Open System Services System Calls Reference Manual (G06.25+, H06.03+)

System Functions (n - p) pthread_cond_timedwait(2)

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] One of the following conditions exists:

• The value speciﬁed by cond, mutex,orabstime is invalid.

• Different mutexes are supplied for concurrent

pthread_cond_timedwait()

operations or pthread_cond_wait()

opera-

tions on the same condition variable.

• The mutex was not owned by the calling thread at the time of the call.

[ENOMEM] The system cannot acquire the memory needed to block using a statically initial-

ized condition variable.

[ETIMEDOUT]

The time speciﬁed by the abstime parameter expired.

RELATED INFORMATION

Functions: pthread_cond_broadcast(2), pthread_cond_destroy(2), pthread_cond_init(2),

pthread_cond_signal(2), pthread_cond_wait(2), pthread_get_expiration_np(2).

STANDARDS CONFORMANCE

This function is an extension to the XPG4 Version 2 speciﬁcation. Interfaces documented on this

reference page conform to the following industry standards:

• IEEE Std 1003.1c-1995, POSIX System Application Program Interface

The use of the header ﬁle spthread.h is an HP exception to the POSIX standard. The return of

[ENOMEM] is an HP extension to the POSIX standard.

527186-003 Hewlett-Packard Company 5−49