From 5375bb5b86e266157ceceef08c367da711b8144e Mon Sep 17 00:00:00 2001 From: Lorenz Meier Date: Sat, 1 Jun 2013 01:04:32 +0200 Subject: Cleanup, WIP, needs a NuttX checkout to Firmware/NuttX now --- apps/examples/ostest/sighand.c | 330 ----------------------------------------- 1 file changed, 330 deletions(-) delete mode 100644 apps/examples/ostest/sighand.c (limited to 'apps/examples/ostest/sighand.c') diff --git a/apps/examples/ostest/sighand.c b/apps/examples/ostest/sighand.c deleted file mode 100644 index 32b182c21..000000000 --- a/apps/examples/ostest/sighand.c +++ /dev/null @@ -1,330 +0,0 @@ -/*********************************************************************** - * apps/examples/ostest/sighand.c - * - * Copyright (C) 2007, 2008, 2011 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. - * - ***********************************************************************/ - -#include -#include -#include -#include -#include -#include -#include -#include -#include "ostest.h" - -#ifndef NULL -# define NULL (void*)0 -#endif - -#define WAKEUP_SIGNAL 17 -#define SIGVALUE_INT 42 - -static sem_t sem; -static bool sigreceived = false; -static bool threadexited = false; - -#ifdef CONFIG_SCHED_HAVE_PARENT -static void death_of_child(int signo, siginfo_t *info, void *ucontext) -{ - /* Use of printf in a signal handler is NOT safe! It can cause deadlocks! - * Also, signals are not queued by NuttX. As a consequence, some - * notifications will get lost (or the info data can be overwrittedn)! - * Because POSIX does not require signals to be queued, I do not think - * that this is a bug (the overwriting is a bug, however). - */ - - if (info) - { - printf("death_of_child: PID %d received signal=%d code=%d pid=%d status=%d\n", - getpid(), signo, info->si_code, info->si_pid, info->si_status); - } - else - { - printf("death_of_child: PID %d received signal=%d (no info?)\n", - getpid(), signo); - } -} -#endif - -static void wakeup_action(int signo, siginfo_t *info, void *ucontext) -{ - sigset_t oldset; - sigset_t allsigs; - int status; - - /* Use of printf in a signal handler is NOT safe! It can cause deadlocks! */ - - printf("wakeup_action: Received signal %d\n" , signo); - - sigreceived = true; - - /* Check signo */ - - if (signo != WAKEUP_SIGNAL) - { - printf("wakeup_action: ERROR expected signo=%d\n" , WAKEUP_SIGNAL); - } - - /* Check siginfo */ - - if (info->si_value.sival_int != SIGVALUE_INT) - { - printf("wakeup_action: ERROR sival_int=%d expected %d\n", - info->si_value.sival_int, SIGVALUE_INT); - } - else - { - printf("wakeup_action: sival_int=%d\n" , info->si_value.sival_int); - } - - if (info->si_signo != WAKEUP_SIGNAL) - { - printf("wakeup_action: ERROR expected si_signo=%d, got=%d\n", - WAKEUP_SIGNAL, info->si_signo); - } - - printf("wakeup_action: si_code=%d\n" , info->si_code); - - /* Check ucontext_t */ - - printf("wakeup_action: ucontext=%p\n" , ucontext); - - /* Check sigprocmask */ - - (void)sigfillset(&allsigs); - status = sigprocmask(SIG_SETMASK, NULL, &oldset); - if (status != OK) - { - printf("wakeup_action: ERROR sigprocmask failed, status=%d\n", - status); - } - - if (oldset != allsigs) - { - printf("wakeup_action: ERROR sigprocmask=%x expected=%x\n", - oldset, allsigs); - } -} - -static int waiter_main(int argc, char *argv[]) -{ - sigset_t sigset; - struct sigaction act; - struct sigaction oact; - int status; - - printf("waiter_main: Waiter started\n" ); - - printf("waiter_main: Unmasking signal %d\n" , WAKEUP_SIGNAL); - (void)sigemptyset(&sigset); - (void)sigaddset(&sigset, WAKEUP_SIGNAL); - status = sigprocmask(SIG_UNBLOCK, &sigset, NULL); - if (status != OK) - { - printf("waiter_main: ERROR sigprocmask failed, status=%d\n", - status); - } - - printf("waiter_main: Registering signal