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tst: passthrough-fuse: fi_fd, fi_setfd, etc. macros

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This commit is contained in:
Bill Zissimopoulos 2017-01-29 16:45:21 -08:00
parent c0aaebd0a5
commit 706fa2cc07
1 changed files with 26 additions and 16 deletions
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42
tst/passthrough-fuse/passthrough-fuse.c
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@ -34,6 +34,16 @@
#define PROGNAME "passthrough-fuse"
#define concat_path(ptfs, fn, fp) (sizeof fp > (unsigned)snprintf(fp, sizeof fp, "%s%s", ptfs->rootdir, fn))
#define fi_dirbit (0x8000000000000000ULL)
#define fi_fh(fi, MASK) ((intptr_t)((fi)->fh & (MASK)))
#define fi_setfh(fi, FH, MASK) ((fi)->fh = (intptr_t)(FH) | (MASK))
#define fi_fd(fi) (fi_fh(fi, fi_dirbit) ? \
dirfd((DIR *)fi_fh(fi, ~fi_dirbit)) : (int)fi_fh(fi, ~fi_dirbit))
#define fi_dirp(fi) ((DIR *)fi_fh(fi, ~fi_dirbit))
#define fi_setfd(fi, fd) (fi_setfh(fi, fd, 0))
#define fi_setdirp(fi, dirp) (fi_setfh(fi, dirp, fi_dirbit))
#define ptfs_impl_fullpath(n) \
char full ## n[PATH_MAX]; \
if (!concat_path(((PTFS *)fuse_get_context()->private_data), n, full ## n))\
@ -114,25 +124,25 @@ static int ptfs_open(const char *path, struct fuse_file_info *fi)
ptfs_impl_fullpath(path);
int fd;
return -1 != (fd = open(path, fi->flags)) ? (fi->fh = fd, 0) : -errno;
return -1 != (fd = open(path, fi->flags)) ? (fi_setfd(fi, fd), 0) : -errno;
}
static int ptfs_read(const char *path, char *buf, size_t size, fuse_off_t off,
struct fuse_file_info *fi)
{
int fd = (int)fi->fh;
int fd = fi_fd(fi);
int by;
return -1 != (by = pread(fd, buf, size, off)) ? by : -errno;
int nb;
return -1 != (nb = pread(fd, buf, size, off)) ? nb : -errno;
}
static int ptfs_write(const char *path, const char *buf, size_t size, fuse_off_t off,
struct fuse_file_info *fi)
{
int fd = (int)fi->fh;
int fd = fi_fd(fi);
int by;
return -1 != (by = pwrite(fd, buf, size, off)) ? by : -errno;
int nb;
return -1 != (nb = pwrite(fd, buf, size, off)) ? nb : -errno;
}
static int ptfs_statfs(const char *path, struct fuse_statvfs *stbuf)
@ -144,7 +154,7 @@ static int ptfs_statfs(const char *path, struct fuse_statvfs *stbuf)
static int ptfs_release(const char *path, struct fuse_file_info *fi)
{
int fd = (int)fi->fh;
int fd = fi_fd(fi);
close(fd);
return 0;
@ -152,7 +162,7 @@ static int ptfs_release(const char *path, struct fuse_file_info *fi)
static int ptfs_fsync(const char *path, int datasync, struct fuse_file_info *fi)
{
int fd = (int)fi->fh;
int fd = fi_fd(fi);
return -1 != fsync(fd) ? 0 : -errno;
}
@ -162,13 +172,13 @@ static int ptfs_opendir(const char *path, struct fuse_file_info *fi)
ptfs_impl_fullpath(path);
DIR *dirp;
return 0 != (dirp = opendir(path)) ? (fi->fh = (intptr_t)dirp, 0) : -errno;
return 0 != (dirp = opendir(path)) ? (fi_setdirp(fi, dirp), 0) : -errno;
}
static int ptfs_readdir(const char *path, void *buf, fuse_fill_dir_t filler, fuse_off_t off,
struct fuse_file_info *fi)
{
DIR *dirp = (DIR *)fi->fh;
DIR *dirp = fi_dirp(fi);
struct dirent *de;
rewinddir(dirp);
@ -186,9 +196,9 @@ static int ptfs_readdir(const char *path, void *buf, fuse_fill_dir_t filler, fus
static int ptfs_releasedir(const char *path, struct fuse_file_info *fi)
{
DIR *dp = (DIR *)fi->fh;
DIR *dirp = fi_dirp(fi);
closedir(dp);
closedir(dirp);
return 0;
}
@ -197,19 +207,19 @@ static int ptfs_create(const char *path, fuse_mode_t mode, struct fuse_file_info
ptfs_impl_fullpath(path);
int fd;
return -1 != (fd = open(path, O_CREAT | O_EXCL, mode)) ? (fi->fh = fd, 0) : -errno;
return -1 != (fd = open(path, O_CREAT | O_EXCL, mode)) ? (fi_setfd(fi, fd), 0) : -errno;
}
static int ptfs_ftruncate(const char *path, fuse_off_t off, struct fuse_file_info *fi)
{
int fd = (int)fi->fh;
int fd = fi_fd(fi);
return -1 != ftruncate(fd, off) ? 0 : -errno;
}
static int ptfs_fgetattr(const char *path, struct fuse_stat *stbuf, struct fuse_file_info *fi)
{
int fd = (int)fi->fh;
int fd = fi_fd(fi);
return -1 != fstat(fd, stbuf) ? 0 : -errno;
}