.branches,
-                     config.minfreespace,
                      fusepath_);
   }
 }

src/fuse_utimens.cpp

@@ -71,14 +71,13 @@ namespace l
   int
   utimens(Policy::Func::Action  actionFunc_,
           const Branches       &branches_,
-          const uint64_t        minfreespace_,
           const char           *fusepath_,
           const timespec        ts_[2])
   {
     int rv;
     vector<string> basepaths;
 
-    rv = actionFunc_(branches_,fusepath_,minfreespace_,&basepaths);
+    rv = actionFunc_(branches_,fusepath_,&basepaths);
     if(rv == -1)
       return -errno;
 
@@ -98,7 +97,6 @@ namespace FUSE
 
     return l::utimens(config.func.utimens.policy,
                       config.branches,
-                      config.minfreespace,
                       fusepath_,
                       ts_);
   }

src/fuse_write.cpp

@@ -92,7 +92,6 @@ namespace l
 
     rv = fs::movefile_as_root(config.moveonenospc.policy,
                               config.branches,
-                              config.minfreespace,
                               fi_->fusepath,
                               &fi_->fd);
     if(rv == -1)

src/fuse_write_buf.cpp

@@ -74,7 +74,6 @@ namespace l
 
     rv = fs::movefile_as_root(config.moveonenospc.policy,
                               config.branches,
-                              config.minfreespace,
                               fi_->fusepath,
                               &fi_->fd);
     if(rv == -1)

src/num.cpp

@@ -14,11 +14,19 @@
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
+#include "ef.hpp"
+
+#include <string>
+
 #include <stdint.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <time.h>
 
-#include <string>
+#define KB (1024UL)
+#define MB (KB * 1024UL)
+#define GB (MB * 1024UL)
+#define TB (GB * 1024UL)
 
 namespace num
 {
@@ -98,3 +106,27 @@ namespace num
     return 0;
   }
 }
+
+ namespace num
+{
+  std::string
+  humanize(const uint64_t bytes_)
+  {
+    char buf[64];
+
+    if(bytes_ < KB)
+      sprintf(buf,"%lu",bytes_);
+    ef(((bytes_ / TB) * TB) == bytes_)
+      sprintf(buf,"%luT",bytes_ / TB);
+    ef(((bytes_ / GB) * GB) == bytes_)
+      sprintf(buf,"%luG",bytes_ / GB);
+    ef(((bytes_ / MB) * MB) == bytes_)
+      sprintf(buf,"%luM",bytes_ / MB);
+    ef(((bytes_ / KB) * KB) == bytes_)
+      sprintf(buf,"%luK",bytes_ / KB);
+    else
+      sprintf(buf,"%lu",bytes_);
+
+    return std::string(buf);
+  }
+}

src/num.hpp

@@ -26,3 +26,8 @@ namespace num
   int to_double(const std::string &str, double *value);
   int to_time_t(const std::string &str, time_t *value);
 }
+
+namespace num
+{
+  std::string humanize(const uint64_t bytes);
+}

src/option_parser.cpp

@@ -419,7 +419,7 @@ option_processor(void       *data_,
       return process_opt(data,arg_);
 
     case FUSE_OPT_KEY_NONOPT:
-      if(data->config->branches.empty())
+      if(data->config->branches.vec.empty())
         return process_branches(data,arg_);
       else
         return process_mount(data,arg_);

src/policy.hpp

@@ -66,7 +66,7 @@ public:
     typedef const uint64_t cuint64_t;
     typedef const strvec cstrvec;
 
-    typedef int (*Ptr)(Category,const Branches &,const char *,cuint64_t,strvec *);
+    typedef int (*Ptr)(Category,const Branches&,const char*,strvec *);
 
     template <Category T>
     class Base
@@ -81,26 +81,26 @@ public:
       {}
 
       int
-      operator()(const Branches &b,const char *c,cuint64_t d,strvec *e)
+      operator()(const Branches &a,const char *b,strvec *c)
       {
-        return func(T,b,c,d,e);
+        return func(T,a,b,c);
       }
 
       int
-      operator()(const Branches &b,const string &c,cuint64_t d,strvec *e)
+      operator()(const Branches &a,const string &b,strvec *c)
       {
-        return func(T,b,c.c_str(),d,e);
+        return func(T,a,b.c_str(),c);
       }
 
       int
-      operator()(const Branches &b,const char *c,cuint64_t d,string *e)
+      operator()(const Branches &a,const char *b,string *c)
       {
         int rv;
         strvec v;
 
-        rv = func(T,b,c,d,&v);
+        rv = func(T,a,b,&v);
         if(!v.empty())
-          *e = v[0];
+          *c = v[0];
 
         return rv;
       }
@@ -113,27 +113,27 @@ public:
     typedef Base<Category::CREATE> Create;
     typedef Base<Category::SEARCH> Search;
 
-    static int invalid(Category,const Branches&,const char *,cuint64_t,strvec*);
-    static int all(Category,const Branches&,const char*,cuint64_t,strvec*);
-    static int epall(Category,const Branches&,const char*,cuint64_t,strvec*);
-    static int epff(Category,const Branches&,const char *,cuint64_t,strvec*);
-    static int eplfs(Category,const Branches&,const char *,cuint64_t,strvec*);
-    static int eplus(Category,const Branches&,const char *,cuint64_t,strvec*);
-    static int epmfs(Category,const Branches&,const char *,cuint64_t,strvec*);
-    static int eppfrd(Category,const Branches&,const char *,cuint64_t,strvec*);
-    static int eprand(Category,const Branches&,const char *,cuint64_t,strvec*);
-    static int erofs(Category,const Branches&,const char *,cuint64_t,strvec*);
-    static int ff(Category,const Branches&,const char *,cuint64_t,strvec*);
-    static int lfs(Category,const Branches&,const char *,cuint64_t,strvec*);
-    static int lus(Category,const Branches&,const char *,cuint64_t,strvec*);
-    static int mfs(Category,const Branches&,const char *,cuint64_t,strvec*);
-    static int msplfs(Category,const Branches&,const char *,cuint64_t,strvec*);
-    static int msplus(Category,const Branches&,const char *,cuint64_t,strvec*);
-    static int mspmfs(Category,const Branches&,const char *,cuint64_t,strvec*);
-    static int msppfrd(Category,const Branches&,const char *,cuint64_t,strvec*);
-    static int newest(Category,const Branches&,const char *,cuint64_t,strvec*);
-    static int pfrd(Category,const Branches&,const char *,cuint64_t,strvec*);
-    static int rand(Category,const Branches&,const char *,cuint64_t,strvec*);
+    static int invalid(Category,const Branches&,const char *,strvec*);
+    static int all(Category,const Branches&,const char*,strvec*);
+    static int epall(Category,const Branches&,const char*,strvec*);
+    static int epff(Category,const Branches&,const char *,strvec*);
+    static int eplfs(Category,const Branches&,const char *,strvec*);
+    static int eplus(Category,const Branches&,const char *,strvec*);
+    static int epmfs(Category,const Branches&,const char *,strvec*);
+    static int eppfrd(Category,const Branches&,const char *,strvec*);
+    static int eprand(Category,const Branches&,const char *,strvec*);
+    static int erofs(Category,const Branches&,const char *,strvec*);
+    static int ff(Category,const Branches&,const char *,strvec*);
+    static int lfs(Category,const Branches&,const char *,strvec*);
+    static int lus(Category,const Branches&,const char *,strvec*);
+    static int mfs(Category,const Branches&,const char *,strvec*);
+    static int msplfs(Category,const Branches&,const char *,strvec*);
+    static int msplus(Category,const Branches&,const char *,strvec*);
+    static int mspmfs(Category,const Branches&,const char *,strvec*);
+    static int msppfrd(Category,const Branches&,const char *,strvec*);
+    static int newest(Category,const Branches&,const char *,strvec*);
+    static int pfrd(Category,const Branches&,const char *,strvec*);
+    static int rand(Category,const Branches&,const char *,strvec*);
   };
 
 private:

src/policy_all.cpp

@@ -32,12 +32,9 @@ namespace all
 {
   static
   int
-  create(const Branches &branches_,
-         const uint64_t  minfreespace_,
+  create(const BranchVec &branches_,
          vector<string>  *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
-
     int rv;
     int error;
     fs::info_t info;
@@ -55,7 +52,7 @@ namespace all
           error_and_continue(error,ENOENT);
         if(info.readonly)
           error_and_continue(error,EROFS);
-        if(info.spaceavail < minfreespace_)
+        if(info.spaceavail < branch->minfreespace())
           error_and_continue(error,ENOSPC);
 
         paths_->push_back(branch->path);
@@ -66,17 +63,26 @@ namespace all
 
     return 0;
   }
+
+  static
+  int
+  create(const Branches &branches_,
+         vector<string> *paths_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return all::create(branches_.vec,paths_);
+  }
 }
 
 int
 Policy::Func::all(const Category  type_,
                   const Branches &branches_,
                   const char     *fusepath_,
-                  const uint64_t  minfreespace_,
                   vector<string> *paths_)
 {
   if(type_ == Category::CREATE)
-    return all::create(branches_,minfreespace_,paths_);
+    return all::create(branches_,paths_);
 
