mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
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1175 lines
32 KiB
C
1175 lines
32 KiB
C
/* Pinos
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* Copyright (C) 2015 Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <sys/socket.h>
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#include <string.h>
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#include <gst/gst.h>
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#include <gio/gio.h>
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#include <gio/gunixfdlist.h>
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#include <gio/gunixfdmessage.h>
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#include "pinos/client/pinos.h"
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#include "pinos/client/enumtypes.h"
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#include "pinos/client/private.h"
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#include "pinos/client/port.h"
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#include "pinos/client/node.h"
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#define PINOS_PORT_GET_PRIVATE(obj) \
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(G_TYPE_INSTANCE_GET_PRIVATE ((obj), PINOS_TYPE_PORT, PinosPortPrivate))
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#if 0
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#define PINOS_DEBUG_TRANSPORT(format,args...) g_debug(format,##args)
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#else
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#define PINOS_DEBUG_TRANSPORT(format,args...)
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#endif
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#define MAX_BUFFER_SIZE 1024
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#define MAX_FDS 16
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struct _PinosPortPrivate
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{
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PinosNode *node;
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gchar *name;
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GSocket *sockets[2];
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PinosDirection direction;
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GBytes *possible_formats;
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GBytes *format;
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PinosProperties *properties;
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GSource *socket_source;
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PinosBuffer recv_buffer;
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guint8 recv_data[MAX_BUFFER_SIZE];
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gint recv_fds[MAX_FDS];
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guint8 send_data[MAX_BUFFER_SIZE];
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gint send_fds[MAX_FDS];
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PinosBuffer *buffer;
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PinosPort *peers[16];
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gint n_peers;
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PinosReceivedBufferCallback received_buffer_cb;
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gpointer received_buffer_data;
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GDestroyNotify received_buffer_notify;
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};
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G_DEFINE_ABSTRACT_TYPE (PinosPort, pinos_port, G_TYPE_OBJECT);
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enum
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{
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PROP_0,
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PROP_NODE,
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PROP_SOCKET,
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PROP_MAIN_CONTEXT,
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PROP_NAME,
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PROP_DIRECTION,
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PROP_POSSIBLE_FORMATS,
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PROP_FORMAT,
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PROP_PROPERTIES,
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};
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enum
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{
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SIGNAL_FORMAT_REQUEST,
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SIGNAL_REMOVE,
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SIGNAL_LINKED,
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SIGNAL_UNLINKED,
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LAST_SIGNAL
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};
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static guint signals[LAST_SIGNAL] = { 0 };
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void
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pinos_port_set_received_buffer_cb (PinosPort *port,
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PinosReceivedBufferCallback cb,
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gpointer user_data,
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GDestroyNotify notify)
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{
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PinosPortPrivate *priv;
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g_return_if_fail (PINOS_IS_PORT (port));
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priv = port->priv;
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g_debug ("port %p: set callback", port);
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if (priv->received_buffer_notify)
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priv->received_buffer_notify (priv->received_buffer_data);;
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priv->received_buffer_cb = cb;
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priv->received_buffer_data = user_data;
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priv->received_buffer_notify = notify;
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}
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/**
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* pinos_port_remove:
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* @port: a #PinosPort
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*
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* Trigger removal of @port
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*/
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void
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pinos_port_remove (PinosPort *port)
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{
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g_return_if_fail (PINOS_IS_PORT (port));
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g_debug ("port %p: remove", port);
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g_signal_emit (port, signals[SIGNAL_REMOVE], 0, NULL);
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}
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/**
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* pinos_port_get_node:
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* @port: a #PinosPort
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*
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* Get the parent #PinosNode of @port
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*
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* Returns: the parent node or %NULL
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*/
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PinosNode *
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pinos_port_get_node (PinosPort *port)
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{
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PinosPortPrivate *priv;
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g_return_val_if_fail (PINOS_IS_PORT (port), NULL);
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priv = port->priv;
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return priv->node;
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}
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/**
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* pinos_port_get_socket:
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* @port: a #PinosPort
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*
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* Get the socket of @port
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*
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* Returns: the socket or %NULL
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*/
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GSocket *
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pinos_port_get_socket (PinosPort *port)
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{
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PinosPortPrivate *priv;
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g_return_val_if_fail (PINOS_IS_PORT (port), NULL);
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priv = port->priv;
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return priv->sockets[0];
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}
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/**
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* pinos_port_get_name:
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* @port: a #PinosPort
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*
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* Get the name of @port
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*
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* Returns: the name or %NULL
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*/
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const gchar *
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pinos_port_get_name (PinosPort *port)
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{
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PinosPortPrivate *priv;
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g_return_val_if_fail (PINOS_IS_PORT (port), NULL);
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priv = port->priv;
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return priv->name;
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}
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/**
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* pinos_port_get_direction:
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* @port: a #PinosPort
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*
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* Get the direction of @port
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*
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* Returns: the direction or %NULL
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*/
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PinosDirection
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pinos_port_get_direction (PinosPort *port)
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{
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PinosPortPrivate *priv;
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g_return_val_if_fail (PINOS_IS_PORT (port), PINOS_DIRECTION_INVALID);
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priv = port->priv;
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return priv->direction;
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}
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/**
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* pinos_port_get_possible_formats:
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* @port: a #PinosPort
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*
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* Get the possible formats of @port
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*
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* Returns: the possible formats or %NULL
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*/
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GBytes *
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pinos_port_get_possible_formats (PinosPort *port)
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{
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PinosPortPrivate *priv;
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g_return_val_if_fail (PINOS_IS_PORT (port), NULL);
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priv = port->priv;
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g_signal_emit (port, signals[SIGNAL_FORMAT_REQUEST], 0, NULL);
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return priv->possible_formats;
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}
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/**
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* pinos_port_get_format:
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* @port: a #PinosPort
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*
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* Get the format of @port
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*
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* Returns: the format or %NULL
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*/
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GBytes *
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pinos_port_get_format (PinosPort *port)
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{
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PinosPortPrivate *priv;
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g_return_val_if_fail (PINOS_IS_PORT (port), NULL);
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priv = port->priv;
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return priv->format;
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}
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/**
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* pinos_port_get_properties:
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* @port: a #PinosPort
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*
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* Get the properties of @port
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*
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* Returns: the properties or %NULL
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*/
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PinosProperties *
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pinos_port_get_properties (PinosPort *port)
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{
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PinosPortPrivate *priv;
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g_return_val_if_fail (PINOS_IS_PORT (port), NULL);
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priv = port->priv;
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return priv->properties;
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}
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/**
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* pinos_port_filter_formats:
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* @port: a #PinosPort
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* @filter: a #GBytes
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* @error: a #GError or %NULL
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*
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* Get all the currently supported formats for @port and filter the
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* results with @filter.
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*
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* Returns: the list of supported format. If %NULL is returned, @error will
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* be set.
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*/
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GBytes *
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pinos_port_filter_formats (PinosPort *port,
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GBytes *filter,
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GError **error)
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{
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GstCaps *tmp, *caps, *cfilter;
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gchar *str;
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PinosPortPrivate *priv;
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GBytes *res;
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g_return_val_if_fail (PINOS_IS_PORT (port), NULL);
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priv = port->priv;
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if (filter) {
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cfilter = gst_caps_from_string (g_bytes_get_data (filter, NULL));
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if (cfilter == NULL)
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goto invalid_filter;
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} else {
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cfilter = NULL;
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}
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g_signal_emit (port, signals[SIGNAL_FORMAT_REQUEST], 0, NULL);
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if (priv->possible_formats)
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caps = gst_caps_from_string (g_bytes_get_data (priv->possible_formats, NULL));
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else
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caps = gst_caps_new_any ();
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if (caps && cfilter) {
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tmp = gst_caps_intersect_full (caps, cfilter, GST_CAPS_INTERSECT_FIRST);
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gst_caps_take (&caps, tmp);
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}
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g_clear_pointer (&cfilter, gst_caps_unref);
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if (caps == NULL || gst_caps_is_empty (caps))
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goto no_format;
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str = gst_caps_to_string (caps);
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gst_caps_unref (caps);
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res = g_bytes_new_take (str, strlen (str) + 1);
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if (priv->direction == PINOS_DIRECTION_OUTPUT) {
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gint i;
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for (i = 0; i < priv->n_peers; i++) {
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PinosPort *peer = priv->peers[i];
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if (peer == NULL)
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continue;
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res = pinos_port_filter_formats (peer, res, error);
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}
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}
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return res;
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invalid_filter:
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{
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g_set_error (error,
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G_IO_ERROR,
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G_IO_ERROR_INVALID_ARGUMENT,
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"Invalid filter received");
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return NULL;
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}
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no_format:
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{
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g_set_error (error,
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G_IO_ERROR,
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G_IO_ERROR_NOT_FOUND,
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"No compatible format found");
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if (cfilter)
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gst_caps_unref (cfilter);
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if (caps)
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gst_caps_unref (caps);
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return NULL;
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}
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}
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/**
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* pinos_port_link:
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* @source: a source #PinosPort
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* @destination: a destination #PinosPort
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*
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* Link two ports together.
