1 files changed, 120 insertions, 0 deletions

diff --git a/fuse/fuse_mt.c b/fuse/fuse_mt.c
new file mode 100644
index 000000000..7f940006d
--- /dev/null
+++ b/fuse/fuse_mt.c
@@ -0,0 +1,120 @@
+/*
+  FUSE: Filesystem in Userspace
+  Copyright (C) 2001-2007  Miklos Szeredi <miklos@szeredi.hu>
+
+  This program can be distributed under the terms of the GNU LGPLv2.
+  See the file COPYING.LIB.
+*/
+
+#include "fuse_i.h"
+#include "fuse_misc.h"
+#include "fuse_lowlevel.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <pthread.h>
+#include <assert.h>
+
+struct procdata {
+	struct fuse *f;
+	struct fuse_chan *prevch;
+	struct fuse_session *prevse;
+	fuse_processor_t proc;
+	void *data;
+};
+
+#ifdef __MULTI_THREAD
+
+static void mt_session_proc(void *data, const char *buf, size_t len,
+			    struct fuse_chan *ch)
+{
+	struct procdata *pd = (struct procdata *) data;
+	struct fuse_cmd *cmd = *(struct fuse_cmd **) buf;
+
+	(void) len;
+	(void) ch;
+	pd->proc(pd->f, cmd, pd->data);
+}
+
+static void mt_session_exit(void *data, int val)
+{
+	struct procdata *pd = (struct procdata *) data;
+	if (val)
+		fuse_session_exit(pd->prevse);
+	else
+		fuse_session_reset(pd->prevse);
+}
+
+static int mt_session_exited(void *data)
+{
+	struct procdata *pd = (struct procdata *) data;
+	return fuse_session_exited(pd->prevse);
+}
+
+static int mt_chan_receive(struct fuse_chan **chp, char *buf, size_t size)
+{
+	struct fuse_cmd *cmd;
+	struct procdata *pd = (struct procdata *) fuse_chan_data(*chp);
+
+	assert(size >= sizeof(cmd));
+
+	cmd = fuse_read_cmd(pd->f);
+	if (cmd == NULL)
+		return 0;
+
+	*(struct fuse_cmd **) buf = cmd;
+
+	return sizeof(cmd);
+}
+
+int fuse_loop_mt_proc(struct fuse *f, fuse_processor_t proc, void *data)
+{
+	int res;
+	struct procdata pd;
+	struct fuse_session *prevse = fuse_get_session(f);
+	struct fuse_session *se;
+	struct fuse_chan *prevch = fuse_session_next_chan(prevse, NULL);
+	struct fuse_chan *ch;
+	struct fuse_session_ops sop = {
+		.exit = mt_session_exit,
+		.exited = mt_session_exited,
+		.process = mt_session_proc,
+	};
+	struct fuse_chan_ops cop = {
+		.receive = mt_chan_receive,
+	};
+
+	pd.f = f;
+	pd.prevch = prevch;
+	pd.prevse = prevse;
+	pd.proc = proc;
+	pd.data = data;
+
+	se = fuse_session_new(&sop, &pd);
+	if (se == NULL)
+		return -1;
+
+	ch = fuse_chan_new(&cop, fuse_chan_fd(prevch),
+			   sizeof(struct fuse_cmd *), &pd);
+	if (ch == NULL) {
+		fuse_session_destroy(se);
+		return -1;
+	}
+	fuse_session_add_chan(se, ch);
+	res = fuse_session_loop_mt(se);
+	fuse_session_destroy(se);
+	return res;
+}
+
+int fuse_loop_mt(struct fuse *f)
+{
+	if (f == NULL)
+		return -1;
+
+	return fuse_session_loop_mt(fuse_get_session(f));
+}
+
+FUSE_SYMVER(".symver fuse_loop_mt_proc,__fuse_loop_mt@");
+
+#endif