Merge pull request #45 from trapexit/remove_all

Remove 'all' policy and simplify logic

README.md

@@ -47,7 +47,7 @@ In /etc/fstab it'd look like the following:
 
 # POLICIES
 
-Filesystem calls are broken up into 4 functional categories: search, action, create, and none. These categories can be assigned a policy which dictates how [mergerfs](http://github.com/trapexit/mergerfs) behaves while when action on the filesystem. Any policy can be assigned to a category though some aren't terribly practical. For instance: rand (Random) may be useful for **create** but could lead to very odd behavior if used for **search** or **action**. Since the input for any policy is the source mounts and fusepath and the output a vector of targets the choice was made to simplify the implementation and allow a policies usage in any category. **NOTE:** In any policy which can return more than one location (currently only **all**) the first value will be used in **search** and **create** policies since they can only ever act on 1 filepath.
+Filesystem calls are broken up into 3 categories: search, action, and create. There are also some calls which have no policy attached due to state being kept between calls. These categories can be assigned a policy which dictates how [mergerfs](http://github.com/trapexit/mergerfs) behaves. Any policy can be assigned to a category though some aren't terribly practical. For instance: rand (Random) may be useful for **create** but could lead to very odd behavior if used for **search** or **action**.
 
 #### Functional classifications ####
 | Class | FUSE calls |
@@ -60,13 +60,12 @@ Filesystem calls are broken up into 4 functional categories: search, action, cre
 #### Policy descriptions ####
 | Policy | Description |
 |--------------|-------------|
-| ff (first found) | Given the order the paths were provided at mount time act on the first one found (regardless if stat would return EACCES). |
-| ffwp (first found w/ permissions) | Given the order the paths were provided at mount time act on the first one found which you have access (stat does not error with EACCES). |
+| ff (first found) | Given the order of the paths act on the first one found (regardless if stat would return EACCES). |
+| ffwp (first found w/ permissions) | Given the order of the paths act on the first one found which you have access (stat does not error with EACCES). |
 | newest (newest file) | If multiple files exist return the one with the most recent mtime. |
-| all (all files found) | Attempt to apply the call to each file found. If any sub call succeeds the entire operation succeeds and other errors ignored. If all fail then the last error is reported. |
 | mfs (most free space) | Assuming the path is found to exist (ENOENT would not be returned) use the drive with the most free space available. |
 | epmfs (existing path, most free space) | If the path exists in multiple locations use the one with the most free space. Otherwise fall back to mfs. |
-| rand (random) | Pick a destination at random. Again the dirname of the full path must exist somewhere. |
+| rand (random) | Pick an existing destination at random. |
 
 #### statvfs ####
 

src/access.cpp

@@ -51,13 +51,13 @@ _access(const fs::SearchFunc  searchFunc,
         const int             mask)
 {
   int rv;
-  fs::PathVector path;
+  fs::Path path;
 
   rv = searchFunc(srcmounts,fusepath,path);
   if(rv == -1)
     return -errno;
 
-  rv = ::eaccess(path[0].full.c_str(),mask);
+  rv = ::eaccess(path.full.c_str(),mask);
 
   return ((rv == -1) ? -errno : 0);
 }

src/chmod.cpp

@@ -45,24 +45,15 @@ _chmod(const fs::SearchFunc  searchFunc,
        const mode_t          mode)
 {
   int rv;
-  int error;
-  fs::PathVector paths;
+  fs::Path path;
 
-  rv = searchFunc(srcmounts,fusepath,paths);
+  rv = searchFunc(srcmounts,fusepath,path);
   if(rv == -1)
     return -errno;
 
-  rv    = -1;
-  error =  0;
-  for(fs::PathVector::const_iterator
-        i = paths.begin(), ei = paths.end(); i != ei; ++i)
-    {
-      rv &= ::chmod(i->full.c_str(),mode);
-      if(rv == -1)
-        error = errno;
-    }
+  rv = ::chmod(path.full.c_str(),mode);
 
