/*********************************************************************************************************
** 函数名称: _StackFree
** 功能描述: 回收栈内存
** 输 入 : ptcbDel 任务
** pstk 栈内存
** bImmed 立即回收
** 输 出 : NONE
** 全局变量:
** 调用模块:
*********************************************************************************************************/
VOID _StackFree (PLW_CLASS_TCB ptcb, PLW_STACK pstk, BOOL bImmed)
{
#if LW_CFG_MODULELOADER_EN > 0
vprocStackFree(ptcb, (PVOID)pstk, bImmed);
#else
__KHEAP_FREE((PVOID)pstk);
#endif /* LW_CFG_MODULELOADER_EN > 0 */
}
ULONG __threadDelete (PLW_CLASS_TCB ptcbDel, BOOL bIsInSafe,
PVOID pvRetVal, BOOL bIsAlreadyWaitDeath)
{
INTREG iregInterLevel;
REGISTER UINT16 usIndex;
REGISTER PLW_CLASS_PCB ppcbDel;
REGISTER LW_OBJECT_HANDLE ulId;
REGISTER PVOID pvFreeLowAddr; /* 要释放的内存地址 */
PVOID pvVProc;
#if (LW_CFG_EVENTSET_EN > 0) && (LW_CFG_MAX_EVENTSETS > 0)
REGISTER PLW_EVENTSETNODE pesnPtr;
#endif
ulId = ptcbDel->TCB_ulId;
usIndex = _ObjectGetIndex(ulId);
if (bIsAlreadyWaitDeath == LW_FALSE) {
_ThreadDeleteWaitDeath(ptcbDel); /* 将要删除的线程进入僵死状态 */
}
__KERNEL_ENTER(); /* 进入内核 */
ppcbDel = _GetPcb(ptcbDel);
iregInterLevel = KN_INT_DISABLE(); /* 关闭中断 */
if (ptcbDel->TCB_ptcbDeleteWait) { /* 目标线程正在等待其他任务删除*/
ptcbDel->TCB_ptcbDeleteWait->TCB_ptcbDeleteMe = (PLW_CLASS_TCB)1;
ptcbDel->TCB_ptcbDeleteWait = LW_NULL;
}
#if (LW_CFG_EVENT_EN > 0) && (LW_CFG_MAX_EVENTS > 0)
if (ptcbDel->TCB_peventPtr) { /* 等待事件中 */
_EventUnlink(ptcbDel); /* 解等待连 */
}
#endif
#if (LW_CFG_EVENTSET_EN > 0) && (LW_CFG_MAX_EVENTSETS > 0)
pesnPtr = ptcbDel->TCB_pesnPtr;
if (pesnPtr) {
_EventSetUnlink(pesnPtr); /* 解事件集 */
}
#endif
#if LW_CFG_SMP_EN > 0
if (ptcbDel->TCB_ptcbWaitStatus ||
ptcbDel->TCB_plineStatusReqHeader) { /* 正在请求其他线程改变状态 */
_ThreadUnwaitStatus(ptcbDel);
}
#endif /* LW_CFG_SMP_EN */
if (__LW_THREAD_IS_READY(ptcbDel)) { /* 是否就绪 */
__DEL_FROM_READY_RING(ptcbDel, ppcbDel); /* 从就绪队列中删除 */
} else {
if (ptcbDel->TCB_usStatus & LW_THREAD_STATUS_DELAY) {
__DEL_FROM_WAKEUP_LINE(ptcbDel); /* 从等待链中删除 */
ptcbDel->TCB_ulDelay = 0ul;
}
ptcbDel->TCB_usStatus = LW_THREAD_STATUS_RDY; /* 防止 Tick 中断激活 */
}
#if LW_CFG_SOFTWARE_WATCHDOG_EN > 0
if (ptcbDel->TCB_bWatchDogInQ) {
__DEL_FROM_WATCHDOG_LINE(ptcbDel); /* 从 watch dog 中删除 */
ptcbDel->TCB_ulWatchDog = 0ul;
}
#endif
KN_INT_ENABLE(iregInterLevel);
pvFreeLowAddr = (PVOID)ptcbDel->TCB_pstkStackLowAddr; /* 记录地址 */
#if (LW_CFG_THREAD_PRIVATE_VARS_EN > 0) && (LW_CFG_MAX_THREAD_GLB_VARS > 0)
_ThreadVarDelete(ptcbDel); /* 删除并恢复私有化的全局变量 */
#endif
iregInterLevel = KN_INT_DISABLE(); /* 关闭中断 */
_K_usThreadCounter--;
_K_ptcbTCBIdTable[usIndex] = LW_NULL; /* TCB 表清0 */
_List_Line_Del(&ptcbDel->TCB_lineManage, &_K_plineTCBHeader); /* 从管理练表中删除 */
KN_INT_ENABLE(iregInterLevel); /* 打开中断 */
if (ptcbDel->TCB_ptcbJoin) {
_ThreadDisjoin(ptcbDel->TCB_ptcbJoin, ptcbDel); /* 退出 join 状态, 不操作就绪表*/
}
_ThreadDisjoinWakeupAll(ptcbDel, pvRetVal); /* DETACH */
__KERNEL_EXIT(); /* 退出内核 */
#if LW_CFG_COROUTINE_EN > 0
_CoroutineFreeAll(ptcbDel); /* 删除协程内存空间 */
#endif /* LW_CFG_COROUTINE_EN > 0 */
if (bIsInSafe) {
_DebugFormat(__ERRORMESSAGE_LEVEL,
"thread \"%s\" has been delete in SAFE mode.\r\n",
ptcbDel->TCB_cThreadName);
} else {
_DebugFormat(__LOGMESSAGE_LEVEL,
"thread \"%s\" has been delete.\r\n",
ptcbDel->TCB_cThreadName);
}
pvVProc = ptcbDel->TCB_pvVProcessContext; /* 进程信息 */
if (ptcbDel->TCB_ucStackAutoAllocFlag) { /* 是否是内核堆开辟堆栈 */
#if LW_CFG_MODULELOADER_EN > 0
vprocStackFree(ptcbDel, pvFreeLowAddr, LW_FALSE);
#else
__KHEAP_FREE(pvFreeLowAddr); /* 释放堆栈空间 */
#endif /* LW_CFG_MODULELOADER_EN > 0 */
}
_TCBDestroy(ptcbDel); /* 销毁 TCB */
__KERNEL_MODE_PROC(
_Free_Tcb_Object(ptcbDel); /* 释放 ID */
);