* A #GstPoll keeps track of file descriptors much like fd_set (used with
* select()) or a struct pollfd array (used with poll()). Once created with
* gst_poll_new(), the set can be used to wait for file descriptors to be
- * readable and/or writeable. It is possible to make this wait be controlled
+ * readable and/or writable. It is possible to make this wait be controlled
* by specifying %TRUE for the @controllable flag when creating the set (or
* later calling gst_poll_set_controllable()).
*
* New file descriptors are added to the set using gst_poll_add_fd(), and
* removed using gst_poll_remove_fd(). Controlling which file descriptors
- * should be waited for to become readable and/or writeable are done using
+ * should be waited for to become readable and/or writable are done using
* gst_poll_fd_ctl_read() and gst_poll_fd_ctl_write().
*
* Use gst_poll_wait() to wait for the file descriptors to actually become
- * readable and/or writeable, or to timeout if no file descriptor is available
+ * readable and/or writable, or to timeout if no file descriptor is available
* in time. The wait can be controlled by calling gst_poll_restart() and
* gst_poll_set_flushing().
*
#endif
#include "gst_private.h"
+#include "glib-compat-private.h"
#include <sys/types.h>
#define EINPROGRESS WSAEINPROGRESS
#else
#define _GNU_SOURCE 1
+#ifdef HAVE_SYS_POLL_H
#include <sys/poll.h>
+#endif
+#ifdef HAVE_POLL_H
+#include <poll.h>
+#endif
#include <sys/time.h>
#include <sys/socket.h>
#endif
{
GstPollMode mode;
- GMutex *lock;
+ GMutex lock;
/* array of fds, always written to and read from with lock */
GArray *fds;
/* array of active fds, only written to from the waiting thread with the
#define IS_FLUSHING(s) (g_atomic_int_get(&(s)->flushing))
#define SET_FLUSHING(s,val) (g_atomic_int_set(&(s)->flushing, (val)))
-#define INC_WAITING(s) (g_atomic_int_exchange_and_add(&(s)->waiting, 1))
-#define DEC_WAITING(s) (g_atomic_int_exchange_and_add(&(s)->waiting, -1))
+#define INC_WAITING(s) (g_atomic_int_add(&(s)->waiting, 1))
+#define DEC_WAITING(s) (g_atomic_int_add(&(s)->waiting, -1))
#define GET_WAITING(s) (g_atomic_int_get(&(s)->waiting))
#define TEST_REBUILD(s) (g_atomic_int_compare_and_exchange(&(s)->rebuild, 1, 0))
{
gboolean result = TRUE;
- if (g_atomic_int_exchange_and_add (&set->control_pending, 1) == 0) {
+ if (g_atomic_int_add (&set->control_pending, 1) == 0) {
/* raise when nothing pending */
+ GST_LOG ("%p: raise", set);
result = WAKE_EVENT (set);
}
return result;
gboolean result = TRUE;
if (g_atomic_int_dec_and_test (&set->control_pending)) {
+ GST_LOG ("%p: release", set);
result = RELEASE_EVENT (set);
}
return result;
break;
else
/* retry again until we read it successfully */
- g_atomic_int_exchange_and_add (&set->control_pending, 1);
+ g_atomic_int_add (&set->control_pending, 1);
}
}
return old;
{
guint i;
- g_mutex_lock (set->lock);
+ g_mutex_lock (&set->lock);
for (i = 0; i < set->fds->len; i++) {
struct pollfd *pfd = &g_array_index (set->fds, struct pollfd, i);
if (pfd->fd >= FD_SETSIZE)
goto too_many;
}
- g_mutex_unlock (set->lock);
+ g_mutex_unlock (&set->lock);
return TRUE;
too_many:
{
- g_mutex_unlock (set->lock);
+ g_mutex_unlock (&set->lock);
return FALSE;
}
}
FD_ZERO (writefds);
FD_ZERO (errorfds);
- g_mutex_lock (set->lock);
+ g_mutex_lock (&set->lock);
for (i = 0; i < set->active_fds->len; i++) {
struct pollfd *pfd = &g_array_index (set->fds, struct pollfd, i);
}
}
- g_mutex_unlock (set->lock);
+ g_mutex_unlock (&set->lock);
return max_fd;
}
{
guint i;
- g_mutex_lock (set->lock);
+ g_mutex_lock (&set->lock);
for (i = 0; i < set->active_fds->len; i++) {
struct pollfd *pfd = &g_array_index (set->active_fds, struct pollfd, i);
}
}
- g_mutex_unlock (set->lock);
+ g_mutex_unlock (&set->lock);
}
#else /* G_OS_WIN32 */
/*
#endif
/**
- * gst_poll_new:
+ * gst_poll_new: (skip)
* @controllable: whether it should be possible to control a wait.
