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Diffstat (limited to 'apps/examples/nxflat/tests/task/task.c')
-rw-r--r-- | apps/examples/nxflat/tests/task/task.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/apps/examples/nxflat/tests/task/task.c b/apps/examples/nxflat/tests/task/task.c new file mode 100644 index 000000000..63e8188ed --- /dev/null +++ b/apps/examples/nxflat/tests/task/task.c @@ -0,0 +1,143 @@ +/**************************************************************************** + * examples/nxflat/tests/task/parent.c + * + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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 <sys/types.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> +#include <sched.h> +#include <semaphore.h> +#include <errno.h> + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +static char child_name[] = "child"; +static char child_arg[] = "Hello from your parent!"; +static sem_t g_sem; + +#if CONFIG_TASK_NAME_SIZE == 0 +static char no_name[] = "<noname>"; +#endif + +/**************************************************************************** + * Privite Functions + ****************************************************************************/ + +/* NOTE: it is necessary for functions that are referred to by function pointers + * pointer to be declared with global scope (at least for ARM). Otherwise, + * a relocation type that is not supported by NXFLAT is generated by GCC. + */ + + int child_task(int argc, char **argv) +{ + printf("Child: execv was successful!\n"); + printf("Child: argc=%d\n", argc); + + if (argc != 2) + { + printf("Child: expected argc to be 2\n"); + printf("Child: Exit-ting with status=2\n"); + exit(2); + } + printf("Child: argv[0]=\"%s\"\n", argv[0]); + +#if CONFIG_TASK_NAME_SIZE == 0 + if (strcmp(argv[0], no_name) != 0) + { + printf("Child: expected argv[0] to be \"%s\"\n", no_name); + printf("Child: Exit-ting with status=3\n"); + exit(3); + } +#else + if (strncmp(argv[0], child_name, CONFIG_TASK_NAME_SIZE) != 0) + { + printf("Child: expected argv[0] to be \"%s\"\n", child_name); + printf("Child: Exit-ting with status=3\n"); + exit(3); + } +#endif + + printf("Child: argv[1]=\"%s\"\n", argv[1]); + + if (strcmp(argv[1], child_arg) != 0) + { + printf("Child: expected argv[1] to be \"%s\"\n", child_arg); + printf("Child: Exit-ting with status=4\n"); + exit(4); + } + + printf("Child: Exit-ting with status=0\n"); + sem_post(&g_sem); + return 0; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +int main(int argc, char **argv) +{ + pid_t parent_pid = getpid(); + char *child_argv[2]; + pid_t child_pid; + + printf("Parent: Started, pid=%d\n", parent_pid); + + sem_init(&g_sem, 0, 0); + + printf("Parent: Calling task_create()\n"); + + child_argv[0] = child_arg; + child_argv[1] = 0; + child_pid = task_create(child_name, 50, 512, child_task, (const char**)child_argv); + if (child_pid < 0) + { + printf("Parent: task_create failed: %d\n", errno); + } + + printf("Parent: Waiting for child (pid=%d)\n", child_pid); + sem_wait(&g_sem); + printf("Parent: Exit-ing\n"); + sem_destroy(&g_sem); + return 0; +} + |