HELPLIB.HLB  —  POSIX Threads, TIS routines, tis_lock_global
    Locks the Threads Library global mutex.

1  –  C Binding

    #include <tis.h>

    int
    tis_lock_global (void);

2  –  Arguments

    None

3  –  Description

    This routine locks the global mutex. The global mutex is
    recursive. For example, if you called tis_lock_global() three
    times, tis_unlock_global() unlocks the global mutex when you call
    it the third time.

    For more information about actions taken when threads are
    present, refer to the pthread_lock_global_np() description.

4  –  Return Values

    If an error condition occurs, this routine returns an integer
    value indicating the type of error. Possible return values are as
    follows:

    Return      Description

    0           Successful completion.

5  –  Associated Routines

       tis_unlock_global()
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