*
* Create a new file descriptor set. If @controllable, it
GST_DEBUG ("controllable : %d", controllable);
nset = g_slice_new0 (GstPoll);
- nset->lock = g_mutex_new ();
+ g_mutex_init (&nset->lock);
#ifndef G_OS_WIN32
nset->mode = GST_POLL_MODE_AUTO;
nset->fds = g_array_new (FALSE, FALSE, sizeof (struct pollfd));
}
/**
- * gst_poll_new_timer:
+ * gst_poll_new_timer: (skip)
*
* Create a new poll object that can be used for scheduling cancellable
* timeouts.
g_array_free (set->active_fds, TRUE);
g_array_free (set->fds, TRUE);
- g_mutex_free (set->lock);
+ g_mutex_clear (&set->lock);
g_slice_free (GstPoll, set);
}
g_return_val_if_fail (fd != NULL, FALSE);
g_return_val_if_fail (fd->fd >= 0, FALSE);
- g_mutex_lock (set->lock);
+ g_mutex_lock (&set->lock);
ret = gst_poll_add_fd_unlocked (set, fd);
- g_mutex_unlock (set->lock);
+ g_mutex_unlock (&set->lock);
return ret;
}
GST_DEBUG ("%p: fd (fd:%d, idx:%d)", set, fd->fd, fd->idx);
- g_mutex_lock (set->lock);
+ g_mutex_lock (&set->lock);
/* get the index, -1 is an fd that is not added */
idx = find_index (set->fds, fd);
GST_WARNING ("%p: couldn't find fd !", set);
}
- g_mutex_unlock (set->lock);
+ g_mutex_unlock (&set->lock);
return idx >= 0;
}
GST_DEBUG ("%p: fd (fd:%d, idx:%d), active : %d", set,
fd->fd, fd->idx, active);
- g_mutex_lock (set->lock);
+ g_mutex_lock (&set->lock);
idx = find_index (set->fds, fd);
if (idx >= 0) {
GST_WARNING ("%p: couldn't find fd !", set);
}
- g_mutex_unlock (set->lock);
+ g_mutex_unlock (&set->lock);
return idx >= 0;
}
g_return_val_if_fail (fd != NULL, FALSE);
g_return_val_if_fail (fd->fd >= 0, FALSE);
- g_mutex_lock (set->lock);
+ g_mutex_lock (&set->lock);
ret = gst_poll_fd_ctl_read_unlocked (set, fd, active);
- g_mutex_unlock (set->lock);
+ g_mutex_unlock (&set->lock);
return ret;
}
g_return_if_fail (fd != NULL);
g_return_if_fail (fd->fd >= 0);
- g_mutex_lock (set->lock);
+ g_mutex_lock (&set->lock);
idx = find_index (set->fds, fd);
if (idx >= 0) {
MARK_REBUILD (set);
}
- g_mutex_unlock (set->lock);
+ g_mutex_unlock (&set->lock);
#endif
}
GST_DEBUG ("%p: fd (fd:%d, idx:%d)", set, fd->fd, fd->idx);
- g_mutex_lock (set->lock);
+ g_mutex_lock (&((GstPoll *) set)->lock);
idx = find_index (set->active_fds, fd);
if (idx >= 0) {
GST_WARNING ("%p: couldn't find fd !", set);
}
- g_mutex_unlock (set->lock);
+ g_mutex_unlock (&((GstPoll *) set)->lock);
return res;
}
GST_DEBUG ("%p: fd (fd:%d, idx:%d)", set, fd->fd, fd->idx);
