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author | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
commit | 3562e78743202e43aec8727005182a2558117eca (patch) | |
tree | 8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /pthreads/tests/condvar9.c | |
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Diffstat (limited to 'pthreads/tests/condvar9.c')
-rw-r--r-- | pthreads/tests/condvar9.c | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/pthreads/tests/condvar9.c b/pthreads/tests/condvar9.c new file mode 100644 index 000000000..c75127108 --- /dev/null +++ b/pthreads/tests/condvar9.c @@ -0,0 +1,267 @@ +/* + * File: condvar9.c + * + * + * -------------------------------------------------------------------------- + * + * Pthreads-win32 - POSIX Threads Library for Win32 + * Copyright(C) 1998 John E. Bossom + * Copyright(C) 1999,2005 Pthreads-win32 contributors + * + * Contact Email: rpj@callisto.canberra.edu.au + * + * The current list of contributors is contained + * in the file CONTRIBUTORS included with the source + * code distribution. The list can also be seen at the + * following World Wide Web location: + * http://sources.redhat.com/pthreads-win32/contributors.html + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library in the file COPYING.LIB; + * if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + * + * -------------------------------------------------------------------------- + * + * Test Synopsis: + * - Test multiple pthread_cond_broadcasts with thread cancelation. + * + * Test Method (Validation or Falsification): + * - Validation + * + * Requirements Tested: + * - + * + * Features Tested: + * - + * + * Cases Tested: + * - + * + * Description: + * - Make NUMTHREADS threads wait on CV, cancel one, broadcast signal them, + * and then repeat. + * + * Environment: + * - + * + * Input: + * - None. + * + * Output: + * - File name, Line number, and failed expression on failure. + * - No output on success. + * + * Assumptions: + * - + * + * Pass Criteria: + * - Process returns zero exit status. + * + * Fail Criteria: + * - Process returns non-zero exit status. + */ + +#include "test.h" +#include <sys/timeb.h> + +/* + * Create NUMTHREADS threads in addition to the Main thread. + */ +enum { + NUMTHREADS = 9 +}; + +typedef struct bag_t_ bag_t; +struct bag_t_ { + int threadnum; + int started; + int finished; + /* Add more per-thread state variables here */ +}; + +static bag_t threadbag[NUMTHREADS + 1]; + +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 +}; + +static pthread_mutex_t start_flag = PTHREAD_MUTEX_INITIALIZER; + +static struct timespec abstime = { 0, 0 }; + +static int awoken; + +static void * +mythread(void * arg) +{ + bag_t * bag = (bag_t *) arg; + + assert(bag == &threadbag[bag->threadnum]); + assert(bag->started == 0); + bag->started = 1; + + /* Wait for the start gun */ + assert(pthread_mutex_lock(&start_flag) == 0); + assert(pthread_mutex_unlock(&start_flag) == 0); + + assert(pthread_mutex_lock(&cvthing.lock) == 0); + + /* + * pthread_cond_timedwait is a cancelation point and we're + * going to cancel some threads deliberately. + */ +#ifdef _MSC_VER +#pragma inline_depth(0) +#endif + pthread_cleanup_push(pthread_mutex_unlock, (void *) &cvthing.lock); + + while (! (cvthing.shared > 0)) + assert(pthread_cond_timedwait(&cvthing.notbusy, &cvthing.lock, &abstime) == 0); + + pthread_cleanup_pop(0); +#ifdef _MSC_VER +#pragma inline_depth() +#endif + + assert(cvthing.shared > 0); + + awoken++; + bag->finished = 1; + + assert(pthread_mutex_unlock(&cvthing.lock) == 0); + + return (void *) 0; +} + +int +main() +{ + int failed = 0; + int i; + int first, last; + int canceledThreads = 0; + pthread_t t[NUMTHREADS + 1]; + + struct _timeb currSysTime; + const DWORD NANOSEC_PER_MILLISEC = 1000000; + + assert((t[0] = pthread_self()).p != NULL); + + assert(cvthing.notbusy == PTHREAD_COND_INITIALIZER); + + assert(cvthing.lock == PTHREAD_MUTEX_INITIALIZER); + + _ftime(&currSysTime); + + abstime.tv_sec = currSysTime.time; + abstime.tv_nsec = NANOSEC_PER_MILLISEC * currSysTime.millitm; + + abstime.tv_sec += 5; + + assert((t[0] = pthread_self()).p != NULL); + + awoken = 0; + + for (first = 1, last = NUMTHREADS / 2; + first < NUMTHREADS; + first = last + 1, last = NUMTHREADS) + { + int ct; + + assert(pthread_mutex_lock(&start_flag) == 0); + + for (i = first; i <= last; i++) + { + threadbag[i].started = threadbag[i].finished = 0; + threadbag[i].threadnum = i; + assert(pthread_create(&t[i], NULL, mythread, (void *) &threadbag[i]) == 0); + } + + /* + * Code to control or munipulate child threads should probably go here. + */ + cvthing.shared = 0; + + assert(pthread_mutex_unlock(&start_flag) == 0); + + /* + * Give threads time to start. + */ + Sleep(1000); + + ct = (first + last) / 2; + assert(pthread_cancel(t[ct]) == 0); + canceledThreads++; + assert(pthread_join(t[ct], NULL) == 0); + + assert(pthread_mutex_lock(&cvthing.lock) == 0); + cvthing.shared++; + assert(pthread_mutex_unlock(&cvthing.lock) == 0); + + assert(pthread_cond_broadcast(&cvthing.notbusy) == 0); + + /* + * Standard check that all threads started - and wait for them to finish. + */ + for (i = first; i <= last; i++) + { + failed = !threadbag[i].started; + + if (failed) + { + fprintf(stderr, "Thread %d: started %d\n", i, threadbag[i].started); + } + else + { + assert(pthread_join(t[i], NULL) == 0 || threadbag[i].finished == 0); +// fprintf(stderr, "Thread %d: finished %d\n", i, threadbag[i].finished); + } + } + } + + /* + * Cleanup the CV. + */ + + assert(pthread_mutex_destroy(&cvthing.lock) == 0); + + assert(cvthing.lock == NULL); + + assert_e(pthread_cond_destroy(&cvthing.notbusy), ==, 0); + + assert(cvthing.notbusy == NULL); + + assert(!failed); + + /* + * Check any results here. + */ + + assert(awoken == NUMTHREADS - canceledThreads); + + /* + * Success. + */ + return 0; +} |