Axel Dörfler
af0e9c1cb8
* Fixed comment, as Haiku now behaves properly at least for most cases :-) * Style guide update. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20007 a95241bf-73f2-0310-859d-f6bbb57e9c96
37 lines
811 B
C
37 lines
811 B
C
/*
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* Copyright 2007, Jérôme Duval. All rights reserved.
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* Distributed under the terms of the MIT License.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/wait.h>
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#include <unistd.h>
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/*!
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wait()/waitpid() should return -1 and set errno to ECHILD, since there
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are no children to wait for.
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*/
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int
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main()
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{
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int childStatus;
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pid_t pid = wait(&childStatus);
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printf("wait() returned %ld (%s)\n", pid, strerror(errno));
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pid = waitpid(-1, &childStatus, 0);
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printf("waitpid(-1, ...) returned %ld (%s)\n", pid, strerror(errno));
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pid = waitpid(0, &childStatus, 0);
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printf("waitpid(0, ...) returned %ld (%s)\n", pid, strerror(errno));
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pid = waitpid(getpgrp(), &childStatus, 0);
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printf("waitpid(%ld, ...) returned %ld (%s)\n", getpgrp(), pid, strerror(errno));
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return 0;
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}
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