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*
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* Returns: %TRUE if ports could be linked.
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*/
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gboolean
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pinos_port_link (PinosPort *source, PinosPort *destination)
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{
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g_return_val_if_fail (PINOS_IS_PORT (source), FALSE);
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g_return_val_if_fail (PINOS_IS_PORT (destination), FALSE);
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g_return_val_if_fail (source->priv->direction != destination->priv->direction, FALSE);
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if (source->priv->direction != PINOS_DIRECTION_OUTPUT) {
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PinosPort *tmp;
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tmp = source;
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source = destination;
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destination = tmp;
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}
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source->priv->peers[source->priv->n_peers++] = destination;
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destination->priv->peers[destination->priv->n_peers++] = source;
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g_debug ("port %p: linked to %p", source, destination);
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g_signal_emit (source, signals[SIGNAL_LINKED], 0, destination);
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g_signal_emit (destination, signals[SIGNAL_LINKED], 0, source);
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return TRUE;
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}
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/**
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* pinos_port_unlink:
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* @source: a source #PinosPort
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* @destination: a destination #PinosPort
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*
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* Link two ports together.
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*
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* Returns: %TRUE if ports could be linked.
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*/
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gboolean
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pinos_port_unlink (PinosPort *source, PinosPort *destination)
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{
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gint i;
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g_return_val_if_fail (PINOS_IS_PORT (source), FALSE);
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g_return_val_if_fail (PINOS_IS_PORT (destination), FALSE);
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for (i = 0; i < source->priv->n_peers; i++) {
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if (source->priv->peers[i] == destination)
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source->priv->peers[i] = NULL;
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}
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for (i = 0; i < destination->priv->n_peers; i++) {
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if (destination->priv->peers[i] == source)
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destination->priv->peers[i] = NULL;
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}
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g_debug ("port %p: unlinked from %p", source, destination);
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g_signal_emit (source, signals[SIGNAL_UNLINKED], 0, destination);
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g_signal_emit (destination, signals[SIGNAL_UNLINKED], 0, source);
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return TRUE;
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}
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static void
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pinos_port_unlink_all (PinosPort *port)
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{
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gint i;
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for (i = 0; i < port->priv->n_peers; i++) {
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PinosPort *peer = port->priv->peers[i];
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if (peer == NULL)
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continue;
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if (peer->priv->peers[i] == port)
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peer->priv->peers[i] = NULL;
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port->priv->peers[i] = NULL;
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peer->priv->n_peers--;
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g_signal_emit (port, signals[SIGNAL_UNLINKED], 0, peer);
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g_signal_emit (peer, signals[SIGNAL_UNLINKED], 0, port);
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}
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port->priv->n_peers = 0;
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}
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/**
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* pinos_port_get_n_links:
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* @port: a #PinosPort
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*
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* Get the number of links on this port
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*
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* Returns: the number of links
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*/
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gint
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pinos_port_get_n_links (PinosPort *port)
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{