-  return ((rv == -1) ? -error : 0);
+  return ((rv == -1) ? -errno : 0);
 }
 
 namespace mergerfs

src/chown.cpp

@@ -47,24 +47,15 @@ _chown(const fs::SearchFunc  searchFunc,
        const gid_t           gid)
 {
   int rv;
-  int error;
-  fs::PathVector paths;
+  fs::Path path;
 
-  rv = searchFunc(srcmounts,fusepath,paths);
+  rv = searchFunc(srcmounts,fusepath,path);
   if(rv == -1)
     return -errno;
 
-  rv    = -1;
-  error =  0;
-  for(fs::PathVector::const_iterator
-        i = paths.begin(), ei = paths.end(); i != ei; ++i)
-    {
-      rv &= ::lchown(i->full.c_str(),uid,gid);
-      if(rv == -1)
-        error = errno;
-    }
+  rv = ::lchown(path.full.c_str(),uid,gid);
 
-  return ((rv == -1) ? -error : 0);
+  return ((rv == -1) ? -errno : 0);
 }
 
 namespace mergerfs

src/create.cpp

@@ -57,8 +57,8 @@ _create(const fs::SearchFunc  searchFunc,
   int rv;
   string path;
   string dirname;
-  fs::PathVector createpath;
-  fs::PathVector existingpath;
+  fs::Path createpath;
+  fs::Path existingpath;
 
   dirname = fs::dirname(fusepath);
   rv = searchFunc(srcmounts,dirname,existingpath);
@@ -69,13 +69,13 @@ _create(const fs::SearchFunc  searchFunc,
   if(rv == -1)
     return -errno;
 
-  if(createpath[0].base != existingpath[0].base)
+  if(createpath.base != existingpath.base)
     {
       const mergerfs::ugid::SetResetGuard ugid(0,0);
-      fs::clonepath(existingpath[0].base,createpath[0].base,dirname);
+      fs::clonepath(existingpath.base,createpath.base,dirname);
     }
 
-  path = fs::make_path(createpath[0].base,fusepath);
+  path = fs::make_path(createpath.base,fusepath);
 
   fd = ::open(path.c_str(),flags,mode);
   if(fd == -1)

src/fs.cpp

@@ -500,7 +500,7 @@ namespace fs
     int
     invalid(const vector<string> &basepaths,
             const string         &fusepath,
-            PathVector           &paths)
+            Path                 &rv)
     {
       return (errno = EINVAL,-1);
     }
@@ -508,7 +508,7 @@ namespace fs
     int
     ff(const vector<string> &basepaths,
        const string         &fusepath,
-       PathVector           &paths)
+       Path                 &path)
     {
       errno = ENOENT;
       for(vector<string>::const_iterator
@@ -517,13 +517,18 @@ namespace fs
           ++iter)
         {
           int         rv;
-          string      path;
           struct stat st;
+          string      fullpath;
 
-          path = fs::make_path(*iter,fusepath);
-          rv = ::lstat(path.c_str(),&st);
+          fullpath = fs::make_path(*iter,fusepath);
+
+          rv = ::lstat(fullpath.c_str(),&st);
           if(rv == 0)
-            return (paths.push_back(Path(*iter,path)),0);
+            {
+              path.base = *iter;
+              path.full = fullpath;
+              return 0;
+            }
         }
 
       return -1;
@@ -532,7 +537,7 @@ namespace fs
     int
     ffwp(const vector<string> &basepaths,
          const string         &fusepath,
-         PathVector           &paths)
+         Path                 &path)
     {
       Path fallback;
 
@@ -543,24 +548,27 @@ namespace fs
           ++iter)
         {
           int         rv;
-          string      path;
           struct stat st;
+          string      fullpath;
 
