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/*
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
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