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g_return_val_if_fail (PINOS_IS_PORT (port), -1);
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return port->priv->n_peers;
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}
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static PinosBuffer *
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read_buffer (PinosPort *port,
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GError **error)
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{
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PinosPortPrivate *priv = port->priv;
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gssize len;
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GInputVector ivec;
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PinosStackHeader *hdr;
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GSocketControlMessage **messages = NULL;
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PinosStackBuffer *sb = (PinosStackBuffer *) &priv->recv_buffer;
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gint num_messages = 0;
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gint flags = 0;
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gsize need;
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gint i;
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g_assert (sb->refcount == 0);
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sb->data = priv->recv_data;
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sb->max_size = MAX_BUFFER_SIZE;
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sb->size = 0;
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sb->free_data = NULL;
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sb->fds = priv->recv_fds;
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sb->max_fds = MAX_FDS;
|
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sb->n_fds = 0;
|
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sb->free_fds = NULL;
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|
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hdr = sb->data;
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|
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/* read header first */
|
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ivec.buffer = hdr;
|
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ivec.size = sizeof (PinosStackHeader);
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|
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len = g_socket_receive_message (priv->sockets[0],
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NULL,
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&ivec,
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1,
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&messages,
|
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&num_messages,
|
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&flags,
|
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NULL,
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error);
|
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if (len == -1)
|
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return NULL;
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|
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g_assert (len == sizeof (PinosStackHeader));
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|
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/* now we know the total length */
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need = sizeof (PinosStackHeader) + hdr->length;
|
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|
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if (sb->max_size < need) {
|
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g_warning ("port %p: realloc receive memory %" G_GSIZE_FORMAT" -> %" G_GSIZE_FORMAT, port, sb->max_size, need);
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sb->max_size = need;
|
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hdr = sb->data = sb->free_data = g_realloc (sb->free_data, need);
|
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}
|
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sb->size = need;
|
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|
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if (hdr->length > 0) {
|
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/* read data */
|
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len = g_socket_receive (priv->sockets[0],
|
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(gchar *)sb->data + sizeof (PinosStackHeader),
|
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hdr->length,
|
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NULL,
|
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error);
|
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if (len == -1)
|
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return NULL;
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|
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g_assert (len == hdr->length);
|
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}
|
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|
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if (sb->max_fds < num_messages) {
|
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g_warning ("port %p: realloc receive fds %d -> %d", port, sb->max_fds, num_messages);
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sb->max_fds = num_messages;
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sb->fds = sb->free_fds = g_realloc (sb->free_fds, num_messages * sizeof (int));
|
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}
|
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|
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/* handle control messages */
|
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for (i = 0; i < num_messages; i++) {
|
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GSocketControlMessage *msg = messages[i];
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gint *fds, n_fds, j;
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|
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if (g_socket_control_message_get_msg_type (msg) != SCM_RIGHTS)