-          path = fs::make_path(*iter,fusepath);
-          rv = ::lstat(path.c_str(),&st);
+          fullpath = fs::make_path(*iter,fusepath);
+
+          rv = ::lstat(fullpath.c_str(),&st);
           if(rv == 0)
             {
-              return (paths.push_back(Path(*iter,path)),0);
+              path.base = *iter;
+              path.full = fullpath;
+              return 0;
             }
           else if(errno == EACCES)
             {
               fallback.base = *iter;
-              fallback.full = path;
+              fallback.full = fullpath;
             }
         }
 
       if(!fallback.base.empty())
-        return (paths.push_back(fallback),0);
+        return (path = fallback,0);
 
       return -1;
     }
@@ -568,7 +576,7 @@ namespace fs
     int
     newest(const vector<string> &basepaths,
            const string         &fusepath,
-           PathVector           &paths)
+           Path                 &path)
     {
       time_t newest;
       string npath;
@@ -583,68 +591,46 @@ namespace fs
         {
           int         rv;
           struct stat st;
-          const string path = fs::make_path(*iter,fusepath);
+          string      fullpath;
 
-          rv  = ::lstat(path.c_str(),&st);
+          fullpath = fs::make_path(*iter,fusepath);
+
+          rv  = ::lstat(fullpath.c_str(),&st);
           if(rv == 0 && st.st_mtime > newest)
             {
               newest = st.st_mtime;
               niter  = iter;
-              npath  = path;
+              npath  = fullpath;
             }
         }
 
       if(newest)
-        return (paths.push_back(Path(*niter,npath)),0);
-
-      return -1;
-    }
-
-    int
-    all(const vector<string> &basepaths,
-        const string         &fusepath,
-        PathVector           &paths)
         {
-      errno = ENOENT;
-      for(vector<string>::const_iterator
-            iter = basepaths.begin(), eiter = basepaths.end();
-          iter != eiter;
-          ++iter)
-        {
-          int         rv;
-          string      path;
-          struct stat st;
-
-          path = fs::make_path(*iter,fusepath);
-          rv   = ::lstat(path.c_str(),&st);
-          if(rv == 0)
-            paths.push_back(Path(*iter,path));
+          path.base = *niter;
+          path.full = npath;
+          return 0;
         }
 
-      return paths.empty() ? -1 : 0;
+      return -1;
     }
 
     int
     mfs(const vector<string> &basepaths,
         const string         &fusepath,
-        PathVector           &paths)
+        Path                 &path)
     {
       fsblkcnt_t mfs;
-      string mfspath;
-      string fullmfspath;
+      size_t     mfsidx;
 
       mfs = 0;
-      errno = ENOENT;
-      for(vector<string>::const_iterator
-            iter = basepaths.begin(), eiter = basepaths.end();
-          iter != eiter;
-          ++iter)
+      for(size_t i = 0, size = basepaths.size();
+          i != size;
+          i++)
         {
           int rv;
           struct statvfs fsstats;
-          const string   &mountpoint = *iter;
 
-          rv = ::statvfs(mountpoint.c_str(),&fsstats);
+          rv = ::statvfs(basepaths[i].c_str(),&fsstats);
           if(rv == 0)
             {
               fsblkcnt_t  spaceavail;
@@ -653,17 +639,16 @@ namespace fs
               if(spaceavail > mfs)
                 {
                   mfs    = spaceavail;
-                  mfspath = mountpoint;
+                  mfsidx = i;
                 }
             }
         }
 
       if(mfs == 0)
-        return -1;
+        return (errno=ENOENT,-1);
 
-      fullmfspath = fs::make_path(mfspath,fusepath);
-
-      paths.push_back(Path(mfspath,fullmfspath));
+      path.base = basepaths[mfsidx];
+      path.full = fs::make_path(path.base,fusepath);
 
       return 0;
     }
@@ -671,11 +656,11 @@ namespace fs
     int
     epmfs(const vector<string> &basepaths,
           const string         &fusepath,
-          PathVector           &paths)
+          Path                 &path)
     {
       fsblkcnt_t existingmfs = 0;
       fsblkcnt_t generalmfs  = 0;
-      string     path;
+      string     fullpath;
       string     generalmfspath;
       string     existingmfspath;
       vector<string>::const_iterator iter  = basepaths.begin();
@@ -703,8 +688,8 @@ namespace fs
                   generalmfspath = mountpoint;
                 }
 
