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77 lines
2.0 KiB
C
77 lines
2.0 KiB
C
/*
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* Copyright (C) 2014 René Kijewski <rene.kijewski@fu-berlin.de>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup pthread
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* @{
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* @file
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* @brief Thread cancellation features.
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* @note None of these functions are implemented, yet.
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* @note Do not include this header file directly, but pthread.h.
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*/
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#ifndef PTHREAD_CANCELLATION_H
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#define PTHREAD_CANCELLATION_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define PTHREAD_CANCEL_DISABLE 0
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#define PTHREAD_CANCEL_ENABLE 1
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#define PTHREAD_CANCEL_DEFERRED 0
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#define PTHREAD_CANCEL_ASYNCHRONOUS 1
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/**
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* @brief Thread exit status after a canceled thread has terminated.
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*/
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#define PTHREAD_CANCELED ((void *) -2)
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/**
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* @brief Cancellation point are not supported, yet.
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* @param[in] state Unused
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* @param[out] oldstate Unused
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* @returns `-1`, this invocation fails
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*/
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int pthread_setcancelstate(int state, int *oldstate);
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/**
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* @brief Cancellation point are not supported, yet.
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* @param[in] type Unused
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* @param[out] oldtype Unused
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* @returns `-1`, this invocation fails
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*/
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int pthread_setcanceltype(int type, int *oldtype);
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/**
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* @brief Tells a pthread that it should exit.
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* @note Cancellation points are not supported, yet.
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* @details A pthread `th` can call pthread_testcancel().
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* If pthread_cancel(th) was called before, it will exit then.
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* @param[in] th Pthread to tell that it should cancel.
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* @returns `-1`, this invocation fails
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*/
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int pthread_cancel(pthread_t th);
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/**
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* @brief Exit the current pthread if pthread_cancel() was called for this thread before.
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* @details If pthread_cancel() called before, the current thread exits with with the code #PTHREAD_CANCELED.
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*/
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void pthread_testcancel(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* PTHREAD_CANCELLATION_H */
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/**
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* @}
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*/
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