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continue;
|
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|
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fds = g_unix_fd_message_steal_fds (G_UNIX_FD_MESSAGE (msg), &n_fds);
|
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for (j = 0; j < n_fds; j++)
|
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sb->fds[i] = fds[i];
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sb->n_fds = n_fds;
|
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g_free (fds);
|
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g_object_unref (msg);
|
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}
|
|
g_free (messages);
|
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|
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sb->refcount = 1;
|
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sb->magic = PSB_MAGIC;
|
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|
|
PINOS_DEBUG_TRANSPORT ("port %p: buffer %p init", &priv->recv_buffer, sb);
|
|
|
|
return &priv->recv_buffer;
|
|
}
|
|
|
|
|
|
static gboolean
|
|
write_buffer (GSocket *socket,
|
|
PinosBuffer *buffer,
|
|
GError **error)
|
|
{
|
|
gssize len;
|
|
PinosStackBuffer *sb = (PinosStackBuffer *) buffer;
|
|
GOutputVector ovec[1];
|
|
GSocketControlMessage *msg = NULL;
|
|
gint n_msg, i, flags = 0;
|
|
|
|
g_return_val_if_fail (buffer != NULL, FALSE);
|
|
|
|
ovec[0].buffer = sb->data;
|
|
ovec[0].size = sb->size;
|
|
|
|
if (sb->n_fds) {
|
|
msg = g_unix_fd_message_new ();
|
|
for (i = 0; i < sb->n_fds; i++) {
|
|
if (!g_unix_fd_message_append_fd (G_UNIX_FD_MESSAGE (msg), sb->fds[i], error))
|
|
goto append_failed;
|
|
}
|
|
n_msg = 1;
|
|
}
|
|
else {
|
|
n_msg = 0;
|
|
}
|
|
|
|
len = g_socket_send_message (socket,
|
|
NULL,
|
|
ovec,
|
|
1,
|
|
&msg,
|
|
n_msg,
|
|
flags,
|
|
NULL,
|
|
error);
|
|
g_clear_object (&msg);
|
|
|
|
if (len == -1)
|
|
goto send_error;
|
|
|
|
g_assert (len == (gssize) sb->size);
|
|
|
|
return TRUE;
|
|
|
|
append_failed:
|
|
{
|
|
g_warning ("failed to append fd: %s", error ? (*error)->message : "unknown reason" );
|
|
return FALSE;
|
|
}
|
|
send_error:
|
|
{
|
|
g_warning ("failed to send message: %s", error ? (*error)->message : "unknown reason" );
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
parse_control_buffer (PinosPort *port, PinosBuffer *buffer)
|
|
{
|
|
PinosPortPrivate *priv = port->priv;
|
|
PinosBufferIter it;
|
|
|
|
pinos_buffer_iter_init (&it, buffer);
|
|
while (pinos_buffer_iter_next (&it)) {
|
|
switch (pinos_buffer_iter_get_type (&it)) {
|
|
case PINOS_PACKET_TYPE_FORMAT_CHANGE:
|
|
{
|
|
PinosPacketFormatChange change;
|
|
|
|
if (!pinos_buffer_iter_parse_format_change (&it, &change))
|
|
continue;
|
|
|
|
if (priv->format)
|
|
g_bytes_unref (priv->format);
|
|
priv->format = g_bytes_new (change.format, strlen (change.format) + 1);
|
|
g_object_notify (G_OBJECT (port), "format");
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
pinos_port_receive_buffer (PinosPort *port,
|
|
PinosBuffer *buffer,
|
|
GError **error)
|
|
{
|
|
PinosPortPrivate *priv = port->priv;
|
|
gboolean res;
|
|
|
|
if (priv->buffer)
|
|
goto buffer_queued;
|
|
|
|
PINOS_DEBUG_TRANSPORT ("port %p: receive buffer %p", port, buffer);
|
|
if (pinos_buffer_get_flags (buffer) & PINOS_BUFFER_FLAG_CONTROL)
|
|
parse_control_buffer (port, buffer);
|
|
|
|
if (priv->sockets[0]) {
|
|
PINOS_DEBUG_TRANSPORT ("port %p: write buffer %p", port, buffer);
|
|
res = write_buffer (priv->sockets[0], buffer, error);
|
|
}
|
|
else {
|
|
res = TRUE;
|
|
priv->buffer = buffer;
|
|
if (priv->received_buffer_cb)
|
|
priv->received_buffer_cb (port, priv->received_buffer_data);
|
|
priv->buffer = NULL;
|
|
}
|
|
|
|
return res;
|
|
|
|
/* ERRORS */
|
|
buffer_queued:
|
|
{
|
|
g_set_error (error,
|
|
G_IO_ERROR,
|
|
G_IO_ERROR_NOT_FOUND,
|
|
"buffer was already queued on port");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
on_socket_condition (GSocket *socket,
|
|
GIOCondition condition,
|
|
gpointer user_data)
|
|
{
|
|
PinosPort *port = user_data;
|
|
PinosPortPrivate *priv = port->priv;
|
|
GError *error = NULL;
|
|
|
|
switch (condition) {
|
|
case G_IO_IN:
|
|
{
|
|
gint i;
|
|
PinosBuffer *buffer;
|
|
|
|
buffer = read_buffer (port, &error);
|
|
if (buffer == NULL) {
|
|
g_warning ("port %p: failed to read buffer: %s", port, error->message);
|
|
g_clear_error (&error);
|
|
return TRUE;
|
|
}
|
|
|
|
if (pinos_buffer_get_flags (buffer) & PINOS_BUFFER_FLAG_CONTROL)
|
|
parse_control_buffer (port, buffer);
|
|
|
|
PINOS_DEBUG_TRANSPORT ("port %p: read buffer %p", port, buffer);
|
|
|
|
if (priv->received_buffer_cb) {
|
|
PINOS_DEBUG_TRANSPORT ("port %p: notify buffer %p", port, buffer);
|
|
priv->buffer = buffer;
|
|
priv->received_buffer_cb (port, priv->received_buffer_data);
|
|
priv->buffer = NULL;
|
|
}
|
|
PINOS_DEBUG_TRANSPORT ("port %p: send to peer buffer %p", port, buffer);
|
|
for (i = 0; i < priv->n_peers; i++) {
|
|
PinosPort *peer = priv->peers[i];
|
|
if (peer == NULL)
|
|
continue;
|
|
|
|
if (!pinos_port_receive_buffer (peer, buffer, &error)) {
|
|
g_warning ("peer %p: failed to receive buffer: %s", peer, error->message);
|
|
g_clear_error (&error);
|
|
}
|
|
}
|
|
g_assert (pinos_buffer_unref (buffer) == FALSE);
|
|
break;
|
|
}
|
|
|
|
case G_IO_OUT:
|
|
g_warning ("can do IO OUT\n");
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
static void
|
|
handle_socket (PinosPort *port, GSocket *socket)
|
|
{
|
|
PinosPortPrivate *priv = port->priv;
|
|
GMainContext *context = g_main_context_get_thread_default();
|
|
|
|
g_debug ("port %p: handle socket in context %p", port, context);
|
|
priv->socket_source = g_socket_create_source (socket, G_IO_IN, NULL);
|
|
g_source_set_callback (priv->socket_source, (GSourceFunc) on_socket_condition, port, NULL);
|
|
g_source_attach (priv->socket_source, context);
|
|
}
|
|
|
|
static void
|
|
unhandle_socket (PinosPort *port)
|
|
{
|
|
PinosPortPrivate *priv = port->priv;
|
|
|
|
g_debug ("port %p: unhandle socket", port);
|
|
if (priv->socket_source) {
|
|
g_source_destroy (priv->socket_source);
|
|
g_clear_pointer (&priv->socket_source, g_source_unref);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* pinos_port_peek_buffer:
|
|
* @port: a #PinosPort
|
|
*
|
|
* Peek the buffer on @port.