-              path = fs::make_path(mountpoint,fusepath);
-              rv   = ::lstat(path.c_str(),&st);
+              fullpath = fs::make_path(mountpoint,fusepath);
+              rv = ::lstat(fullpath.c_str(),&st);
               if(rv == 0)
                 {
                   if(spaceavail > existingmfs)
@@ -722,7 +707,8 @@ namespace fs
       if(existingmfspath.empty())
         existingmfspath = generalmfspath;
 
-      paths.push_back(Path(existingmfspath,path));
+      path.base = existingmfspath;
+      path.full = fullpath;
 
       return 0;
     }
@@ -730,19 +716,13 @@ namespace fs
     int
     rand(const vector<string> &basepaths,
          const string         &fusepath,
-         PathVector           &paths)
+         Path                 &path)
     {
-      string randombasepath;
-      string randomfullpath;
-
-      randombasepath = *random_element(basepaths.begin(),
+      path.base = *random_element(basepaths.begin(),
                                   basepaths.end());
-
-      randomfullpath = fs::make_path(randombasepath,
+      path.full = fs::make_path(path.base,
                                 fusepath);
 
-      paths.push_back(Path(randombasepath,randomfullpath));
-
       return 0;
     }
   }

src/fs.hpp

@@ -48,8 +48,7 @@ namespace fs
     string full;
   };
 
-  typedef vector<Path> PathVector;
-  typedef int (*SearchFunc)(const vector<string>&,const string&,PathVector&);
+  typedef int (*SearchFunc)(const vector<string>&,const string&,Path&);
 
   string dirname(const string &path);
   string basename(const string &path);
@@ -114,28 +113,25 @@ namespace fs
   {
     int invalid(const vector<string> &basepaths,
                 const string         &fusepath,
-                PathVector           &paths);
+                Path                 &path);
     int ff(const vector<string>      &basepaths,
            const string              &fusepath,
-           PathVector                &paths);
+           Path                      &path);
     int ffwp(const vector<string>    &paths,
              const string            &fusepath,
-             PathVector              &rv);
+             Path                    &path);
     int newest(const vector<string>  &paths,
                const string          &fusepath,
-               PathVector            &rv);
-    int all(const vector<string>     &paths,
-            const string             &fusepath,
-            PathVector               &rv);
+               Path                  &path);
     int mfs(const vector<string>     &paths,
             const string             &fusepath,
-            PathVector               &rv);
+            Path                     &path);
     int epmfs(const vector<string>   &paths,
               const string           &fusepath,
-              PathVector             &rv);
+              Path                   &path);
     int rand(const vector<string>    &paths,
              const string            &fusepath,
-             PathVector              &rv);
+             Path                    &path);
   }
 };
 

src/getattr.cpp

@@ -71,13 +71,13 @@ _getattr(const fs::SearchFunc  searchFunc,
          struct stat          &buf)
 {
   int rv;
-  fs::PathVector paths;
+  fs::Path path;
 
-  rv = searchFunc(srcmounts,fusepath,paths);
+  rv = searchFunc(srcmounts,fusepath,path);
   if(rv == -1)
     return -errno;
 
-  rv = ::lstat(paths[0].full.c_str(),&buf);
+  rv = ::lstat(path.full.c_str(),&buf);
 
   return ((rv == -1) ? -errno : 0);
 }

src/getxattr.cpp

@@ -107,18 +107,18 @@ _getxattr(const fs::SearchFunc  searchFunc,
 {
 #ifndef WITHOUT_XATTR
   int rv;
-  fs::PathVector paths;
+  fs::Path path;
 
