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39 lines
1.0 KiB
C++
39 lines
1.0 KiB
C++
// strategy.h
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#pragma once
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#include "../stdafx.h"
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#include "chunk.h"
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#include "request.h"
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namespace mongo {
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class Strategy {
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public:
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Strategy(){}
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virtual ~Strategy() {}
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virtual void queryOp( Request& r ) = 0;
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virtual void getMore( Request& r ) = 0;
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virtual void writeOp( int op , Request& r ) = 0;
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protected:
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void doWrite( int op , Request& r , string server );
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void doQuery( Request& r , string server );
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void insert( string server , const char * ns , const BSONObj& obj );
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};
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extern Strategy * SINGLE;
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extern Strategy * SHARDED;
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void checkShardVersion( DBClientBase & conn , const string& ns , bool authoritative = false );
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bool setShardVersion( DBClientBase & conn , const string& ns , ShardChunkVersion version , bool authoritative , BSONObj& result );
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bool lockNamespaceOnServer( const string& server , const string& ns );
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bool lockNamespaceOnServer( DBClientBase& conn , const string& ns );
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}
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