1 files changed, 94 insertions, 0 deletions
diff --git a/lib/fuse_lowlevel.c b/lib/fuse_lowlevel.c
index 8ccc733..368ac71 100644
--- a/lib/fuse_lowlevel.c
+++ b/lib/fuse_lowlevel.c
@@ -3055,3 +3055,97 @@ int fuse_req_getgroups(fuse_req_t req, int size, gid_t list[])
 	return -ENOSYS;
 }
 #endif
+
+void fuse_session_add_chan(struct fuse_session *se, struct fuse_chan *ch)
+{
+	assert(se->ch == NULL);
+	assert(ch->se == NULL);
+	se->ch = ch;
+	ch->se = se;
+}
+
+void fuse_session_remove_chan(struct fuse_chan *ch)
+{
+	struct fuse_session *se = ch->se;
+	if (se) {
+		assert(se->ch == ch);
+		se->ch = NULL;
+		ch->se = NULL;
+	}
+}
+
+struct fuse_chan *fuse_session_chan(struct fuse_session *se)
+{
+	return se->ch;
+}
+
+int fuse_chan_clearfd(struct fuse_chan *ch)
+{
+	int fd = ch->fd;
+	ch->fd = -1;
+	return fd;
+}
+
+void fuse_session_exit(struct fuse_session *se)
+{
+	se->exited = 1;
+}
+
+void fuse_session_reset(struct fuse_session *se)
+{
+	se->exited = 0;
+}
+
+int fuse_session_exited(struct fuse_session *se)
+{
+	return se->exited;
+}
+
+struct fuse_chan *fuse_chan_new(int fd)
+{
+	struct fuse_chan *ch = (struct fuse_chan *) malloc(sizeof(*ch));
+	if (ch == NULL) {
+		fprintf(stderr, "fuse: failed to allocate channel\n");
+		return NULL;
+	}
+
+	memset(ch, 0, sizeof(*ch));
+	ch->fd = fd;
+	ch->ctr = 1;
+	fuse_mutex_init(&ch->lock);
+
+	return ch;
+}
+
+struct fuse_session *fuse_chan_session(struct fuse_chan *ch)
+{
+	return ch->se;
+}
+
+struct fuse_chan *fuse_chan_get(struct fuse_chan *ch)
+{
+	assert(ch->ctr > 0);
+	pthread_mutex_lock(&ch->lock);
+	ch->ctr++;
+	pthread_mutex_unlock(&ch->lock);
+
+	return ch;
+}
+
+void fuse_chan_put(struct fuse_chan *ch)
+{
+	if (ch) {
+		pthread_mutex_lock(&ch->lock);
+		ch->ctr--;
+		if (!ch->ctr) {
+			pthread_mutex_unlock(&ch->lock);
+			fuse_session_remove_chan(ch);
+			fuse_chan_close(ch);
+			pthread_mutex_destroy(&ch->lock);
+			free(ch);
+		} else {
+			pthread_mutex_unlock(&ch->lock);
+		}
+
+	}
+}