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https://github.com/mongodb/mongo.git
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87 lines
2.1 KiB
C++
87 lines
2.1 KiB
C++
/**
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* Copyright (C) 2008 10gen Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "storage.h"
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#include "jsobj.h"
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#include "namespace.h"
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class DbMessage {
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public:
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DbMessage(Message& _m) : m(_m) {
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theEnd = _m.data->_data + _m.data->dataLen();
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int *r = (int *) _m.data->_data;
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reserved = *r;
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r++;
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data = (const char *) r;
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nextjsobj = data;
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}
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const char * getns() { return data; }
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void getns(Namespace& ns) {
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ns = data;
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}
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int pullInt() {
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if( nextjsobj == data )
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nextjsobj += strlen(data) + 1; // skip namespace
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int i = *((int *)nextjsobj);
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nextjsobj += 4;
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return i;
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}
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long long pullInt64() {
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if( nextjsobj == data )
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nextjsobj += strlen(data) + 1; // skip namespace
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long long i = *((long long *)nextjsobj);
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nextjsobj += 8;
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return i;
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}
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OID* getOID() {
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return (OID *) (data + strlen(data) + 1); // skip namespace
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}
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void getQueryStuff(const char *&query, int& ntoreturn) {
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int *i = (int *) (data + strlen(data) + 1);
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ntoreturn = *i;
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i++;
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query = (const char *) i;
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}
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/* for insert and update msgs */
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bool moreJSObjs() { return nextjsobj != 0; }
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JSObj nextJsObj() {
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if( nextjsobj == data )
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nextjsobj += strlen(data) + 1; // skip namespace
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JSObj js(nextjsobj);
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assert( js.objsize() < ( theEnd - data ) );
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if( js.objsize() <= 0 )
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nextjsobj = null;
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else {
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nextjsobj += js.objsize();
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if( nextjsobj >= theEnd )
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nextjsobj = 0;
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}
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return js;
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}
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private:
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Message& m;
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int reserved;
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const char *data;
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const char *nextjsobj;
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const char *theEnd;
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};
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