/** 在当前结点前面插入新结点，并将数据的副本记录到该结点上 */
LCUI_API void* LinkedList_InsertCopy( LinkedList *list, void *data )
{
void *data_copy;
data_copy = malloc( list->node_data_size );
memcpy( data_copy, data, list->node_data_size );
LinkedList_Insert( list, data_copy );
return data_copy;
}
/** 运行目标主循环 */
int LCUI_MainLoop_Run( LCUI_MainLoop loop )
{
if( loop->state == STATE_RUNNING ) {
_DEBUG_MSG("error: main-loop already running.");
return -1;
}
DEBUG_MSG("loop: %p, enter\n", loop);
loop->state = STATE_RUNNING;
/* 将主循环记录插入至列表表头 */
LinkedList_Goto( &MainApp.loop_list, 0 );
LinkedList_Insert( &MainApp.loop_list, loop );
MainApp.loop = loop;
LCUIMutex_Lock( &MainApp.loop_changed );
/* 广播，让其它线程交出主循环运行权 */
LCUICond_Broadcast( &MainApp.loop_cond );
/* 获取运行权 */
LCUIMutex_Lock( &MainApp.loop_mutex );
LCUIMutex_Unlock( &MainApp.loop_changed );
loop->tid = LCUIThread_SelfID();
while( loop->state != STATE_EXITED ) {
if( LinkedList_GetTotal(&MainApp.task_list) <= 0 ) {
DEBUG_MSG("loop: %p, sleeping...\n", loop);
LCUICond_TimedWait( &MainApp.loop_cond, 1000 );
DEBUG_MSG("loop: %p, wakeup\n", loop);
/** 如果当前运行的主循环不是自己 */
if( MainApp.loop != loop ) {
loop->state = STATE_PAUSED;
DEBUG_MSG("loop: %p, release control.\n", loop);
LCUIMutex_Unlock( &MainApp.loop_mutex );
/* 等待其它线程获得主循环运行权 */
LCUIMutex_Lock( &MainApp.loop_changed );
LCUIMutex_Unlock( &MainApp.loop_changed );
DEBUG_MSG("loop: %p, waiting...\n", loop);
/* 等待其它线程释放主循环运行权 */
LCUIMutex_Lock( &MainApp.loop_mutex );
}
continue;
}
DEBUG_MSG("loop: %p, run task.\n", loop);
LCUI_RunTask();
}
loop->state = STATE_EXITED;
LinkedList_Goto( &MainApp.loop_list, 0 );
LinkedList_Delete( &MainApp.loop_list );
/* 获取处于列表表头的主循环 */
loop = (LCUI_MainLoop)LinkedList_Get( &MainApp.loop_list );
if( loop ) {
/* 改变当前运行的主循环 */
MainApp.loop = loop;
LCUICond_Broadcast( &MainApp.loop_cond );
}
/* 释放运行权 */
LCUIMutex_Unlock( &MainApp.loop_mutex );
/* 如果列表为空，一般意味着LCUI需要退出了 */
if( LinkedList_GetTotal( &MainApp.loop_list ) <= 0 ) {
/** 广播，通知相关线程开始进行清理操作 */
LCUICond_Broadcast( &MainApp.loop_list_empty );
}
DEBUG_MSG("loop: %p, exit\n", loop);
return 0;
}