-  rv = searchFunc(srcmounts,fusepath,paths);
+  rv = searchFunc(srcmounts,fusepath,path);
   if(rv == -1)
     return -errno;
 
   if(!strcmp(attrname,"user.mergerfs.basepath"))
-    rv = ::_getxattr_from_string(buf,count,paths[0].base);
+    rv = ::_getxattr_from_string(buf,count,path.base);
   else if(!strcmp(attrname,"user.mergerfs.fullpath"))
-    rv = ::_getxattr_from_string(buf,count,paths[0].full);
+    rv = ::_getxattr_from_string(buf,count,path.full);
   else
-    rv = ::lgetxattr(paths[0].full.c_str(),attrname,buf,count);
+    rv = ::lgetxattr(path.full.c_str(),attrname,buf,count);
 
   return ((rv == -1) ? -errno : rv);
 #else

src/ioctl.cpp

@@ -93,13 +93,13 @@ _ioctl_dir_base(const fs::SearchFunc  searchFunc,
 {
   int fd;
   int rv;
-  fs::PathVector paths;
+  fs::Path path;
 
-  rv = searchFunc(srcmounts,fusepath,paths);
+  rv = searchFunc(srcmounts,fusepath,path);
   if(rv == -1)
     return -errno;
 
-  fd = ::open(paths[0].full.c_str(),flags);
+  fd = ::open(path.full.c_str(),flags);
   if(fd == -1)
     return -errno;
 

src/link.cpp

@@ -47,47 +47,35 @@ _link(const fs::SearchFunc  searchFunc,
       const string         &to)
 {
   int rv;
-  int error;
-  fs::PathVector paths;
+  fs::Path path;
 
-  rv = searchFunc(srcmounts,from,paths);
+  rv = searchFunc(srcmounts,from,path);
   if(rv == -1)
     return -errno;
 
-  rv    = -1;
-  error =  0;
-  for(fs::PathVector::const_iterator
-        i = paths.begin(), ei = paths.end(); i != ei; ++i)
-    {
-      int lrv;
-      const string pathfrom = fs::make_path(i->base,from);
-      const string pathto   = fs::make_path(i->base,to);
+  const string pathfrom = fs::make_path(path.base,from);
+  const string pathto   = fs::make_path(path.base,to);
 
-      lrv = ::link(pathfrom.c_str(),pathto.c_str());
-      if(lrv == -1 && errno == ENOENT)
+  rv = ::link(pathfrom.c_str(),pathto.c_str());
+  if(rv == -1 && errno == ENOENT)
     {
       string todir;
-          fs::PathVector topaths;
+      fs::Path foundpath;
 
       todir = fs::dirname(to);
-          fs::find::ffwp(srcmounts,todir,topaths);
-          if(topaths.size() > 0)
-            {
+      rv = fs::find::ffwp(srcmounts,todir,foundpath);
+      if(rv == -1)
+        return -errno;
+
       {
         const mergerfs::ugid::SetResetGuard ugid(0,0);
-                fs::clonepath(topaths[0].base,i->base,todir);
+        fs::clonepath(foundpath.base,path.base,todir);
       }
 
-              lrv = ::link(pathfrom.c_str(),pathto.c_str());
-            }
-        }
-
-      rv &= lrv;
-      if(rv == -1)
-        error = errno;
+      rv = ::link(pathfrom.c_str(),pathto.c_str());
     }
 
-  return ((rv == -1) ? -error : 0);
+  return ((rv == -1) ? -errno : 0);
 }
 
 namespace mergerfs

src/listxattr.cpp

@@ -75,13 +75,13 @@ _listxattr(const fs::SearchFunc  searchFunc,
 {
 #ifndef WITHOUT_XATTR
   int rv;
-  fs::PathVector paths;
+  fs::Path path;
 
-  rv = searchFunc(srcmounts,fusepath,paths);
+  rv = searchFunc(srcmounts,fusepath,path);
   if(rv == -1)
     return -errno;
 
-  rv = ::llistxattr(paths[0].full.c_str(),list,size);
+  rv = ::llistxattr(path.full.c_str(),list,size);
 
   return ((rv == -1) ? -errno : rv);
 #else

src/mkdir.cpp

@@ -51,8 +51,8 @@ _mkdir(const fs::SearchFunc  searchFunc,
   int rv;
   string path;
   string dirname;
-  fs::PathVector createpath;
-  fs::PathVector existingpath;
+  fs::Path createpath;
+  fs::Path existingpath;
 
   if(fs::path_exists(srcmounts,fusepath))
     return -EEXIST;
@@ -63,13 +63,16 @@ _mkdir(const fs::SearchFunc  searchFunc,
     return -errno;
 
   rv = createPathFunc(srcmounts,dirname,createpath);
-  if(createpath[0].base != existingpath[0].base)
+  if(rv == -1)
+    return -errno;
+
+  if(createpath.base != existingpath.base)
     {
       const mergerfs::ugid::SetResetGuard ugid(0,0);
-      fs::clonepath(existingpath[0].base,createpath[0].base,dirname);
+      fs::clonepath(existingpath.base,createpath.base,dirname);
     }
 