- g_mutex_lock (set->lock);
+ g_mutex_lock (&((GstPoll *) set)->lock);
idx = find_index (set->active_fds, fd);
if (idx >= 0) {
GST_WARNING ("%p: couldn't find fd !", set);
}
- g_mutex_unlock (set->lock);
+ g_mutex_unlock (&((GstPoll *) set)->lock);
return res;
}
g_return_val_if_fail (fd != NULL, FALSE);
g_return_val_if_fail (fd->fd >= 0, FALSE);
- g_mutex_lock (set->lock);
+ g_mutex_lock (&((GstPoll *) set)->lock);
res = gst_poll_fd_can_read_unlocked (set, fd);
- g_mutex_unlock (set->lock);
+ g_mutex_unlock (&((GstPoll *) set)->lock);
return res;
}
GST_DEBUG ("%p: fd (fd:%d, idx:%d)", set, fd->fd, fd->idx);
- g_mutex_lock (set->lock);
+ g_mutex_lock (&((GstPoll *) set)->lock);
idx = find_index (set->active_fds, fd);
if (idx >= 0) {
GST_WARNING ("%p: couldn't find fd !", set);
}
- g_mutex_unlock (set->lock);
+ g_mutex_unlock (&((GstPoll *) set)->lock);
return res;
}
if (G_UNLIKELY (old_waiting > 0 && !is_timer))
goto already_waiting;
- /* flushing, exit immediatly */
+ /* flushing, exit immediately */
if (G_UNLIKELY (IS_FLUSHING (set)))
goto flushing;
mode = choose_mode (set, timeout);
if (TEST_REBUILD (set)) {
- g_mutex_lock (set->lock);
+ g_mutex_lock (&set->lock);
#ifndef G_OS_WIN32
g_array_set_size (set->active_fds, set->fds->len);
memcpy (set->active_fds->data, set->fds->data,
if (!gst_poll_prepare_winsock_active_sets (set))
goto winsock_error;
#endif
- g_mutex_unlock (set->lock);
+ g_mutex_unlock (&set->lock);
}
switch (mode) {
restarting = TRUE;
}
- if (G_UNLIKELY (IS_FLUSHING (set))) {
- /* we got woken up and we are flushing, we need to stop */
- errno = EBUSY;
- res = -1;
- break;
- }
+ /* we got woken up and we are flushing, we need to stop */
+ if (G_UNLIKELY (IS_FLUSHING (set)))
+ goto flushing;
+
} while (G_UNLIKELY (restarting));
DEC_WAITING (set);
/* ERRORS */
already_waiting:
{
+ GST_LOG ("%p: we are already waiting", set);
DEC_WAITING (set);
errno = EPERM;
return -1;
}
flushing:
{
+ GST_LOG ("%p: we are flushing", set);
DEC_WAITING (set);
errno = EBUSY;
return -1;
#ifdef G_OS_WIN32
winsock_error:
{
- g_mutex_unlock (set->lock);
+ GST_LOG ("%p: winsock error", set);
+ g_mutex_unlock (&set->lock);
DEC_WAITING (set);
return -1;
}
{
g_return_if_fail (set != NULL);
+ GST_LOG ("%p: flushing: %d", set, flushing);
+
/* update the new state first */
SET_FLUSHING (set, flushing);
projects / platform / upstream / gstreamer.git / blobdiff