Merge pull request #517 from trapexit/cleanup

policy return cleanup

src/create.cpp

@@ -84,19 +84,17 @@ _create(Policy::Func::Search  searchFunc,
   int rv;
   string fullpath;
   string fusedirpath;
-  const char *fusedirpathcstr;
   vector<const string*> createpaths;
   vector<const string*> existingpaths;
 
   fusedirpath = fusepath;
   fs::path::dirname(fusedirpath);
-  fusedirpathcstr = fusedirpath.c_str();
 
-  rv = searchFunc(srcmounts,fusedirpathcstr,minfreespace,existingpaths);
+  rv = searchFunc(srcmounts,fusedirpath,minfreespace,existingpaths);
   if(rv == -1)
     return -errno;
 
-  rv = createFunc(srcmounts,fusedirpathcstr,minfreespace,createpaths);
+  rv = createFunc(srcmounts,fusedirpath,minfreespace,createpaths);
   if(rv == -1)
     return -errno;
 

src/fs_base_setxattr.hpp

@@ -18,29 +18,47 @@
 
 #pragma once
 
-#include <sys/types.h>
-
 #include "errno.hpp"
 #include "xattr.hpp"
 
+#include <sys/types.h>
+
+#include <string>
+
 namespace fs
 {
   static
   inline
   int
-  lsetxattr(const std::string &path,
-            const char        *name,
-            const void        *value,
-            const size_t       size,
-            const int          flags)
+  lsetxattr(const char   *path_,
+            const char   *name_,
+            const void   *value_,
+            const size_t  size_,
+            const int     flags_)
   {
 #ifdef USE_XATTR
-    return ::lsetxattr(path.c_str(),name,value,size,flags);
+    return ::lsetxattr(path_,name_,value_,size_,flags_);
 #else
     return (errno=ENOTSUP,-1);
 #endif
   }
 
+  static
+  inline
+  int
+  lsetxattr(const std::string &path_,
+            const std::string &name_,
+            const void        *value_,
+            const size_t       size_,
+            const int          flags_)
+  {
+    return fs::lsetxattr(path_.c_str(),
+                         name_.c_str(),
+                         value_,
+                         size_,
+                         flags_);
+  }
+
   static
   inline
   int

src/fs_xattr.cpp

@@ -295,8 +295,8 @@ namespace fs
         const string &value,
         const int     flags)
     {
-      return fs::lsetxattr(path.c_str(),
-                           key.c_str(),
+      return fs::lsetxattr(path,
+                           key,
                            value.data(),
                            value.size(),
                            flags);

src/link.cpp

@@ -99,7 +99,8 @@ _link_create_path(Policy::Func::Search  searchFunc,
 
   newfusedirpath = newfusepath;
   fs::path::dirname(newfusedirpath);
-  rv = searchFunc(srcmounts,newfusedirpath.c_str(),minfreespace,newbasepaths);
+
+  rv = searchFunc(srcmounts,newfusedirpath,minfreespace,newbasepaths);
   if(rv == -1)
     return -errno;
 
@@ -120,25 +121,23 @@ _clonepath_if_would_create(Policy::Func::Search  searchFunc,
 {
   int rv;
   string newfusedirpath;
-  const char *newfusedirpathcstr;
   vector<const string*> newbasepath;
 
   newfusedirpath = newfusepath;
   fs::path::dirname(newfusedirpath);
-  newfusedirpathcstr = newfusedirpath.c_str();
 
-  rv = createFunc(srcmounts,newfusedirpathcstr,minfreespace,newbasepath);
+  rv = createFunc(srcmounts,newfusedirpath,minfreespace,newbasepath);
   if(rv == -1)
     return -1;
 
   if(oldbasepath != *newbasepath[0])
     return (errno=EXDEV,-1);
 
-  rv = searchFunc(srcmounts,newfusedirpathcstr,minfreespace,newbasepath);
+  rv = searchFunc(srcmounts,newfusedirpath,minfreespace,newbasepath);
   if(rv == -1)
     return -1;
 
