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Diffstat (limited to 'apps/examples/ostest/sighand.c')
-rw-r--r--apps/examples/ostest/sighand.c330
1 files changed, 0 insertions, 330 deletions
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 <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.
- *
- ***********************************************************************/
-
-#include <sys/types.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <semaphore.h>
-#include <signal.h>
-#include <sched.h>
-#include <errno.h>
-#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, &param);
- 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();
-}
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