-  return Policy::Func::epall(type_,branches_,fusepath_,minfreespace_,paths_);
+  return Policy::Func::epall(type_,branches_,fusepath_,paths_);
 }

src/policy_cache.cpp

@@ -94,7 +94,6 @@ int
 PolicyCache::operator()(Policy::Func::Search &func_,
                         const Branches       &branches_,
                         const char           *fusepath_,
-                        const uint64_t        minfreespace_,
                         std::string          *branch_)
 {
   int rv;
@@ -103,7 +102,7 @@ PolicyCache::operator()(Policy::Func::Search &func_,
   string branch;
 
   if(timeout == 0)
-    return func_(branches_,fusepath_,minfreespace_,branch_);
+    return func_(branches_,fusepath_,branch_);
 
   now = l::get_time();
 
@@ -113,7 +112,7 @@ PolicyCache::operator()(Policy::Func::Search &func_,
   if((now - v->time) >= timeout)
     {
       pthread_mutex_unlock(&_lock);
-      rv = func_(branches_,fusepath_,minfreespace_,&branch);
+      rv = func_(branches_,fusepath_,&branch);
       if(rv == -1)
         return -1;
 

src/policy_cache.hpp

@@ -49,7 +49,6 @@ public:
   int operator()(Policy::Func::Search &func,
                  const Branches       &branches,
                  const char           *fusepath,
-                 const uint64_t        minfreespace,
                  std::string          *branch);
 
 public:

src/policy_epall.cpp

@@ -33,13 +33,10 @@ namespace epall
 {
   static
   int
-  create(const Branches &branches_,
+  create(const BranchVec &branches_,
          const char      *fusepath_,
-         const uint64_t  minfreespace_,
          vector<string>  *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
-
     int rv;
     int error;
     fs::info_t info;
@@ -50,16 +47,16 @@ namespace epall
       {
         branch = &branches_[i];
 
-        if(!fs::exists(branch->path,fusepath_))
-          error_and_continue(error,ENOENT);
         if(branch->ro_or_nc())
           error_and_continue(error,EROFS);
+        if(!fs::exists(branch->path,fusepath_))
+          error_and_continue(error,ENOENT);
         rv = fs::info(branch->path,&info);
         if(rv == -1)
           error_and_continue(error,ENOENT);
         if(info.readonly)
           error_and_continue(error,EROFS);
-        if(info.spaceavail < minfreespace_)
+        if(info.spaceavail < branch->minfreespace())
           error_and_continue(error,ENOSPC);
 
         paths_->push_back(branch->path);
@@ -73,12 +70,21 @@ namespace epall
 
   static
   int
-  action(const Branches &branches_,
+  create(const Branches &branches_,
          const char     *fusepath_,
          vector<string> *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return epall::create(branches_.vec,fusepath_,paths_);
+  }
 
+  static
+  int
+  action(const BranchVec &branches_,
+         const char      *fusepath_,
+         vector<string>  *paths_)
+  {
     int rv;
     int error;
     bool readonly;
@@ -89,10 +95,10 @@ namespace epall
       {
         branch = &branches_[i];
 
-        if(!fs::exists(branch->path,fusepath_))
-          error_and_continue(error,ENOENT);
         if(branch->ro())
           error_and_continue(error,EROFS);
+        if(!fs::exists(branch->path,fusepath_))
+          error_and_continue(error,ENOENT);
         rv = fs::statvfs_cache_readonly(branch->path,&readonly);
         if(rv == -1)
           error_and_continue(error,ENOENT);
@@ -110,12 +116,21 @@ namespace epall
 
   static
   int
-  search(const Branches &branches_,
+  action(const Branches &branches_,
          const char     *fusepath_,
          vector<string> *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
+    rwlock::ReadGuard guard(branches_.lock);
 
+    return epall::action(branches_.vec,fusepath_,paths_);
+  }
+
+  static
+  int
+  search(const BranchVec &branches_,
+         const char      *fusepath_,
+         vector<string>  *paths_)
+  {
     const Branch *branch;
 
     for(size_t i = 0, ei = branches_.size(); i != ei; i++)
@@ -133,19 +148,29 @@ namespace epall
 
     return 0;
   }
+
+  static
+  int
+  search(const Branches &branches_,
+         const char     *fusepath_,
+         vector<string> *paths_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return epall::search(branches_.vec,fusepath_,paths_);
+  }
 }
 
 int
 Policy::Func::epall(const Category  type_,
                     const Branches &branches_,
                     const char     *fusepath_,
-                    const uint64_t  minfreespace_,
                     vector<string> *paths_)
 {
   switch(type_)
     {
     case Category::CREATE:
-      return epall::create(branches_,fusepath_,minfreespace_,paths_);
+      return epall::create(branches_,fusepath_,paths_);
     case Category::ACTION:
       return epall::action(branches_,fusepath_,paths_);
     case Category::SEARCH:

src/policy_epff.cpp

@@ -33,13 +33,10 @@ namespace epff
 {
   static
   int
-  create(const Branches &branches_,
+  create(const BranchVec &branches_,
          const char      *fusepath_,
-         const uint64_t  minfreespace_,
          vector<string>  *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
-
     int rv;
     int error;
     fs::info_t info;
@@ -50,16 +47,16 @@ namespace epff
       {
         branch = &branches_[i];
 
-        if(!fs::exists(branch->path,fusepath_))
-          error_and_continue(error,ENOENT);
         if(branch->ro_or_nc())
           error_and_continue(error,EROFS);
+        if(!fs::exists(branch->path,fusepath_))
+          error_and_continue(error,ENOENT);
         rv = fs::info(branch->path,&info);
         if(rv == -1)
           error_and_continue(error,ENOENT);
         if(info.readonly)
           error_and_continue(error,EROFS);
-        if(info.spaceavail < minfreespace_)
+        if(info.spaceavail < branch->minfreespace())
           error_and_continue(error,ENOSPC);
 
         paths_->push_back(branch->path);
@@ -72,12 +69,21 @@ namespace epff
 
   static
   int
-  action(const Branches &branches_,
+  create(const Branches &branches_,
          const char     *fusepath_,
          vector<string> *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return epff::create(branches_.vec,fusepath_,paths_);
+  }
 
+  static
+  int
+  action(const BranchVec &branches_,
+         const char      *fusepath_,
+         vector<string>  *paths_)
+  {
     int rv;
     int error;
     bool readonly;
@@ -88,10 +94,10 @@ namespace epff
       {
         branch = &branches_[i];
 
-        if(!fs::exists(branch->path,fusepath_))
-          error_and_continue(error,ENOENT);
         if(branch->ro())
           error_and_continue(error,EROFS);
+        if(!fs::exists(branch->path,fusepath_))
+          error_and_continue(error,ENOENT);
         rv = fs::statvfs_cache_readonly(branch->path,&readonly);
         if(rv == -1)
           error_and_continue(error,ENOENT);
@@ -108,12 +114,21 @@ namespace epff
 
   static
   int
-  search(const Branches &branches_,
+  action(const Branches &branches_,
          const char     *fusepath_,
          vector<string> *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
+    rwlock::ReadGuard guard(branches_.lock);
 
+    return epff::action(branches_.vec,fusepath_,paths_);
+  }
+
+  static
+  int
+  search(const BranchVec &branches_,
+         const char      *fusepath_,
+         vector<string>  *paths_)
+  {
     const Branch *branch;
 
     for(size_t i = 0, ei = branches_.size(); i != ei; i++)
@@ -130,19 +145,29 @@ namespace epff
 
     return (errno=ENOENT,-1);
   }
+
+  static
+  int
+  search(const Branches &branches_,
+         const char     *fusepath_,
+         vector<string> *paths_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return epff::search(branches_.vec,fusepath_,paths_);
+  }
 }
 
 int
 Policy::Func::epff(const Category  type_,
                    const Branches &branches_,
                    const char     *fusepath_,
-                   const uint64_t  minfreespace_,
                    vector<string> *paths_)
 {
   switch(type_)
     {
     case Category::CREATE:
-      return epff::create(branches_,fusepath_,minfreespace_,paths_);
+      return epff::create(branches_,fusepath_,paths_);
     case Category::ACTION:
       return epff::action(branches_,fusepath_,paths_);
     case Category::SEARCH:

src/policy_eplfs.cpp

@@ -34,79 +34,85 @@ namespace eplfs
 {
   static
   int
-  create(const Branches &branches_,
+  create(const BranchVec &branches_,
          const char      *fusepath_,
-         const uint64_t  minfreespace_,
          vector<string>  *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
-
     int rv;
     int error;
     uint64_t eplfs;
     fs::info_t info;
     const Branch *branch;
-    const string *eplfsbasepath;
+    const string *basepath;
 
     error = ENOENT;
     eplfs = std::numeric_limits<uint64_t>::max();
-    eplfsbasepath = NULL;
+    basepath = NULL;
     for(size_t i = 0, ei = branches_.size(); i != ei; i++)
       {
         branch = &branches_[i];
 
