index 687dc48fb2ff6509a67a1eb698d8d8d17a94dc96..9a0e397db2ec5f6967e937d40eba8233d358e08e 100644 (file)
GST_DEBUG_CATEGORY_STATIC (ncc_debug);
#define GST_CAT_DEFAULT (ncc_debug)
-/* the select call is also performed on the control sockets, that way
- * we can send special commands to unblock or restart the select call */
-#define CONTROL_RESTART 'R' /* restart the select call */
-#define CONTROL_STOP 'S' /* stop the select call */
-#define CONTROL_SOCKETS(self) self->control_sock
-#define WRITE_SOCKET(self) self->control_sock[1]
-#define READ_SOCKET(self) self->control_sock[0]
-
-#define SEND_COMMAND(self, command) \
-G_STMT_START { \
- unsigned char c; c = command; \
- write (WRITE_SOCKET(self), &c, 1); \
-} G_STMT_END
-
-#define READ_COMMAND(self, command, res) \
-G_STMT_START { \
- res = read(READ_SOCKET(self), &command, 1); \
-} G_STMT_END
-
#define DEFAULT_ADDRESS "127.0.0.1"
#define DEFAULT_PORT 5637
#define DEFAULT_TIMEOUT GST_SECOND
PROP_PORT,
};
+#define GST_NET_CLIENT_CLOCK_GET_PRIVATE(obj) \
+ (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GST_TYPE_NET_CLIENT_CLOCK, GstNetClientClockPrivate))
+
+struct _GstNetClientClockPrivate
+{
+ GstPollFD sock;
+ GstPoll *fdset;
+};
+
#define _do_init(type) \
GST_DEBUG_CATEGORY_INIT (ncc_debug, "netclock", 0, "Network client clock");
gobject_class = G_OBJECT_CLASS (klass);
+ g_type_class_add_private (klass, sizeof (GstNetClientClockPrivate));
+
gobject_class->finalize = gst_net_client_clock_finalize;
gobject_class->get_property = gst_net_client_clock_get_property;
gobject_class->set_property = gst_net_client_clock_set_property;
g_object_class_install_property (gobject_class, PROP_ADDRESS,
g_param_spec_string ("address", "address",
"The address of the machine providing a time server, "
- "as a dotted quad (x.x.x.x)", DEFAULT_ADDRESS, G_PARAM_READWRITE));
+ "as a dotted quad (x.x.x.x)", DEFAULT_ADDRESS,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_PORT,
g_param_spec_int ("port", "port",
"The port on which the remote server is listening", 0, G_MAXUINT16,
- DEFAULT_PORT, G_PARAM_READWRITE));
+ DEFAULT_PORT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
static void
WSACleanup ();
}
#endif
+ self->priv = GST_NET_CLIENT_CLOCK_GET_PRIVATE (self);
self->port = DEFAULT_PORT;
self->address = g_strdup (DEFAULT_ADDRESS);
clock->timeout = DEFAULT_TIMEOUT;
- self->sock = -1;
+ self->priv->sock.fd = -1;
self->thread = NULL;
self->servaddr = NULL;
-
- READ_SOCKET (self) = -1;
- WRITE_SOCKET (self) = -1;
}
static void
g_assert (self->thread == NULL);
}
- if (READ_SOCKET (self) != -1) {
- close (READ_SOCKET (self));
- close (WRITE_SOCKET (self));
- READ_SOCKET (self) = -1;
- WRITE_SOCKET (self) = -1;
+ if (self->priv->fdset) {
+ gst_poll_free (self->priv->fdset);
+ self->priv->fdset = NULL;
}
g_free (self->address);
}
static gint
-gst_net_client_clock_do_select (GstNetClientClock * self, fd_set * readfds)
+gst_net_client_clock_do_select (GstNetClientClock * self)
{
- gint max_sock;
- gint ret;
-
while (TRUE) {
- FD_ZERO (readfds);
- FD_SET (self->sock, readfds);
- FD_SET (READ_SOCKET (self), readfds);
- max_sock = MAX (self->sock, READ_SOCKET (self));
+ GstClockTime diff;
+ gint ret;
GST_LOG_OBJECT (self, "doing select");
- {
- GstClockTime diff;
- GTimeVal tv, *ptv = &tv;
- diff = gst_clock_get_internal_time (GST_CLOCK (self));
