Differential D3095 Diff 13950 source/scriptinterface/ScriptContext.h

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source/scriptinterface/ScriptContext.h

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#ifndef INCLUDED_SCRIPTCONTEXT		#ifndef INCLUDED_SCRIPTCONTEXT
#define INCLUDED_SCRIPTCONTEXT		#define INCLUDED_SCRIPTCONTEXT

#include "ScriptTypes.h"		#include "ScriptTypes.h"
#include "ScriptExtraHeaders.h"		#include "ScriptExtraHeaders.h"

#include <sstream>		#include <sstream>

constexpr int STACK_CHUNK_SIZE = 8192;

// Those are minimal defaults. The runtime for the main game is larger and GCs upon a larger growth.		// Those are minimal defaults. The runtime for the main game is larger and GCs upon a larger growth.
constexpr int DEFAULT_CONTEXT_SIZE = 16 * 1024 * 1024;		constexpr int DEFAULT_CONTEXT_SIZE = 16 * 1024 * 1024;
constexpr int DEFAULT_HEAP_GROWTH_BYTES_GCTRIGGER = 2 * 1024 * 1024;		constexpr int DEFAULT_HEAP_GROWTH_BYTES_GCTRIGGER = 2 * 1024 * 1024;

/**		/**
* Abstraction around a SpiderMonkey JSRuntime/JSContext.		* Abstraction around a SpiderMonkey JSContext.
*		*
* A single ScriptContext, with the associated runtime and context,		* A single ScriptContext, with the associated context,
* should only be used on a single thread.		* should only be used on a single thread.
*		*
* (One means to share data between threads and contexts is to create		* (One means to share data between threads and contexts is to create
* a ScriptInterface::StructuredClone.)		* a ScriptInterface::StructuredClone.)
*/		*/

class ScriptContext		class ScriptContext
{		{
Show All 27 Lines	public:
void ShrinkingGC();		void ShrinkingGC();

/**		/**
* This is used to keep track of compartments which should be prepared for a GC.		* This is used to keep track of compartments which should be prepared for a GC.
*/		*/
void RegisterCompartment(JSCompartment* cmpt);		void RegisterCompartment(JSCompartment* cmpt);
void UnRegisterCompartment(JSCompartment* cmpt);		void UnRegisterCompartment(JSCompartment* cmpt);

JSRuntime* GetJSRuntime() const { return m_rt; }

/**		/**
* GetGeneralJSContext returns the context without starting a GC request and without		* GetGeneralJSContext returns the context without starting a GC request and without
* entering any compartment. It should only be used in specific situations, such as		* entering any compartment. It should only be used in specific situations, such as
* creating a new compartment, or as an unsafe alternative to GetJSRuntime.		* creating a new compartment, or when initializing a persistent rooted.
* If you need the compartmented context of a ScriptInterface, you should create a		* If you need the compartmented context of a ScriptInterface, you should create a
* ScriptRequest and use the context from that.		* ScriptRequest and use the context from that.
*/		*/
JSContext* GetGeneralJSContext() const { return m_cx; }		JSContext* GetGeneralJSContext() const { return m_cx; }

private:		private:

JSRuntime* m_rt;
JSContext* m_cx;		JSContext* m_cx;

void PrepareCompartmentsForIncrementalGC() const;		void PrepareCompartmentsForIncrementalGC() const;
std::list<JSCompartment*> m_Compartments;		std::list<JSCompartment*> m_Compartments;

int m_ContextSize;		int m_ContextSize;
int m_HeapGrowthBytesGCTrigger;		int m_HeapGrowthBytesGCTrigger;
int m_LastGCBytes;		int m_LastGCBytes;
double m_LastGCCheck;		double m_LastGCCheck;
};		};

#endif // INCLUDED_SCRIPTCONTEXT		#endif // INCLUDED_SCRIPTCONTEXT