--- /dev/null
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ * Copyright (C) <2004> Thomas Vander Stichele <thomas at apestaart dot org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/**
+ * SECTION:element-tcpserversink
+ * @see_also: #multifdsink
+ *
+ * <refsect2>
+ * <title>Example launch line</title>
+ * |[
+ * # server:
+ * gst-launch fdsrc fd=1 ! tcpserversink protocol=none port=3000
+ * # client:
+ * gst-launch tcpclientsrc protocol=none port=3000 ! fdsink fd=2
+ * ]|
+ * </refsect2>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include <gst/gst-i18n-plugin.h>
+#include <string.h> /* memset */
+
+#include <sys/ioctl.h>
+
+#ifdef HAVE_FIONREAD_IN_SYS_FILIO
+#include <sys/filio.h>
+#endif
+
+#include "gsttcp.h"
+#include "gsttcpserversink.h"
+#include "gsttcp-marshal.h"
+
+#define TCP_BACKLOG 5
+
+GST_DEBUG_CATEGORY_STATIC (tcpserversink_debug);
+#define GST_CAT_DEFAULT (tcpserversink_debug)
+
+enum
+{
+ ARG_0,
+ ARG_HOST,
+ ARG_PORT,
+};
+
+static void gst_tcp_server_sink_finalize (GObject * gobject);
+
+static gboolean gst_tcp_server_sink_handle_wait (GstMultiFdSink * sink,
+ GstPoll * set);
+static gboolean gst_tcp_server_sink_init_send (GstMultiFdSink * this);
+static gboolean gst_tcp_server_sink_close (GstMultiFdSink * this);
+static void gst_tcp_server_sink_removed (GstMultiFdSink * sink, int fd);
+
+static void gst_tcp_server_sink_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_tcp_server_sink_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+
+
+GST_BOILERPLATE (GstTCPServerSink, gst_tcp_server_sink, GstMultiFdSink,
+ GST_TYPE_MULTI_FD_SINK);
+
+
+static void
+gst_tcp_server_sink_base_init (gpointer g_class)
+{
+ GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
+
+ gst_element_class_set_details_simple (element_class,
+ "TCP server sink", "Sink/Network",
+ "Send data as a server over the network via TCP",
+ "Thomas Vander Stichele <thomas at apestaart dot org>");
+}
+
+static void
+gst_tcp_server_sink_class_init (GstTCPServerSinkClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstMultiFdSinkClass *gstmultifdsink_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstmultifdsink_class = (GstMultiFdSinkClass *) klass;
+
+ gobject_class->set_property = gst_tcp_server_sink_set_property;
+ gobject_class->get_property = gst_tcp_server_sink_get_property;
+ gobject_class->finalize = gst_tcp_server_sink_finalize;
+
+ g_object_class_install_property (gobject_class, ARG_HOST,
+ g_param_spec_string ("host", "host", "The host/IP to send the packets to",
+ TCP_DEFAULT_HOST, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (gobject_class, ARG_PORT,
+ g_param_spec_int ("port", "port", "The port to send the packets to",
+ 0, TCP_HIGHEST_PORT, TCP_DEFAULT_PORT,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ gstmultifdsink_class->init = gst_tcp_server_sink_init_send;
+ gstmultifdsink_class->wait = gst_tcp_server_sink_handle_wait;
+ gstmultifdsink_class->close = gst_tcp_server_sink_close;
+ gstmultifdsink_class->removed = gst_tcp_server_sink_removed;
+
+ GST_DEBUG_CATEGORY_INIT (tcpserversink_debug, "tcpserversink", 0, "TCP sink");
+}
+
+static void
+gst_tcp_server_sink_init (GstTCPServerSink * this,
+ GstTCPServerSinkClass * klass)
+{