- GST_TIME_TO_TIMEVAL (self->current_timeout, tv);
+ diff = gst_clock_get_internal_time (GST_CLOCK (self));
+ ret = gst_poll_wait (self->priv->fdset, self->current_timeout);
+ diff = gst_clock_get_internal_time (GST_CLOCK (self)) - diff;
-#ifdef G_OS_WIN32
- if (((max_sock + 1) != READ_SOCKET (self)) ||
- ((max_sock + 1) != WRITE_SOCKET (self))) {
- ret =
- select (max_sock + 1, readfds, NULL, NULL, (struct timeval *) ptv);
- } else {
- ret = 1;
- }
-#else
- ret = select (max_sock + 1, readfds, NULL, NULL, (struct timeval *) ptv);
-#endif
- diff = gst_clock_get_internal_time (GST_CLOCK (self)) - diff;
+ if (diff > self->current_timeout)
+ self->current_timeout = 0;
+ else
+ self->current_timeout -= diff;
- if (diff > self->current_timeout)
- self->current_timeout = 0;
- else
- self->current_timeout -= diff;
- }
GST_LOG_OBJECT (self, "select returned %d", ret);
- if (ret < 0) {
+ if (ret < 0 && errno != EBUSY) {
if (errno != EAGAIN && errno != EINTR)
goto select_error;
else
GstNetClientClock *self = data;
struct sockaddr_in tmpaddr;
socklen_t len;
- fd_set read_fds;
GstNetTimePacket *packet;
gint ret;
GstClock *clock = data;
while (TRUE) {
- ret = gst_net_client_clock_do_select (self, &read_fds);
-
- if (FD_ISSET (READ_SOCKET (self), &read_fds)) {
- /* got control message */
- while (TRUE) {
- gchar command;
- int res;
-
- READ_COMMAND (self, command, res);
- if (res <= 0) {
- GST_LOG_OBJECT (self, "no more commands");
- break;
- }
-
- GST_LOG_OBJECT (self, "control message: '%c'", command);
- switch (command) {
- case CONTROL_STOP:
- /* break out of the select loop */
- GST_LOG_OBJECT (self, "stop");
- goto stopped;
- default:
- GST_WARNING_OBJECT (self, "unknown message: '%c'", command);
- g_warning ("netclientclock: unknown control message received");
- continue;
- }
-
- g_assert_not_reached ();
- }
+ ret = gst_net_client_clock_do_select (self);
- continue;
+ if (ret < 0 && errno == EBUSY) {
+ GST_LOG_OBJECT (self, "stop");
+ goto stopped;
} else if (ret == 0) {
/* timed out, let's send another packet */
GST_DEBUG_OBJECT (self, "timed out");
GST_DEBUG_OBJECT (self, "sending packet, local time = %" GST_TIME_FORMAT,
GST_TIME_ARGS (packet->local_time));
- gst_net_time_packet_send (packet, self->sock,
+ gst_net_time_packet_send (packet, self->priv->sock.fd,
(struct sockaddr *) self->servaddr, sizeof (struct sockaddr_in));
g_free (packet);
/* reset timeout */
self->current_timeout = clock->timeout;
continue;
- } else if (FD_ISSET (self->sock, &read_fds)) {
+ } else if (gst_poll_fd_can_read (self->priv->fdset, &self->priv->sock)) {
/* got data in */
GstClockTime new_local = gst_clock_get_internal_time (GST_CLOCK (self));
len = sizeof (struct sockaddr);
- packet = gst_net_time_packet_receive (self->sock,
+ packet = gst_net_time_packet_receive (self->priv->sock.fd,
(struct sockaddr *) &tmpaddr, &len);
if (!packet)
struct sockaddr_in servaddr, myaddr;
socklen_t len;
gint ret;
- GError *error;
+ GError *error = NULL;
g_return_val_if_fail (self->address != NULL, FALSE);
g_return_val_if_fail (self->servaddr == NULL, FALSE);
if ((ret = socket (AF_INET, SOCK_DGRAM, 0)) < 0)
goto no_socket;
- self->sock = ret;
+ self->priv->sock.fd = ret;
len = sizeof (myaddr);
- ret = getsockname (self->sock, (struct sockaddr *) &myaddr, &len);
+ ret = getsockname (self->priv->sock.fd, (struct sockaddr *) &myaddr, &len);