-        if(!fs::exists(branch->path,fusepath_))
-          error_and_continue(error,ENOENT);
         if(branch->ro_or_nc())
           error_and_continue(error,EROFS);
+        if(!fs::exists(branch->path,fusepath_))
+          error_and_continue(error,ENOENT);
         rv = fs::info(branch->path,&info);
         if(rv == -1)
           error_and_continue(error,ENOENT);
         if(info.readonly)
           error_and_continue(error,EROFS);
-        if(info.spaceavail < minfreespace_)
+        if(info.spaceavail < branch->minfreespace())
           error_and_continue(error,ENOSPC);
         if(info.spaceavail > eplfs)
           continue;
 
         eplfs = info.spaceavail;
-        eplfsbasepath = &branch->path;
+        basepath = &branch->path;
       }
 
-    if(eplfsbasepath == NULL)
+    if(basepath == NULL)
       return (errno=error,-1);
 
-    paths_->push_back(*eplfsbasepath);
+    paths_->push_back(*basepath);
 
     return 0;
   }
 
   static
   int
-  action(const Branches &branches_,
+  create(const Branches &branches_,
          const char     *fusepath_,
          vector<string> *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return eplfs::create(branches_.vec,fusepath_,paths_);
+  }
 
+  static
+  int
+  action(const BranchVec &branches_,
+         const char      *fusepath_,
+         vector<string>  *paths_)
+  {
     int rv;
     int error;
     uint64_t eplfs;
     fs::info_t info;
     const Branch *branch;
-    const string *eplfsbasepath;
+    const string *basepath;
 
     error = ENOENT;
     eplfs = std::numeric_limits<uint64_t>::max();
-    eplfsbasepath = NULL;
+    basepath = NULL;
     for(size_t i = 0, ei = branches_.size(); i != ei; i++)
       {
         branch = &branches_[i];
 
-        if(!fs::exists(branch->path,fusepath_))
-          error_and_continue(error,ENOENT);
         if(branch->ro())
           error_and_continue(error,EROFS);
+        if(!fs::exists(branch->path,fusepath_))
+          error_and_continue(error,ENOENT);
         rv = fs::info(branch->path,&info);
         if(rv == -1)
           error_and_continue(error,ENOENT);
@@ -116,33 +122,42 @@ namespace eplfs
           continue;
 
         eplfs = info.spaceavail;
-        eplfsbasepath = &branch->path;
+        basepath = &branch->path;
       }
 
-    if(eplfsbasepath == NULL)
+    if(basepath == NULL)
       return (errno=error,-1);
 
-    paths_->push_back(*eplfsbasepath);
+    paths_->push_back(*basepath);
 
     return 0;
   }
 
   static
   int
-  search(const Branches        &branches_,
+  action(const Branches &branches_,
          const char     *fusepath_,
          vector<string> *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
+    rwlock::ReadGuard guard(branches_.lock);
 
+    return eplfs::action(branches_.vec,fusepath_,paths_);
+  }
+
+  static
+  int
+  search(const BranchVec &branches_,
+         const char      *fusepath_,
+         vector<string>  *paths_)
+  {
     int rv;
     uint64_t eplfs;
     uint64_t spaceavail;
     const Branch *branch;
-    const string *eplfsbasepath;
+    const string *basepath;
 
     eplfs = std::numeric_limits<uint64_t>::max();
-    eplfsbasepath = NULL;
+    basepath = NULL;
     for(size_t i = 0, ei = branches_.size(); i != ei; i++)
       {
         branch = &branches_[i];
@@ -156,29 +171,39 @@ namespace eplfs
           continue;
 
         eplfs = spaceavail;
-        eplfsbasepath = &branch->path;
+        basepath = &branch->path;
       }
 
-    if(eplfsbasepath == NULL)
+    if(basepath == NULL)
       return (errno=ENOENT,-1);
 
-    paths_->push_back(*eplfsbasepath);
+    paths_->push_back(*basepath);
 
     return 0;
   }
+
+  static
+  int
+  search(const Branches &branches_,
+         const char     *fusepath_,
+         vector<string> *paths_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return eplfs::search(branches_.vec,fusepath_,paths_);
+  }
 }
 
 int
 Policy::Func::eplfs(const Category  type_,
                     const Branches &branches_,
                     const char     *fusepath_,
-                    const uint64_t  minfreespace_,
                     vector<string> *paths_)
 {
   switch(type_)
     {
     case Category::CREATE:
-      return eplfs::create(branches_,fusepath_,minfreespace_,paths_);
+      return eplfs::create(branches_,fusepath_,paths_);
     case Category::ACTION:
       return eplfs::action(branches_,fusepath_,paths_);
     case Category::SEARCH:

src/policy_eplus.cpp

@@ -34,79 +34,85 @@ namespace eplus
 {
   static
   int
-  create(const Branches &branches_,
+  create(const BranchVec &branches_,
          const char      *fusepath_,
-         const uint64_t  minfreespace_,
          vector<string>  *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
-
     int rv;
     int error;
     uint64_t eplus;
     fs::info_t info;
     const Branch *branch;
-    const string *eplusbasepath;
+    const string *basepath;
 
     error = ENOENT;
     eplus = std::numeric_limits<uint64_t>::max();
-    eplusbasepath = NULL;
+    basepath = NULL;
     for(size_t i = 0, ei = branches_.size(); i != ei; i++)
       {
         branch = &branches_[i];
 
-        if(!fs::exists(branch->path,fusepath_))
-          error_and_continue(error,ENOENT);
         if(branch->ro_or_nc())
           error_and_continue(error,EROFS);
+        if(!fs::exists(branch->path,fusepath_))
+          error_and_continue(error,ENOENT);
         rv = fs::info(branch->path,&info);
         if(rv == -1)
           error_and_continue(error,ENOENT);
         if(info.readonly)
           error_and_continue(error,EROFS);
-        if(info.spaceavail < minfreespace_)
+        if(info.spaceavail < branch->minfreespace())
           error_and_continue(error,ENOSPC);
         if(info.spaceused >= eplus)
           continue;
 
         eplus = info.spaceused;
-        eplusbasepath = &branch->path;
+        basepath = &branch->path;
       }
 
-    if(eplusbasepath == NULL)
+    if(basepath == NULL)
       return (errno=error,-1);
 
-    paths_->push_back(*eplusbasepath);
+    paths_->push_back(*basepath);
 
     return 0;
   }
 
   static
   int
-  action(const Branches &branches_,
+  create(const Branches &branches_,
          const char     *fusepath_,
          vector<string> *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return eplus::create(branches_.vec,fusepath_,paths_);
+  }
 
+  static
+  int
+  action(const BranchVec &branches_,
+         const char      *fusepath_,
+         vector<string>  *paths_)
+  {
     int rv;
     int error;
     uint64_t eplus;
     fs::info_t info;
     const Branch *branch;
-    const string *eplusbasepath;
+    const string *basepath;
 
     error = ENOENT;
     eplus = std::numeric_limits<uint64_t>::max();
-    eplusbasepath = NULL;
+    basepath = NULL;
     for(size_t i = 0, ei = branches_.size(); i != ei; i++)
       {
         branch = &branches_[i];
 
-        if(!fs::exists(branch->path,fusepath_))
-          error_and_continue(error,ENOENT);
         if(branch->ro())
           error_and_continue(error,EROFS);
+        if(!fs::exists(branch->path,fusepath_))
+          error_and_continue(error,ENOENT);
         rv = fs::info(branch->path,&info);
         if(rv == -1)
           error_and_continue(error,ENOENT);
@@ -116,33 +122,42 @@ namespace eplus
           continue;
 
         eplus = info.spaceused;
-        eplusbasepath = &branch->path;
+        basepath = &branch->path;
       }
 
-    if(eplusbasepath == NULL)
+    if(basepath == NULL)
       return (errno=error,-1);
 
-    paths_->push_back(*eplusbasepath);
+    paths_->push_back(*basepath);
 
     return 0;
   }
 
   static
   int
-  search(const Branches &branches_,
+  action(const Branches &branches_,
          const char     *fusepath_,
          vector<string> *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
+    rwlock::ReadGuard guard(branches_.lock);
 