|
|
*
|
|
* Returns: a #PinosBuffer or %NULL when no buffer has arrived on the pad.
|
|
*/
|
|
PinosBuffer *
|
|
pinos_port_peek_buffer (PinosPort *port)
|
|
{
|
|
PinosPortPrivate *priv;
|
|
|
|
g_return_val_if_fail (PINOS_IS_PORT (port), NULL);
|
|
priv = port->priv;
|
|
|
|
return priv->buffer;
|
|
}
|
|
|
|
void
|
|
pinos_port_buffer_builder_init (PinosPort *port,
|
|
PinosBufferBuilder *builder)
|
|
{
|
|
PinosPortPrivate *priv;
|
|
|
|
g_return_if_fail (PINOS_IS_PORT (port));
|
|
priv = port->priv;
|
|
|
|
pinos_buffer_builder_init_into (builder,
|
|
priv->send_data, MAX_BUFFER_SIZE,
|
|
priv->send_fds, MAX_FDS);
|
|
}
|
|
|
|
/**
|
|
* pinos_port_send_buffer:
|
|
* @port: a #PinosPort
|
|
* @buffer: a #PinosBuffer
|
|
* @error: a #GError or %NULL
|
|
*
|
|
* Send @buffer to ports connected to @port
|
|
*
|
|
* Returns: %TRUE on success. @error is set when %FALSE is returned.
|
|
*/
|
|
gboolean
|
|
pinos_port_send_buffer (PinosPort *port,
|
|
PinosBuffer *buffer,
|
|
GError **error)
|
|
{
|
|
PinosPortPrivate *priv;
|
|
PinosPort *peer;
|
|
gboolean res = TRUE;
|
|
gint i;
|
|
|
|
g_return_val_if_fail (PINOS_IS_PORT (port), FALSE);
|
|
priv = port->priv;
|
|
|
|
if (pinos_buffer_get_flags (buffer) & PINOS_BUFFER_FLAG_CONTROL)
|
|
parse_control_buffer (port, buffer);
|
|
|
|
PINOS_DEBUG_TRANSPORT ("port %p: send buffer %p", port, buffer);
|
|
if (priv->sockets[0]) {
|
|
PINOS_DEBUG_TRANSPORT ("port %p: write buffer %p", port, buffer);
|
|
res = write_buffer (priv->sockets[0], buffer, error);
|
|
}
|
|
for (i = 0; i < priv->n_peers; i++) {
|
|
peer = priv->peers[i];
|
|
if (peer == NULL)
|
|
continue;
|
|
res = pinos_port_receive_buffer (peer, buffer, error);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
/**
|
|
* pinos_port_get_socket_pair:
|
|
* @port: a #PinosPort
|
|
* @error: a #GError
|
|
*
|
|
* Create or return a previously create socket pair for @port. The
|
|
* Socket for the other end is returned.
|
|
*
|
|
* Returns: a #GSocket that can be used to send buffers to port.
