是的malloc线程安全的? [英] Is malloc thread-safe?
问题描述
是的malloc()
函数重入?
推荐答案
我读的地方,如果你有-pthreads编译,malloc的变成线程安全的。 I'm pretty确保它的实现依赖虽然,因为的malloc是ANSI C和线程不是。
I read somewhere that if you compile with -pthreads, malloc becomes thread safe. I´m pretty sure its implementation dependant though, since malloc is ANSI C and threads are not.
如果我们谈论的gcc:
If we are talking gcc:
编译和链接-pthreads和
的malloc()将是线程安全的,在x86
和AMD64。
Compile and link with -pthreads and malloc() will be thread-safe, on x86 and AMD64.
<一个href=\"http://groups.google.com/group/comp.lang.c.moderated/browse%5Fthread/thread/2431a99b9bdcef11/ea800579e40f7fa4\">http://groups.google.com/group/comp.lang.c.moderated/browse_thread/thread/2431a99b9bdcef11/ea800579e40f7fa4
另一种意见认为,更具洞察力
Another opinion, more insightful
{malloc的,释放calloc,realloc的,免费的,
posix_memalign}的glibc的-2.2 +是
线程安全的。
{malloc, calloc, realloc, free, posix_memalign} of glibc-2.2+ are thread safe
<一个href=\"http://linux.derkeiler.com/Newsgroups/comp.os.linux.development.apps/2005-07/0323.html\">http://linux.derkeiler.com/Newsgroups/comp.os.linux.development.apps/2005-07/0323.html
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