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// dbgrid.cpp
/**
* Copyright (C) 2008 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "stdafx.h"
#include "../grid/message.h"
#include "../util/unittest.h"
#include "../client/connpool.h"
#include "gridconfig.h"
namespace mongo {
bool dashDashInfer = false;
vector<string> dashDashGridDb;
int port = 27017;
const char *curNs = "";
Database *database = 0;
string getDbContext() {
return "?";
}
#if !defined(_WIN32)
} // namespace mongo
#include <signal.h>
namespace mongo {
void pipeSigHandler( int signal ) {
psignal( signal, "Signal Received : ");
}
#else
void setupSignals() {}
#endif
void usage() {
cout << "Mongo dbgrid usage:\n\n";
cout << " --port <portno>\n";
cout << " --griddb <griddbname> [<griddbname>...]\n";
cout << " --infer infer griddbname by replacing \"-n<n>\"\n";
cout << " in our hostname with \"-grid\".\n";
cout << endl;
}
MessagingPort *grab = 0;
void processRequest(Message&, MessagingPort&);
void _dbGridConnThread() {
MessagingPort& dbMsgPort = *grab;
grab = 0;
Message m;
while ( 1 ) {
m.reset();
if ( !dbMsgPort.recv(m) ) {
log() << "end connection " << dbMsgPort.farEnd.toString() << endl;
dbMsgPort.shutdown();
break;
}
processRequest(m, dbMsgPort);
}
}
void dbGridConnThread() {
MessagingPort *p = grab;
try {
_dbGridConnThread();
} catch ( ... ) {
problem() << "uncaught exception in dbgridconnthread, closing connection" << endl;
delete p;
}
}
class DbGridListener : public Listener {
public:
DbGridListener(int p) : Listener(p) { }
virtual void accepted(MessagingPort *mp) {
assert( grab == 0 );
grab = mp;
boost::thread thr(dbGridConnThread);
while ( grab )
sleepmillis(1);
}
};
void start() {
gridDatabase.init();
/*
try {
cout << "TEMP" << endl;
{
ScopedDbConnection c("localhost");
cout << c.conn().findOne("dwight.bar", emptyObj).toString() << endl;
c.done();
cout << "OK1" << endl;
}
{
ScopedDbConnection c("localhost");
c.conn().findOne("dwight.bar", emptyObj);
c.done();
cout << "OK1" << endl;
}
cout << "OK2" << endl;
} catch(...) {
cout << "exception" << endl;
}
*/
log() << "waiting for connections on port " << port << "..." << endl;
DbGridListener l(port);
l.listen();
}
} // namespace mongo
using namespace mongo;
int main(int argc, char* argv[], char *envp[] ) {
#if !defined(_WIN32)
signal(SIGPIPE, pipeSigHandler);
#endif
if ( argc <= 1 ) {
usage();
return 3;
}
for (int i = 1; i < argc; i++) {
if ( argv[i] == 0 ) continue;
string s = argv[i];
if ( s == "--port" ) {
port = atoi(argv[++i]);
}
else if ( s == "--infer" ) {
dashDashInfer = true;
}
else if ( s == "--griddb" ) {
assert( !dashDashInfer );
int n = 0;
while ( ++i < argc ) {
dashDashGridDb.push_back(argv[i]);
n++;
}
if ( n == 0 ) {
cout << "error: no args for --griddb\n";
return 4;
}
if ( n > 2 ) {
cout << "error: --griddb does not support more than 2 parameters yet\n";
return 5;
}
}
else {
usage();
return 3;
}
}
bool ok = port != 0;
if ( !ok ) {
usage();
return 1;
}
log() << "dbgrid starting (--help for usage)" << endl;
UnitTest::runTests();
start();
dbexit(0);
return 0;
}
namespace mongo {
#undef exit
void dbexit(int rc, const char *why) {
log() << "dbexit: " << why << " rc:" << rc << endl;
exit(rc);
}
} // namespace mongo
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