optimization: prepend_source_directory

[rrq/fuse_xattrs.git] / passthrough.c

diff --git a/passthrough.c b/passthrough.c
index 95058833a371376d61204cd234965f87c3a8d5cd..3f554905a67e721fa095a6333f8ca0ad01706692 100644 (file)
--- a/passthrough.c
+++ b/passthrough.c
@@ -1,7 +1,7 @@
 /*
   fuse_xattrs - Add xattrs support using sidecar files
 
-  Copyright (C) 2016  Felipe Barriga Richards <felipe {at} felipebarriga.cl>
+  Copyright (C) 2016-2017  Felipe Barriga Richards <felipe {at} felipebarriga.cl>
 
   Based on passthrough.c (libfuse example)
 
@@ -22,13 +22,17 @@
 #include <dirent.h>
 #include <errno.h>
 
-#include "fuse_xattrs_config.h"
+#include "xattrs_config.h"
 #include "utils.h"
 
 int xmp_getattr(const char *path, struct stat *stbuf) {
     int res;
 
-    char *_path = prepend_source_directory(xattrs_config.source_dir, path);
+    if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1)  {
+        return -ENOENT;
+    }
+
+    char *_path = prepend_source_directory(path);
     res = lstat(_path, stbuf);
     free(_path);
 
@@ -40,8 +44,11 @@ int xmp_getattr(const char *path, struct stat *stbuf) {
 
 int xmp_access(const char *path, int mask) {
     int res;
+    if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1)  {
+        return -ENOENT;
+    }
 
-    char *_path = prepend_source_directory(xattrs_config.source_dir, path);
+    char *_path = prepend_source_directory(path);
     res = access(_path, mask);
     free(_path);
 
@@ -53,8 +60,11 @@ int xmp_access(const char *path, int mask) {
 
 int xmp_readlink(const char *path, char *buf, size_t size) {
     int res;
+    if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1)  {
+        return -ENOENT;
+    }
 
-    char *_path = prepend_source_directory(xattrs_config.source_dir, path);
+    char *_path = prepend_source_directory(path);
     res = readlink(_path, buf, size - 1);
     free(_path);
 
@@ -74,7 +84,7 @@ int xmp_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
     (void) offset;
     (void) fi;
 
-    char *_path = prepend_source_directory(xattrs_config.source_dir, path);
+    char *_path = prepend_source_directory(path);
     dp = opendir(_path);
     free(_path);
 
@@ -82,6 +92,10 @@ int xmp_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
         return -errno;
 
     while ((de = readdir(dp)) != NULL) {
+        if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(de->d_name) == 1) {
+            continue;
+        }
+
         struct stat st;
         memset(&st, 0, sizeof(st));
         st.st_ino = de->d_ino;
@@ -96,7 +110,11 @@ int xmp_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
 
 int xmp_mknod(const char *path, mode_t mode, dev_t rdev) {
     int res;
-    char *_path = prepend_source_directory(xattrs_config.source_dir, path);
+    if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1)  {
+        return -ENOENT;
+    }
+
+    char *_path = prepend_source_directory(path);
 
     /* On Linux this could just be 'mknod(path, mode, rdev)' but this
        is more portable */
@@ -118,8 +136,11 @@ int xmp_mknod(const char *path, mode_t mode, dev_t rdev) {
 
 int xmp_mkdir(const char *path, mode_t mode) {
     int res;
+    if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1)  {
+        return -ENOENT;
+    }
 
-    char *_path = prepend_source_directory(xattrs_config.source_dir, path);
+    char *_path = prepend_source_directory(path);
     res = mkdir(_path, mode);
     free(_path);
 
@@ -131,8 +152,11 @@ int xmp_mkdir(const char *path, mode_t mode) {
 
 int xmp_unlink(const char *path) {
     int res;
+    if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1)  {
+        return -ENOENT;
+    }
 
-    char *_path = prepend_source_directory(xattrs_config.source_dir, path);
+    char *_path = prepend_source_directory(path);
     res = unlink(_path);
     free(_path);
 
@@ -144,8 +168,11 @@ int xmp_unlink(const char *path) {
 
 int xmp_rmdir(const char *path) {
     int res;
+    if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1)  {
+        return -ENOENT;
+    }
 
-    char *_path = prepend_source_directory(xattrs_config.source_dir, path);
+    char *_path = prepend_source_directory(path);
     res = rmdir(_path);
     free(_path);
 
@@ -157,8 +184,13 @@ int xmp_rmdir(const char *path) {
 
 int xmp_symlink(const char *from, const char *to) {
     int res;
+    if (xattrs_config.show_sidecar == 0) {
+        if (filename_is_sidecar(from) == 1 || filename_is_sidecar(to)) {
+            return -ENOENT;
+        }
+    }
 
-    char *_to = prepend_source_directory(xattrs_config.source_dir, to);
+    char *_to = prepend_source_directory(to);
     res = symlink(from, _to);
     free(_to);
 
@@ -170,9 +202,14 @@ int xmp_symlink(const char *from, const char *to) {
 
 int xmp_rename(const char *from, const char *to) {
     int res;
+    if (xattrs_config.show_sidecar == 0) {
+        if (filename_is_sidecar(from) == 1 || filename_is_sidecar(to)) {
+            return -ENOENT;
+        }
+    }
 
