52 lines
1.0 KiB
C++
52 lines
1.0 KiB
C++
// query.cpp
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#include "stdafx.h"
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#include "query.h"
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#include "pdfile.h"
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#include "jsobj.h"
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#include "../util/builder.h"
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int nextCursorId = 1;
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QueryResult* runQuery(const char *ns, int ntoreturn, JSObj jsobj) {
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cout << "runQuery ns:" << ns << " ntoreturn:" << ntoreturn << " queryobjsize:" <<
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jsobj.objsize() << endl;
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/* temp implementation -- just returns everything! */
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BufBuilder b;
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JSMatcher matcher(jsobj);
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QueryResult *qr = 0;
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b.skip(sizeof(QueryResult));
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int n = 0;
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Cursor c = theDataFileMgr.findAll(ns);
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while( c.ok() ) {
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Record *r = c.current();
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JSObj js(r);
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if( matcher.matches(js) ) {
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b.append(r->netLength()+4);
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b.append(r->data, r->netLength());
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n++;
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if( n >= ntoreturn && ntoreturn != 0 )
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break;
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}
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c.advance();
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}
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qr = (QueryResult *) b.buf();
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qr->len = b.len();
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qr->reserved = 0;
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qr->operation = opReply;
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qr->cursorId = 0; //nextCursorId++;
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qr->startingFrom = 0;
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qr->nReturned = n;
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b.decouple();
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return qr;
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}
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