handler\n" ); - act.sa_sigaction = wakeup_action; - act.sa_flags = SA_SIGINFO; - - (void)sigfillset(&act.sa_mask); - (void)sigdelset(&act.sa_mask, WAKEUP_SIGNAL); - - status = sigaction(WAKEUP_SIGNAL, &act, &oact); - if (status != OK) - { - printf("waiter_main: ERROR sigaction failed, status=%d\n" , status); - } - -#ifndef SDCC - printf("waiter_main: oact.sigaction=%p oact.sa_flags=%x oact.sa_mask=%x\n", - oact.sa_sigaction, oact.sa_flags, oact.sa_mask); -#endif - - /* Take the semaphore */ - - printf("waiter_main: Waiting on semaphore\n" ); - FFLUSH(); - - status = sem_wait(&sem); - if (status != 0) - { - int error = errno; - if (error == EINTR) - { - printf("waiter_main: sem_wait() successfully interrupted by signal\n" ); - } - else - { - printf("waiter_main: ERROR sem_wait failed, errno=%d\n" , error); - } - } - else - { - printf("waiter_main: ERROR awakened with no error!\n" ); - } - - /* Detach the signal handler */ - - act.sa_sigaction = SIG_DFL; - status = sigaction(WAKEUP_SIGNAL, &act, &oact); - - printf("waiter_main: done\n" ); - FFLUSH(); - - threadexited = true; - return 0; -} - -void sighand_test(void) -{ -#ifdef CONFIG_SCHED_HAVE_PARENT - struct sigaction act; - struct sigaction oact; - sigset_t sigset; -#endif - struct sched_param param; - union sigval sigvalue; - pid_t waiterpid; - int policy; - int status; - - printf("sighand_test: Initializing semaphore to 0\n" ); - sem_init(&sem, 0, 0); - -#ifdef CONFIG_SCHED_HAVE_PARENT - printf("sighand_test: Unmasking SIGCHLD\n"); - - (void)sigemptyset(&sigset); - (void)sigaddset(&sigset, SIGCHLD); - status = sigprocmask(SIG_UNBLOCK, &sigset, NULL); - if (status != OK) - { - printf("sighand_test: ERROR sigprocmask failed, status=%d\n", - status); - } - - printf("sighand_test: Registering SIGCHLD handler\n" ); - act.sa_sigaction = death_of_child; - act.sa_flags = SA_SIGINFO; - - (void)sigfillset(&act.sa_mask); - (void)sigdelset(&act.sa_mask, SIGCHLD); - - status = sigaction(SIGCHLD, &act, &oact); - if (status != OK) - { - printf("waiter_main: ERROR sigaction failed, status=%d\n" , status); - } -#endif - - /* Start waiter thread */ - - printf("sighand_test: Starting waiter task\n" ); - status = sched_getparam (0, ¶m); - if (status != OK) - { - printf("sighand_test: ERROR sched_getparam() failed\n" ); - param.sched_priority = PTHREAD_DEFAULT_PRIORITY; - } - - policy = sched_getscheduler(0); - if (policy == ERROR) - { - printf("sighand_test: ERROR sched_getscheduler() failed\n" ); - policy = SCHED_FIFO; - } - - waiterpid = task_create("waiter", param.sched_priority, - PTHREAD_STACK_DEFAULT, waiter_main, NULL); - if (waiterpid == ERROR) - { - printf("sighand_test: ERROR failed to start waiter_main\n" ); - } - else - { - printf("sighand_test: Started waiter_main pid=%d\n", waiterpid); - } - - /* Wait a bit */ - - FFLUSH(); - sleep(2); - - /* Then signal the waiter thread. */ - - printf("sighand_test: Signaling pid=%d with signo=%d sigvalue=%d\n", - waiterpid, WAKEUP_SIGNAL, SIGVALUE_INT); - - sigvalue.sival_int = SIGVALUE_INT; -#ifdef CONFIG_CAN_PASS_STRUCTS - status = sigqueue(waiterpid, WAKEUP_SIGNAL, sigvalue); -#else - status = sigqueue(waiterpid, WAKEUP_SIGNAL, sigvalue.sival_ptr); -#endif - if (status != OK) - { - printf("sighand_test: ERROR sigqueue failed\n" ); - task_delete(waiterpid); - } - - /* Wait a bit */ - - FFLUSH(); - sleep(2); - - /* Then check the result */ - - if (!threadexited) - { - printf("sighand_test: ERROR waiter task did not exit\n" ); - } - - if (!sigreceived) - { - printf("sighand_test: ERROR signal handler did not run\n" ); - } - - /* Detach the signal handler */ - -#ifdef CONFIG_SCHED_HAVE_PARENT - act.sa_sigaction = SIG_DFL; - status = sigaction(SIGCHLD, &act, &oact); -#endif - - printf("sighand_test: done\n" ); - FFLUSH(); -} -- cgit v1.2.3