if (ret < 0)
goto getsockname_error;
GST_DEBUG_OBJECT (self, "will communicate with %s:%d", self->address,
self->port);
+ gst_poll_add_fd (self->priv->fdset, &self->priv->sock);
+ gst_poll_fd_ctl_read (self->priv->fdset, &self->priv->sock, TRUE);
+
+#if !GLIB_CHECK_VERSION (2, 31, 0)
self->thread = g_thread_create (gst_net_client_clock_thread, self, TRUE,
&error);
- if (!self->thread)
+#else
+ self->thread = g_thread_try_new ("GstNetClientClock",
+ gst_net_client_clock_thread, self, &error);
+#endif
+
+ if (error != NULL)
goto no_thread;
return TRUE;
{
GST_ERROR_OBJECT (self, "getsockname failed %d: %s (%d)", ret,
g_strerror (errno), errno);
- close (self->sock);
- self->sock = -1;
+ close (self->priv->sock.fd);
+ self->priv->sock.fd = -1;
return FALSE;
}
bad_address:
{
GST_ERROR_OBJECT (self, "inet_aton failed %d: %s (%d)", ret,
g_strerror (errno), errno);
- close (self->sock);
- self->sock = -1;
+ close (self->priv->sock.fd);
+ self->priv->sock.fd = -1;
return FALSE;
}
no_thread:
{
GST_ERROR_OBJECT (self, "could not create thread: %s", error->message);
- close (self->sock);
- self->sock = -1;
+ gst_poll_remove_fd (self->priv->fdset, &self->priv->sock);
+ close (self->priv->sock.fd);
+ self->priv->sock.fd = -1;
g_free (self->servaddr);
self->servaddr = NULL;
g_error_free (error);
static void
gst_net_client_clock_stop (GstNetClientClock * self)
{
- SEND_COMMAND (self, CONTROL_STOP);
+ gst_poll_set_flushing (self->priv->fdset, TRUE);
g_thread_join (self->thread);
self->thread = NULL;
- if (self->sock != -1) {
- close (self->sock);
- self->sock = -1;
+ if (self->priv->sock.fd != -1) {
+ gst_poll_remove_fd (self->priv->fdset, &self->priv->sock);
+ close (self->priv->sock.fd);
+ self->priv->sock.fd = -1;
}
}
* @base_time: initial time of the clock
*
* Create a new #GstNetClientClock that will report the time
- * provided by the #GstNetClockProvider on @remote_address and
+ * provided by the #GstNetTimeProvider on @remote_address and
* @remote_port.
*
* Returns: a new #GstClock that receives a time from the remote
{
GstNetClientClock *ret;
GstClockTime internal;
- gint iret;
g_return_val_if_fail (remote_address != NULL, NULL);
g_return_val_if_fail (remote_port > 0, NULL);
{
GstClockTime now = gst_clock_get_time (GST_CLOCK (ret));
- if (now < base_time || now > base_time + GST_SECOND)
+ if (GST_CLOCK_DIFF (now, base_time) > 0 ||
+ GST_CLOCK_DIFF (now, base_time + GST_SECOND) < 0) {
g_warning ("unable to set the base time, expect sync problems!");
+ }
}
-#ifdef G_OS_WIN32
- GST_DEBUG_OBJECT (ret, "creating pipe");
- if ((iret = _pipe (CONTROL_SOCKETS (ret), 4096, _O_BINARY)) < 0)
- goto no_socket_pair;
-#else
- GST_DEBUG_OBJECT (ret, "creating socket pair");
- if ((iret = socketpair (PF_UNIX, SOCK_STREAM, 0, CONTROL_SOCKETS (ret))) < 0)
- goto no_socket_pair;
-
- fcntl (READ_SOCKET (ret), F_SETFL, O_NONBLOCK);
- fcntl (WRITE_SOCKET (ret), F_SETFL, O_NONBLOCK);
-#endif
+ if ((ret->priv->fdset = gst_poll_new (TRUE)) == NULL)
+ goto no_fdset;
if (!gst_net_client_clock_start (ret))
goto failed_start;
/* all systems go, cap'n */
return (GstClock *) ret;
-no_socket_pair:
+no_fdset:
{
- GST_ERROR_OBJECT (ret, "no socket pair %d: %s (%d)", iret,
+ GST_ERROR_OBJECT (ret, "could not create an fdset: %s (%d)",
g_strerror (errno), errno);
gst_object_unref (ret);
return NULL;