Thread_TreeNode *
Thread_TreeNode_Add_New(Thread_TreeNode *ttn, thread_t tid)
/* 功能：在线程树中添加新的结点 */
{
int temp = 0, i;
LCUI_ID pos = 0;
if(ttn->child.total_num > 0) {
/* 先遍历数据，找未使用的空位 */
for(i = 0; i < ttn->child.max_num; ++i) {
if(ttn->child.queue[i] == NULL) {
if(temp == 0) {
temp = 1;
pos = i;
}
}
else if(ttn->child.queue[i]->tid == tid) {
/* 如果该线程ID一致 */
return ttn->child.queue[i];
}
}
ttn->child.total_num += 1; /* 增加该程序的总窗口数量 */
} else {
pos = 0;
ttn->child.total_num = 1;
ttn->child.max_num = ttn->child.total_num;
ttn->child.queue = (Thread_TreeNode**)calloc(1,
sizeof( Thread_TreeNode*));
if(ttn->child.queue == NULL) {/* 如果申请内存失败 */
//
return NULL;
}
temp = 1;
}
if(temp == 0) {/* 如果没有空位，那就扩增内存 */
pos = ttn->child.max_num;
++ttn->child.max_num;
ttn->child.queue = (Thread_TreeNode**)realloc(ttn->child.queue,
ttn->child.max_num * sizeof(Thread_TreeNode*));
if(ttn->child.queue == NULL) {/* 如果扩增内存失败 */
return NULL;
}
}
ttn->child.queue[pos] = (Thread_TreeNode*)calloc(1, sizeof(Thread_TreeNode));
/* 以下需要初始化 */
Thread_TreeNode_Init(ttn->child.queue[pos]);
ttn->child.queue[pos]->tid = tid; /* 保存线程ID */
ttn->child.queue[pos]->parent = ttn; /* 保存父线程的结点指针 */
return ttn->child.queue[pos];
}
static Thread_TreeNode *
ThreadTreeNode_AddNew( Thread_TreeNode *ttn, LCUI_Thread tid )
/* 功能：在线程树中添加新的结点 */
{
Thread_TreeNode *new_ttn;
new_ttn = malloc(sizeof(Thread_TreeNode));
Thread_TreeNode_Init( new_ttn );
new_ttn->tid = tid;
new_ttn->parent = ttn;
Queue_AddPointer(& ttn->child, new_ttn );
return new_ttn;
}
LCUIModule_Thread_Init( void )
{
Thread_TreeNode_Init( &thread_tree ); /* 初始化根线程结点 */
thread_tree.tid = LCUIThread_SelfID(); /* 当前线程ID作为根结点 */
LCUI_Sys.self_id = thread_tree.tid; /* 保存线程ID */
}
