NAME

tis_unlock_global − Unlocks the DECthreads global mutex. 

LIBRARY

Standard C Library (libc.so, libc.a)

SYNOPSIS

#include <tis.h>

int   tis_unlock_global(void);

STANDARDS

None

PARAMETERS

None

DESCRIPTION

This routine unlocks the DECthreads global mutex.  Because the global mutex is recursive, the unlock occurs when each call to tis_lock_global(3) has been matched by a call to this routine.  For example, if your program called tis_lock_global(3) three times, tis_unlock_global(3) 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_unlock_global_np()(3) description. 

RETURN VALUES

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

0Successful completion. 

[EPERM]The DECthreads global mutex is unlocked or locked by another thread. 

ERRORS

None

RELATED INFORMATION

Functions: tis_lock_global(3)

Manuals: Guide to DECthreads and Programmer’s Guide