LCOV - code coverage report
Current view: directory - objdir/dist/include - thread_helper.h (source / functions) Found Hit Coverage
Test: app.info Lines: 2 2 100.0 %
Date: 2012-06-02 Functions: 1 1 100.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Mozilla Foundation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2011
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   Ehsan Akhgari <ehsan@mozilla.com>
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      27                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : // Cross-platform lightweight thread local data wrappers
      40                 : 
      41                 : #if defined(XP_WIN)
      42                 :   // This file will get included in any file that wants to add
      43                 :   // a profiler mark. In order to not bring <windows.h> together
      44                 :   // we could include windef.h and winbase.h which are sufficient
      45                 :   // to get the prototypes for the Tls* functions.
      46                 :   // # include <windef.h>
      47                 :   // # include <winbase.h>
      48                 :   // Unfortunately, even including these headers causes
      49                 :   // us to add a bunch of ugly to our namespace. e.g #define CreateEvent CreateEventW
      50                 : extern "C" {
      51                 : __declspec(dllimport) void * __stdcall TlsGetValue(unsigned long);
      52                 : __declspec(dllimport) int __stdcall TlsSetValue(unsigned long, void *);
      53                 : __declspec(dllimport) unsigned long __stdcall TlsAlloc();
      54                 : };
      55                 : #else
      56                 : # include <pthread.h>
      57                 : # include <signal.h>
      58                 : #endif
      59                 : 
      60                 : namespace mozilla {
      61                 : 
      62                 : #if defined(XP_WIN)
      63                 : typedef unsigned long sig_safe_t;
      64                 : #else
      65                 : typedef sig_atomic_t sig_safe_t;
      66                 : #endif
      67                 : 
      68                 : namespace tls {
      69                 : 
      70                 : #if defined(XP_WIN)
      71                 : 
      72                 : typedef unsigned long key;
      73                 : 
      74                 : template <typename T>
      75                 : inline T* get(key mykey) {
      76                 :   return (T*) TlsGetValue(mykey);
      77                 : }
      78                 : 
      79                 : template <typename T>
      80                 : inline bool set(key mykey, const T* value) {
      81                 :   return TlsSetValue(mykey, const_cast<T*>(value));
      82                 : }
      83                 : 
      84                 : inline bool create(key* mykey) {
      85                 :   key newkey = TlsAlloc();
      86                 :   if (newkey == (unsigned long)0xFFFFFFFF /* TLS_OUT_OF_INDEXES */) {
      87                 :     return false;
      88                 :   }
      89                 :   *mykey = newkey;
      90                 :   return true;
      91                 : }
      92                 : 
      93                 : #else
      94                 : 
      95                 : typedef pthread_key_t key;
      96                 : 
      97                 : template <typename T>
      98              23 : inline T* get(key mykey) {
      99              23 :   return (T*) pthread_getspecific(mykey);
     100                 : }
     101                 : 
     102                 : template <typename T>
     103                 : inline bool set(key mykey, const T* value) {
     104                 :   return !pthread_setspecific(mykey, value);
     105                 : }
     106                 : 
     107                 : inline bool create(key* mykey) {
     108                 :   return !pthread_key_create(mykey, NULL);
     109                 : }
     110                 : 
     111                 : #endif
     112                 : 
     113                 : }
     114                 : 
     115                 : }
     116                 :  

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