相当于 solaris 的 fork1 的 Linux

Question

Solaris 的 fork1 是否有任何 Linux 等价物？ Solaris 手册页说:对 fork() 的调用与对 fork1(); 的调用相同，只是调用线程在子进程中被复制。这是 fork() 的 POSIX 指定行为。

Answer 1

根据 the Linux fork() man page :

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Note the following further points:

• The child process is created with a single thread—the one that called fork(). The entire virtual address space of the parent is replicated in the child, including the states of mutexes, condition variables, and other pthreads objects; the use of pthread_atfork(3) may be helpful for dealing with problems that this can cause.

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由于 Solaris 上的 fork() 和 fork1() 都只复制子进程中的调用线程，因此 Linux fork() call 是等价的。