lib/fuse_loop.c

   1 /*
   2   FUSE: Filesystem in Userspace
   3   Copyright (C) 2001-2007  Miklos Szeredi <miklos@szeredi.hu>
   4
   5   This program can be distributed under the terms of the GNU LGPLv2.
   6   See the file COPYING.LIB
   7 */
   8
   9 #include "fuse_lowlevel.h"
  10
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13 #include <errno.h>
  14
  15 int fuse_session_loop(struct fuse_session *se)
  16 {
  17         int res = 0;
  18         struct fuse_chan *ch = fuse_session_next_chan(se, NULL);
  19         size_t bufsize = fuse_chan_bufsize(ch);
  20         char *buf = (char *) malloc(bufsize);
  21         if (!buf) {
  22                 fprintf(stderr, "fuse: failed to allocate read buffer\n");
  23                 return -1;
  24         }
  25
  26         while (!fuse_session_exited(se)) {
  27                 struct fuse_chan *tmpch = ch;
  28                 struct fuse_buf fbuf = {
  29                         .mem = buf,
  30                         .size = bufsize,
  31                 };
  32
  33                 res = fuse_session_receive_buf(se, &fbuf, &tmpch);
  34
  35                 if (res == -EINTR)
  36                         continue;
  37                 if (res <= 0)
  38                         break;
  39
  40                 fuse_session_process_buf(se, &fbuf, tmpch);
  41         }
  42
  43         free(buf);
  44         fuse_session_reset(se);
  45         return res < 0 ? -1 : 0;
  46 }