-  path = fs::make_path(createpath[0].base,fusepath);
+  path = fs::make_path(createpath.base,fusepath);
 
   rv = ::mkdir(path.c_str(),mode);
 

src/mknod.cpp

@@ -53,8 +53,8 @@ _mknod(const fs::SearchFunc  searchFunc,
   int rv;
   string path;
   string dirname;
-  fs::PathVector createpath;
-  fs::PathVector existingpath;
+  fs::Path createpath;
+  fs::Path existingpath;
 
   if(fs::path_exists(srcmounts,fusepath))
     return -EEXIST;
@@ -64,14 +64,17 @@ _mknod(const fs::SearchFunc  searchFunc,
   if(rv == -1)
     return -errno;
 
-  createPathFunc(srcmounts,dirname,createpath);
-  if(existingpath[0].base != createpath[0].base)
+  rv = createPathFunc(srcmounts,dirname,createpath);
+  if(rv == -1)
+    return -errno;
+
+  if(existingpath.base != createpath.base)
     {
       const mergerfs::ugid::SetResetGuard ugid(0,0);
-      fs::clonepath(existingpath[0].base,createpath[0].base,dirname);
+      fs::clonepath(existingpath.base,createpath.base,dirname);
     }
 
-  path = fs::make_path(createpath[0].base,fusepath);
+  path = fs::make_path(createpath.base,fusepath);
 
   rv = ::mknod(path.c_str(),mode,dev);
 

src/open.cpp

@@ -51,17 +51,17 @@ _open(const fs::SearchFunc  searchFunc,
 {
   int fd;
   int rv;
-  fs::PathVector paths;
+  fs::Path path;
 
-  rv = searchFunc(srcmounts,fusepath,paths);
+  rv = searchFunc(srcmounts,fusepath,path);
   if(rv == -1)
     return -errno;
 
-  fd = ::open(paths[0].full.c_str(),flags);
+  fd = ::open(path.full.c_str(),flags);
   if(fd == -1)
     return -errno;
 
-  fh = (uint64_t)new FileInfo(fd,flags,paths[0].full);
+  fh = (uint64_t)new FileInfo(fd,flags,path.full);
 
   return 0;
 }

src/policy.cpp

@@ -35,7 +35,6 @@ namespace mergerfs
   const std::vector<Policy> Policy::_policies_ =
     buildvector<Policy,true>
     (POLICY(invalid))
-    (POLICY(all))
     (POLICY(epmfs))
     (POLICY(ff))
     (POLICY(ffwp))
@@ -46,7 +45,6 @@ namespace mergerfs
   const Policy * const Policy::policies = &_policies_[1];
 
   const Policy &Policy::invalid = Policy::policies[Policy::Enum::invalid];
-  const Policy &Policy::all     = Policy::policies[Policy::Enum::all];
   const Policy &Policy::epmfs   = Policy::policies[Policy::Enum::epmfs];
   const Policy &Policy::ff      = Policy::policies[Policy::Enum::ff];
   const Policy &Policy::ffwp    = Policy::policies[Policy::Enum::ffwp];

src/policy.hpp

@@ -41,8 +41,7 @@ namespace mergerfs
         {
           invalid = -1,
           BEGIN   = 0,
-          all     = BEGIN,
-          epmfs,
+          epmfs   = BEGIN,
           ff,
           ffwp,
           mfs,
@@ -101,7 +100,6 @@ namespace mergerfs
     static const std::vector<Policy>  _policies_;
     static const Policy * const       policies;
     static const Policy              &invalid;
-    static const Policy              &all;
     static const Policy              &epmfs;
     static const Policy              &ff;
     static const Policy              &ffwp;

src/readlink.cpp

@@ -48,13 +48,13 @@ _readlink(const fs::SearchFunc   searchFunc,
           const size_t           size)
 {
   int rv;
-  fs::PathVector paths;
+  fs::Path path;
 
