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/*
* Copyright (c) 2003 - 2004, Intel Corporation. All rights reserved.
* This file is licensed under the GPL license. For the full content
* of this license, see the COPYING file at the top level of this
* source tree.
* adam.li@intel.com
*/
/*
* If Timers option is supported, then abs_timeout is based on
* CLOCK_REALTIME.
* Otherwise, the timeout is based on the system clock (time() function).
*/
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <fcntl.h>
#include <mqueue.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include "posixtest.h"
#define TEST "8-1"
#define FUNCTION "mq_timedreceive"
#define ERROR_PREFIX "unexpected error: " FUNCTION " " TEST ": "
#define NAMESIZE 50
#define BUFFER 40
#define TIMEOUT 3
int blocking;
void exit_handler(int signo)
{
printf("FAIL: the case is blocking, exit anyway\n");
blocking = 1;
return;
}
int main(void)
{
char mqname[NAMESIZE], msgrv[BUFFER];
mqd_t mqdes;
struct timespec ts;
time_t oldtime, newtime;
struct mq_attr attr;
pid_t pid;
int unresolved = 0, failure = 0;
sprintf(mqname, "/" FUNCTION "_" TEST "_%d", getpid());
attr.mq_msgsize = BUFFER;
attr.mq_maxmsg = BUFFER;
mqdes = mq_open(mqname, O_CREAT | O_RDWR, S_IRUSR | S_IWUSR, &attr);
if (mqdes == (mqd_t) - 1) {
perror(ERROR_PREFIX "mq_open");
unresolved = 1;
}
pid = fork();
if (pid != 0) {
/* Parent process */
struct sigaction act;
act.sa_handler = exit_handler;
act.sa_flags = 0;
sigemptyset(&act.sa_mask);
sigaction(SIGABRT, &act, 0);
#ifdef _POSIX_TIMERS
printf("Using CLOCK_REALTIME\n");
clock_gettime(CLOCK_REALTIME, &ts);
oldtime = ts.tv_sec;
ts.tv_sec = ts.tv_sec + TIMEOUT;
#else
ts.tv_sec = time(NULL) + TIMEOUT;
oldtime = time(NULL);
#endif
ts.tv_nsec = 0;
mq_timedreceive(mqdes, msgrv, BUFFER, NULL, &ts);
#ifdef _POSIX_TIMERS
clock_gettime(CLOCK_REALTIME, &ts);
newtime = ts.tv_sec;
#else
newtime = time(NULL);
#endif
if ((newtime - oldtime) < TIMEOUT) {
printf("FAIL: mq_timedreceive didn't block until "
"timout expires\n");
failure = 1;
}
/* Parent is not blocking, let child abort */
kill(pid, SIGABRT);
wait(NULL);
if (mq_close(mqdes) != 0) {
perror(ERROR_PREFIX "mq_close");
unresolved = 1;
}
if (mq_unlink(mqname) != 0) {
perror(ERROR_PREFIX "mq_unlink");
unresolved = 1;
}
if (failure == 1 || blocking == 1) {
printf("Test FAILED\n");
return PTS_FAIL;
}
if (unresolved == 1) {
printf("Test UNRESOLVED\n");
return PTS_UNRESOLVED;
}
printf("Test PASSED\n");
return PTS_PASS;
} else {
sleep(TIMEOUT + 3); /* Parent is probably blocking
send a signal to let it abort */
kill(getppid(), SIGABRT);
return 0;
}
}
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