-  return fs::clonepath_as_root(*newbasepath[0],oldbasepath,newfusedirpathcstr);
+  return fs::clonepath_as_root(*newbasepath[0],oldbasepath,newfusedirpath);
 }
 
 static

src/mkdir.cpp

@@ -68,7 +68,7 @@ int
 _mkdir_loop(const string                &existingpath,
             const vector<const string*> &createpaths,
             const char                  *fusepath,
-            const char                  *fusedirpath,
+            const string                &fusedirpath,
             const mode_t                 mode,
             const mode_t                 umask)
 {
@@ -102,24 +102,22 @@ _mkdir(Policy::Func::Search  searchFunc,
 {
   int rv;
   string fusedirpath;
-  const char *fusedirpathcstr;
   vector<const string*> createpaths;
   vector<const string*> existingpaths;
 
   fusedirpath = fusepath;
   fs::path::dirname(fusedirpath);
-  fusedirpathcstr = fusedirpath.c_str();
 
-  rv = searchFunc(srcmounts,fusedirpathcstr,minfreespace,existingpaths);
+  rv = searchFunc(srcmounts,fusedirpath,minfreespace,existingpaths);
   if(rv == -1)
     return -errno;
 
-  rv = createFunc(srcmounts,fusedirpathcstr,minfreespace,createpaths);
+  rv = createFunc(srcmounts,fusedirpath,minfreespace,createpaths);
   if(rv == -1)
     return -errno;
 
   return _mkdir_loop(*existingpaths[0],createpaths,
-                     fusepath,fusedirpathcstr,mode,umask);
+                     fusepath,fusedirpath,mode,umask);
 }
 
 namespace mergerfs

src/mknod.cpp

@@ -71,7 +71,7 @@ int
 _mknod_loop(const string                &existingpath,
             const vector<const string*> &createpaths,
             const char                  *fusepath,
-            const char                  *fusedirpath,
+            const string                &fusedirpath,
             const mode_t                 mode,
             const mode_t                 umask,
             const dev_t                  dev)
@@ -107,24 +107,22 @@ _mknod(Policy::Func::Search  searchFunc,
 {
   int rv;
   string fusedirpath;
-  const char *fusedirpathcstr;
   vector<const string*> createpaths;
   vector<const string*> existingpaths;
 
   fusedirpath = fusepath;
   fs::path::dirname(fusedirpath);
-  fusedirpathcstr = fusedirpath.c_str();
 
-  rv = searchFunc(srcmounts,fusedirpathcstr,minfreespace,existingpaths);
+  rv = searchFunc(srcmounts,fusedirpath,minfreespace,existingpaths);
   if(rv == -1)
     return -errno;
 
-  rv = createFunc(srcmounts,fusedirpathcstr,minfreespace,createpaths);
+  rv = createFunc(srcmounts,fusedirpath,minfreespace,createpaths);
   if(rv == -1)
     return -errno;
 
   return _mknod_loop(*existingpaths[0],createpaths,
-                     fusepath,fusedirpathcstr,
+                     fusepath,fusedirpath,
                      mode,umask,dev);
 }
 

src/policy.hpp

@@ -16,19 +16,12 @@
 
 #pragma once
 
-#include <string>
-#include <vector>
-#include <map>
-
-#include "fs.hpp"
 #include "category.hpp"
+#include "fs.hpp"
 
-#define POLICY_SUCCESS 0
-#define POLICY_FAIL -1
-#define POLICY_SUCCEEDED(RV) ((RV) == POLICY_SUCCESS)
-#define POLICY_FAILED(RV) ((RV) == POLICY_FAIL)
-#define POLICY_FAIL_ERRNO(ERRNO) (errno=ERRNO,POLICY_FAIL)
-#define POLICY_FAIL_ENOENT POLICY_FAIL_ERRNO(ENOENT)
+#include <map>
+#include <string>
+#include <vector>
 
 namespace mergerfs
 {
@@ -88,6 +81,12 @@ namespace mergerfs
           return func(T,b,c,d,e);
         }
 
+        int
+        operator()(cstrvec &b,const string &c,cuint64_t d,cstrptrvec &e)
+        {
+          return func(T,b,c.c_str(),d,e);
+        }
+
       private:
         const Ptr func;
       };

src/policy_all.cpp

@@ -49,9 +49,9 @@ _all_create(const vector<string>  &basepaths,
     }
 
   if(paths.empty())
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 static
@@ -75,9 +75,9 @@ _all_other(const vector<string>  &basepaths,
     }
 
   if(paths.empty())
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 namespace mergerfs

src/policy_epall.cpp

@@ -56,9 +56,9 @@ _epall_create(const vector<string>  &basepaths,
     }
 
   if(paths.empty())
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 static
@@ -82,9 +82,9 @@ _epall_other(const vector<string>  &basepaths,
     }
 
   if(paths.empty())
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 namespace mergerfs

src/policy_epff.cpp

@@ -59,15 +59,15 @@ _epff_create(const vector<string>  &basepaths,
 
       paths.push_back(basepath);
 