-    char *_from = prepend_source_directory(xattrs_config.source_dir, from);
-    char *_to = prepend_source_directory(xattrs_config.source_dir, to);
+    char *_from = prepend_source_directory(from);
+    char *_to = prepend_source_directory(to);
     res = rename(_from, _to);
     free(_from);
     free(_to);
@@ -185,9 +222,14 @@ int xmp_rename(const char *from, const char *to) {
 
 int xmp_link(const char *from, const char *to) {
     int res;
+    if (xattrs_config.show_sidecar == 0) {
+        if (filename_is_sidecar(from) == 1 || filename_is_sidecar(to)) {
+            return -ENOENT;
+        }
+    }
 
-    char *_from = prepend_source_directory(xattrs_config.source_dir, from);
-    char *_to = prepend_source_directory(xattrs_config.source_dir, to);
+    char *_from = prepend_source_directory(from);
+    char *_to = prepend_source_directory(to);
     res = link(_from, _to);
     free(_from);
     free(_to);
@@ -200,8 +242,11 @@ int xmp_link(const char *from, const char *to) {
 
 int xmp_chmod(const char *path, mode_t mode) {
     int res;
+    if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1)  {
+        return -ENOENT;
+    }
 
-    char *_path = prepend_source_directory(xattrs_config.source_dir, path);
+    char *_path = prepend_source_directory(path);
     res = chmod(_path, mode);
     free(_path);
 
@@ -213,8 +258,11 @@ int xmp_chmod(const char *path, mode_t mode) {
 
 int xmp_chown(const char *path, uid_t uid, gid_t gid) {
     int res;
+    if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1)  {
+        return -ENOENT;
+    }
 
-    char *_path = prepend_source_directory(xattrs_config.source_dir, path);
+    char *_path = prepend_source_directory(path);
     res = lchown(_path, uid, gid);
     free(_path);
 
@@ -226,8 +274,11 @@ int xmp_chown(const char *path, uid_t uid, gid_t gid) {
 
 int xmp_truncate(const char *path, off_t size) {
     int res;
+    if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1)  {
+        return -ENOENT;
+    }
 
-    char *_path = prepend_source_directory(xattrs_config.source_dir, path);
+    char *_path = prepend_source_directory(path);
     res = truncate(_path, size);
     free(_path);
 
@@ -241,10 +292,14 @@ int xmp_truncate(const char *path, off_t size) {
 int xmp_utimens(const char *path, const struct timespec ts[2],
 struct fuse_file_info *fi)
 {
+    if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1)  {
+        return -ENOENT;
+    }
+
     (void) fi;
     int res;
 
-    char *_path = prepend_source_directory(xattrs_config.source_dir, path);
+    char *_path = prepend_source_directory(path);
     /* don't use utime/utimes since they follow symlinks */
     res = utimensat(0, _path, ts, AT_SYMLINK_NOFOLLOW);
     free(_path);
@@ -257,8 +312,11 @@ struct fuse_file_info *fi)
 
 int xmp_open(const char *path, struct fuse_file_info *fi) {
     int res;
+    if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1)  {
+        return -ENOENT;
+    }
 
-    char *_path = prepend_source_directory(xattrs_config.source_dir, path);
+    char *_path = prepend_source_directory(path);
     res = open(_path, fi->flags);
     free(_path);
 
@@ -270,12 +328,17 @@ int xmp_open(const char *path, struct fuse_file_info *fi) {
 }
 
 int xmp_read(const char *path, char *buf, size_t size, off_t offset,
-             struct fuse_file_info *fi) {
+             struct fuse_file_info *fi)
+{
+    if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1)  {
+        return -ENOENT;
+    }
+
     int fd;
     int res;
 
     (void) fi;
-    char *_path = prepend_source_directory(xattrs_config.source_dir, path);
+    char *_path = prepend_source_directory(path);
     fd = open(_path, O_RDONLY);
     free(_path);
 
@@ -291,12 +354,17 @@ int xmp_read(const char *path, char *buf, size_t size, off_t offset,
 }
 
 int xmp_write(const char *path, const char *buf, size_t size,
-              off_t offset, struct fuse_file_info *fi) {
+              off_t offset, struct fuse_file_info *fi)
+{
+    if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1)  {
+        return -ENOENT;
+    }
+
     int fd;
     int res;
 
     (void) fi;
-    char *_path = prepend_source_directory(xattrs_config.source_dir, path);
+    char *_path = prepend_source_directory(path);
     fd = open(_path, O_WRONLY);
     free(_path);
 
@@ -313,8 +381,11 @@ int xmp_write(const char *path, const char *buf, size_t size,
 
 int xmp_statfs(const char *path, struct statvfs *stbuf) {
     int res;
+    if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1)  {
+        return -ENOENT;
+    }
 
-    char *_path = prepend_source_directory(xattrs_config.source_dir, path);
+    char *_path = prepend_source_directory(path);
     res = statvfs(_path, stbuf);
     free(_path);
 
@@ -348,6 +419,10 @@ int xmp_fsync(const char *path, int isdatasync,
 int xmp_fallocate(const char *path, int mode,
                   off_t offset, off_t length, struct fuse_file_info *fi)
 {
+    if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1)  {
+        return -ENOENT;
+    }
+
     int fd;
     int res;
 
@@ -356,7 +431,7 @@ int xmp_fallocate(const char *path, int mode,
     if (mode)
         return -EOPNOTSUPP;
 
-    char *_path = concat(xattrs_config.source_dir, path);
+    char *_path = prepend_source_directory(path);
     fd = open(_path, O_WRONLY);
     free(_path);