As you may have guessed, the POSIX threads library will grant a lock without having put the thread to sleep at all if a thread tries to lock an unlocked mutex.
可以推测到，当线程试图锁定一个未加锁的互斥对象时，POSI x线程库将同意锁定，而不会使线程进入睡眠状态。
For example the Linux Kernel introduced a new threading library in 2.6. This was the Native POSIX Linux thread library (NPTL).
举个例子吧，LinuxKernel 2.6引入了一个新的线程库，也就是本地的POSIX Linux线程库(NPTL)。
For example the Linux Kernel introduced a new threading library in 2.6. This was the Native POSIX Linux thread library (NPTL).
举个例子吧，LinuxKernel 2.6引入了一个新的线程库，也就是本地的POSIX Linux线程库(NPTL)。
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