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am 97919656: Add support for the utime(2) family of system calls to the sdcard fuse filesystem.

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* commit '97919656803126c6b28ea6070fc86d124ac4ef4b':
  Add support for the utime(2) family of system calls to the sdcard fuse filesystem.
This commit is contained in:
Ken Sumrall 2011-03-24 22:33:18 -07:00 • committed by Android Git Automerger
commit c3e69903ed
1 changed files with 35 additions and 2 deletions
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37
sdcard/sdcard.c
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@ -581,17 +581,50 @@ void handle_fuse_request(struct fuse *fuse, struct fuse_in_header *hdr, void *da
struct fuse_attr_out out;
char *path, buffer[PATH_BUFFER_SIZE];
int res = 0;
struct timespec times[2];
TRACE("SETATTR fh=%llx id=%llx valid=%x\n",
req->fh, hdr->nodeid, req->valid);
/* XXX: incomplete implementation -- truncate only. chmod/chown
* should NEVER be implemented. */
/* XXX: incomplete implementation on purpose. chmod/chown
* should NEVER be implemented.*/
path = node_get_path(node, buffer, 0);
if (req->valid & FATTR_SIZE)
res = truncate(path, req->size);
if (res)
goto getout;
/* Handle changing atime and mtime. If FATTR_ATIME_and FATTR_ATIME_NOW
* are both set, then set it to the current time. Else, set it to the
* time specified in the request. Same goes for mtime. Use utimensat(2)
* as it allows ATIME and MTIME to be changed independently, and has
* nanosecond resolution which fuse also has.
*/
if (req->valid & (FATTR_ATIME | FATTR_MTIME)) {
times[0].tv_nsec = UTIME_OMIT;
times[1].tv_nsec = UTIME_OMIT;
if (req->valid & FATTR_ATIME) {
if (req->valid & FATTR_ATIME_NOW) {
times[0].tv_nsec = UTIME_NOW;
} else {
times[0].tv_sec = req->atime;
times[0].tv_nsec = req->atimensec;
}
}
if (req->valid & FATTR_MTIME) {
if (req->valid & FATTR_MTIME_NOW) {
times[1].tv_nsec = UTIME_NOW;
} else {
times[1].tv_sec = req->mtime;
times[1].tv_nsec = req->mtimensec;
}
}
TRACE("Calling utimensat on %s with atime %ld, mtime=%ld\n", path, times[0].tv_sec, times[1].tv_sec);
res = utimensat(-1, path, times, 0);
}
getout:
memset(&out, 0, sizeof(out));
node_get_attr(node, &out.attr);
out.attr_valid = 10;