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

System Functions (n - p) pthread_attr_getguardsize(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).

NOTES

The value of the guardsize attribute of a particular thread attributes object does not necessarily

correspond to the actual size of the guard area of any existing thread in a multi-threaded pro-

gram.

This function is not supported with the Standard POSIX Threads (SPT) library. SPT-based appli-

cations should use the pthread_attr_getguardsize_np() function instead.

For detailed information about writing multi-threaded applications for the Open System Services

environment using the POSIX User Thread Model library, see the Open System Services

Programmer’s Guide.

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.

[EINVAL] The value speciﬁed by the attr parameter is invalid.

RELATED INFORMATION

Functions: pthread_attr_init(2), pthread_attr_getguardsize_np(2),

pthread_attr_setguardsize(2).

STANDARDS CONFORMANCE

This function conforms to the following industry standards:

• IEEE Std 1003.1-2004, POSIX System Application Program Interface

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