diff options
author | px4dev <px4@purgatory.org> | 2012-08-04 15:12:36 -0700 |
---|---|---|
committer | px4dev <px4@purgatory.org> | 2012-08-04 15:12:36 -0700 |
commit | 8a365179eafdf3aea98e60ab9f5882b200d4c759 (patch) | |
tree | 4f38d6d4cd80bd0b6e22e2bb534c3f117ce44e56 /nuttx/sched/pthread_exit.c | |
download | px4-firmware-8a365179eafdf3aea98e60ab9f5882b200d4c759.tar.gz px4-firmware-8a365179eafdf3aea98e60ab9f5882b200d4c759.tar.bz2 px4-firmware-8a365179eafdf3aea98e60ab9f5882b200d4c759.zip |
Fresh import of the PX4 firmware sources.
Diffstat (limited to 'nuttx/sched/pthread_exit.c')
-rw-r--r-- | nuttx/sched/pthread_exit.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/nuttx/sched/pthread_exit.c b/nuttx/sched/pthread_exit.c new file mode 100644 index 000000000..db51be78f --- /dev/null +++ b/nuttx/sched/pthread_exit.c @@ -0,0 +1,137 @@ +/************************************************************************ + * sched/pthread_exit.c + * + * Copyright (C) 2007, 2009, 2011-2012 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 <stdint.h> +#include <stdlib.h> +#include <unistd.h> +#include <signal.h> +#include <pthread.h> +#include <errno.h> +#include <debug.h> + +#include <nuttx/arch.h> + +#include "pthread_internal.h" + +/************************************************************************ + * Definitions + ************************************************************************/ + +/************************************************************************ + * Private Type Declarations + ************************************************************************/ + +/************************************************************************ + * Global Variables + ************************************************************************/ + +/************************************************************************ + * Private Variables + ************************************************************************/ + +/************************************************************************ + * Private Functions + ************************************************************************/ + +/************************************************************************ + * Public Functions + ************************************************************************/ + +/************************************************************************ + * Name: pthread_exit + * + * Description: + * Terminate execution of a thread started with pthread_create. + * + * Parameters: + * exit_valie + * + * Returned Value: + * None + * + * Assumptions: + * + ************************************************************************/ + +void pthread_exit(FAR void *exit_value) +{ + int error_code = (int)((intptr_t)exit_value); + int status; + + sdbg("exit_value=%p\n", exit_value); + + /* Block any signal actions that would awaken us while were + * are performing the JOIN handshake. + */ + +#ifndef CONFIG_DISABLE_SIGNALS + { + sigset_t set = ALL_SIGNAL_SET; + (void)sigprocmask(SIG_SETMASK, &set, NULL); + } +#endif + + /* Complete pending join operations */ + + status = pthread_completejoin(getpid(), exit_value); + if (status != OK) + { + /* Assume that the join completion failured because this + * not really a pthread. Exit by calling exit() to flush + * and close all file descriptors and calling atexit() + * functions. + */ + + if (error_code == EXIT_SUCCESS) + { + error_code = EXIT_FAILURE; + } + + exit(error_code); + } + + /* Then just exit, retaining all file descriptors and without + * calling atexit() functions. + */ + + _exit(error_code); +} + |