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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2013-01-07 21:41:20 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2013-01-07 21:41:20 +0000 |
commit | 89f3c966e75b483eaeb4af2a85721f9b1d8ed4e2 (patch) | |
tree | b5cbba4326a2edbbb9b1723492e38a408fcb3241 /apps/examples/ostest/vfork.c | |
parent | 8514e37561246aee4dfbf569b474663aca368913 (diff) | |
download | nuttx-89f3c966e75b483eaeb4af2a85721f9b1d8ed4e2.tar.gz nuttx-89f3c966e75b483eaeb4af2a85721f9b1d8ed4e2.tar.bz2 nuttx-89f3c966e75b483eaeb4af2a85721f9b1d8ed4e2.zip |
Add ostest vfork test (does not work yet)
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5488 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'apps/examples/ostest/vfork.c')
-rw-r--r-- | apps/examples/ostest/vfork.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/apps/examples/ostest/vfork.c b/apps/examples/ostest/vfork.c new file mode 100644 index 000000000..6c83047e3 --- /dev/null +++ b/apps/examples/ostest/vfork.c @@ -0,0 +1,99 @@ +/**************************************************************************** + * examples/ostest/vfork.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <errno.h> + +#include "ostest.h" + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +#if defined(CONFIG_ARCH_HAVE_VFORK) && !defined(CONFIG_DISABLE_SIGNALS) +static volatile bool g_vforkchild; +#endif + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +int vfork_test(void) +{ +#if defined(CONFIG_ARCH_HAVE_VFORK) && !defined(CONFIG_DISABLE_SIGNALS) + pid_t pid; + + g_vforkchild = false; + pid = vfork(); + if (pid == 0) + { + /* There is not very much that the child is permitted to do. Perhaps + * it can just set g_vforkchild. + */ + + g_vforkchild = true; + exit(0); + } + else if (pid < 0) + { + printf("vfork_test: vfork() failed: %d\n", errno); + return -1; + } + else + { + sleep(1); + if (g_vforkchild) + { + printf("vfork_test: Child %d ran successfully\n", pid); + } + else + { + printf("vfork_test: ERROR Child %d did not run\n", pid); + return -1; + } + } +#endif + + return 0; +} |