gecko/tools/profiler/thread_helper.h
Benoit Girard af561ad0ae Bug 722124 - Profiler cleanup. r=ehsan
--HG--
rename : tools/profiler/sps/TableTicker.cpp => tools/profiler/TableTicker.cpp
rename : tools/profiler/public/nsIProfiler.idl => tools/profiler/nsIProfiler.idl
rename : tools/profiler/sps/platform-linux.cc => tools/profiler/platform-linux.cc
rename : tools/profiler/sps/platform-win32.cc => tools/profiler/platform-win32.cc
rename : tools/profiler/sps/platform.h => tools/profiler/platform.h
rename : tools/profiler/sps/shared-libraries-linux.cc => tools/profiler/shared-libraries-linux.cc
rename : tools/profiler/sps/shared-libraries-macos.cc => tools/profiler/shared-libraries-macos.cc
rename : tools/profiler/sps/shared-libraries-win32.cc => tools/profiler/shared-libraries-win32.cc
rename : tools/profiler/sps/shared-libraries.h => tools/profiler/shared-libraries.h
rename : tools/profiler/sps/sps_sampler.h => tools/profiler/sps_sampler.h
rename : tools/profiler/sps/thread_helper.h => tools/profiler/thread_helper.h
rename : tools/profiler/sps/v8-support.h => tools/profiler/v8-support.h
2012-01-29 01:56:41 -05:00

117 lines
3.4 KiB
C++

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