2
* Copyright (c) 2005, Eric Crahen
4
* Permission is hereby granted, free of charge, to any person obtaining a copy
5
* of this software and associated documentation files (the "Software"), to deal
6
* in the Software without restriction, including without limitation the rights
7
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8
* copies of the Software, and to permit persons to whom the Software is furnished
9
* to do so, subject to the following conditions:
11
* The above copyright notice and this permission notice shall be included in all
12
* copies or substantial portions of the Software.
14
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
18
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26
#include "zthread/NonCopyable.h"
27
#include "zthread/Exceptions.h"
30
#include <CoreServices/CoreServices.h>
31
//#include <Multiprocessing.h>
37
* @author Eric Crahen <http://www.code-foo.com>
38
* @date <2003-07-27T14:19:10-0400>
41
* An abstraction for dealing with POSIX thread specific storage (tss).
42
* Provides get/set and creation/destruction.
45
class TSS : private NonCopyable {
47
TaskStorageIndex _key;
52
* Create a new object for accessing tss.
57
static bool init = MPLibraryIsLoaded();
59
if(!init || MPAllocateTaskStorageIndex(&_key) != noErr) {
61
throw Initialization_Exception();
67
* Destroy the underlying supoprt for accessing tss with this
72
OSStatus status = MPDeallocateTaskStorageIndex(_key);
79
* Get the value stored in tss.
83
* @exception InvalidOp_exception thrown when the tss is not properly initialized
86
return reinterpret_cast<T>(MPGetTaskStorageValue(_key));
91
* Store a value in tss.
96
* @exception InvalidOp_exception thrown when the tss is not properly initialized
98
T set(T value) const {
103
MPSetTaskStorageValue(_key, reinterpret_cast<TaskStorageValue>(value));
105
if(status != noErr) {
107
throw Synchronization_Exception();