From 89f3c966e75b483eaeb4af2a85721f9b1d8ed4e2 Mon Sep 17 00:00:00 2001 From: patacongo Date: Mon, 7 Jan 2013 21:41:20 +0000 Subject: 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 --- apps/examples/ostest/Makefile | 4 ++ apps/examples/ostest/ostest.h | 6 +++ apps/examples/ostest/ostest_main.c | 6 +++ apps/examples/ostest/vfork.c | 99 ++++++++++++++++++++++++++++++++++++++ 4 files changed, 115 insertions(+) create mode 100644 apps/examples/ostest/vfork.c (limited to 'apps/examples') diff --git a/apps/examples/ostest/Makefile b/apps/examples/ostest/Makefile index 3d19f6a78..b7ba9a9a8 100644 --- a/apps/examples/ostest/Makefile +++ b/apps/examples/ostest/Makefile @@ -84,6 +84,10 @@ ifneq ($(CONFIG_DISABLE_POSIX_TIMERS),y) CSRCS += posixtimer.c endif +ifeq ($(CONFIG_ARCH_HAVE_VFORK),y) +CSRCS += vfork.c +endif + ifneq ($(CONFIG_DISABLE_SIGNALS),y) ifneq ($(CONFIG_DISABLE_PTHREAD),y) ifeq ($(CONFIG_PRIORITY_INHERITANCE),y) diff --git a/apps/examples/ostest/ostest.h b/apps/examples/ostest/ostest.h index a4af37f05..bc46a3860 100644 --- a/apps/examples/ostest/ostest.h +++ b/apps/examples/ostest/ostest.h @@ -163,6 +163,12 @@ extern void barrier_test(void); extern void priority_inheritance(void); +/* vfork.c ******************************************************************/ + +#ifdef CONFIG_ARCH_HAVE_VFORK +extern int vfork_test(void); +#endif + /* APIs exported (conditionally) by the OS specifically for testing of * priority inheritance */ diff --git a/apps/examples/ostest/ostest_main.c b/apps/examples/ostest/ostest_main.c index 46726d515..ca44353c3 100644 --- a/apps/examples/ostest/ostest_main.c +++ b/apps/examples/ostest/ostest_main.c @@ -409,6 +409,11 @@ static int user_main(int argc, char *argv[]) check_test_memory_usage(); #endif /* CONFIG_PRIORITY_INHERITANCE && !CONFIG_DISABLE_SIGNALS && !CONFIG_DISABLE_PTHREAD */ +#ifdef CONFIG_ARCH_HAVE_VFORK + printf("\nuser_main: vfork() test\n"); + vfork_test(); +#endif + /* Compare memory usage at time ostest_main started until * user_main exits. These should not be identical, but should * be similar enough that we can detect any serious OS memory @@ -428,6 +433,7 @@ static int user_main(int argc, char *argv[]) show_memory_usage(&g_mmbefore, &g_mmafter); #endif } + printf("user_main: Exitting\n"); return 0; } 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 + * + * 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 + +#include +#include +#include +#include +#include + +#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; +} -- cgit v1.2.3