kolibrios/programs/develop/libraries/framework/trunk/include/ipc.h

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/***************************************************************************************************
* Copyright (C) Vasiliy Kosenko (vkos), 2009 *
* This program is free software: you can redistribute it and/or modify it under the terms of the *
* GNU General Public License as published by the Free Software Foundation, either version 3 *
* of the License, or (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License along with this program. *
* If not, see <http://www.gnu.org/licenses/>. *
***************************************************************************************************/
#ifndef _IPC_H_
#define _IPC_H_
#include "defs.h"
#define IPC_BUFFER_SIZE 0x1000
#define IPC_MAX_ERRORS 10
#define IPC_NO_MEMORY 1
#define IPC_CANNOT_SET_MASK 2
#define IPC_NO_AREA 1
#define IPC_BUFFER_LOCKED 2
#define IPC_OVERFLOW 3
#define IPC_NO_TID 4
/*
* Data types
*/
//
typedef struct kolibri_IPC_area {
unsigned long lock;
unsigned long size;
} IPCArea;
typedef struct kolibri_IPC_area kolibri_IPC_area_t;
//
typedef struct kolibri_IPC_message {
unsigned long tid;
unsigned long length;
} Message;
typedef struct kolibri_IPC_message kolibri_IPC_message_t;
/*
* High level IPC functions
*/
extern IPCArea *ipc_area;
int IPCInit(void);
int IPCSend(int tid, void *message, int length);
bool IPCCheck(void);
bool IPCCheckWait(int time);
Message *IPCGetNextMessage(void);
Message *IPCWaitMessage(int time);
void IPCLock(void);
void IPCUnlock(void);
/*
* Kolibri IPC functions & data
*/
extern kolibri_IPC_area_t *kolibri_IPC_area;
int kolibri_IPC_set_area(void *area, int size);
int kolibri_IPC_send(int tid, void *msg, int length);
void kolibri_IPC_unlock();
void kolibri_IPC_lock();
int kolibri_IPC_init(void *area, int size);
kolibri_IPC_message_t *kolibri_IPC_get_next_message();
// void kolibri_IPC_clear_buff();
#endif