192 lines
4.1 KiB
C
192 lines
4.1 KiB
C
/*
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* File: cancel6a.c
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*
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*
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* Pthreads-win32 - POSIX Threads Library for Win32
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* Copyright (C) 1998 Ben Elliston and Ross Johnson
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* Copyright (C) 1999,2000,2001 Ross Johnson
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*
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* Contact Email: rpj@ise.canberra.edu.au
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*
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* --------------------------------------------------------------------------
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*
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* Test Synopsis: Test double cancelation - asynchronous.
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* Second attempt should fail (ESRCH).
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*
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* Test Method (Validation or Falsification):
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* -
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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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* -
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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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* - have working pthread_create, pthread_self, pthread_mutex_lock/unlock
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* pthread_testcancel, pthread_cancel, pthread_join
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*
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* Pass Criteria:
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* - Process returns zero exit status.
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*
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* Fail Criteria:
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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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/*
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* Create NUMTHREADS threads in addition to the Main thread.
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*/
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enum {
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NUMTHREADS = 4
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};
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typedef struct bag_t_ bag_t;
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struct bag_t_ {
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int threadnum;
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int started;
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/* Add more per-thread state variables here */
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int count;
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};
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static bag_t threadbag[NUMTHREADS + 1];
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void *
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mythread(void * arg)
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{
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void* result = (void*)((int)(size_t)PTHREAD_CANCELED + 1);
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bag_t * bag = (bag_t *) arg;
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assert(bag == &threadbag[bag->threadnum]);
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assert(bag->started == 0);
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bag->started = 1;
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/* Set to known state and type */
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assert(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) == 0);
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assert(pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL) == 0);
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/*
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* We wait up to 10 seconds, waking every 0.1 seconds,
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* for a cancelation to be applied to us.
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*/
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for (bag->count = 0; bag->count < 100; bag->count++)
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Sleep(100);
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return result;
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}
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int
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main()
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{
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int failed = 0;
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int i;
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pthread_t t[NUMTHREADS + 1];
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assert((t[0] = pthread_self()).p != NULL);
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for (i = 1; i <= NUMTHREADS; i++)
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{
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threadbag[i].started = 0;
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threadbag[i].threadnum = i;
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assert(pthread_create(&t[i], NULL, mythread, (void *) &threadbag[i]) == 0);
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}
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/*
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* Code to control or munipulate child threads should probably go here.
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*/
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Sleep(500);
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for (i = 1; i <= NUMTHREADS; i++)
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{
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assert(pthread_cancel(t[i]) == 0);
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assert(pthread_cancel(t[i]) == ESRCH);
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}
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/*
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* Give threads time to run.
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*/
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Sleep(NUMTHREADS * 100);
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/*
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* Standard check that all threads started.
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*/
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for (i = 1; i <= NUMTHREADS; i++)
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{
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if (!threadbag[i].started)
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{
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failed |= !threadbag[i].started;
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fprintf(stderr, "Thread %d: started %d\n", i, threadbag[i].started);
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}
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}
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assert(!failed);
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/*
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* Check any results here. Set "failed" and only print output on failure.
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*/
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failed = 0;
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for (i = 1; i <= NUMTHREADS; i++)
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{
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int fail = 0;
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void* result = (void*)0;
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/*
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* The thread does not contain any cancelation points, so
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* a return value of PTHREAD_CANCELED confirms that async
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* cancelation succeeded.
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*/
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assert(pthread_join(t[i], &result) == 0);
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fail = (result != PTHREAD_CANCELED);
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if (fail)
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{
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fprintf(stderr, "Thread %d: started %d: count %d\n",
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i,
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threadbag[i].started,
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threadbag[i].count);
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}
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failed = (failed || fail);
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}
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assert(!failed);
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/*
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* Success.
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*/
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return 0;
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}
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