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use get_sem_key_for_layers

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Vincent Wei
2020-01-22 17:03:42 +08:00
parent b95538a415
commit 57bdcd4754
1 changed files with 29 additions and 34 deletions
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63
src/server/layer.c
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@@ -11,41 +11,41 @@
//
//////////////////////////////////////////////////////////////////////////////
/*
* 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/>.
*/
/*
** layer.c: maintain the layers in server.
**
**
** Current maintainer: Wei Yongming.
**
** Create date: 2005/08/14
@@ -83,7 +83,7 @@ ON_CHANGE_LAYER OnChangeLayer = NULL;
static int sg_nr_layers = 0;
static unsigned char sem_usage [(MAX_NR_LAYERS + 7)/8];
static BOOL do_alloc_layer (MG_Layer* layer, const char* name,
static BOOL do_alloc_layer (MG_Layer* layer, const char* name,
int nr_topmosts, int nr_normals)
{
ZORDERINFO* zi;
@@ -97,10 +97,10 @@ static BOOL do_alloc_layer (MG_Layer* layer, const char* name,
/* Attach to the share memory. */
zi = shmat (layer->zorder_shmid, 0, 0);
if (zi == (void*)-1)
if (zi == (void*)-1)
return FALSE;
if (shmctl (layer->zorder_shmid, IPC_RMID, NULL) < 0)
if (shmctl (layer->zorder_shmid, IPC_RMID, NULL) < 0)
return FALSE;
strcpy (layer->name, name);
@@ -148,7 +148,7 @@ static BOOL do_alloc_layer (MG_Layer* layer, const char* name,
memset (maskrect_usage_bmp, 0xFF, zi->size_maskrect_usage_bmp);
/* init z-order node for desktop */
znodes = (ZORDERNODE*) ((char*)(zi + 1) + zi->size_usage_bmp +
znodes = (ZORDERNODE*) ((char*)(zi + 1) + zi->size_usage_bmp +
sizeof (ZORDERNODE) * DEF_NR_POPUPMENUS);
znodes [0].flags = ZOF_TYPE_DESKTOP | ZOF_VISIBLE;
@@ -239,11 +239,6 @@ BOOL __mg_is_valid_layer (MG_Layer* layer)
return FALSE;
}
inline static key_t get_sem_key (void)
{
return (key_t)(IPC_KEY_BASE + 0x03);
}
void __mg_delete_zi_sem (void)
{
union semun ignored;
@@ -268,11 +263,11 @@ int __mg_init_layers ()
memset (sem_usage, 0xFF, sizeof (sem_usage));
if ((sem_key = get_sem_key ()) == -1) {
if ((sem_key = get_sem_key_for_layers ()) == -1) {
return -1;
}
semid = semget (sem_key, MAX_NR_LAYERS, SEM_PARAM | IPC_CREAT | IPC_EXCL);
semid = semget (sem_key, MAX_NR_LAYERS, SEM_PARAM | IPC_CREAT | IPC_EXCL);
if (semid == -1)
return -1;
atexit (__mg_delete_zi_sem);
@@ -280,7 +275,7 @@ int __mg_init_layers ()
SHAREDRES_SEMID_LAYER = semid;
/* allocate the first layer for the default layer. */
if (!do_alloc_layer (mgLayers, NAME_DEF_LAYER,
if (!do_alloc_layer (mgLayers, NAME_DEF_LAYER,
SHAREDRES_DEF_NR_TOPMOSTS, SHAREDRES_DEF_NR_NORMALS)) {
free (mgLayers);
@@ -349,18 +344,18 @@ static MG_Layer* alloc_layer (const char* layer_name,
mgTopmostLayer = new_layer;
_WRN_PRINTF ("SERVER: alloc_layer, mgTopmostLayer->zi = %p\n",