|
|
*/
|
|
GSocket *
|
|
pinos_port_get_socket_pair (PinosPort *port,
|
|
GError **error)
|
|
{
|
|
PinosPortPrivate *priv;
|
|
|
|
g_return_val_if_fail (PINOS_IS_PORT (port), FALSE);
|
|
priv = port->priv;
|
|
|
|
if (priv->sockets[1] == NULL) {
|
|
int fd[2];
|
|
|
|
if (socketpair (AF_UNIX, SOCK_STREAM, 0, fd) != 0)
|
|
goto no_sockets;
|
|
|
|
priv->sockets[0] = g_socket_new_from_fd (fd[0], error);
|
|
if (priv->sockets[0] == NULL)
|
|
goto create_failed;
|
|
|
|
priv->sockets[1] = g_socket_new_from_fd (fd[1], error);
|
|
if (priv->sockets[1] == NULL)
|
|
goto create_failed;
|
|
|
|
handle_socket (port, priv->sockets[0]);
|
|
}
|
|
return g_object_ref (priv->sockets[1]);
|
|
|
|
/* ERRORS */
|
|
no_sockets:
|
|
{
|
|
g_set_error (error,
|
|
G_IO_ERROR,
|
|
g_io_error_from_errno (errno),
|
|
"could not create socketpair: %s", strerror (errno));
|
|
return NULL;
|
|
}
|
|
create_failed:
|
|
{
|
|
g_clear_object (&priv->sockets[0]);
|
|
g_clear_object (&priv->sockets[1]);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
pinos_port_get_property (GObject *_object,
|
|
guint prop_id,
|
|
GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
PinosPort *port = PINOS_PORT (_object);
|
|
PinosPortPrivate *priv = port->priv;
|
|
|
|
switch (prop_id) {
|
|
case PROP_NODE:
|
|
g_value_set_object (value, priv->node);
|
|
break;
|
|
|
|
case PROP_SOCKET:
|
|
g_value_set_object (value, priv->sockets[0]);
|
|
break;
|
|
|
|
case PROP_NAME:
|
|
g_value_set_string (value, priv->name);
|
|
break;
|
|
|
|
case PROP_DIRECTION:
|
|
g_value_set_enum (value, priv->direction);
|
|
break;
|
|
|
|
case PROP_POSSIBLE_FORMATS:
|
|
g_value_set_boxed (value, priv->possible_formats);
|
|
break;
|
|
|
|
case PROP_FORMAT:
|
|
g_value_set_boxed (value, priv->format);
|
|
break;
|
|
|
|
case PROP_PROPERTIES:
|
|
g_value_set_boxed (value, priv->properties);
|
|
break;
|
|
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (port, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
pinos_port_set_property (GObject *_object,
|
|
guint prop_id,
|
|
const GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
PinosPort *port = PINOS_PORT (_object);
|
|
PinosPortPrivate *priv = port->priv;
|
|
|
|
switch (prop_id) {
|
|
case PROP_NODE:
|
|
priv->node = g_value_get_object (value);
|
|
break;
|
|
|
|
case PROP_SOCKET:
|
|
priv->sockets[0] = g_value_dup_object (value);
|
|
break;
|
|
|
|
case PROP_NAME:
|
|
priv->name = g_value_dup_string (value);
|
|
break;
|
|
|
|
case PROP_DIRECTION:
|
|
priv->direction = g_value_get_enum (value);
|
|
break;
|
|
|
|
case PROP_POSSIBLE_FORMATS:
|
|
if (priv->possible_formats)
|
|
g_bytes_unref (priv->possible_formats);
|
|
priv->possible_formats = g_value_dup_boxed (value);
|
|
break;
|
|
|
|
case PROP_FORMAT:
|
|
if (priv->format)
|
|
g_bytes_unref (priv->format);
|
|
priv->format = g_value_dup_boxed (value);
|
|
break;
|
|
|
|
case PROP_PROPERTIES:
|
|
if (priv->properties)
|
|
pinos_properties_free (priv->properties);
|
|
priv->properties = g_value_dup_boxed (value);
|
|
break;
|
|
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (port, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
pinos_port_constructed (GObject * object)
|
|
{
|
|
PinosPort *port = PINOS_PORT (object);
|
|
PinosPortPrivate *priv = port->priv;
|
|
|
|
g_debug ("port %p: %s port constructed, node %p",
|
|
port, pinos_direction_as_string (priv->direction), priv->node);
|
|
|
|
if (priv->sockets[0])
|
|
handle_socket (port, priv->sockets[0]);
|
|
|
|
G_OBJECT_CLASS (pinos_port_parent_class)->constructed (object);
|
|
}
|
|
|
|
static void
|
|
pinos_port_dispose (GObject * object)
|
|
{
|
|
PinosPort *port = PINOS_PORT (object);
|
|
PinosPortPrivate *priv = port->priv;
|
|
|
|
g_debug ("port %p: dispose", port);
|
|
if (priv->sockets[0]) {
|
|
unhandle_socket (port);
|
|
g_clear_object (&priv->sockets[0]);
|
|
}
|
|