-      return POLICY_SUCCESS;
+      return 0;
     }
 
   if(fallback == NULL)
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
   paths.push_back(fallback);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 static
@@ -89,10 +89,10 @@ _epff_other(const vector<string>  &basepaths,
 
       paths.push_back(basepath);
 
-      return POLICY_SUCCESS;
+      return 0;
     }
 
-  return POLICY_FAIL_ENOENT;
+  return (errno=ENOENT,-1);
 }
 
 static
@@ -122,7 +122,7 @@ namespace mergerfs
     int rv;
 
     rv = _epff(type,basepaths,fusepath,minfreespace,paths);
-    if(POLICY_FAILED(rv))
+    if(rv == -1)
       rv = Policy::Func::ff(type,basepaths,fusepath,minfreespace,paths);
 
     return rv;

src/policy_eplfs.cpp

@@ -65,11 +65,11 @@ _eplfs_create(const vector<string>  &basepaths,
     }
 
   if(eplfsbasepath == NULL)
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
   paths.push_back(eplfsbasepath);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 static
@@ -103,11 +103,11 @@ _eplfs_other(const vector<string>  &basepaths,
     }
 
   if(eplfsbasepath == NULL)
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
   paths.push_back(eplfsbasepath);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 static
@@ -136,7 +136,7 @@ namespace mergerfs
     int rv;
 
     rv = _eplfs(type,basepaths,fusepath,minfreespace,paths);
-    if(POLICY_FAILED(rv))
+    if(rv == -1)
       rv = Policy::Func::lfs(type,basepaths,fusepath,minfreespace,paths);
 
     return rv;

src/policy_eplus.cpp

@@ -65,11 +65,11 @@ _eplus_create(const vector<string>  &basepaths,
     }
 
   if(eplusbasepath == NULL)
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
   paths.push_back(eplusbasepath);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 static
@@ -103,11 +103,11 @@ _eplus_other(const vector<string>  &basepaths,
     }
 
   if(eplusbasepath == NULL)
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
   paths.push_back(eplusbasepath);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 static
@@ -136,7 +136,7 @@ namespace mergerfs
     int rv;
 
     rv = _eplus(type,basepaths,fusepath,minfreespace,paths);
-    if(POLICY_FAILED(rv))
+    if(rv == -1)
       rv = Policy::Func::lus(type,basepaths,fusepath,minfreespace,paths);
 
     return rv;

src/policy_epmfs.cpp

@@ -65,11 +65,11 @@ _epmfs_create(const vector<string>  &basepaths,
     }
 
   if(epmfsbasepath == NULL)
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
   paths.push_back(epmfsbasepath);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 static
@@ -103,11 +103,11 @@ _epmfs_other(const vector<string>  &basepaths,
     }
 
   if(epmfsbasepath == NULL)
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
   paths.push_back(epmfsbasepath);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 static
@@ -136,7 +136,7 @@ namespace mergerfs
     int rv;
 
     rv = _epmfs(type,basepaths,fusepath,minfreespace,paths);
-    if(POLICY_FAILED(rv))
+    if(rv == -1)
       rv = Policy::Func::mfs(type,basepaths,fusepath,minfreespace,paths);
 
     return rv;

src/policy_eprand.cpp

@@ -37,7 +37,7 @@ namespace mergerfs
     int rv;
 
     rv = Policy::Func::epall(type,basepaths,fusepath,minfreespace,paths);
-    if(POLICY_SUCCEEDED(rv))
+    if(rv == 0)
       std::random_shuffle(paths.begin(),paths.end());
 
     return rv;

src/policy_erofs.cpp

@@ -32,6 +32,6 @@ namespace mergerfs
                       const uint64_t              minfreespace,
                       vector<const string*>      &paths)
   {
-    return POLICY_FAIL_ERRNO(EROFS);
+    return (errno=EROFS,-1);
   }
 }

src/policy_ff.cpp

@@ -52,15 +52,15 @@ _ff_create(const vector<string>  &basepaths,
 
       paths.push_back(basepath);
 
