[bug #40612] NSTaskDidTerminateNotification posted late or never

[Larry Campbell]

Follow-up Comment #2, bug #40612 (project gnustep):

The following test function works on Mac OS X, but fails with gnustep without
the fixes:


static BOOL taskTerminationNotificationReceived;

- (void)taskDidTerminate:(NSNotification *)notification
{
    NSLog(@"Received NSTaskDidTerminateNotification %@", notification);
    taskTerminationNotificationReceived = YES;
}

- (void)testNSTaskNotifications
{
    NSDate *deadline;
    BOOL earlyTermination = NO;

    for (;;) {
        NSTask *task = [NSTask new];
        [task setLaunchPath:@"/bin/sh"];
        [task setArguments:[NSArray arrayWithObjects:@"-c", @"echo Child
starting; sleep 10; echo Child exiting", nil]];
        taskTerminationNotificationReceived = NO;
        [[NSNotificationCenter defaultCenter] addObserver: self
                                                 selector:
@selector(taskDidTerminate:)
                                                     name:
NSTaskDidTerminateNotification
                                                   object: task];
        [task launch];
        NSLog(@"Launched pid %d", [task processIdentifier]);
        if (earlyTermination) {
            NSLog(@"Running run loop for 5 seconds");
            deadline = [NSDate dateWithTimeIntervalSinceNow:5.0];
            while ([deadline timeIntervalSinceNow] > 0.0)
                [[NSRunLoop currentRunLoop] runUntilDate:[NSDate
dateWithTimeIntervalSinceNow:1.0]];
            NSLog(@"Run loop finished, will now call -[NSTask terminate]");
            [task terminate];
            NSLog(@"Terminate returned, waiting for termination");
            [task waitUntilExit];
        } else {
            NSLog(@"Running run loop for 15 seconds");
            deadline = [NSDate dateWithTimeIntervalSinceNow:15.0];
            while ([deadline timeIntervalSinceNow] > 0.0 &&
!taskTerminationNotificationReceived)
                [[NSRunLoop currentRunLoop] runUntilDate:[NSDate
dateWithTimeIntervalSinceNow:1.0]];
        }
        [task release];
        NSAssert(taskTerminationNotificationReceived, @"termination
notification not received");
        [[NSNotificationCenter defaultCenter] removeObserver:self
name:NSTaskDidTerminateNotification object:nil];
        if (earlyTermination)
            break;
        earlyTermination = YES;
    }
}


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