add fuse_invalidate() to library API
diff --git a/lib/fuse.c b/lib/fuse.c
index 80c1488..671fbcc 100644
--- a/lib/fuse.c
+++ b/lib/fuse.c
@@ -225,6 +225,37 @@
return node;
}
+static int path_lookup(struct fuse *f, const char *path, fino_t *inop)
+{
+ fino_t ino;
+ int err;
+ char *s;
+ char *name;
+ char *tmp = strdup(path);
+ if (!tmp)
+ return -ENOMEM;
+
+ pthread_mutex_lock(&f->lock);
+ ino = FUSE_ROOT_INO;
+ err = 0;
+ for (s = tmp; (name = strsep(&s, "/")) != NULL; ) {
+ if (name[0]) {
+ struct node *node = __lookup_node(f, ino, name);
+ if (node == NULL) {
+ err = -ENOENT;
+ break;
+ }
+ ino = node->ino;
+ }
+ }
+ pthread_mutex_unlock(&f->lock);
+ free(tmp);
+ if (!err)
+ *inop = ino;
+
+ return err;
+}
+
static char *add_name(char *buf, char *s, const char *name)
{
size_t len = strlen(name);
@@ -1544,6 +1575,40 @@
}
}
+int fuse_invalidate(struct fuse *f, const char *path)
+{
+ int res;
+ int err;
+ fino_t ino;
+ struct fuse_user_header h;
+
+ err = path_lookup(f, path, &ino);
+ if (err) {
+ if (err == -ENOENT)
+ return 0;
+ else
+ return err;
+ }
+
+ memset(&h, 0, sizeof(struct fuse_user_header));
+ h.opcode = FUSE_INVALIDATE;
+ h.ino = ino;
+
+ if ((f->flags & FUSE_DEBUG)) {
+ printf("INVALIDATE ino: %li\n", ino);
+ fflush(stdout);
+ }
+
+ res = write(f->fd, &h, sizeof(struct fuse_user_header));
+ if (res == -1) {
+ if (errno != ENOENT) {
+ perror("fuse: writing device");
+ return -errno;
+ }
+ }
+ return 0;
+}
+
void fuse_exit(struct fuse *f)
{
f->exited = 1;