+    return eplus::action(branches_.vec,fusepath_,paths_);
+  }
+
+  static
+  int
+  search(const BranchVec &branches_,
+         const char      *fusepath_,
+         vector<string>  *paths_)
+  {
     int rv;
     uint64_t eplus;
     uint64_t spaceused;
     const Branch *branch;
-    const string *eplusbasepath;
+    const string *basepath;
 
     eplus = 0;
-    eplusbasepath = NULL;
+    basepath = NULL;
     for(size_t i = 0, ei = branches_.size(); i != ei; i++)
       {
         branch = &branches_[i];
@@ -156,29 +171,39 @@ namespace eplus
           continue;
 
         eplus = spaceused;
-        eplusbasepath = &branch->path;
+        basepath = &branch->path;
       }
 
-    if(eplusbasepath == NULL)
+    if(basepath == NULL)
       return (errno=ENOENT,-1);
 
-    paths_->push_back(*eplusbasepath);
+    paths_->push_back(*basepath);
 
     return 0;
   }
+
+  static
+  int
+  search(const Branches &branches_,
+         const char     *fusepath_,
+         vector<string> *paths_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return eplus::search(branches_.vec,fusepath_,paths_);
+  }
 }
 
 int
 Policy::Func::eplus(const Category  type_,
                     const Branches &branches_,
                     const char     *fusepath_,
-                    const uint64_t  minfreespace_,
                     vector<string> *paths_)
 {
   switch(type_)
     {
     case Category::CREATE:
-      return eplus::create(branches_,fusepath_,minfreespace_,paths_);
+      return eplus::create(branches_,fusepath_,paths_);
     case Category::ACTION:
       return eplus::action(branches_,fusepath_,paths_);
     case Category::SEARCH:

src/policy_epmfs.cpp

@@ -34,79 +34,85 @@ namespace epmfs
 {
   static
   int
-  create(const Branches &branches_,
+  create(const BranchVec &branches_,
          const char      *fusepath_,
-         const uint64_t  minfreespace_,
          vector<string>  *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
-
     int rv;
     int error;
     uint64_t epmfs;
     fs::info_t info;
     const Branch *branch;
-    const string *epmfsbasepath;
+    const string *basepath;
 
     error = ENOENT;
     epmfs = std::numeric_limits<uint64_t>::min();
-    epmfsbasepath = NULL;
+    basepath = NULL;
     for(size_t i = 0, ei = branches_.size(); i != ei; i++)
       {
         branch = &branches_[i];
 
-        if(!fs::exists(branch->path,fusepath_))
-          error_and_continue(error,ENOENT);
         if(branch->ro_or_nc())
           error_and_continue(error,EROFS);
+        if(!fs::exists(branch->path,fusepath_))
+          error_and_continue(error,ENOENT);
         rv = fs::info(branch->path,&info);
         if(rv == -1)
           error_and_continue(error,ENOENT);
         if(info.readonly)
           error_and_continue(error,EROFS);
-        if(info.spaceavail < minfreespace_)
+        if(info.spaceavail < branch->minfreespace())
           error_and_continue(error,ENOSPC);
         if(info.spaceavail < epmfs)
           continue;
 
         epmfs = info.spaceavail;
-        epmfsbasepath = &branch->path;
+        basepath = &branch->path;
       }
 
-    if(epmfsbasepath == NULL)
+    if(basepath == NULL)
       return (errno=error,-1);
 
-    paths_->push_back(*epmfsbasepath);
+    paths_->push_back(*basepath);
 
     return 0;
   }
 
   static
   int
-  action(const Branches &branches_,
+  create(const Branches &branches_,
          const char     *fusepath_,
          vector<string> *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return epmfs::create(branches_.vec,fusepath_,paths_);
+  }
 
+  static
+  int
+  action(const BranchVec &branches_,
+         const char      *fusepath_,
+         vector<string>  *paths_)
+  {
     int rv;
     int error;
     uint64_t epmfs;
     fs::info_t info;
     const Branch *branch;
-    const string *epmfsbasepath;
+    const string *basepath;
 
     error = ENOENT;
     epmfs = std::numeric_limits<uint64_t>::min();
-    epmfsbasepath = NULL;
+    basepath = NULL;
     for(size_t i = 0, ei = branches_.size(); i != ei; i++)
       {
         branch = &branches_[i];
 
-        if(!fs::exists(branch->path,fusepath_))
-          error_and_continue(error,ENOENT);
         if(branch->ro())
           error_and_continue(error,EROFS);
+        if(!fs::exists(branch->path,fusepath_))
+          error_and_continue(error,ENOENT);
         rv = fs::info(branch->path,&info);
         if(rv == -1)
           error_and_continue(error,ENOENT);
@@ -116,33 +122,42 @@ namespace epmfs
           continue;
 
         epmfs = info.spaceavail;
-        epmfsbasepath = &branch->path;
+        basepath = &branch->path;
       }
 
-    if(epmfsbasepath == NULL)
+    if(basepath == NULL)
       return (errno=error,-1);
 
-    paths_->push_back(*epmfsbasepath);
+    paths_->push_back(*basepath);
 
     return 0;
   }
 
   static
   int
-  search(const Branches &branches_,
+  action(const Branches &branches_,
          const char     *fusepath_,
          vector<string> *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
+    rwlock::ReadGuard guard(branches_.lock);
 
+    return epmfs::action(branches_.vec,fusepath_,paths_);
+  }
+
+  static
+  int
+  search(const BranchVec &branches_,
+         const char      *fusepath_,
+         vector<string>  *paths_)
+  {
     int rv;
     uint64_t epmfs;
     uint64_t spaceavail;
     const Branch *branch;
-    const string *epmfsbasepath;
+    const string *basepath;
 
     epmfs = 0;
-    epmfsbasepath = NULL;
+    basepath = NULL;
     for(size_t i = 0, ei = branches_.size(); i != ei; i++)
       {
         branch = &branches_[i];
@@ -156,29 +171,39 @@ namespace epmfs
           continue;
 
         epmfs = spaceavail;
-        epmfsbasepath = &branch->path;
+        basepath = &branch->path;
       }
 
-    if(epmfsbasepath == NULL)
+    if(basepath == NULL)
       return (errno=ENOENT,-1);
 
-    paths_->push_back(*epmfsbasepath);
+    paths_->push_back(*basepath);
 
     return 0;
   }
+
+  static
+  int
+  search(const Branches &branches_,
+         const char     *fusepath_,
+         vector<string> *paths_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return epmfs::search(branches_.vec,fusepath_,paths_);
+  }
 }
 
 int
 Policy::Func::epmfs(const Category  type_,
                     const Branches &branches_,
                     const char     *fusepath_,
-                    const uint64_t  minfreespace_,
                     vector<string> *paths_)
 {
   switch(type_)
     {
     case Category::CREATE:
-      return epmfs::create(branches_,fusepath_,minfreespace_,paths_);
+      return epmfs::create(branches_,fusepath_,paths_);
     case Category::ACTION:
       return epmfs::action(branches_,fusepath_,paths_);
     case Category::SEARCH:

src/policy_eppfrd.cpp

@@ -42,9 +42,8 @@ namespace eppfrd
 {
   static
   int
-  get_branchinfo_create(const Branches &branches_,
+  get_branchinfo_create(const BranchVec &branches_,
                         const char      *fusepath_,
-                        const uint64_t  minfreespace_,
                         BranchInfoVec   *branchinfo_,
                         uint64_t        *sum_)
   {
@@ -53,7 +52,6 @@ namespace eppfrd
     BranchInfo bi;
     fs::info_t info;
     const Branch *branch;
-    rwlock::ReadGuard guard(&branches_.lock);
 
     *sum_ = 0;
     error = ENOENT;
@@ -70,7 +68,7 @@ namespace eppfrd
           error_and_continue(error,ENOENT);
         if(info.readonly)
           error_and_continue(error,EROFS);
-        if(info.spaceavail < minfreespace_)
+        if(info.spaceavail < branch->minfreespace())
           error_and_continue(error,ENOSPC);
 
         *sum_ += info.spaceavail;
@@ -85,9 +83,22 @@ namespace eppfrd
 
   static
   int
-  get_branchinfo_action(const Branches &branches_,
+  get_branchinfo_create(const Branches &branches_,
+                        const char     *fusepath_,
+                        BranchInfoVec  *branchinfo_,
+                        uint64_t       *sum_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    branchinfo_->reserve(branches_.vec.size());
+
+    return eppfrd::get_branchinfo_create(branches_.vec,fusepath_,branchinfo_,sum_);
+  }
+
+  static
+  int
+  get_branchinfo_action(const BranchVec &branches_,
                         const char      *fusepath_,
-                        const uint64_t  minfreespace_,
                         BranchInfoVec   *branchinfo_,
                         uint64_t        *sum_)
   {
@@ -96,7 +107,6 @@ namespace eppfrd
     BranchInfo bi;
     fs::info_t info;
     const Branch *branch;
-    rwlock::ReadGuard guard(&branches_.lock);
 
