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