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Made use of atomic variables

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In order to replace mutex-protected integer values (Performance
improvement)


Former-commit-id: d40ed2444111f00dab372f2371fe91cfd9cd2472
This commit is contained in:
Lynix
2013-05-03 23:12:58 +02:00
parent aa1399b750
commit 459c7a4d07
8 changed files with 41 additions and 118 deletions
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7
include/Nazara/Core/Resource.hpp
View File

@@ -8,6 +8,7 @@
#define NAZARA_RESOURCE_HPP
#include <Nazara/Prerequesites.hpp>
#include <atomic>
#include <set>
#if NAZARA_CORE_THREADSAFE && NAZARA_THREADSAFETY_RESOURCE
@@ -52,7 +53,7 @@ class NAZARA_API NzResource
bool RemoveResourceListener(NzResourceListener* listener) const;
bool RemoveResourceReference() const;
void SetPersistent(bool persistent = true, bool checkReferenceCount = false);
bool SetPersistent(bool persistent = true, bool checkReferenceCount = false);
protected:
void NotifyCreated();
@@ -67,8 +68,8 @@ class NAZARA_API NzResource
mutable std::set<NzResourceEntry> m_resourceListeners;
mutable std::set<NzResourceEntry> m_resourceListenersCache;
mutable bool m_resourceListenerUpdated;
bool m_resourcePersistent;
mutable unsigned int m_resourceReferenceCount;
std::atomic_bool m_resourcePersistent;
mutable std::atomic_uint m_resourceReferenceCount;
};
#endif // NAZARA_RESOURCE_HPP

15
include/Nazara/Core/String.hpp
View File

@@ -9,16 +9,11 @@
#include <Nazara/Prerequesites.hpp>
#include <Nazara/Core/Hashable.hpp>
#include <atomic>
#include <iosfwd>
#include <string>
#include <vector>
#if NAZARA_CORE_THREADSAFE && NAZARA_THREADSAFETY_STRING
#include <Nazara/Core/ThreadSafety.hpp>
#else
#include <Nazara/Core/ThreadSafetyOff.hpp>
#endif
class NzAbstractHash;
class NzHashDigest;
@@ -282,7 +277,10 @@ class NAZARA_API NzString : public NzHashable
struct NAZARA_API SharedString
{
SharedString() = default;
SharedString() :
refCount(1)
{
}
SharedString(unsigned short referenceCount, unsigned int bufferSize, unsigned int stringSize, char* str) :
capacity(bufferSize),
@@ -296,8 +294,7 @@ class NAZARA_API NzString : public NzHashable
unsigned int size;
char* string;
unsigned short refCount = 1;
NazaraMutex(mutex)
std::atomic_ushort refCount;
};
static SharedString emptyString;