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QoreThreadLocalStorage.h
/* -*- mode: c++; indent-tabs-mode: nil -*- */
/*
QoreThreadLocalStorage.h
Qore Programming Language
Copyright (C) 2003 - 2015 David Nichols
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
Note that the Qore library is released under a choice of three open-source
licenses: MIT (as above), LGPL 2+, or GPL 2+; see README-LICENSE for more
information.
*/
#ifndef _QORE_QORETHREADLOCALSTORAGE_H
#define _QORE_QORETHREADLOCALSTORAGE_H
#include <pthread.h>
#include <assert.h>
template<typename T>
class QoreThreadLocalStorage {
protected:
pthread_key_t key;
DLLLOCAL QoreThreadLocalStorage(const QoreThreadLocalStorage&);
DLLLOCAL QoreThreadLocalStorage& operator=(const QoreThreadLocalStorage&);
public:
DLLLOCAL QoreThreadLocalStorage() {
create();
}
DLLLOCAL ~QoreThreadLocalStorage() {
destroy();
}
DLLLOCAL void create() {
pthread_key_create(&key, 0);
}
DLLLOCAL void destroy() {
pthread_key_delete(key);
}
DLLLOCAL T *get() {
return (T *)pthread_getspecific(key);
}
DLLLOCAL void set(T *ptr) {
#ifndef DEBUG
pthread_setspecific(key, (void *)ptr);
#else
int rc = pthread_setspecific(key, (void *)ptr);
assert(!rc);
#endif
}
};
#endif // _QORE_QORETHREADLOCALSTORAGE_H
QoreThreadLocalStorage
provides access to thread-local storage
Definition: QoreThreadLocalStorage.h:44
QoreThreadLocalStorage::operator=
DLLLOCAL QoreThreadLocalStorage & operator=(const QoreThreadLocalStorage &)
this function is not implemented; it is here as a private function in order to prohibit it from being...
QoreThreadLocalStorage::QoreThreadLocalStorage
DLLLOCAL QoreThreadLocalStorage()
creates the key
Definition: QoreThreadLocalStorage.h:57
QoreThreadLocalStorage::destroy
DLLLOCAL void destroy()
destroys the key
Definition: QoreThreadLocalStorage.h:72
QoreThreadLocalStorage::create
DLLLOCAL void create()
creates the key
Definition: QoreThreadLocalStorage.h:67
QoreThreadLocalStorage::~QoreThreadLocalStorage
DLLLOCAL ~QoreThreadLocalStorage()
destroys the key
Definition: QoreThreadLocalStorage.h:62
QoreThreadLocalStorage::key
pthread_key_t key
the actual thread local storage key wrapped in this class
Definition: QoreThreadLocalStorage.h:47
QoreThreadLocalStorage::set
DLLLOCAL void set(T *ptr)
sets the key&#39;s value
Definition: QoreThreadLocalStorage.h:82