425   ThreadState *fiber = static_cast<ThreadState *>(mem);  in FiberCreate()  local
426   internal_memset(fiber, 0, sizeof(*fiber));  in FiberCreate()
428   FiberSwitchImpl(thr, fiber);  in FiberCreate()
429   ThreadStart(fiber, tid, 0, ThreadType::Fiber);  in FiberCreate()
430   FiberSwitchImpl(fiber, thr);  in FiberCreate()
431   return fiber;  in FiberCreate()
434 void FiberDestroy(ThreadState *thr, uptr pc, ThreadState *fiber) {  in FiberDestroy()  argument
435   FiberSwitchImpl(thr, fiber);  in FiberDestroy()
436   ThreadFinish(fiber);  in FiberDestroy()
437   FiberSwitchImpl(fiber, thr);  in FiberDestroy()
438   internal_free(fiber);  in FiberDestroy()
442                  ThreadState *fiber, unsigned flags) {  in FiberSwitch()  argument
444     Release(thr, pc, (uptr)fiber);  in FiberSwitch()
445   FiberSwitchImpl(thr, fiber);  in FiberSwitch()
447     Acquire(fiber, pc, (uptr)fiber);  in FiberSwitch()