зеркало из https://github.com/mozilla/gecko-dev.git
117 строки
3.4 KiB
C++
117 строки
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2011
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Ehsan Akhgari <ehsan@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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// Cross-platform lightweight thread local data wrappers
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#if defined(XP_WIN)
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// This file will get included in any file that wants to add
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// a profiler mark. In order to not bring <windows.h> together
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// we could include windef.h and winbase.h which are sufficient
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// to get the prototypes for the Tls* functions.
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// # include <windef.h>
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// # include <winbase.h>
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// Unfortunately, even including these headers causes
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// us to add a bunch of ugly to our namespace. e.g #define CreateEvent CreateEventW
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extern "C" {
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__declspec(dllimport) void * __stdcall TlsGetValue(unsigned long);
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__declspec(dllimport) int __stdcall TlsSetValue(unsigned long, void *);
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__declspec(dllimport) unsigned long __stdcall TlsAlloc();
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};
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#else
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# include <pthread.h>
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# include <signal.h>
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#endif
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namespace mozilla {
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#if defined(XP_WIN)
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typedef unsigned long sig_safe_t;
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#else
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typedef sig_atomic_t sig_safe_t;
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#endif
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namespace tls {
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#if defined(XP_WIN)
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typedef unsigned long key;
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template <typename T>
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inline T* get(key mykey) {
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return (T*) TlsGetValue(mykey);
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}
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template <typename T>
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inline bool set(key mykey, const T* value) {
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return TlsSetValue(mykey, const_cast<T*>(value));
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}
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inline bool create(key* mykey) {
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key newkey = TlsAlloc();
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if (newkey == (unsigned long)0xFFFFFFFF /* TLS_OUT_OF_INDEXES */) {
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return false;
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}
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*mykey = newkey;
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return true;
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}
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#else
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typedef pthread_key_t key;
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template <typename T>
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inline T* get(key mykey) {
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return (T*) pthread_getspecific(mykey);
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}
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template <typename T>
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inline bool set(key mykey, const T* value) {
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return !pthread_setspecific(mykey, value);
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}
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inline bool create(key* mykey) {
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return !pthread_key_create(mykey, NULL);
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}
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#endif
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}
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}
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