     *sum_ = 0;
     error = ENOENT;
@@ -126,9 +136,22 @@ namespace eppfrd
 
   static
   int
-  get_branchinfo_search(const Branches &branches_,
+  get_branchinfo_action(const Branches &branches_,
+                        const char     *fusepath_,
+                        BranchInfoVec  *branchinfo_,
+                        uint64_t       *sum_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    branchinfo_->reserve(branches_.vec.size());
+
+    return eppfrd::get_branchinfo_action(branches_.vec,fusepath_,branchinfo_,sum_);
+  }
+
+  static
+  int
+  get_branchinfo_search(const BranchVec &branches_,
                         const char      *fusepath_,
-                        const uint64_t  minfreespace_,
                         BranchInfoVec   *branchinfo_,
                         uint64_t        *sum_)
   {
@@ -136,7 +159,6 @@ namespace eppfrd
     BranchInfo bi;
     uint64_t spaceavail;
     const Branch *branch;
-    rwlock::ReadGuard guard(&branches_.lock);
 
     *sum_ = 0;
     for(size_t i = 0, ei = branches_.size(); i < ei; i++)
@@ -159,6 +181,20 @@ namespace eppfrd
     return ENOENT;
   }
 
+  static
+  int
+  get_branchinfo_search(const Branches &branches_,
+                        const char     *fusepath_,
+                        BranchInfoVec  *branchinfo_,
+                        uint64_t       *sum_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    branchinfo_->reserve(branches_.vec.size());
+
+    return eppfrd::get_branchinfo_search(branches_.vec,fusepath_,branchinfo_,sum_);
+  }
+
   static
   const
   string*
@@ -187,7 +223,6 @@ namespace eppfrd
   int
   create(const Branches &branches_,
          const char     *fusepath_,
-         const uint64_t  minfreespace_,
          vector<string> *paths_)
   {
     int error;
@@ -195,8 +230,7 @@ namespace eppfrd
     const string *basepath;
     BranchInfoVec branchinfo;
 
-    branchinfo.reserve(branches_.size());
-    error    = eppfrd::get_branchinfo_create(branches_,fusepath_,minfreespace_,&branchinfo,&sum);
+    error    = eppfrd::get_branchinfo_create(branches_,fusepath_,&branchinfo,&sum);
     basepath = eppfrd::get_branch(branchinfo,sum);
     if(basepath == NULL)
       return (errno=error,-1);
@@ -210,7 +244,6 @@ namespace eppfrd
   int
   action(const Branches &branches_,
          const char     *fusepath_,
-         const uint64_t  minfreespace_,
          vector<string> *paths_)
   {
     int error;
@@ -218,8 +251,7 @@ namespace eppfrd
     const string *basepath;
     BranchInfoVec branchinfo;
 
-    branchinfo.reserve(branches_.size());
-    error    = eppfrd::get_branchinfo_action(branches_,fusepath_,minfreespace_,&branchinfo,&sum);
+    error    = eppfrd::get_branchinfo_action(branches_,fusepath_,&branchinfo,&sum);
     basepath = eppfrd::get_branch(branchinfo,sum);
     if(basepath == NULL)
       return (errno=error,-1);
@@ -233,7 +265,6 @@ namespace eppfrd
   int
   search(const Branches &branches_,
          const char     *fusepath_,
-         const uint64_t  minfreespace_,
          vector<string> *paths_)
   {
     int error;
@@ -241,8 +272,7 @@ namespace eppfrd
     const string *basepath;
     BranchInfoVec branchinfo;
 
-    branchinfo.reserve(branches_.size());
-    error    = eppfrd::get_branchinfo_search(branches_,fusepath_,minfreespace_,&branchinfo,&sum);
+    error    = eppfrd::get_branchinfo_search(branches_,fusepath_,&branchinfo,&sum);
     basepath = eppfrd::get_branch(branchinfo,sum);
     if(basepath == NULL)
       return (errno=error,-1);
@@ -257,17 +287,16 @@ int
 Policy::Func::eppfrd(const Category  type_,
                      const Branches &branches_,
                      const char     *fusepath_,
-                     const uint64_t  minfreespace_,
                      vector<string> *paths_)
 {
   switch(type_)
     {
     case Category::CREATE:
-      return eppfrd::create(branches_,fusepath_,minfreespace_,paths_);
+      return eppfrd::create(branches_,fusepath_,paths_);
     case Category::ACTION:
-      return eppfrd::action(branches_,fusepath_,minfreespace_,paths_);
+      return eppfrd::action(branches_,fusepath_,paths_);
     default:
     case Category::SEARCH:
-      return eppfrd::search(branches_,fusepath_,minfreespace_,paths_);
+      return eppfrd::search(branches_,fusepath_,paths_);
     }
 }

src/policy_eprand.cpp

@@ -28,12 +28,11 @@ int
 Policy::Func::eprand(const Category  type_,
                      const Branches &branches_,
                      const char     *fusepath_,
-                     const uint64_t  minfreespace_,
                      vector<string> *paths_)
 {
   int rv;
 
-  rv = Policy::Func::epall(type_,branches_,fusepath_,minfreespace_,paths_);
+  rv = Policy::Func::epall(type_,branches_,fusepath_,paths_);
   if(rv == 0)
     {
       std::random_shuffle(paths_->begin(),paths_->end());

src/policy_erofs.cpp

@@ -27,7 +27,6 @@ int
 Policy::Func::erofs(const Category  type_,
                     const Branches &branches_,
                     const char     *fusepath_,
-                    const uint64_t  minfreespace_,
                     vector<string> *paths)
 {
   return (errno=EROFS,-1);

src/policy_ff.cpp

@@ -32,12 +32,9 @@ namespace ff
 {
   static
   int
-  create(const Branches &branches_,
-         const uint64_t  minfreespace_,
+  create(const BranchVec &branches_,
          vector<string>  *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
-
     int rv;
     int error;
     fs::info_t info;
@@ -55,7 +52,7 @@ namespace ff
           error_and_continue(error,ENOENT);
         if(info.readonly)
           error_and_continue(error,EROFS);
-        if(info.spaceavail < minfreespace_)
+        if(info.spaceavail < branch->minfreespace())
           error_and_continue(error,ENOSPC);
 
         paths_->push_back(branch->path);
@@ -65,17 +62,26 @@ namespace ff
 
     return (errno=error,-1);
   }
+
+  static
+  int
+  create(const Branches &branches_,
+         vector<string> *paths_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return ff::create(branches_.vec,paths_);
+  }
 }
 
 int
 Policy::Func::ff(const Category  type_,
                  const Branches &branches_,
                  const char     *fusepath_,
-                 const uint64_t  minfreespace_,
                  vector<string> *paths_)
 {
   if(type_ == Category::CREATE)
-    return ff::create(branches_,minfreespace_,paths_);
+    return ff::create(branches_,paths_);
 
-  return Policy::Func::epff(type_,branches_,fusepath_,minfreespace_,paths_);
+  return Policy::Func::epff(type_,branches_,fusepath_,paths_);
 }

src/policy_invalid.cpp

@@ -27,7 +27,6 @@ int
 Policy::Func::invalid(const Category  type_,
                       const Branches &branches_,
                       const char     *fusepath_,
-                      const uint64_t  minfreespace_,
                       vector<string> *paths_)
 {
   return (errno=EINVAL,-1);

src/policy_lfs.cpp

@@ -33,22 +33,19 @@ namespace lfs
 {
   static
   int
-  create(const Branches &branches_,
-         const uint64_t  minfreespace_,
+  create(const BranchVec &branches_,
          vector<string>  *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
-
     int rv;
     int error;
     uint64_t lfs;
     fs::info_t info;
     const Branch *branch;
-    const string *lfsbasepath;
+    const string *basepath;
 
     error = ENOENT;
     lfs = std::numeric_limits<uint64_t>::max();
-    lfsbasepath = NULL;
+    basepath = NULL;
     for(size_t i = 0, ei = branches_.size(); i != ei; i++)
       {
         branch = &branches_[i];
@@ -60,33 +57,42 @@ namespace lfs
           error_and_continue(error,ENOENT);
         if(info.readonly)
           error_and_continue(error,EROFS);
-        if(info.spaceavail < minfreespace_)
+        if(info.spaceavail < branch->minfreespace())
           error_and_continue(error,ENOSPC);
         if(info.spaceavail > lfs)
           continue;
 
         lfs = info.spaceavail;
-        lfsbasepath = &branch->path;
+        basepath = &branch->path;
       }
 
-    if(lfsbasepath == NULL)
+    if(basepath == NULL)
       return (errno=error,-1);
 
-    paths_->push_back(*lfsbasepath);
+    paths_->push_back(*basepath);
 
     return 0;
   }
+
+  static
+  int
+  create(const Branches &branches_,
+         vector<string> *paths_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return lfs::create(branches_.vec,paths_);
+  }
 }
 
 int
 Policy::Func::lfs(const Category  type_,
                   const Branches &branches_,
                   const char     *fusepath_,
-                  const uint64_t  minfreespace_,
                   vector<string> *paths_)
 {
   if(type_ == Category::CREATE)
-    return lfs::create(branches_,minfreespace_,paths_);
+    return lfs::create(branches_,paths_);
 
