104 lines
1.9 KiB
C
104 lines
1.9 KiB
C
#define _GNU_SOURCE
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <pthread.h>
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#include <errno.h>
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#include <unistd.h>
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#include <sys/syscall.h>
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#include <sys/mman.h>
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#include <signal.h>
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pthread_mutex_t mutex1;
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pthread_cond_t cond1;
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pthread_mutex_t mutex2;
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pthread_cond_t cond2;
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char *m;
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int flag1, flag2;
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int sigst;
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pthread_t thr;
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void *
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util_thread(void *arg)
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{
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int rc;
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rc = syscall(732);
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if (rc == -1)
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fprintf(stderr, "CT10100 running on Linux OK\n");
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else {
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fprintf(stderr, "CT10100 running on Linux NG (%d)\n", rc);
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}
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errno = 0;
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pthread_mutex_lock(&mutex1);
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flag1 = 1;
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pthread_cond_signal(&cond1);
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pthread_mutex_unlock(&mutex1);
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pthread_mutex_lock(&mutex2);
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while(!flag2) {
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pthread_cond_wait(&cond2, &mutex2);
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}
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flag2 = 0;
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pthread_mutex_unlock(&mutex2);
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pthread_mutex_lock(&mutex1);
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flag1 = 1;
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pthread_cond_signal(&cond1);
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pthread_mutex_unlock(&mutex1);
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return NULL;
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}
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int
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main(int argc, char **argv)
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{
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int rc;
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pthread_mutex_init(&mutex1, NULL);
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pthread_cond_init(&cond1, NULL);
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pthread_mutex_init(&mutex2, NULL);
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pthread_cond_init(&cond2, NULL);
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fprintf(stderr, "CT10001 futex START\n");
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#if 1
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rc = syscall(731, 1, NULL);
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if (rc) {
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fprintf(stderr, "util_indicate_clone rc=%d, errno=%d\n", rc, errno);
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fflush(stderr);
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}
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#endif
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rc = pthread_create(&thr, NULL, util_thread, NULL);
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if(rc){
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fprintf(stderr, "pthread_create: %d\n", rc);
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exit(1);
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}
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fprintf(stderr, "CT10002 pthread_create OK\n");
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pthread_mutex_lock(&mutex1);
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while(!flag1) {
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pthread_cond_wait(&cond1, &mutex1);
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}
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flag1 = 0;
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pthread_mutex_unlock(&mutex1);
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pthread_mutex_lock(&mutex2);
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flag2 = 1;
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pthread_cond_signal(&cond2);
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pthread_mutex_unlock(&mutex2);
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pthread_mutex_lock(&mutex1);
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while(!flag1) {
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pthread_cond_wait(&cond1, &mutex1);
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}
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flag1 = 0;
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pthread_mutex_unlock(&mutex1);
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pthread_join(thr, NULL);
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fprintf(stderr, "CT10003 pthread_join OK\n");
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fprintf(stderr, "CT10004 END\n");
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exit(0);
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}
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