static int
do_sync (int fd, u_int32_t flags)
{
if (flags & SYNC_THREAD)
return toggle_sync_thread (fd, flags, sSYNC);
return fd_sync (fd, flags);
}
static void*
thread_run (void* arg)
{
int rc = 0;
long l = 0;
size_t nsync = 0;
(void) arg;
(void) printf ("Thread %ld started\n", (long)pthread_self());
rc = pthread_mutex_lock (&g_st.mtx);
if (rc) {
(void) fprintf (stderr, "\npthread_mutex_lock error [%d]\n", rc);
return (void*)(l = rc);
}
do {
while (sWAIT == g_st.state) {
rc = pthread_cond_wait (&g_st.cond, &g_st.mtx);
}
if (sSYNC == g_st.state || sQUIT == g_st.state) {
rc = fd_sync (g_st.fd, g_st.flags);
if (rc) {
(void) fprintf (stderr, "\n%s: fd_sync error %d\n",
__func__, rc);
break;
}
++nsync;
}
if (sQUIT == g_st.state)
break;
else
g_st.state = sWAIT;
} while (1);
rc = pthread_mutex_unlock (&g_st.mtx);
if (rc) {
(void) fprintf (stderr, "\npthread_mutex_unlock error [%d]\n", rc);
return (void*)(l = rc);
}
(void) printf ("%ld syncs, thread %ld is exiting\n",
(long)nsync, (long)pthread_self());
return NULL;
}
int openwritenclose_unsafe_internal (char const *fn, char const *s, unsigned int len, uint64 *dev, uint64 *ino, int dosync)
{
struct stat st ;
int fd = open_trunc(fn) ;
if (fd < 0) return 0 ;
if (allwrite(fd, s, len) < len) goto fail ;
if ((dev || ino) && (fstat(fd, &st) < 0)) goto fail ;
if (dosync && (fd_sync(fd) < 0) && (errno != EINVAL)) goto fail ;
fd_close(fd) ;
if (dev) *dev = (uint64)st.st_dev ;
if (ino) *ino = (uint64)st.st_ino ;
return 1 ;
fail:
{
register int e = errno ;
fd_close(fd) ;
unlink(fn) ;
errno = e ;
}
return 0 ;
}
COMMIT3res *nfsproc3_commit_3_svc(COMMIT3args * argp, struct svc_req * rqstp)
{
static COMMIT3res result;
char *path;
int res;
PREP(path, argp->file);
result.status = join(is_reg(), exports_rw());
if (result.status == NFS3_OK) {
res = fd_sync(argp->file);
if (res != -1)
memcpy(result.COMMIT3res_u.resok.verf, wverf, NFS3_WRITEVERFSIZE);
else
/* error during fsync() or close() */
result.status = NFS3ERR_IO;
}
/* overlaps with resfail */
result.COMMIT3res_u.resfail.file_wcc.before = get_pre_cached();
result.COMMIT3res_u.resfail.file_wcc.after = get_post_stat(path, rqstp);
return &result;
}