diff options
Diffstat (limited to 'apps/examples/posix_spawn/spawn_main.c')
-rw-r--r-- | apps/examples/posix_spawn/spawn_main.c | 460 |
1 files changed, 0 insertions, 460 deletions
diff --git a/apps/examples/posix_spawn/spawn_main.c b/apps/examples/posix_spawn/spawn_main.c deleted file mode 100644 index 0ca5f9107..000000000 --- a/apps/examples/posix_spawn/spawn_main.c +++ /dev/null @@ -1,460 +0,0 @@ -/**************************************************************************** - * examples/posix_spawn/spawn_main.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 <nuttx/compiler.h> - -#include <sys/mount.h> - -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <string.h> -#include <fcntl.h> -#include <spawn.h> -#include <debug.h> -#include <errno.h> - -#include <nuttx/ramdisk.h> -#include <nuttx/binfmt/elf.h> -#include <nuttx/binfmt/symtab.h> - -#include "filesystem/romfs.h" - -/**************************************************************************** - * Definitions - ****************************************************************************/ - -/* Check configuration. This is not all of the configuration settings that - * are required -- only the more obvious. - */ - -#if CONFIG_NFILE_DESCRIPTORS < 1 -# error "You must provide file descriptors via CONFIG_NFILE_DESCRIPTORS in your configuration file" -#endif - -#ifdef CONFIG_BINFMT_DISABLE -# error "The binary loader is disabled (CONFIG_BINFMT_DISABLE)!" -#endif - -#ifndef CONFIG_ELF -# error "You must select CONFIG_ELF in your configuration file" -#endif - -#ifndef CONFIG_FS_ROMFS -# error "You must select CONFIG_FS_ROMFS in your configuration file" -#endif - -#ifdef CONFIG_DISABLE_MOUNTPOINT -# error "You must not disable mountpoints via CONFIG_DISABLE_MOUNTPOINT in your configuration file" -#endif - -#ifdef CONFIG_BINFMT_DISABLE -# error "You must not disable loadable modules via CONFIG_BINFMT_DISABLE in your configuration file" -#endif - -/* Describe the ROMFS file system */ - -#define SECTORSIZE 512 -#define NSECTORS(b) (((b)+SECTORSIZE-1)/SECTORSIZE) -#define MOUNTPT "/mnt/romfs" - -#ifndef CONFIG_EXAMPLES_ELF_DEVMINOR -# define CONFIG_EXAMPLES_ELF_DEVMINOR 0 -#endif - -#ifndef CONFIG_EXAMPLES_ELF_DEVPATH -# define CONFIG_EXAMPLES_ELF_DEVPATH "/dev/ram0" -#endif - -/* If CONFIG_DEBUG is enabled, use dbg instead of printf so that the - * output will be synchronous with the debug output. - */ - -#ifdef CONFIG_CPP_HAVE_VARARGS -# ifdef CONFIG_DEBUG -# define message(format, arg...) dbg(format, ##arg) -# define err(format, arg...) dbg(format, ##arg) -# else -# define message(format, arg...) printf(format, ##arg) -# define err(format, arg...) fprintf(stderr, format, ##arg) -# endif -#else -# ifdef CONFIG_DEBUG -# define message dbg -# define err dbg -# else -# define message printf -# define err printf -# endif -#endif - -/**************************************************************************** - * Private Types - ****************************************************************************/ - -/**************************************************************************** - * Private Data - ****************************************************************************/ - -static unsigned int g_mminitial; /* Initial memory usage */ -static unsigned int g_mmstep; /* Memory Usage at beginning of test step */ - -static const char delimiter[] = - "****************************************************************************"; -static const char g_redirect[] = "redirect"; -static const char g_hello[] = "hello"; -static const char g_data[] = "testdata.txt"; - -static char fullpath[128]; - -static char * const g_argv[4] = - { "Argument 1", "Argument 2", "Argument 3", NULL }; - -/**************************************************************************** - * Symbols from Auto-Generated Code - ****************************************************************************/ - -extern const struct symtab_s exports[]; -extern const int nexports; - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: mm_update - ****************************************************************************/ - -static void mm_update(FAR unsigned int *previous, FAR const char *msg) -{ - struct mallinfo mmcurrent; - - /* Get the current memory usage */ - -#ifdef CONFIG_CAN_PASS_STRUCTS - mmcurrent = mallinfo(); -#else - (void)mallinfo(&mmcurrent); -#endif - - /* Show the change from the previous time */ - - printf("\nMemory Usage %s:\n", msg); - printf(" Before: %8u After: %8u Change: %8d\n", - *previous, mmcurrent.uordblks, (int)mmcurrent.uordblks - (int)*previous); - - /* Set up for the next test */ - - *previous = mmcurrent.uordblks; -} - -/**************************************************************************** - * Name: mm_initmonitor - ****************************************************************************/ - -static void mm_initmonitor(void) -{ - struct mallinfo mmcurrent; - -#ifdef CONFIG_CAN_PASS_STRUCTS - mmcurrent = mallinfo(); -#else - (void)mallinfo(&mmcurrent); -#endif - - g_mminitial = mmcurrent.uordblks; - g_mmstep = mmcurrent.uordblks; - - printf("Initial memory usage: %d\n", mmcurrent.uordblks); -} - -/**************************************************************************** - * Name: testheader - ****************************************************************************/ - -static inline void testheader(FAR const char *progname) -{ - message("\n%s\n* Executing %s\n%s\n\n", delimiter, progname, delimiter); -} - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: spawn_main - ****************************************************************************/ - -int spawn_main(int argc, char *argv[]) -{ - posix_spawn_file_actions_t file_actions; - posix_spawnattr_t attr; - FAR const char *filepath; - pid_t pid; - int ret; - - /* Initialize the memory monitor */ - - mm_initmonitor(); - - /* Initialize the ELF binary loader */ - - message("Initializing the ELF binary loader\n"); - ret = elf_initialize(); - if (ret < 0) - { - err("ERROR: Initialization of the ELF loader failed: %d\n", ret); - exit(1); - } - - mm_update(&g_mmstep, "after elf_initialize"); - - /* Create a ROM disk for the ROMFS filesystem */ - - message("Registering romdisk at /dev/ram%d\n", CONFIG_EXAMPLES_ELF_DEVMINOR); - ret = romdisk_register(CONFIG_EXAMPLES_ELF_DEVMINOR, (FAR uint8_t *)romfs_img, - NSECTORS(romfs_img_len), SECTORSIZE); - if (ret < 0) - { - err("ERROR: romdisk_register failed: %d\n", ret); - elf_uninitialize(); - exit(1); - } - - mm_update(&g_mmstep, "after romdisk_register"); - - /* Mount the file system */ - - message("Mounting ROMFS filesystem at target=%s with source=%s\n", - MOUNTPT, CONFIG_EXAMPLES_ELF_DEVPATH); - - ret = mount(CONFIG_EXAMPLES_ELF_DEVPATH, MOUNTPT, "romfs", MS_RDONLY, NULL); - if (ret < 0) - { - err("ERROR: mount(%s,%s,romfs) failed: %s\n", - CONFIG_EXAMPLES_ELF_DEVPATH, MOUNTPT, errno); - elf_uninitialize(); - } - - mm_update(&g_mmstep, "after mount"); - - /* Does the system support the PATH variable? Has the PATH variable - * already been set? If YES and NO, then set the PATH variable to - * the ROMFS mountpoint. - */ - -#if defined(CONFIG_BINFMT_EXEPATH) && !defined(CONFIG_PATH_INITIAL) - (void)setenv("PATH", MOUNTPT, 1); -#endif - - /* Make sure that we are using our symbol take */ - - exec_setsymtab(exports, nexports); - - /************************************************************************* - * Case 1: Simple program with arguments - *************************************************************************/ - - /* Output a seperated so that we can clearly discriminate the output of - * this program from the others. - */ - - testheader(g_hello); - - /* Initialize the attributes file actions structure */ - - ret = posix_spawn_file_actions_init(&file_actions); - if (ret != 0) - { - err("ERROR: posix_spawn_file_actions_init failed: %d\n", ret); - } - posix_spawn_file_actions_dump(&file_actions); - - ret = posix_spawnattr_init(&attr); - if (ret != 0) - { - err("ERROR: posix_spawnattr_init failed: %d\n", ret); - } - posix_spawnattr_dump(&attr); - - mm_update(&g_mmstep, "after file_action/attr init"); - - /* If the binary loader does not support the PATH variable, then - * create the full path to the executable program. Otherwise, - * use the relative path so that the binary loader will have to - * search the PATH variable to find the executable. - */ - -#ifdef CONFIG_BINFMT_EXEPATH - filepath = g_hello; -#else - snprintf(fullpath, 128, "%s/%s", MOUNTPT, g_hello); - filepath = fullpath; -#endif - - /* Execute the program */ - - mm_update(&g_mmstep, "before posix_spawn"); - - ret = posix_spawn(&pid, filepath, &file_actions, &attr, NULL, (FAR char * const*)&g_argv); - if (ret != 0) - { - err("ERROR: posix_spawn failed: %d\n", ret); - } - - sleep(4); - mm_update(&g_mmstep, "after posix_spawn"); - - /* Free attibutes and file actions */ - - ret = posix_spawn_file_actions_destroy(&file_actions); - if (ret != 0) - { - err("ERROR: posix_spawn_file_actions_destroy failed: %d\n", ret); - } - posix_spawn_file_actions_dump(&file_actions); - - ret = posix_spawnattr_destroy(&attr); - if (ret != 0) - { - err("ERROR: posix_spawnattr_destroy failed: %d\n", ret); - } - posix_spawnattr_dump(&attr); - - mm_update(&g_mmstep, "after file_action/attr destruction"); - - /************************************************************************* - * Case 2: Simple program with redirection of stdin to a file input - *************************************************************************/ - - /* Output a seperated so that we can clearly discriminate the output of - * this program from the others. - */ - - testheader(g_redirect); - - /* Initialize the attributes file actions structure */ - - ret = posix_spawn_file_actions_init(&file_actions); - if (ret != 0) - { - err("ERROR: posix_spawn_file_actions_init failed: %d\n", ret); - } - posix_spawn_file_actions_dump(&file_actions); - - ret = posix_spawnattr_init(&attr); - if (ret != 0) - { - err("ERROR: posix_spawnattr_init failed: %d\n", ret); - } - posix_spawnattr_dump(&attr); - - mm_update(&g_mmstep, "after file_action/attr init"); - - /* Set up to close stdin (0) and open testdata.txt as the program input */ - - ret = posix_spawn_file_actions_addclose(&file_actions, 0); - if (ret != 0) - { - err("ERROR: posix_spawn_file_actions_addclose failed: %d\n", ret); - } - posix_spawn_file_actions_dump(&file_actions); - - snprintf(fullpath, 128, "%s/%s", MOUNTPT, g_data); - ret = posix_spawn_file_actions_addopen(&file_actions, 0, fullpath, O_RDONLY, 0644); - if (ret != 0) - { - err("ERROR: posix_spawn_file_actions_addopen failed: %d\n", ret); - } - posix_spawn_file_actions_dump(&file_actions); - - mm_update(&g_mmstep, "after adding file_actions"); - - /* If the binary loader does not support the PATH variable, then - * create the full path to the executable program. Otherwise, - * use the relative path so that the binary loader will have to - * search the PATH variable to find the executable. - */ - -#ifdef CONFIG_BINFMT_EXEPATH - filepath = g_redirect; -#else - snprintf(fullpath, 128, "%s/%s", MOUNTPT, g_redirect); - filepath = fullpath; -#endif - - /* Execute the program */ - - mm_update(&g_mmstep, "before posix_spawn"); - - ret = posix_spawn(&pid, filepath, &file_actions, &attr, NULL, NULL); - if (ret != 0) - { - err("ERROR: posix_spawn failed: %d\n", ret); - } - - sleep(2); - mm_update(&g_mmstep, "after posix_spawn"); - - /* Free attibutes and file actions */ - - ret = posix_spawn_file_actions_destroy(&file_actions); - if (ret != 0) - { - err("ERROR: posix_spawn_file_actions_destroy failed: %d\n", ret); - } - posix_spawn_file_actions_dump(&file_actions); - - ret = posix_spawnattr_destroy(&attr); - if (ret != 0) - { - err("ERROR: posix_spawnattr_destroy failed: %d\n", ret); - } - posix_spawnattr_dump(&attr); - - mm_update(&g_mmstep, "after file_action/attr destruction"); - - /* Clean-up */ - - elf_uninitialize(); - - mm_update(&g_mmstep, "End-of-Test"); - return 0; -} |