-  rv = searchFunc(srcmounts,fusepath,paths);
+  rv = searchFunc(srcmounts,fusepath,path);
   if(rv == -1)
     return -errno;
 
-  rv = ::readlink(paths[0].full.c_str(),buf,size);
+  rv = ::readlink(path.full.c_str(),buf,size);
   if(rv == -1)
     return -errno;
 

src/removexattr.cpp

@@ -48,24 +48,15 @@ _removexattr(const fs::SearchFunc  searchFunc,
 {
 #ifndef WITHOUT_XATTR
   int rv;
-  int error;
-  fs::PathVector paths;
+  fs::Path path;
 
-  rv = searchFunc(srcmounts,fusepath,paths);
+  rv = searchFunc(srcmounts,fusepath,path);
   if(rv == -1)
     return -errno;
 
-  rv    = -1;
-  error =  0;
-  for(fs::PathVector::const_iterator
-        i = paths.begin(), ei = paths.end(); i != ei; ++i)
-    {
-      rv &= ::lremovexattr(i->full.c_str(),attrname);
-      if(rv == -1)
-        error = errno;
-    }
+  rv = ::lremovexattr(path.full.c_str(),attrname);
 
-  return ((rv == -1) ? -error : 0);
+  return ((rv == -1) ? -errno : 0);
 #else
   return -ENOTSUP;
 #endif

src/rename.cpp

@@ -48,15 +48,15 @@ _rename(const fs::SearchFunc  searchFunc,
 {
   int rv;
   string pathto;
-  fs::PathVector pathfrom;
+  fs::Path pathfrom;
 
   rv = searchFunc(srcmounts,from,pathfrom);
   if(rv == -1)
     return -errno;
 
-  pathto = fs::make_path(pathfrom[0].base,to);
+  pathto = fs::make_path(pathfrom.base,to);
 
-  rv = ::rename(pathfrom[0].full.c_str(),pathto.c_str());
+  rv = ::rename(pathfrom.full.c_str(),pathto.c_str());
   if(rv == -1 && errno == ENOENT)
     return -EXDEV;
 

src/rmdir.cpp

@@ -45,24 +45,15 @@ _rmdir(const fs::SearchFunc  searchFunc,
        const string         &fusepath)
 {
   int rv;
-  int error;
-  fs::PathVector paths;
+  fs::Path path;
 
-  rv = searchFunc(srcmounts,fusepath,paths);
+  rv = searchFunc(srcmounts,fusepath,path);
   if(rv == -1)
     return -errno;
 
-  rv    = -1;
-  error =  0;
-  for(fs::PathVector::const_iterator
-        i = paths.begin(), ei = paths.end(); i != ei; ++i)
-    {
-      rv &= ::rmdir(i->full.c_str());
-      if(rv == -1)
-        error = errno;
-    }
+  rv = ::rmdir(path.full.c_str());
 
-  return ((rv == -1) ? -error : 0);
+  return ((rv == -1) ? -errno : 0);
 }
 
 namespace mergerfs

src/setxattr.cpp

@@ -234,24 +234,15 @@ _setxattr(const fs::SearchFunc  searchFunc,
 {
 #ifndef WITHOUT_XATTR
   int rv;
-  int error;
-  fs::PathVector paths;
+  fs::Path path;
 
-  rv = searchFunc(srcmounts,fusepath,paths);
+  rv = searchFunc(srcmounts,fusepath,path);
   if(rv == -1)
     return -errno;
 
-  rv    = -1;
-  error =  0;
-  for(fs::PathVector::const_iterator
-        i = paths.begin(), ei = paths.end(); i != ei; ++i)
-    {
-      rv &= ::lsetxattr(i->full.c_str(),attrname,attrval,attrvalsize,flags);
-      if(rv == -1)
-        error = errno;
-    }
+  rv = ::lsetxattr(path.full.c_str(),attrname,attrval,attrvalsize,flags);
 
