Open System Services System Calls Reference Manual (G06.29+, H06.08+, J06.03+)

System Functions (n - p) pthread_unlock_global_np(2)
• Include the pthread.h header file in the application.
• Compile the application using the _PUT_MODEL_ feature test macro or equivalent
compiler command option.
• Compile the application using the -Wlp64 compiler command option.
• Link the application to the yputdll library (/G/system/zdllnnn/yputdll).
To use this function in a threaded application that uses the Standard POSIX Threads library on
systems running H06.21 or later RVUs or J06.10 or later RVUs, you must perform all of the fol-
lowing tasks:
• Include the spthread.h header file in the application.
• Compile the application using the _SPT_MODEL_ feature test macro or equivalent
compiler command option.
• Link the application to the zsptdll library (/G/system/zdllnnn/zsptdll).
RETURN VALUES
If an error condition occurs, this function returns an integer value indicating the type of error.
Possible return values are:
0 Successful completion.
[EPERM] The threads global mutex is unlocked or owned by another thread.
RELATED INFORMATION
Functions: pthread_lock_global_np(2).
STANDARDS CONFORMANCE
This function is an extension to the XPG4 Version 2 specification and to the following industry
standards:
• IEEE Std 1003.1c-1995, POSIX System Application Program Interface
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