85 lines
1.9 KiB
C++
85 lines
1.9 KiB
C++
//
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// ThreadLocalStorage.h
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// OpenSpades
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//
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// Created by yvt on 7/29/13.
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// Copyright (c) 2013 yvt.jp. All rights reserved.
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//
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#pragma once
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#include "Exception.h"
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#include <string>
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namespace spades {
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class ThreadLocalStorageImpl {
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public:
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class IValueDestructor {
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public:
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virtual void Destruct(void *) = 0;
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};
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IValueDestructor *destructor;
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virtual ~ThreadLocalStorageImpl(){}
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static ThreadLocalStorageImpl *Create();
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virtual void Set(void *) = 0;
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virtual void *Get() = 0;
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};
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template<typename T>
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class ThreadLocalStorage: public ThreadLocalStorageImpl::IValueDestructor {
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ThreadLocalStorageImpl *internal;
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std::string name;
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public:
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ThreadLocalStorage():name("(unnamed)"){
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internal = ThreadLocalStorageImpl::Create();
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internal->destructor = this;
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}
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ThreadLocalStorage(std::string name):name(name){
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internal = ThreadLocalStorageImpl::Create();
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internal->destructor = this;
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}
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virtual ~ThreadLocalStorage(){
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// FIXME: should support deleting tls?
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}
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void operator =(T *ptr) {
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internal->Set(reinterpret_cast<void*>(ptr));
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}
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T *GetPointer() {
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return reinterpret_cast<T *>(internal->Get());
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}
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T& operator *() {
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T *v = GetPointer();
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if(v == NULL)
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SPRaise("Attempted to get a reference to the null value of TLS '%s'", name.c_str());
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return *v;
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}
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T *operator ->(){
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return GetPointer();
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}
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operator T *(){
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return GetPointer();
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}
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virtual void Destruct(void *) {
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}
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};
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template<typename T>
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class AutoDeletedThreadLocalStorage: public ThreadLocalStorage<T> {
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public:
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AutoDeletedThreadLocalStorage():
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ThreadLocalStorage<T>(){}
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AutoDeletedThreadLocalStorage(std::string name):
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ThreadLocalStorage<T>(name){}
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virtual void Destruct(void *v) {
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delete reinterpret_cast<T *>(v);
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}
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void operator =(T *ptr) {
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*static_cast<ThreadLocalStorage<T> *>(this) = ptr;
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}
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};
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void ThreadExiting();
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}
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