94 lines
1.9 KiB
C
94 lines
1.9 KiB
C
/*
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* Copyright (C) 2009-2012 Tobias Brunner
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* HSR Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#define _GNU_SOURCE
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#include <pthread.h>
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#include <library.h>
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#include "thread_value.h"
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typedef struct private_thread_value_t private_thread_value_t;
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struct private_thread_value_t {
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/**
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* Public interface.
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*/
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thread_value_t public;
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/**
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* Key to access thread-specific values.
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*/
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pthread_key_t key;
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/**
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* Destructor to cleanup the value of the thread destroying this object
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*/
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thread_cleanup_t destructor;
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};
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METHOD(thread_value_t, set, void,
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private_thread_value_t *this, void *val)
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{
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pthread_setspecific(this->key, val);
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}
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METHOD(thread_value_t, get, void*,
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private_thread_value_t *this)
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{
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return pthread_getspecific(this->key);
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}
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METHOD(thread_value_t, destroy, void,
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private_thread_value_t *this)
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{
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void *val;
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/* the destructor is not called automatically for the thread calling
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* pthread_key_delete() */
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if (this->destructor)
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{
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val = pthread_getspecific(this->key);
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if (val)
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{
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this->destructor(val);
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}
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}
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pthread_key_delete(this->key);
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free(this);
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}
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/**
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* Described in header.
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*/
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thread_value_t *thread_value_create(thread_cleanup_t destructor)
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{
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private_thread_value_t *this;
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INIT(this,
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.public = {
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.set = _set,
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.get = _get,
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.destroy = _destroy,
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},
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.destructor = destructor,
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);
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pthread_key_create(&this->key, destructor);
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return &this->public;
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}
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