-      return POLICY_SUCCESS;
+      return 0;
     }
 
   if(fallback == NULL)
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
   paths.push_back(fallback);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 static
@@ -82,10 +82,10 @@ _ff_other(const vector<string>  &basepaths,
 
       paths.push_back(basepath);
 
-      return POLICY_SUCCESS;
+      return 0;
     }
 
-  return POLICY_FAIL_ENOENT;
+  return (errno=ENOENT,-1);
 }
 
 namespace mergerfs

src/policy_invalid.cpp

@@ -32,6 +32,6 @@ namespace mergerfs
                         const uint64_t              minfreespace,
                         vector<const string*>      &paths)
   {
-    return POLICY_FAIL_ERRNO(EINVAL);
+    return (errno=EINVAL,-1);
   }
 }

src/policy_lfs.cpp

@@ -60,11 +60,11 @@ _lfs_create(const vector<string>  &basepaths,
     }
 
   if(lfsbasepath == NULL)
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
   paths.push_back(lfsbasepath);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 static
@@ -98,11 +98,11 @@ _lfs_other(const vector<string>  &basepaths,
     }
 
   if(lfsbasepath == NULL)
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
   paths.push_back(lfsbasepath);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 static
@@ -132,7 +132,7 @@ namespace mergerfs
     int rv;
 
     rv = _lfs(type,basepaths,fusepath,minfreespace,paths);
-    if(POLICY_FAILED(rv))
+    if(rv == -1)
       rv = Policy::Func::mfs(type,basepaths,fusepath,minfreespace,paths);
 
     return rv;

src/policy_lus.cpp

@@ -60,11 +60,11 @@ _lus_create(const vector<string>  &basepaths,
     }
 
   if(lusbasepath == NULL)
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
   paths.push_back(lusbasepath);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 static
@@ -98,11 +98,11 @@ _lus_other(const vector<string>  &basepaths,
     }
 
   if(lusbasepath == NULL)
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
   paths.push_back(lusbasepath);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 static
@@ -131,7 +131,7 @@ namespace mergerfs
     int rv;
 
     rv = _lus(type,basepaths,fusepath,minfreespace,paths);
-    if(POLICY_FAILED(rv))
+    if(rv == -1)
       rv = Policy::Func::mfs(type,basepaths,fusepath,minfreespace,paths);
 
     return rv;

src/policy_mfs.cpp

@@ -56,11 +56,11 @@ _mfs_create(const vector<string>  &basepaths,
     }
 
   if(mfsbasepath == NULL)
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
   paths.push_back(mfsbasepath);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 static
@@ -94,11 +94,11 @@ _mfs_other(const vector<string>  &basepaths,
     }
 
   if(mfsbasepath == NULL)
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
   paths.push_back(mfsbasepath);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 static
@@ -126,7 +126,7 @@ namespace mergerfs
     int rv;
 
     rv = _mfs(type,basepaths,fusepath,paths);
-    if(POLICY_FAILED(rv))
+    if(rv == -1)
       rv = Policy::Func::ff(type,basepaths,fusepath,minfreespace,paths);
 
     return rv;

src/policy_newest.cpp

@@ -61,11 +61,11 @@ _newest_create(const vector<string>  &basepaths,
     }
 
   if(newestbasepath == NULL)
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
   paths.push_back(newestbasepath);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 static
@@ -97,11 +97,11 @@ _newest_other(const vector<string>  &basepaths,
     }
 
   if(newestbasepath == NULL)
-    return POLICY_FAIL_ENOENT;
+    return (errno=ENOENT,-1);
 
   paths.push_back(newestbasepath);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 namespace mergerfs

src/policy_rand.cpp

@@ -37,7 +37,7 @@ namespace mergerfs
     int rv;
 
     rv = Policy::Func::all(type,basepaths,fusepath,minfreespace,paths);
-    if(POLICY_SUCCEEDED(rv))
+    if(rv == 0)
       std::random_shuffle(paths.begin(),paths.end());
 
     return rv;

src/rename.cpp

@@ -112,13 +112,13 @@ _rename_create_path(Policy::Func::Search  searchFunc,
   vector<const string*> oldbasepaths;
 
