Differential D10164 Diff 30105 src/script/scriptcache.h

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src/script/scriptcache.h

	// Copyright (c) 2017 The Bitcoin developers			// Copyright (c) 2017 The Bitcoin developers
	// Distributed under the MIT software license, see the accompanying			// Distributed under the MIT software license, see the accompanying
	// file COPYING or http://www.opensource.org/licenses/mit-license.php.			// file COPYING or http://www.opensource.org/licenses/mit-license.php.

	#ifndef BITCOIN_SCRIPT_SCRIPTCACHE_H			#ifndef BITCOIN_SCRIPT_SCRIPTCACHE_H
	#define BITCOIN_SCRIPT_SCRIPTCACHE_H			#define BITCOIN_SCRIPT_SCRIPTCACHE_H

	#include <array>			#include <array>
	#include <cstdint>			#include <cstdint>

				#include <sync.h>

				// Actually declared in validation.cpp; can't include because of circular
				// dependency.
				extern RecursiveMutex cs_main;

	class CTransaction;			class CTransaction;

	/**			/**
	* The script cache is a map using a key/value element, that caches the			* The script cache is a map using a key/value element, that caches the
	* success of executing a specific transaction's input scripts under a			* success of executing a specific transaction's input scripts under a
	* specific set of flags, along with any associated information learned			* specific set of flags, along with any associated information learned
	* during execution.			* during execution.
	*			*
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	/** Initializes the script-execution cache */			/** Initializes the script-execution cache */
	void InitScriptExecutionCache();			void InitScriptExecutionCache();

	/**			/**
	* Check if a given key is in the cache, and if so, return its values.			* Check if a given key is in the cache, and if so, return its values.
	* (if not found, nSigChecks may or may not be set to an arbitrary value)			* (if not found, nSigChecks may or may not be set to an arbitrary value)
	*/			*/
	bool IsKeyInScriptCache(ScriptCacheKey key, bool erase, int &nSigChecksOut);			bool IsKeyInScriptCache(ScriptCacheKey key, bool erase, int &nSigChecksOut)
				EXCLUSIVE_LOCKS_REQUIRED(cs_main);

	/**			/**
	* Add an entry in the cache.			* Add an entry in the cache.
	*/			*/
	void AddKeyInScriptCache(ScriptCacheKey key, int nSigChecks);			void AddKeyInScriptCache(ScriptCacheKey key, int nSigChecks)
				EXCLUSIVE_LOCKS_REQUIRED(cs_main);

	#endif // BITCOIN_SCRIPT_SCRIPTCACHE_H			#endif // BITCOIN_SCRIPT_SCRIPTCACHE_H