97 lines
2.7 KiB
C
97 lines
2.7 KiB
C
// Copyright (c) 2013 Adobe Systems Inc
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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// trivial test for "pthread_create"
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// uses trace to not require posix
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#include <pthread.h>
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#include <stdio.h>
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static volatile int done = 0;
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static int bar = 0;
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int successfulDoneOnes = 0;
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int successfulDoneTwos = 1;
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int pass = 0;
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int EXPECTED_SUCCESSFUL_DONES = 4;
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pthread_mutex_t lock1;
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static void *foo(void *arg)
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{
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int n;
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printf("in foo -- bar: %d done: %d\n", *(int *)arg, done);
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pthread_mutex_lock(&lock1);
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if( done == successfulDoneOnes ){
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++successfulDoneOnes;
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}else{
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printf("PROBLEM 1 done=%d, successfulDoneOnes=%d\n", done, successfulDoneOnes);
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}
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n = __sync_add_and_fetch(&done, 1);
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printf("(after atomic incr) done: %d\n", done);
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if( done == successfulDoneTwos ){
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++successfulDoneTwos;
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}else{
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printf("PROBLEM 2 done=%d, successfulDoneTwos=%d\n", done, successfulDoneTwos);
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}
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pthread_mutex_unlock(&lock1);
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return NULL;
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}
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#define THREADS 4
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int main(int argc, char **argv)
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{
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int i;
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if(pthread_mutex_init(&lock1, NULL) != 0){
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printf("mutex_init failed\n");
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return 1;
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}
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if(pthread_mutex_init(&lock1, NULL) != 0){
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printf("mutex_init failed\n");
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return 1;
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}
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for(i = 0, bar = 123; i < THREADS; i++, bar++)
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{
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pthread_t tid;
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printf("creating #%d\n", i);
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pthread_create(&tid, NULL, foo, &bar);
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}
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while(done != THREADS);
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printf("done\n");
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if(successfulDoneOnes == EXPECTED_SUCCESSFUL_DONES && successfulDoneTwos == EXPECTED_SUCCESSFUL_DONES + 1){
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printf("RESULT=PASS\n");
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}else{
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printf("RESULT=FAIL\n");
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}
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pthread_mutex_destroy(&lock1);
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return 0;
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}
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