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PTHREAD_CONDATTR(3)        Library Functions Manual        PTHREAD_CONDATTR(3)

NAME
     pthread_condattr_init -- condition attribute operations

LIBRARY
     POSIX Threads Library (libpthread, -lpthread)

SYNOPSIS
     #include <pthread.h>

     int
     pthread_condattr_init(pthread_condattr_t *attr);

     int
     pthread_condattr_setclock(pthread_condattr_t *attr, clockid_t clock);

     int
     pthread_condattr_destroy(pthread_condattr_t *attr);

DESCRIPTION
     Condition attribute objects are used to specify parameters to the
     pthread_cond_init(3) function.  The pthread_condattr_init() function
     initializes a condition attribute object with the default attributes and
     the pthread_condattr_destroy() function destroys a condition attribute
     object.  The pthread_condattr_setclock() function sets the system clock
     to be used for time comparisons to the one specified in clock.  Valid
     clock values are CLOCK_MONOTONIC and CLOCK_REALTIME (the default).

RETURN VALUES
     If successful, these functions return 0.  Otherwise, an error number is
     returned to indicate the error.

ERRORS
     No errors are defined for pthread_condattr_init().

     The pthread_condattr_destroy() function may fail if:

     [EINVAL]           The value specified by attr is invalid.

SEE ALSO
     pthread_cond_init(3)

STANDARDS
     Both functions conform to IEEE Std 1003.1-2001 (``POSIX.1'').

CAVEATS
     The usefulness of the functions is questionable as the NetBSD
     implementation does not support any non-default attributes.  These
     functions do not conform to the IEEE Std 1003.1-2008 (``POSIX.1'')
     revision of the standard, which mandates two additional attributes, the
     clock attribute and the process-shared attribute.

NetBSD 7.1.2                   November 2, 2012                   NetBSD 7.1.2