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/*
* IPC mini library
* Copyright (C) 2014 Fluendo S.A.
* @author: Josep Torra <josep@fluendo.com>
* *
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __MY_IPC_H__
#define __MY_IPC_H__
#include <glib.h>
#include <glib-object.h>
#include "egl.h"
typedef enum {
IPC_MSG_TYPE_EOS,
IPC_MSG_TYPE_REQUEST_POOL,
IPC_MSG_TYPE_RENDER_FRAME
} IPCMsgType;
typedef struct {
guint32 dummy;
} IPCMsgEOS;
typedef struct {
guint size;
guint width;
guint height;
} IPCMsgPoolRequest;
typedef struct {
EGLImageMemory *mem;
} IPCMsgRenderFrame;
typedef struct {
volatile gint refcount;
IPCMsgType type;
union {
IPCMsgEOS eos;
IPCMsgPoolRequest request_pool;
IPCMsgRenderFrame render_frame;
} u;
gpointer result;
volatile gint delivered;
gboolean synchronous;
} IPCMessage;
typedef struct
{
volatile gint refcount;
GAsyncQueue *queue;
GMutex *lock;
GCond *cond;
} IPCChannel;
IPCMessage * ipc_message_new (IPCMsgType type);
IPCMessage * ipc_message_ref (IPCMessage * message);
IPCMessage * ipc_message_unref (IPCMessage * message);
IPCMessage * ipc_message_eos_new();
IPCMessage * ipc_message_request_pool_new (guint size, guint width, guint height);
gboolean ipc_message_request_pool_parse (IPCMessage * message, guint * size,
guint * width, guint * height);
IPCMessage * ipc_message_render_frame_new (EGLImageMemory * mem);
gboolean ipc_message_render_frame_parse (IPCMessage * message, EGLImageMemory ** mem);
IPCChannel * ipc_channel_new ();
IPCChannel * ipc_channel_ref (IPCChannel * channel);
IPCChannel * ipc_channel_unref (IPCChannel * channel);
gpointer ipc_channel_send (IPCChannel * channel, IPCMessage * message);
IPCMessage * ipc_channel_try_pop (IPCChannel * channel);
void ipc_channel_delivered (IPCChannel * channel, IPCMessage * message,
gpointer result);
#endif
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