2ac8589a25
error: Path relative to repository other than nuttx must begin with the root directory Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
128 lines
3.9 KiB
C
128 lines
3.9 KiB
C
/****************************************************************************
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* apps/examples/nxflat/tests/task/parent.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <sched.h>
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#include <semaphore.h>
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#include <errno.h>
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static char child_name[] = "child";
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static char child_arg[] = "Hello from your parent!";
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static sem_t g_sem;
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#if CONFIG_TASK_NAME_SIZE == 0
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static char no_name[] = "<noname>";
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#endif
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/****************************************************************************
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* Privite Functions
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****************************************************************************/
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/* NOTE: it is necessary for functions that are referred to by function pointers
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* pointer to be declared with global scope (at least for ARM). Otherwise,
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* a relocation type that is not supported by NXFLAT is generated by GCC.
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*/
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int child_task(int argc, char **argv)
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{
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printf("Child: execv was successful!\n");
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printf("Child: argc=%d\n", argc);
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if (argc != 2)
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{
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printf("Child: expected argc to be 2\n");
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printf("Child: Exit-ting with status=2\n");
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exit(2);
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}
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printf("Child: argv[0]=\"%s\"\n", argv[0]);
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#if CONFIG_TASK_NAME_SIZE == 0
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if (strcmp(argv[0], no_name) != 0)
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{
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printf("Child: expected argv[0] to be \"%s\"\n", no_name);
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printf("Child: Exit-ting with status=3\n");
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exit(3);
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}
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#else
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if (strncmp(argv[0], child_name, CONFIG_TASK_NAME_SIZE) != 0)
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{
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printf("Child: expected argv[0] to be \"%s\"\n", child_name);
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printf("Child: Exit-ting with status=3\n");
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exit(3);
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}
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#endif
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printf("Child: argv[1]=\"%s\"\n", argv[1]);
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if (strcmp(argv[1], child_arg) != 0)
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{
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printf("Child: expected argv[1] to be \"%s\"\n", child_arg);
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printf("Child: Exit-ting with status=4\n");
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exit(4);
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}
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printf("Child: Exit-ting with status=0\n");
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sem_post(&g_sem);
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return 0;
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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int main(int argc, char **argv)
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{
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pid_t parent_pid = getpid();
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char *child_argv[2];
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pid_t child_pid;
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printf("Parent: Started, pid=%d\n", parent_pid);
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sem_init(&g_sem, 0, 0);
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printf("Parent: Calling task_create()\n");
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child_argv[0] = child_arg;
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child_argv[1] = 0;
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child_pid = task_create(child_name, 50, 512, child_task, (FAR char * const *)child_argv);
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if (child_pid < 0)
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{
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printf("Parent: task_create failed: %d\n", errno);
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}
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printf("Parent: Waiting for child (pid=%d)\n", child_pid);
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sem_wait(&g_sem);
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printf("Parent: Exit-ing\n");
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sem_destroy(&g_sem);
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return 0;
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}
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