g_clear_object (&priv->sockets[1]);
|
|
pinos_port_unlink_all (port);
|
|
|
|
G_OBJECT_CLASS (pinos_port_parent_class)->dispose (object);
|
|
}
|
|
|
|
static void
|
|
pinos_port_finalize (GObject * object)
|
|
{
|
|
PinosPort *port = PINOS_PORT (object);
|
|
PinosPortPrivate *priv = port->priv;
|
|
|
|
g_debug ("port %p: finalize", port);
|
|
|
|
g_free (priv->name);
|
|
g_clear_pointer (&priv->possible_formats, g_bytes_unref);
|
|
g_clear_pointer (&priv->format, g_bytes_unref);
|
|
g_clear_pointer (&priv->properties, pinos_properties_free);
|
|
if (priv->received_buffer_notify)
|
|
priv->received_buffer_notify (priv->received_buffer_data);
|
|
|
|
G_OBJECT_CLASS (pinos_port_parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
pinos_port_class_init (PinosPortClass * klass)
|
|
{
|
|
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
|
|
|
g_type_class_add_private (klass, sizeof (PinosPortPrivate));
|
|
|
|
gobject_class->constructed = pinos_port_constructed;
|
|
gobject_class->dispose = pinos_port_dispose;
|
|
gobject_class->finalize = pinos_port_finalize;
|
|
gobject_class->set_property = pinos_port_set_property;
|
|
gobject_class->get_property = pinos_port_get_property;
|
|
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_NODE,
|
|
g_param_spec_object ("node",
|
|
"Node",
|
|
"The Node",
|
|
PINOS_TYPE_NODE,
|
|
G_PARAM_READWRITE |
|
|
G_PARAM_CONSTRUCT_ONLY |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_SOCKET,
|
|
g_param_spec_object ("socket",
|
|
"Socket",
|
|
"The socket for this port",
|
|
G_TYPE_SOCKET,
|
|
G_PARAM_READWRITE |
|
|
G_PARAM_CONSTRUCT_ONLY |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_NAME,
|
|
g_param_spec_string ("name",
|
|
"Name",
|
|
"The port name",
|
|
NULL,
|
|
G_PARAM_READWRITE |
|
|
G_PARAM_CONSTRUCT_ONLY |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_DIRECTION,
|
|
g_param_spec_enum ("direction",
|
|
"Direction",
|
|
"The direction of the port",
|
|
PINOS_TYPE_DIRECTION,
|
|
PINOS_DIRECTION_INVALID,
|
|
G_PARAM_READWRITE |
|
|
G_PARAM_CONSTRUCT_ONLY |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_POSSIBLE_FORMATS,
|
|
g_param_spec_boxed ("possible-formats",
|
|
"Possible Formats",
|
|
"The possbile formats of the port",
|
|
G_TYPE_BYTES,
|
|
G_PARAM_READWRITE |
|
|
G_PARAM_CONSTRUCT |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_FORMAT,
|
|
g_param_spec_boxed ("format",
|
|
"Format",
|
|
"The format of the port",
|
|
G_TYPE_BYTES,
|
|
G_PARAM_READWRITE |
|
|
G_PARAM_CONSTRUCT_ONLY |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_PROPERTIES,
|
|
g_param_spec_boxed ("properties",
|
|
"Properties",
|
|
"The properties of the port",
|
|
PINOS_TYPE_PROPERTIES,
|
|
G_PARAM_READWRITE |
|
|
G_PARAM_CONSTRUCT_ONLY |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
|
|
signals[SIGNAL_FORMAT_REQUEST] = g_signal_new ("format-request",
|
|
G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST,
|
|
0,
|
|
NULL,
|
|
NULL,
|
|
g_cclosure_marshal_generic,
|
|
G_TYPE_NONE,
|
|
0,
|
|
G_TYPE_NONE);
|
|
|
|
signals[SIGNAL_REMOVE] = g_signal_new ("remove",
|
|
G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST,
|
|
0,
|
|
NULL,
|
|
NULL,
|
|
g_cclosure_marshal_generic,
|
|
G_TYPE_NONE,
|
|
0,
|
|
G_TYPE_NONE);
|
|
signals[SIGNAL_LINKED] = g_signal_new ("linked",
|
|
G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST,
|
|
0,
|
|
NULL,
|
|
NULL,
|
|
g_cclosure_marshal_generic,
|
|
G_TYPE_NONE,
|
|
1,
|
|
PINOS_TYPE_PORT);
|
|
signals[SIGNAL_UNLINKED] = g_signal_new ("unlinked",
|
|
G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST,
|
|
0,
|
|
NULL,
|
|
NULL,
|
|
g_cclosure_marshal_generic,
|
|
G_TYPE_NONE,
|
|
1,
|
|
PINOS_TYPE_PORT);
|
|
}
|
|
|
|
static void
|
|
pinos_port_init (PinosPort * port)
|
|
{
|
|
PinosPortPrivate *priv = port->priv = PINOS_PORT_GET_PRIVATE (port);
|
|
|
|
priv->direction = PINOS_DIRECTION_INVALID;
|
|
}
|