分离的pthread_create()会泄漏内存 [英] Detached pthread_create() leaks memory
问题描述
我正在Linux环境中用C开发应用程序.我注意到以下代码仅执行数百次后就会泄漏大量内存:
I'm developping an application in C in a Linux environment. I've noticed that the following code leaks tons of memory after only hundreds executions :
do {
pthread_t flushThread;
pthread_attr_t attr;
logevent_thread_t logThread = { Db , &do_curl };
if (( pthread_attr_init ( &attr ) == 0 ) &&
( pthread_attr_setdetachstate ( &attr , PTHREAD_CREATE_DETACHED ) == 0 ) ) {
pthread_create ( &flushThread , &attr , (void*)FlushThread , (void*)&logThread );
pthread_attr_destroy ( &attr );
}
} while(1);
当我从代码开始时，我只使用了pthread_create()，但是当我注意到泄漏时，我就启动了google's并搜索了StackOverflow，并找到了以下URL:
When I started with the code, I only used pthread_create(), but when I noticed the leak, I started google'd and searched StackOverflow, and found the following URLs :
- pthread_create memory leak
- valgrind memory leak errors when using pthread_create
这就是为什么我初始化属性并启动分离"线程的原因.我还破坏了属性. 我不能使用pthread_join()，因为我不想阻塞调用，我希望我的线程自己生活.
That's why I initialize the attributes and start the thread "detached". I also destroy the attributes. I can not use pthread_join() since I don't want a blocking call, I want my thread to live on his own.
不幸的是，泄漏仍然存在.我没有更多的想法了，会得到任何进一步的建议！
Unfortunately, the leak is still there. I've no more ideas, and will get any further advice !
谢谢！
@arrowdodger:不设置任何类型的属性而调用pthread_detach()也会泄漏. 我也尝试使用setdetach和pthread_detach()失败.
@arrowdodger: Calling pthread_detach() without setting any kind of attributes also leaks. I also tried with setdetach and pthread_detach() without success.
@drhirsch:我知道它会泄漏，因为当我将其运行1天时，会出现内存不足"内核恐慌.此外，使用top可以看到越来越多的备忘录专门用于我的过程(但是我知道，最好的方法是使用valgrind).
@drhirsch : I know it leaks because when I have it run for 1 day, I get a "Out Of Memory" kernel panic. Additionnaly, using top I can see more and more memoery dedicated to my process (but I understand the best way to minitor this is to use valgrind).
推荐答案
我从您的链接中了解到，您应该调用pthread_detach()而不是使用DETACHED属性创建它.
What i read from your links is that you should call pthread_detach(), not create it with DETACHED attribute.
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