+ this->server_port = TCP_DEFAULT_PORT;
+ /* should support as minimum 576 for IPV4 and 1500 for IPV6 */
+ /* this->mtu = 1500; */
+ this->host = g_strdup (TCP_DEFAULT_HOST);
+
+ this->server_sock.fd = -1;
+}
+
+static void
+gst_tcp_server_sink_finalize (GObject * gobject)
+{
+ GstTCPServerSink *this = GST_TCP_SERVER_SINK (gobject);
+
+ g_free (this->host);
+
+ G_OBJECT_CLASS (parent_class)->finalize (gobject);
+}
+
+/* handle a read request on the server,
+ * which indicates a new client connection */
+static gboolean
+gst_tcp_server_sink_handle_server_read (GstTCPServerSink * sink)
+{
+ /* new client */
+ int client_sock_fd;
+ struct sockaddr_in client_address;
+ socklen_t client_address_len;
+
+ /* For some stupid reason, client_address and client_address_len has to be
+ * zeroed */
+ memset (&client_address, 0, sizeof (client_address));
+ client_address_len = 0;
+
+ client_sock_fd =
+ accept (sink->server_sock.fd, (struct sockaddr *) &client_address,
+ &client_address_len);
+ if (client_sock_fd == -1)
+ goto accept_failed;
+
+ gst_multi_fd_sink_add (GST_MULTI_FD_SINK (sink), client_sock_fd);
+
+ GST_DEBUG_OBJECT (sink, "added new client ip %s with fd %d",
+ inet_ntoa (client_address.sin_addr), client_sock_fd);
+
+ return TRUE;
+
+ /* ERRORS */
+accept_failed:
+ {
+ GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE, (NULL),
+ ("Could not accept client on server socket %d: %s (%d)",
+ sink->server_sock.fd, g_strerror (errno), errno));
+ return FALSE;
+ }
+}
+
+static void
+gst_tcp_server_sink_removed (GstMultiFdSink * sink, int fd)
+{
+#ifndef GST_DISABLE_GST_DEBUG
+ GstTCPServerSink *this = GST_TCP_SERVER_SINK (sink);
+#endif
+
+ GST_LOG_OBJECT (this, "closing fd %d", fd);
+ if (close (fd) < 0) {
+ GST_WARNING_OBJECT (this, "error closing fd %d: %s", fd,
+ g_strerror (errno));
+ }
+}
+
+static gboolean
+gst_tcp_server_sink_handle_wait (GstMultiFdSink * sink, GstPoll * set)
+{
+ GstTCPServerSink *this = GST_TCP_SERVER_SINK (sink);
+
+ if (gst_poll_fd_can_read (set, &this->server_sock)) {
+ /* handle new client connection on server socket */
+ if (!gst_tcp_server_sink_handle_server_read (this))
+ goto connection_failed;
+ }
+ return TRUE;
+
+ /* ERRORS */
+connection_failed:
+ {
+ GST_ELEMENT_ERROR (this, RESOURCE, READ, (NULL),
+ ("client connection failed: %s", g_strerror (errno)));
+ return FALSE;
+ }
+}
+
+static void
+gst_tcp_server_sink_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstTCPServerSink *sink;
+
+ g_return_if_fail (GST_IS_TCP_SERVER_SINK (object));
+ sink = GST_TCP_SERVER_SINK (object);
+
+ switch (prop_id) {
+ case ARG_HOST:
+ if (!g_value_get_string (value)) {
+ g_warning ("host property cannot be NULL");
+ break;
+ }
+ g_free (sink->host);
+ sink->host = g_strdup (g_value_get_string (value));
+ break;
+ case ARG_PORT:
+ sink->server_port = g_value_get_int (value);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_tcp_server_sink_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ GstTCPServerSink *sink;
+
+ g_return_if_fail (GST_IS_TCP_SERVER_SINK (object));
+ sink = GST_TCP_SERVER_SINK (object);
+
+ switch (prop_id) {
+ case ARG_HOST:
+ g_value_set_string (value, sink->host);
+ break;
+ case ARG_PORT:
+ g_value_set_int (value, sink->server_port);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+
+/* create a socket for sending to remote machine */
+static gboolean
+gst_tcp_server_sink_init_send (GstMultiFdSink * parent)
+{
+ int ret;
+ GstTCPServerSink *this = GST_TCP_SERVER_SINK (parent);
+
+ /* create sending server socket */
+ if ((this->server_sock.fd = socket (AF_INET, SOCK_STREAM, 0)) == -1)
+ goto no_socket;
+
+ GST_DEBUG_OBJECT (this, "opened sending server socket with fd %d",
+ this->server_sock.fd);
+
+ /* make address reusable */
+ ret = 1;
+ if (setsockopt (this->server_sock.fd, SOL_SOCKET, SO_REUSEADDR,
+ (void *) &ret, sizeof (ret)) < 0)
+ goto reuse_failed;
+
+ /* keep connection alive; avoids SIGPIPE during write */
+ ret = 1;
+ if (setsockopt (this->server_sock.fd, SOL_SOCKET, SO_KEEPALIVE,
+ (void *) &ret, sizeof (ret)) < 0)
+ goto keepalive_failed;
+
+ /* name the socket */
+ memset (&this->server_sin, 0, sizeof (this->server_sin));
+ this->server_sin.sin_family = AF_INET; /* network socket */
+ this->server_sin.sin_port = htons (this->server_port); /* on port */
+ this->server_sin.sin_addr.s_addr = htonl (INADDR_ANY); /* for hosts */
+
+ /* bind it */
+ GST_DEBUG_OBJECT (this, "binding server socket to address");
+ ret = bind (this->server_sock.fd, (struct sockaddr *) &this->server_sin,
+ sizeof (this->server_sin));
+ if (ret)
+ goto bind_failed;
+
+ /* set the server socket to nonblocking */
+ fcntl (this->server_sock.fd, F_SETFL, O_NONBLOCK);
+
+ GST_DEBUG_OBJECT (this, "listening on server socket %d with queue of %d",
+ this->server_sock.fd, TCP_BACKLOG);
+ if (listen (this->server_sock.fd, TCP_BACKLOG) == -1)
+ goto listen_failed;
+
+ GST_DEBUG_OBJECT (this,
+ "listened on server socket %d, returning from connection setup",
+ this->server_sock.fd);
+
+ gst_poll_add_fd (parent->fdset, &this->server_sock);
+ gst_poll_fd_ctl_read (parent->fdset, &this->server_sock, TRUE);
+
+ return TRUE;
+
+ /* ERRORS */
+no_socket:
+ {
+ GST_ELEMENT_ERROR (this, RESOURCE, OPEN_WRITE, (NULL), GST_ERROR_SYSTEM);
+ return FALSE;
+ }
+reuse_failed:
+ {
+ gst_tcp_socket_close (&this->server_sock);
+ GST_ELEMENT_ERROR (this, RESOURCE, SETTINGS, (NULL),
+ ("Could not setsockopt: %s", g_strerror (errno)));
+ return FALSE;
+ }
+keepalive_failed:
+ {
+ gst_tcp_socket_close (&this->server_sock);
+ GST_ELEMENT_ERROR (this, RESOURCE, SETTINGS, (NULL),
+ ("Could not setsockopt: %s", g_strerror (errno)));
+ return FALSE;
+ }
+listen_failed:
+ {
+ gst_tcp_socket_close (&this->server_sock);
+ GST_ELEMENT_ERROR (this, RESOURCE, OPEN_READ, (NULL),
+ ("Could not listen on server socket: %s", g_strerror (errno)));
+ return FALSE;
+ }
+bind_failed:
+ {
+ gst_tcp_socket_close (&this->server_sock);
+ switch (errno) {
+ default:
+ GST_ELEMENT_ERROR (this, RESOURCE, OPEN_READ, (NULL),
+ ("bind on port %d failed: %s", this->server_port,
+ g_strerror (errno)));
+ break;
+ }
+ return FALSE;
+ }
+}
+
+static gboolean
+gst_tcp_server_sink_close (GstMultiFdSink * parent)
+{
+ GstTCPServerSink *this = GST_TCP_SERVER_SINK (parent);
+
+ if (this->server_sock.fd != -1) {
+ gst_poll_remove_fd (parent->fdset, &this->server_sock);
+
+ close (this->server_sock.fd);
+ this->server_sock.fd = -1;
+ }
+ return TRUE;
+}
projects / mafwsubrenderer / blobdiff