как поведет себя тред? (C, UNIX, thread)

http://www.opengroup.org/onlinepubs/009695399/functions/pthread_join.html

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ERRORS

    The pthread_join() function shall fail if:

    [ESRCH]
        No thread could be found corresponding to that specified by the given thread ID.

    The pthread_join() function may fail if:

    [EDEADLK]
        A deadlock was detected or the value of thread specifies the calling thread.
    [EINVAL]
        The value specified by thread does not refer to a joinable thread.

    The pthread_join() function shall not return an error code of [EINTR].
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