-  return ((rv == -1) ? -error : 0);
+  return ((rv == -1) ? -errno : 0);
 #else
   return -ENOTSUP;
 #endif

src/symlink.cpp

@@ -44,15 +44,15 @@ _symlink(const vector<string> &srcmounts,
          const string         &to)
 {
   int rv;
-  fs::PathVector paths;
+  fs::Path path;
 
-  fs::find::ff(srcmounts,fs::dirname(to),paths);
-  if(paths.empty())
-    return -ENOENT;
+  rv = fs::find::ff(srcmounts,fs::dirname(to),path);
+  if(rv == -1)
+    return -errno;
 
-  paths[0].full = fs::make_path(paths[0].base,to);
+  path.full = fs::make_path(path.base,to);
 
-  rv = symlink(from.c_str(),paths[0].full.c_str());
+  rv = symlink(from.c_str(),path.full.c_str());
 
   return ((rv == -1) ? -errno : 0);
 }

src/truncate.cpp

@@ -47,24 +47,15 @@ _truncate(const fs::SearchFunc  searchFunc,
           const off_t           size)
 {
   int rv;
-  int error;
-  fs::PathVector paths;
+  fs::Path path;
 
-  rv = searchFunc(srcmounts,fusepath,paths);
+  rv = searchFunc(srcmounts,fusepath,path);
   if(rv == -1)
     return -errno;
 
-  rv    = -1;
-  error =  0;
-  for(fs::PathVector::const_iterator
-        i = paths.begin(), ei = paths.end(); i != ei; ++i)
-    {
-      rv &= ::truncate(i->full.c_str(),size);
-      if(rv == -1)
-        error = errno;
-    }
+  rv = ::truncate(path.full.c_str(),size);
 
-  return ((rv == -1) ? -error : 0);
+  return ((rv == -1) ? -errno : 0);
 }
 
 namespace mergerfs

src/unlink.cpp

@@ -45,24 +45,15 @@ _unlink(const fs::SearchFunc  searchFunc,
         const string         &fusepath)
 {
   int rv;
-  int error;
-  fs::PathVector paths;
+  fs::Path path;
 
-  rv = searchFunc(srcmounts,fusepath,paths);
+  rv = searchFunc(srcmounts,fusepath,path);
   if(rv == -1)
     return -errno;
 
-  rv    = -1;
-  error =  0;
-  for(fs::PathVector::const_iterator
-        i = paths.begin(), ei = paths.end(); i != ei; ++i)
-    {
-      rv &= ::unlink(i->full.c_str());
-      if(rv == -1)
-        error = errno;
-    }
+  rv = ::unlink(path.full.c_str());
 
-  return ((rv == -1) ? -error : 0);
+  return ((rv == -1) ? -errno : 0);
 }
 
 namespace mergerfs

src/utimens.cpp

@@ -47,24 +47,15 @@ _utimens(const fs::SearchFunc   searchFunc,
          const struct timespec  ts[2])
 {
   int rv;
-  int error;
-  fs::PathVector paths;
+  fs::Path path;
 
-  rv = searchFunc(srcmounts,fusepath,paths);
+  rv = searchFunc(srcmounts,fusepath,path);
   if(rv == -1)
     return -errno;
 
-  rv    = -1;
-  error =  0;
-  for(fs::PathVector::const_iterator
-        i = paths.begin(), ei = paths.end(); i != ei; ++i)
-    {
-      rv &= ::utimensat(0,i->full.c_str(),ts,AT_SYMLINK_NOFOLLOW);
-      if(rv == -1)
-        error = errno;
-    }
+  rv = ::utimensat(0,path.full.c_str(),ts,AT_SYMLINK_NOFOLLOW);
 
-  return ((rv == -1) ? -error : 0);
+  return ((rv == -1) ? -errno : 0);
 }
 
 namespace mergerfs