137 lines
2.5 KiB
C
137 lines
2.5 KiB
C
/*
|
|
* File: condvar5.c
|
|
*
|
|
* Test Synopsis:
|
|
* - Test pthread_cond_broadcast.
|
|
*
|
|
* Test Method (Validation or Falsification):
|
|
* - Validation
|
|
*
|
|
* Requirements Tested:
|
|
* -
|
|
*
|
|
* Features Tested:
|
|
* -
|
|
*
|
|
* Cases Tested:
|
|
* -
|
|
*
|
|
* Description:
|
|
* - Test broadcast with one waiting CV.
|
|
*
|
|
* Environment:
|
|
* -
|
|
*
|
|
* Input:
|
|
* - None.
|
|
*
|
|
* Output:
|
|
* - File name, Line number, and failed expression on failure.
|
|
* - No output on success.
|
|
*
|
|
* Assumptions:
|
|
* -
|
|
*
|
|
* Pass Criteria:
|
|
* - pthread_cond_timedwait returns 0.
|
|
* - Process returns zero exit status.
|
|
*
|
|
* Fail Criteria:
|
|
* - pthread_cond_timedwait returns ETIMEDOUT.
|
|
* - Process returns non-zero exit status.
|
|
*/
|
|
|
|
#include "test.h"
|
|
#include <sys/timeb.h>
|
|
|
|
typedef struct cvthing_t_ cvthing_t;
|
|
|
|
struct cvthing_t_ {
|
|
pthread_cond_t notbusy;
|
|
pthread_mutex_t lock;
|
|
int shared;
|
|
};
|
|
|
|
static cvthing_t cvthing = {
|
|
PTHREAD_COND_INITIALIZER,
|
|
PTHREAD_MUTEX_INITIALIZER,
|
|
0
|
|
};
|
|
|
|
enum {
|
|
NUMTHREADS = 2
|
|
};
|
|
|
|
void *
|
|
mythread(void * arg)
|
|
{
|
|
assert(pthread_mutex_lock(&cvthing.lock) == 0);
|
|
|
|
cvthing.shared++;
|
|
|
|
assert(pthread_mutex_unlock(&cvthing.lock) == 0);
|
|
|
|
assert(pthread_cond_broadcast(&cvthing.notbusy) == 0);
|
|
|
|
return (void *) 0;
|
|
}
|
|
|
|
int
|
|
main()
|
|
{
|
|
pthread_t t[NUMTHREADS];
|
|
struct timespec abstime = { 0, 0 };
|
|
struct timeb currSysTime;
|
|
const DWORD NANOSEC_PER_MILLISEC = 1000000;
|
|
|
|
cvthing.shared = 0;
|
|
|
|
assert((t[0] = pthread_self()) != NULL);
|
|
|
|
assert(cvthing.notbusy == PTHREAD_COND_INITIALIZER);
|
|
|
|
assert(cvthing.lock == PTHREAD_MUTEX_INITIALIZER);
|
|
|
|
assert(pthread_mutex_lock(&cvthing.lock) == 0);
|
|
|
|
assert(cvthing.lock != PTHREAD_MUTEX_INITIALIZER);
|
|
|
|
/* get current system time */
|
|
ftime(&currSysTime);
|
|
|
|
abstime.tv_sec = currSysTime.time;
|
|
abstime.tv_nsec = NANOSEC_PER_MILLISEC * currSysTime.millitm;
|
|
|
|
abstime.tv_sec += 5;
|
|
|
|
assert(pthread_cond_timedwait(&cvthing.notbusy, &cvthing.lock, &abstime) == ETIMEDOUT);
|
|
|
|
assert(cvthing.notbusy != PTHREAD_COND_INITIALIZER);
|
|
|
|
assert(pthread_create(&t[1], NULL, mythread, (void *) 1) == 0);
|
|
|
|
ftime(&currSysTime);
|
|
|
|
abstime.tv_sec = currSysTime.time;
|
|
abstime.tv_nsec = NANOSEC_PER_MILLISEC * currSysTime.millitm;
|
|
|
|
abstime.tv_sec += 5;
|
|
|
|
while (! (cvthing.shared > 0))
|
|
assert(pthread_cond_timedwait(&cvthing.notbusy, &cvthing.lock, &abstime) == 0);
|
|
|
|
assert(cvthing.shared > 0);
|
|
|
|
assert(pthread_mutex_unlock(&cvthing.lock) == 0);
|
|
|
|
assert(pthread_mutex_destroy(&cvthing.lock) == 0);
|
|
|
|
assert(cvthing.lock == NULL);
|
|
|
|
assert(pthread_cond_destroy(&cvthing.notbusy) == 0);
|
|
|
|
assert(cvthing.notbusy == NULL);
|
|
|
|
return 0;
|
|
}
|