_WRN_PRINTF ("SERVER: alloc_layer, mgTopmostLayer->zi = %p\n",
mgTopmostLayer->zorder_info);
/* Topmost layer changed */
CHANGE_TOPMOST_LAYER(mgTopmostLayer);
__mg_do_change_topmost_layer ();
_WRN_PRINTF ("SERVER: alloc_layer, mgTopmostLayer->zi = %p\n",
_WRN_PRINTF ("SERVER: alloc_layer, mgTopmostLayer->zi = %p\n",
mgTopmostLayer->zorder_info);
/* Notify that a new topmost layer have been set. */
if (OnChangeLayer)
if (OnChangeLayer)
OnChangeLayer (LCO_TOPMOST_CHANGED, mgTopmostLayer, NULL);
PostMessage (HWND_DESKTOP, MSG_ERASEDESKTOP, 0, 0);
@@ -421,7 +416,7 @@ void __mg_get_layer_info (int cli, const char* layer_name, LAYERINFO* info)
}
}
static void do_client_join_layer (int cli,
static void do_client_join_layer (int cli,
const JOINLAYERINFO* info, JOINEDCLIENTINFO* joined_info)
{
MG_Layer* layer = (MG_Layer*)(joined_info->layer);
@@ -433,11 +428,11 @@ static void do_client_join_layer (int cli,
return;
}
_WRN_PRINTF ("SERVER: Join a client (%s) to layer %s\n",
_WRN_PRINTF ("SERVER: Join a client (%s) to layer %s\n",
info->client_name, layer->name);
strcpy (new_client->name, info->client_name);
new_client->layer = layer;
/* Notify that a new client joined to this layer. */
@@ -455,13 +450,13 @@ static void do_client_join_layer (int cli,
}
/* Join a client to a layer, the server side of JoinLayer */
void __mg_client_join_layer (int cli,
void __mg_client_join_layer (int cli,
const JOINLAYERINFO* info, JOINEDCLIENTINFO* joined_info)
{
MG_Layer* layer;
if ((layer = __mg_find_layer_by_name (info->layer_name)) == NULL) {
layer = alloc_layer (info->layer_name,
layer = alloc_layer (info->layer_name,
(info->max_nr_topmosts <= 0)?SHAREDRES_DEF_NR_TOPMOSTS:
info->max_nr_topmosts,
(info->max_nr_normals<= 0)?SHAREDRES_DEF_NR_NORMALS:
@@ -512,7 +507,7 @@ BOOL GUIAPI ServerSetTopmostLayer (MG_Layer* layer)
return TRUE;
}
MG_Layer* GUIAPI ServerCreateLayer (const char* layer_name,
MG_Layer* GUIAPI ServerCreateLayer (const char* layer_name,
int max_nr_topmosts, int max_nr_normals)
{
MG_Layer* new_layer;
@@ -604,7 +599,7 @@ int GUIAPI ServerGetNextZNode (MG_Layer* layer, int idx_znode, int* cli)
return -1;
zi = (ZORDERINFO*)layer->zorder_info;
if (idx_znode > zi->max_nr_globals
if (idx_znode > zi->max_nr_globals
+ zi->max_nr_topmosts + zi->max_nr_normals) {
return -1;
}
@@ -680,7 +675,7 @@ BOOL GUIAPI ServerGetZNodeInfo (MG_Layer* layer, int idx_znode,
return FALSE;
zi = (ZORDERINFO*)layer->zorder_info;
if (idx_znode > zi->max_nr_globals
if (idx_znode > zi->max_nr_globals
+ zi->max_nr_topmosts + zi->max_nr_normals) {
return FALSE;
}
@@ -713,7 +708,7 @@ BOOL GUIAPI ServerDoZNodeOperation (MG_Layer* layer,
return FALSE;
zi = (ZORDERINFO*)layer->zorder_info;
if (idx_znode > zi->max_nr_globals
if (idx_znode > zi->max_nr_globals
+ zi->max_nr_topmosts + zi->max_nr_normals) {
return FALSE;
}