pthread_cond_init —
create a condition variable
#include <pthread.h>
int
pthread_cond_init(pthread_cond_t
*cond, const
pthread_condattr_t *attr);
The
pthread_cond_init() function creates a new condition
variable, with attributes specified with
attr. If
attr is
NULL the default
attributes are used.
If successful, the pthread_cond_init() function will
return zero and put the new condition variable ID into
cond, otherwise an error number will be returned to
indicate the error.
pthread_cond_init() will fail if:
- [
EINVAL]
- The value specified by attr is invalid.
- [
ENOMEM]
- The process cannot allocate enough memory to create another condition
variable.
- [
EAGAIN]
- The system temporarily lacks the resources to create another condition
variable.
pthread_cond_init() conforms to ISO/IEC
9945-1:1996 (“POSIX.1”).