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-rw-r--r--fuse/fuse_mt.c122
1 files changed, 122 insertions, 0 deletions
diff --git a/fuse/fuse_mt.c b/fuse/fuse_mt.c
new file mode 100644
index 000000000..f6dbe71b2
--- /dev/null
+++ b/fuse/fuse_mt.c
@@ -0,0 +1,122 @@
+/*
+ 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;
+};
+
+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;
+
+ int res = fuse_start_cleanup_thread(f);
+ if (res)
+ return -1;
+
+ res = fuse_session_loop_mt(fuse_get_session(f));
+ fuse_stop_cleanup_thread(f);
+ return res;
+}
+
+FUSE_SYMVER(".symver fuse_loop_mt_proc,__fuse_loop_mt@");