-  return Policy::Func::eplfs(type_,branches_,fusepath_,minfreespace_,paths_);
+  return Policy::Func::eplfs(type_,branches_,fusepath_,paths_);
 }

src/policy_lus.cpp

@@ -33,22 +33,19 @@ namespace lus
 {
   static
   int
-  create(const Branches &branches_,
-         const uint64_t  minfreespace_,
+  create(const BranchVec &branches_,
          vector<string>  *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
-
     int rv;
     int error;
     uint64_t lus;
     fs::info_t info;
     const Branch *branch;
-    const string *lusbasepath;
+    const string *basepath;
 
     error = ENOENT;
     lus = std::numeric_limits<uint64_t>::max();
-    lusbasepath = NULL;
+    basepath = NULL;
     for(size_t i = 0, ei = branches_.size(); i != ei; i++)
       {
         branch = &branches_[i];
@@ -60,33 +57,42 @@ namespace lus
           error_and_continue(error,ENOENT);
         if(info.readonly)
           error_and_continue(error,EROFS);
-        if(info.spaceavail < minfreespace_)
+        if(info.spaceavail < branch->minfreespace())
           error_and_continue(error,ENOSPC);
         if(info.spaceused >= lus)
           continue;
 
         lus      = info.spaceused;
-        lusbasepath = &branch->path;
+        basepath = &branch->path;
       }
 
-    if(lusbasepath == NULL)
+    if(basepath == NULL)
       return (errno=error,-1);
 
-    paths_->push_back(*lusbasepath);
+    paths_->push_back(*basepath);
 
     return 0;
   }
+
+  static
+  int
+  create(const Branches &branches_,
+         vector<string> *paths_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return lus::create(branches_.vec,paths_);
+  }
 }
 
 int
 Policy::Func::lus(const Category  type_,
                   const Branches &branches_,
                   const char     *fusepath_,
-                  const uint64_t  minfreespace_,
                   vector<string> *paths_)
 {
   if(type_ == Category::CREATE)
-    return lus::create(branches_,minfreespace_,paths_);
+    return lus::create(branches_,paths_);
 
-  return Policy::Func::eplus(type_,branches_,fusepath_,minfreespace_,paths_);
+  return Policy::Func::eplus(type_,branches_,fusepath_,paths_);
 }

src/policy_mfs.cpp

@@ -32,22 +32,19 @@ namespace mfs
 {
   static
   int
-  create(const Branches &branches_,
-         const uint64_t  minfreespace_,
+  create(const BranchVec &branches_,
          vector<string>  *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
-
     int rv;
     int error;
     uint64_t mfs;
     fs::info_t info;
     const Branch *branch;
-    const string *mfsbasepath;
+    const string *basepath;
 
     error = ENOENT;
     mfs = 0;
-    mfsbasepath = NULL;
+    basepath = NULL;
     for(size_t i = 0, ei = branches_.size(); i != ei; i++)
       {
         branch = &branches_[i];
@@ -59,33 +56,42 @@ namespace mfs
           error_and_continue(error,ENOENT);
         if(info.readonly)
           error_and_continue(error,EROFS);
-        if(info.spaceavail < minfreespace_)
+        if(info.spaceavail < branch->minfreespace())
           error_and_continue(error,ENOSPC);
         if(info.spaceavail < mfs)
           continue;
 
         mfs = info.spaceavail;
-        mfsbasepath = &branch->path;
+        basepath = &branch->path;
       }
 
-    if(mfsbasepath == NULL)
+    if(basepath == NULL)
       return (errno=error,-1);
 
-    paths_->push_back(*mfsbasepath);
+    paths_->push_back(*basepath);
 
     return 0;
   }
+
+  static
+  int
+  create(const Branches &branches_,
+         vector<string> *paths_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return mfs::create(branches_.vec,paths_);
+  }
 }
 
 int
 Policy::Func::mfs(const Category  type_,
                   const Branches &branches_,
                   const char     *fusepath_,
-                  const uint64_t  minfreespace_,
                   vector<string> *paths_)
 {
   if(type_ == Category::CREATE)
-    return mfs::create(branches_,minfreespace_,paths_);
+    return mfs::create(branches_,paths_);
 
-  return Policy::Func::epmfs(type_,branches_,fusepath_,minfreespace_,paths_);
+  return Policy::Func::epmfs(type_,branches_,fusepath_,paths_);
 }

src/policy_msplfs.cpp

@@ -36,9 +36,8 @@ namespace msplfs
   static
   const
   string*
-  create_1(const Branches &branches_,
+  create_1(const BranchVec &branches_,
            const string    &fusepath_,
-           const uint64_t  minfreespace_,
            int             *err_)
   {
     int rv;
@@ -54,16 +53,16 @@ namespace msplfs
       {
         branch = &branches_[i];
 
-        if(!fs::exists(branch->path,fusepath))
-          error_and_continue(*err_,ENOENT);
         if(branch->ro_or_nc())
           error_and_continue(*err_,EROFS);
+        if(!fs::exists(branch->path,fusepath))
+          error_and_continue(*err_,ENOENT);
         rv = fs::info(branch->path,&info);
         if(rv == -1)
           error_and_continue(*err_,ENOENT);
         if(info.readonly)
           error_and_continue(*err_,EROFS);
-        if(info.spaceavail < minfreespace_)
+        if(info.spaceavail < branch->minfreespace())
           error_and_continue(*err_,ENOSPC);
         if(info.spaceavail > lfs)
           continue;
@@ -77,21 +76,19 @@ namespace msplfs
 
   static
   int
-  create(const Branches &branches_,
+  create(const BranchVec &branches_,
          const char      *fusepath_,
-         const uint64_t  minfreespace_,
          vector<string>  *paths_)
   {
     int error;
     string fusepath;
     const string *basepath;
-    rwlock::ReadGuard guard(&branches_.lock);
 
     error = ENOENT;
     fusepath = fusepath_;
     do
       {
-        basepath = create_1(branches_,fusepath,minfreespace_,&error);
+        basepath = msplfs::create_1(branches_,fusepath,&error);
         if(basepath)
           break;
 
@@ -106,17 +103,27 @@ namespace msplfs
 
     return 0;
   }
+
+  static
+  int
+  create(const Branches &branches_,
+         const char     *fusepath_,
+         vector<string> *paths_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return msplfs::create(branches_.vec,fusepath_,paths_);
+  }
 }
 
 int
 Policy::Func::msplfs(const Category  type_,
                      const Branches &branches_,
                      const char     *fusepath_,
-                     const uint64_t  minfreespace_,
                      vector<string> *paths_)
 {
   if(type_ == Category::CREATE)
-    return msplfs::create(branches_,fusepath_,minfreespace_,paths_);
+    return msplfs::create(branches_,fusepath_,paths_);
 
-  return Policy::Func::eplfs(type_,branches_,fusepath_,minfreespace_,paths_);
+  return Policy::Func::eplfs(type_,branches_,fusepath_,paths_);
 }

src/policy_msplus.cpp

@@ -36,9 +36,8 @@ namespace msplus
   static
   const
   string*
-  create_1(const Branches &branches_,
+  create_1(const BranchVec &branches_,
            const string    &fusepath_,
-           const uint64_t  minfreespace_,
            int             *err_)
   {
     int rv;
@@ -54,16 +53,16 @@ namespace msplus
       {
         branch = &branches_[i];
 
-        if(!fs::exists(branch->path,fusepath))
-          error_and_continue(*err_,ENOENT);
         if(branch->ro_or_nc())
           error_and_continue(*err_,EROFS);
+        if(!fs::exists(branch->path,fusepath))
+          error_and_continue(*err_,ENOENT);
         rv = fs::info(branch->path,&info);
         if(rv == -1)
           error_and_continue(*err_,ENOENT);
         if(info.readonly)
           error_and_continue(*err_,EROFS);
-        if(info.spaceavail < minfreespace_)
+        if(info.spaceavail < branch->minfreespace())
           error_and_continue(*err_,ENOSPC);
         if(info.spaceused >= lus)
           continue;
@@ -77,21 +76,19 @@ namespace msplus
 
   static
   int
-  create(const Branches &branches_,
+  create(const BranchVec &branches_,
          const char      *fusepath_,
-         const uint64_t  minfreespace_,
          vector<string>  *paths_)
   {
     int error;
     string fusepath;
     const string *basepath;
-    rwlock::ReadGuard guard(&branches_.lock);
 
     error = ENOENT;
     fusepath = fusepath_;
     do
       {
-        basepath = create_1(branches_,fusepath,minfreespace_,&error);
+        basepath = msplus::create_1(branches_,fusepath,&error);
         if(basepath)
           break;
 
