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// dbmessage.cpp
/* Copyright 2009 10gen Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "pch.h"
#include "dbmessage.h"
namespace mongo {
string Message::toString() const {
stringstream ss;
ss << "op: " << opToString( operation() ) << " len: " << size();
if ( operation() >= 2000 && operation() < 2100 ) {
DbMessage d(*this);
ss << " ns: " << d.getns();
switch ( operation() ) {
case dbUpdate: {
int flags = d.pullInt();
BSONObj q = d.nextJsObj();
BSONObj o = d.nextJsObj();
ss << " flags: " << flags << " query: " << q << " update: " << o;
break;
}
case dbInsert:
ss << d.nextJsObj();
break;
case dbDelete: {
int flags = d.pullInt();
BSONObj q = d.nextJsObj();
ss << " flags: " << flags << " query: " << q;
break;
}
default:
ss << " CANNOT HANDLE YET";
}
}
return ss.str();
}
void replyToQuery(int queryResultFlags,
AbstractMessagingPort* p, Message& requestMsg,
void *data, int size,
int nReturned, int startingFrom,
long long cursorId
) {
BufBuilder b(32768);
b.skip(sizeof(QueryResult));
b.appendBuf(data, size);
QueryResult *qr = (QueryResult *) b.buf();
qr->_resultFlags() = queryResultFlags;
qr->len = b.len();
qr->setOperation(opReply);
qr->cursorId = cursorId;
qr->startingFrom = startingFrom;
qr->nReturned = nReturned;
b.decouple();
Message resp(qr, true);
p->reply(requestMsg, resp, requestMsg.header()->id);
}
void replyToQuery(int queryResultFlags,
AbstractMessagingPort* p, Message& requestMsg,
const BSONObj& responseObj) {
replyToQuery(queryResultFlags,
p, requestMsg,
(void *) responseObj.objdata(), responseObj.objsize(), 1);
}
void replyToQuery( int queryResultFlags, Message &m, DbResponse &dbresponse, BSONObj obj ) {
Message *resp = new Message();
replyToQuery( queryResultFlags, *resp, obj );
dbresponse.response = resp;
dbresponse.responseTo = m.header()->id;
}
void replyToQuery( int queryResultFlags, Message& response, const BSONObj& resultObj ) {
BufBuilder bufBuilder;
bufBuilder.skip( sizeof( QueryResult ));
bufBuilder.appendBuf( reinterpret_cast< void *>(
const_cast< char* >( resultObj.objdata() )), resultObj.objsize() );
QueryResult* queryResult = reinterpret_cast< QueryResult* >( bufBuilder.buf() );
bufBuilder.decouple();
queryResult->_resultFlags() = queryResultFlags;
queryResult->len = bufBuilder.len();
queryResult->setOperation( opReply );
queryResult->cursorId = 0;
queryResult->startingFrom = 0;
queryResult->nReturned = 1;
response.setData( queryResult, true ); // transport will free
}
}
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