   rv = actionFunc(srcmounts,oldfusepath,minfreespace,oldbasepaths);
-  if(POLICY_FAILED(rv))
+  if(rv == -1)
     return -errno;
 
   string newfusedirpath = newfusepath;
   fs::path::dirname(newfusedirpath);
-  rv = searchFunc(srcmounts,newfusedirpath.c_str(),minfreespace,newbasepath);
-  if(POLICY_FAILED(rv))
+  rv = searchFunc(srcmounts,newfusedirpath,minfreespace,newbasepath);
+  if(rv == -1)
     return -errno;
 
   error = -1;
@@ -151,13 +151,13 @@ _clonepath(Policy::Func::Search  searchFunc,
   int rv;
   vector<const string*> srcbasepath;
 
-  rv = searchFunc(srcmounts,fusedirpath.c_str(),minfreespace,srcbasepath);
-  if(POLICY_FAILED(rv))
+  rv = searchFunc(srcmounts,fusedirpath,minfreespace,srcbasepath);
+  if(rv == -1)
     return -errno;
 
   fs::clonepath_as_root(*srcbasepath[0],dstbasepath,fusedirpath);
 
-  return POLICY_SUCCESS;
+  return 0;
 }
 
 static
@@ -176,14 +176,14 @@ _clonepath_if_would_create(Policy::Func::Search  searchFunc,
 
   newfusedirpath = newfusepath;
   fs::path::dirname(newfusedirpath);
-  rv = createFunc(srcmounts,newfusedirpath.c_str(),minfreespace,newbasepath);
-  if(POLICY_FAILED(rv))
+  rv = createFunc(srcmounts,newfusedirpath,minfreespace,newbasepath);
+  if(rv == -1)
     return rv;
 
   if(oldbasepath == *newbasepath[0])
     return _clonepath(searchFunc,srcmounts,minfreespace,oldbasepath,newfusedirpath);
 
-  return POLICY_FAIL_ERRNO(EXDEV);
+  return (errno=EXDEV,-1);
 }
 
 static
@@ -218,7 +218,7 @@ _rename_preserve_path_core(Policy::Func::Search         searchFunc,
           rv = _clonepath_if_would_create(searchFunc,createFunc,
                                           srcmounts,minfreespace,
                                           oldbasepath,oldfusepath,newfusepath);
-          if(POLICY_SUCCEEDED(rv))
+          if(rv == 0)
             rv = fs::rename(oldfullpath,newfullpath);
         }
 
@@ -248,7 +248,7 @@ _rename_preserve_path(Policy::Func::Search  searchFunc,
   vector<const string*> oldbasepaths;
 
   rv = actionFunc(srcmounts,oldfusepath,minfreespace,oldbasepaths);
-  if(POLICY_FAILED(rv))
+  if(rv == -1)
     return -errno;
 
   error = -1;

src/symlink.cpp

@@ -57,7 +57,7 @@ _symlink_loop(const string                &existingpath,
               const vector<const string*>  newbasepaths,
               const char                  *oldpath,
               const char                  *newpath,
-              const char                  *newdirpath)
+              const string                &newdirpath)
 {
   int rv;
   int error;
@@ -89,24 +89,22 @@ _symlink(Policy::Func::Search  searchFunc,
 {
   int rv;
   string newdirpath;
-  const char *newdirpathcstr;
   vector<const string*> newbasepaths;
   vector<const string*> existingpaths;
 
   newdirpath = newpath;
   fs::path::dirname(newdirpath);
-  newdirpathcstr = newdirpath.c_str();
 
-  rv = searchFunc(srcmounts,newdirpathcstr,minfreespace,existingpaths);
+  rv = searchFunc(srcmounts,newdirpath,minfreespace,existingpaths);
   if(rv == -1)
     return -errno;
 
-  rv = createFunc(srcmounts,newdirpathcstr,minfreespace,newbasepaths);
+  rv = createFunc(srcmounts,newdirpath,minfreespace,newbasepaths);
   if(rv == -1)
     return -errno;
 
   return _symlink_loop(*existingpaths[0],newbasepaths,
-                       oldpath,newpath,newdirpathcstr);
+                       oldpath,newpath,newdirpath);
 }
 
 namespace mergerfs