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      1 /*
      2  * Copyright (c) 2002, Intel Corporation. All rights reserved.
      3  * Created by:  rolla.n.selbak REMOVE-THIS AT intel DOT com
      4  * This file is licensed under the GPL license.  For the full content
      5  * of this license, see the COPYING file at the top level of this
      6  * source tree.
      7  *
      8  * int pthread_atfork(void (*prepare) (void), void (*parent) (void), void (*child) (void))
      9  *
     10  * If no handling is desired at one or more of these three points, the corresponding fork
     11  * handler address(es) may be set to NULL.
     12  *
     13  * STEPS:
     14  * 1. Call pthread_atfork() with all NULL paramters
     15  * 2. Check to make sure the function returns success
     16  *
     17  */
     18 
     19 #include <pthread.h>
     20 #include <stdio.h>
     21 #include <stdlib.h>
     22 #include <string.h>
     23 #include <errno.h>
     24 #include <unistd.h>
     25 #include <sys/wait.h>
     26 #include <sys/types.h>
     27 #include "posixtest.h"
     28 
     29 int main(void)
     30 {
     31 	pid_t pid;
     32 	int ret;
     33 
     34 	/* Set up the fork handlers */
     35 	ret = pthread_atfork(NULL, NULL, NULL);
     36 	if (ret != 0) {
     37 		if (ret == ENOMEM) {
     38 			printf("Error: ran out of memory\n");
     39 			return PTS_UNRESOLVED;
     40 		}
     41 
     42 		printf
     43 		    ("Test FAILED: Expected return value success, instead received %d\n",
     44 		     ret);
     45 		return PTS_FAIL;
     46 	}
     47 
     48 	/* Now call fork() to make sure everything goes smoothly */
     49 	pid = fork();
     50 
     51 	if (pid < 0) {
     52 		perror("Error in fork()\n");
     53 		return PTS_UNRESOLVED;
     54 	}
     55 	if (pid == 0) {
     56 		/* Child process */
     57 		pthread_exit(0);
     58 	} else {
     59 		/* Parent process */
     60 		wait(NULL);
     61 	}
     62 
     63 	printf("Test PASSED\n");
     64 	return PTS_PASS;
     65 }
     66