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48 lines
896 B
C++
48 lines
896 B
C++
// Wraps an SDL mutex object. (A critical section is a Windows synchronization
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// object similar to a mutex but optimized for access by threads belonging to
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// only one process, hence the class name.)
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#ifndef CRITSEC_H
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#define CRITSEC_H
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#include "SDL.h"
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#include "SDL_thread.h"
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#include "i_system.h"
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class FCriticalSection
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{
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public:
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FCriticalSection()
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{
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CritSec = SDL_CreateMutex();
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if (CritSec == NULL)
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{
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I_FatalError("Failed to create a critical section mutex.");
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}
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}
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~FCriticalSection()
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{
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if (CritSec != NULL)
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{
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SDL_DestroyMutex(CritSec);
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}
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}
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void Enter()
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{
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if (SDL_mutexP(CritSec) != 0)
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{
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I_FatalError("Failed entering a critical section.");
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}
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}
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void Leave()
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{
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if (SDL_mutexV(CritSec) != 0)
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{
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I_FatalError("Failed to leave a critical section.");
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}
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}
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private:
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SDL_mutex *CritSec;
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};
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#endif
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