pthread_condattr3
Condition attribute operations
Usage
#include <pthread.h>
int
pthread_condattr_init(pthread_condattr_t *attr);
int
pthread_condattr_destroy(pthread_condattr_t *attr);
Overview
Condition attribute objects are used to specify parameters to pthread_cond_init(). FreeBSD's implementation of conditions does not support any non-default attributes, so these functions are not very useful, though they are required to to be present by POSIX.
The pthread_condattr_init() function initializes a condition attribute object with the default attributes.
The pthread_condattr_destroy() function destroys a condition attribute object.
Return values
If successful, these functions return 0. Otherwise, an error number is returned to indicate the error.
Errors
pthread_condattr_destroy() will fail if:
- [EINVAL]
-
Invalid value for attr.
pthread_condattr_init() will fail if:
- [ENOMEM]
-
Out of memory.
Releases
149 releases since Mac OS X 10.2; the text changed 2 times.