#include <thread.h> int cond_init(cond_t *cv, int type, int arg);
Use cond_init(3T) to initialize the condition variable pointed to by cv. The type can be one of the following (note that arg is currently ignored). (For POSIX threads, see "pthread_condattr_init(3T)".)
Condition variables can also be initialized by allocation in zeroed memory, in which case a type of USYNC_THREAD is assumed.
Multiple threads must not initialize the same condition variable simultaneously. A condition variable must not be reinitialized while other threads might be using it.
#include <thread.h> cond_t cv; int ret; /* to be used within this process only */ ret = cond_init(cv, USYNC_THREAD, 0);
#include <thread.h> cond_t cv; int ret; /* to be used among all processes */ ret = cond_init(&cv, USYNC_PROCESS, 0);