@@ -106,17 +103,27 @@ namespace msplus
 
     return 0;
   }
+
+  static
+  int
+  create(const Branches &branches_,
+         const char     *fusepath_,
+         vector<string> *paths_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return msplus::create(branches_.vec,fusepath_,paths_);
+  }
 }
 
 int
 Policy::Func::msplus(const Category  type_,
                      const Branches &branches_,
                      const char     *fusepath_,
-                     const uint64_t  minfreespace_,
                      vector<string> *paths_)
 {
   if(type_ == Category::CREATE)
-    return msplus::create(branches_,fusepath_,minfreespace_,paths_);
+    return msplus::create(branches_,fusepath_,paths_);
 
-  return Policy::Func::eplus(type_,branches_,fusepath_,minfreespace_,paths_);
+  return Policy::Func::eplus(type_,branches_,fusepath_,paths_);
 }

src/policy_mspmfs.cpp

@@ -36,9 +36,8 @@ namespace mspmfs
   static
   const
   string*
-  create_1(const Branches &branches_,
+  create_1(const BranchVec &branches_,
            const string    &fusepath_,
-           const uint64_t  minfreespace_,
            int             *err_)
   {
     int rv;
@@ -54,16 +53,16 @@ namespace mspmfs
       {
         branch = &branches_[i];
 
-        if(!fs::exists(branch->path,fusepath))
-          error_and_continue(*err_,ENOENT);
         if(branch->ro_or_nc())
           error_and_continue(*err_,EROFS);
+        if(!fs::exists(branch->path,fusepath))
+          error_and_continue(*err_,ENOENT);
         rv = fs::info(branch->path,&info);
         if(rv == -1)
           error_and_continue(*err_,ENOENT);
         if(info.readonly)
           error_and_continue(*err_,EROFS);
-        if(info.spaceavail < minfreespace_)
+        if(info.spaceavail < branch->minfreespace())
           error_and_continue(*err_,ENOSPC);
         if(info.spaceavail < mfs)
           continue;
@@ -77,21 +76,19 @@ namespace mspmfs
 
   static
   int
-  create(const Branches &branches_,
+  create(const BranchVec &branches_,
          const char      *fusepath_,
-         const uint64_t  minfreespace_,
          vector<string>  *paths_)
   {
     int error;
     string fusepath;
     const string *basepath;
-    rwlock::ReadGuard guard(&branches_.lock);
 
     error = ENOENT;
     fusepath = fusepath_;
     do
       {
-        basepath = create_1(branches_,fusepath,minfreespace_,&error);
+        basepath = mspmfs::create_1(branches_,fusepath,&error);
         if(basepath)
           break;
 
@@ -106,17 +103,27 @@ namespace mspmfs
 
     return 0;
   }
+
+  static
+  int
+  create(const Branches &branches_,
+         const char     *fusepath_,
+         vector<string> *paths_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return mspmfs::create(branches_.vec,fusepath_,paths_);
+  }
 }
 
 int
 Policy::Func::mspmfs(const Category  type_,
                      const Branches &branches_,
                      const char     *fusepath_,
-                     const uint64_t  minfreespace_,
                      vector<string> *paths_)
 {
   if(type_ == Category::CREATE)
-    return mspmfs::create(branches_,fusepath_,minfreespace_,paths_);
+    return mspmfs::create(branches_,fusepath_,paths_);
 
-  return Policy::Func::epmfs(type_,branches_,fusepath_,minfreespace_,paths_);
+  return Policy::Func::epmfs(type_,branches_,fusepath_,paths_);
 }

src/policy_msppfrd.cpp

@@ -44,9 +44,8 @@ namespace msppfrd
 {
   static
   int
-  create_1(const Branches &branches_,
+  create_1(const BranchVec &branches_,
            const string    &fusepath_,
-           const uint64_t  minfreespace_,
            BranchInfoVec   *branchinfo_,
            uint64_t        *sum_)
   {
@@ -55,7 +54,6 @@ namespace msppfrd
     BranchInfo bi;
     fs::info_t info;
     const Branch *branch;
-    rwlock::ReadGuard guard(&branches_.lock);
 
     *sum_ = 0;
     error = ENOENT;
@@ -72,7 +70,7 @@ namespace msppfrd
           error_and_continue(error,ENOENT);
         if(info.readonly)
           error_and_continue(error,EROFS);
-        if(info.spaceavail < minfreespace_)
+        if(info.spaceavail < branch->minfreespace())
           error_and_continue(error,ENOSPC);
 
         *sum_ += info.spaceavail;
@@ -85,11 +83,24 @@ namespace msppfrd
     return error;
   }
 
+  static
+  int
+  create_1(const Branches &branches_,
+           const string   &fusepath_,
+           BranchInfoVec  *branchinfo_,
+           uint64_t       *sum_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    branchinfo_->reserve(branches_.vec.size());
+
+    return msppfrd::create_1(branches_.vec,fusepath_,branchinfo_,sum_);
+  }
+
   static
   int
   get_branchinfo(const Branches &branches_,
                  const char     *fusepath_,
-                 const uint64_t  minfreespace_,
                  BranchInfoVec  *branchinfo_,
                  uint64_t       *sum_)
   {
@@ -99,7 +110,7 @@ namespace msppfrd
     fusepath = fusepath_;
     do
       {
-        error = msppfrd::create_1(branches_,fusepath,minfreespace_,branchinfo_,sum_);
+        error = msppfrd::create_1(branches_,fusepath,branchinfo_,sum_);
         if(branchinfo_->size())
           return error;
 
@@ -138,7 +149,6 @@ namespace msppfrd
   int
   create(const Branches &branches_,
          const char     *fusepath_,
-         const uint64_t  minfreespace_,
          vector<string> *paths_)
   {
     int error;
@@ -146,8 +156,7 @@ namespace msppfrd
     const string *basepath;
     BranchInfoVec branchinfo;
 
-    branchinfo.reserve(branches_.size());
-    error    = msppfrd::get_branchinfo(branches_,fusepath_,minfreespace_,&branchinfo,&sum);
+    error    = msppfrd::get_branchinfo(branches_,fusepath_,&branchinfo,&sum);
     basepath = msppfrd::get_branch(branchinfo,sum);
     if(basepath == NULL)
       return (errno=error,-1);
@@ -162,11 +171,10 @@ int
 Policy::Func::msppfrd(const Category  type_,
                       const Branches &branches_,
                       const char     *fusepath_,
-                      const uint64_t  minfreespace_,
                       vector<string> *paths_)
 {
   if(type_ == Category::CREATE)
-    return msppfrd::create(branches_,fusepath_,minfreespace_,paths_);
+    return msppfrd::create(branches_,fusepath_,paths_);
 
-  return Policy::Func::eppfrd(type_,branches_,fusepath_,minfreespace_,paths_);
+  return Policy::Func::eppfrd(type_,branches_,fusepath_,paths_);
 }

src/policy_newest.cpp

@@ -36,32 +36,29 @@ namespace newest
 {
   static
   int
-  create(const Branches &branches_,
+  create(const BranchVec &branches_,
          const char      *fusepath_,
-         const uint64_t  minfreespace_,
          vector<string>  *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
-
     int rv;
     int error;
     time_t newest;
     struct stat st;
     fs::info_t info;
     const Branch *branch;
-    const string *newestbasepath;
+    const string *basepath;
 
     error = ENOENT;
     newest = std::numeric_limits<time_t>::min();
-    newestbasepath = NULL;
+    basepath = NULL;
     for(size_t i = 0, ei = branches_.size(); i != ei; i++)
       {
         branch = &branches_[i];
 
-        if(!fs::exists(branch->path,fusepath_,&st))
-          error_and_continue(error,ENOENT);
         if(branch->ro_or_nc())
           error_and_continue(error,EROFS);
+        if(!fs::exists(branch->path,fusepath_,&st))
+          error_and_continue(error,ENOENT);
         if(st.st_mtime < newest)
           continue;
         rv = fs::info(branch->path,&info);
@@ -69,48 +66,57 @@ namespace newest
           error_and_continue(error,ENOENT);
         if(info.readonly)
           error_and_continue(error,EROFS);
-        if(info.spaceavail < minfreespace_)
+        if(info.spaceavail < branch->minfreespace())
           error_and_continue(error,ENOSPC);
 
         newest = st.st_mtime;
-        newestbasepath = &branch->path;
+        basepath = &branch->path;
       }
 
-    if(newestbasepath == NULL)
+    if(basepath == NULL)
       return (errno=error,-1);
 
-    paths_->push_back(*newestbasepath);
+    paths_->push_back(*basepath);
 
     return 0;
   }
 
   static
   int
-  action(const Branches &branches_,
+  create(const Branches &branches_,
          const char     *fusepath_,
          vector<string> *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return newest::create(branches_.vec,fusepath_,paths_);
+  }
 
