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add inline functions for get shm/sem key for system/layer

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Vincent Wei
2020-01-22 17:01:42 +08:00
parent e7b03037be
commit ec91986854
1 changed files with 28 additions and 10 deletions
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38
src/include/sharedres.h
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@@ -11,35 +11,35 @@
//
//////////////////////////////////////////////////////////////////////////////
/*
* This file is part of MiniGUI, a mature cross-platform windowing
* This file is part of MiniGUI, a mature cross-platform windowing
* and Graphics User Interface (GUI) support system for embedded systems
* and smart IoT devices.
*
*
* Copyright (C) 2002~2018, Beijing FMSoft Technologies Co., Ltd.
* Copyright (C) 1998~2002, WEI Yongming
*
*
* 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/>.
*
*
* Or,
*
*
* As this program is a library, any link to this program must follow
* GNU General Public License version 3 (GPLv3). If you cannot accept
* GPLv3, you need to be licensed from FMSoft.
*
*
* If you have got a commercial license of this program, please use it
* under the terms and conditions of the commercial license.
*
*
* For more information about the commercial license, please refer to
* <http://www.minigui.com/blog/minigui-licensing-policy/>.
*/
@@ -70,6 +70,24 @@ enum {
_NR_SEM
};
// key base for System V IPC
#define IPC_KEY_BASE 0x464D4700
inline static key_t get_shm_key_for_system (void)
{
return (key_t)(IPC_KEY_BASE + 0x01);
}
inline static key_t get_sem_key_for_system (void)
{
return (key_t)(IPC_KEY_BASE + 0x02);
}
inline static key_t get_sem_key_for_layers (void)
{
return (key_t)(IPC_KEY_BASE + 0x03);
}
typedef struct tagG_RES {
int semid;
int shmid;
@@ -95,7 +113,7 @@ typedef struct tagG_RES {
int mousebutton;
int shiftstatus;
Uint8 kbd_state [MGUI_NR_KEYS + 1];
#ifdef _MGHAVE_CURSOR
int cursorx, cursory;
int oldboxleft, oldboxtop;