mirror of https://github.com/PCSX2/pcsx2.git
85 lines
1.7 KiB
C++
85 lines
1.7 KiB
C++
/* PCSX2 - PS2 Emulator for PCs
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* Copyright (C) 2002-2014 David Quintana [gigaherz]
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*
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with PCSX2.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <windows.h>
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//a simple, mt-safe fifo template class
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template<typename T>
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class mtfifo
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{
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struct container
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{
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container(container* n,T d)
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{
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next=n;
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data=d;
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}
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container* next;T data;
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};
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container* start;
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container* end;
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CRITICAL_SECTION cs;
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public:
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mtfifo()
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{
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InitializeCriticalSection(&cs);
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}
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~mtfifo()
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{
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//no need to destroy the CS? i cant remember realy .. ;p
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}
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void put(T data)
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{
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EnterCriticalSection(&cs);
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if (end==0)
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{
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end=start=new container(0,data);
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}
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else
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{
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end=end->next=new container(0,data);
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}
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LeaveCriticalSection(&cs);
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}
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//Note, this is partialy mt-safe, the get may fail even if that returned false
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bool empty(){ return start==0;}
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bool get(T& rvi)
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{
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container* rv;
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EnterCriticalSection(&cs);
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if (start==0)
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{
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rv=0; //error
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}
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else
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{
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rv=start;
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start=rv->next;
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if (!start)
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end=0; //last item
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}
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LeaveCriticalSection(&cs);
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if(!rv)
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return false;
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rvi=rv->data;
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delete rv;
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return true;
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}
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}; |