调用pthread_create
函数后,我收到下一条消息:
W/libc (26409):pthread_create sched_setscheduler 调用失败:不允许操作
用于创建线程的代码是:
pthread_attr_t threadAttr;
int ret = pthread_attr_init(&threadAttr);
//code to check ret - it's 0
size_t guard_size = 0;
pthread_attr_getguardsize(&threadAttr, &guard_size);
ret = pthread_attr_setstacksize(&threadAttr, myStackSize + guard_size);
//code to check ret - it's 0
ret = pthread_attr_setdetachstate(&threadAttr, PTHREAD_CREATE_DETACHED);
//code to check ret - it's 0
ret = pthread_attr_setschedpolicy(&threadAttr, SCHED_FIFO);
//code to check ret - it's 0
sched_param schedParam;
schedParam.sched_priority = myPriority; //it's 16
ret = pthread_attr_setschedparam(&threadAttr, &schedParam);
//code to check ret - it's 0
// Create the thread
ret = pthread_create(&myHandle, &threadAttr, RunCallback, (void *)myData);
//code to check ret - it's 0
//code to check myHandle - it's > 0
// Delete attribute
pthread_attr_destroy(&threadAttr);
请注意,在 RunCallback 中的断点被命中之前,该消息会出现在 logcat 中。
你知道我为什么会有这个警告吗?忽略它是否安全 - 如果是,为什么?
PS:代码在具有 4.4.2 OS 版本(内部版本号 KOT49H)的 Nexus 4 设备上作为本机活动运行。