+  static
+  int
+  action(const BranchVec &branches_,
+         const char      *fusepath_,
+         vector<string>  *paths_)
+  {
     int rv;
     int error;
     bool readonly;
     time_t newest;
     struct stat st;
     const Branch *branch;
-    const string *newestbasepath;
+    const string *basepath;
 
     error = ENOENT;
     newest = std::numeric_limits<time_t>::min();
-    newestbasepath = NULL;
+    basepath = NULL;
     for(size_t i = 0, ei = branches_.size(); i != ei; i++)
       {
         branch = &branches_[i];
 
-        if(!fs::exists(branch->path,fusepath_,&st))
-          error_and_continue(error,ENOENT);
         if(branch->ro())
           error_and_continue(error,EROFS);
+        if(!fs::exists(branch->path,fusepath_,&st))
+          error_and_continue(error,ENOENT);
         if(st.st_mtime < newest)
           continue;
         rv = fs::statvfs_cache_readonly(branch->path,&readonly);
@@ -120,32 +126,41 @@ namespace newest
           error_and_continue(error,EROFS);
 
         newest = st.st_mtime;
-        newestbasepath = &branch->path;
+        basepath = &branch->path;
       }
 
-    if(newestbasepath == NULL)
+    if(basepath == NULL)
       return (errno=error,-1);
 
-    paths_->push_back(*newestbasepath);
+    paths_->push_back(*basepath);
 
     return 0;
   }
 
   static
   int
-  search(const Branches &branches_,
+  action(const Branches &branches_,
          const char     *fusepath_,
          vector<string> *paths_)
   {
-    rwlock::ReadGuard guard(&branches_.lock);
+    rwlock::ReadGuard guard(branches_.lock);
 
+    return newest::action(branches_.vec,fusepath_,paths_);
+  }
+
+  static
+  int
+  search(const BranchVec &branches_,
+         const char      *fusepath_,
+         vector<string>  *paths_)
+  {
     time_t newest;
     struct stat st;
     const Branch *branch;
-    const string *newestbasepath;
+    const string *basepath;
 
     newest = std::numeric_limits<time_t>::min();
-    newestbasepath = NULL;
+    basepath = NULL;
     for(size_t i = 0, ei = branches_.size(); i != ei; i++)
       {
         branch = &branches_[i];
@@ -156,29 +171,39 @@ namespace newest
           continue;
 
         newest = st.st_mtime;
-        newestbasepath = &branch->path;
+        basepath = &branch->path;
       }
 
-    if(newestbasepath == NULL)
+    if(basepath == NULL)
       return (errno=ENOENT,-1);
 
-    paths_->push_back(*newestbasepath);
+    paths_->push_back(*basepath);
 
     return 0;
   }
+
+  static
+  int
+  search(const Branches &branches_,
+         const char     *fusepath_,
+         vector<string> *paths_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    return newest::search(branches_.vec,fusepath_,paths_);
+  }
 }
 
 int
 Policy::Func::newest(const Category  type_,
                      const Branches &branches_,
                      const char     *fusepath_,
-                     const uint64_t  minfreespace_,
                      vector<string> *paths_)
 {
   switch(type_)
     {
     case Category::CREATE:
-      return newest::create(branches_,fusepath_,minfreespace_,paths_);
+      return newest::create(branches_,fusepath_,paths_);
     case Category::ACTION:
       return newest::action(branches_,fusepath_,paths_);
     case Category::SEARCH:

src/policy_pfrd.cpp

@@ -40,8 +40,7 @@ namespace pfrd
 {
   static
   int
-  get_branchinfo(const Branches &branches_,
-                 const uint64_t  minfreespace_,
+  get_branchinfo(const BranchVec &branches_,
                  BranchInfoVec   *branchinfo_,
                  uint64_t        *sum_)
   {
@@ -50,7 +49,6 @@ namespace pfrd
     BranchInfo bi;
     fs::info_t info;
     const Branch *branch;
-    rwlock::ReadGuard guard(&branches_.lock);
 
     *sum_ = 0;
     error = ENOENT;
@@ -65,7 +63,7 @@ namespace pfrd
           error_and_continue(error,ENOENT);
         if(info.readonly)
           error_and_continue(error,EROFS);
-        if(info.spaceavail < minfreespace_)
+        if(info.spaceavail < branch->minfreespace())
           error_and_continue(error,ENOSPC);
 
         *sum_ += info.spaceavail;
@@ -78,6 +76,19 @@ namespace pfrd
     return error;
   }
 
+  static
+  int
+  get_branchinfo(const Branches &branches_,
+                 BranchInfoVec  *branchinfo_,
+                 uint64_t       *sum_)
+  {
+    rwlock::ReadGuard guard(branches_.lock);
+
+    branchinfo_->reserve(branches_.vec.size());
+
+    return pfrd::get_branchinfo(branches_.vec,branchinfo_,sum_);
+  }
+
   static
   const
   string*
@@ -106,7 +117,6 @@ namespace pfrd
   int
   create(const Branches &branches_,
          const char     *fusepath_,
-         const uint64_t  minfreespace_,
          vector<string> *paths_)
   {
     int error;
@@ -114,8 +124,7 @@ namespace pfrd
     const string *basepath;
     BranchInfoVec branchinfo;
 
-    branchinfo.reserve(branches_.size());
-    error    = pfrd::get_branchinfo(branches_,minfreespace_,&branchinfo,&sum);
+    error    = pfrd::get_branchinfo(branches_,&branchinfo,&sum);
     basepath = pfrd::get_branch(branchinfo,sum);
     if(basepath == NULL)
       return (errno=error,-1);
@@ -130,11 +139,10 @@ int
 Policy::Func::pfrd(const Category  type_,
                    const Branches &branches_,
                    const char     *fusepath_,
-                   const uint64_t  minfreespace_,
                    vector<string> *paths_)
 {
   if(type_ == Category::CREATE)
-    return pfrd::create(branches_,fusepath_,minfreespace_,paths_);
+    return pfrd::create(branches_,fusepath_,paths_);
 
-  return Policy::Func::eppfrd(type_,branches_,fusepath_,minfreespace_,paths_);
+  return Policy::Func::eppfrd(type_,branches_,fusepath_,paths_);
 }

src/policy_rand.cpp

@@ -28,12 +28,11 @@ int
 Policy::Func::rand(const Category  type_,
                    const Branches &branches_,
                    const char     *fusepath_,
-                   const uint64_t  minfreespace_,
                    vector<string> *paths_)
 {
   int rv;
 
-  rv = Policy::Func::all(type_,branches_,fusepath_,minfreespace_,paths_);
+  rv = Policy::Func::all(type_,branches_,fusepath_,paths_);
   if(rv == 0)
     {
       std::random_shuffle(paths_->begin(),paths_->end());

src/rwlock.hpp

@@ -23,42 +23,42 @@ namespace rwlock
   class ReadGuard
   {
   public:
-    ReadGuard(pthread_rwlock_t *lock_)
+    ReadGuard(pthread_rwlock_t &lock_)
       : _lock(lock_)
     {
-      pthread_rwlock_rdlock(_lock);
+      pthread_rwlock_rdlock(&_lock);
     }
 
     ~ReadGuard()
     {
-      pthread_rwlock_unlock(_lock);
+      pthread_rwlock_unlock(&_lock);
     }
 
   private:
     ReadGuard();
 
   private:
-    pthread_rwlock_t *_lock;
+    pthread_rwlock_t &_lock;
   };
 
   class WriteGuard
   {
   public:
-    WriteGuard(pthread_rwlock_t *lock_)
+    WriteGuard(pthread_rwlock_t &lock_)
       : _lock(lock_)
     {
-      pthread_rwlock_wrlock(_lock);
+      pthread_rwlock_wrlock(&_lock);
     }
 
     ~WriteGuard()
     {
-      pthread_rwlock_unlock(_lock);
+      pthread_rwlock_unlock(&_lock);
     }
 
   private:
     WriteGuard();
 
   private:
-    pthread_rwlock_t *_lock;
+    pthread_rwlock_t &_lock;
   };
 }

src/str.cpp

@@ -46,6 +46,25 @@ namespace str
     return str::split(str_.c_str(),delimiter_,result_);
   }
 
+  void
+  rsplit1(const string   &str_,
+          const char      delimiter_,
+          vector<string> *result_)
+  {
+    std::size_t off;
+
+    off = str_.rfind('=');
+    if(off == std::string::npos)
+      {
+        result_->push_back(str_);
+      }
+    else
+      {
+        result_->push_back(str_.substr(0,off));
+        result_->push_back(str_.substr(off+1));
+      }
+  }
+
   void
   splitkv(const string &str_,
           const char    delimiter_,

src/str.hpp

@@ -30,6 +30,11 @@ namespace str
         const char                delimiter,
         std::vector<std::string> *result);
 
+  void
+  rsplit1(const std::string        &str,
+          const char                delimiter,
+          std::vector<std::string> *result);
+
   void
   splitkv(const std::string &str,
           const char         delimiter,