the begginning

versioning/BRM/slavenode.cpp

@@ -0,0 +1,166 @@
+/* Copyright (C) 2014 InfiniDB, Inc.
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; version 2 of
+   the License.
+
+   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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+   MA 02110-1301, USA. */
+
+/*****************************************************************************
+ * $Id: slavenode.cpp 1931 2013-07-08 16:53:02Z bpaul $
+ *
+ ****************************************************************************/
+
+#include <iostream>
+#include <signal.h>
+#include <string>
+#include <clocale>
+#ifdef _MSC_VER
+#include <process.h>
+#include <winsock2.h>
+#endif
+#include "slavedbrmnode.h"
+#include "slavecomm.h"
+#include "liboamcpp.h"
+#include "brmtypes.h"
+#include "rwlockmonitor.h"
+
+#include "utils_utf8.h"
+#include "IDBPolicy.h"
+
+using namespace BRM;
+using namespace std;
+
+SlaveComm *comm;
+bool die;
+boost::thread_group monitorThreads;
+
+void fail()
+{
+	try {
+		oam::Oam oam;
+
+		oam.processInitFailure();
+	}
+	catch (exception&) {
+		cerr << "failed to notify OAM of server failure" << endl;
+	}
+}
+
+void stop(int sig)
+{
+	if (!die) {
+		die = true;
+		comm->stop();
+		monitorThreads.interrupt_all();
+	}
+}
+
+void reset(int sig)
+{
+        comm->reset();
+}
+
+int main(int argc, char **argv)
+{
+
+	// get and set locale language - BUG 5362
+	string systemLang = "C";
+	systemLang = funcexp::utf8::idb_setlocale();
+
+	BRM::logInit ( BRM::SubSystemLogId_workerNode );
+
+	string nodeName;
+	SlaveDBRMNode slave;
+	string arg;
+	int err = 0;
+	ShmKeys keys;
+
+	if (argc < 2) {
+		ostringstream os;
+		os << "Usage: " << argv[0] << " DBRM_WorkerN";
+		cerr << os.str() << endl;
+		log(os.str());
+		fail();
+		exit(1);
+	}
+
+	idbdatafile::IDBPolicy::configIDBPolicy();
+
+	nodeName = argv[1];	
+	try {
+		comm = new SlaveComm(nodeName, &slave);
+	}
+	catch (exception &e) {
+		ostringstream os;
+		os << "An error occured: " << e.what();
+		cerr << os.str() << endl;
+		log(os.str());
+		fail();
+		exit(1);
+	}
+#ifdef SIGHUP
+ 	signal(SIGHUP, reset);
+#endif
+ 	signal(SIGINT, stop);
+	signal(SIGTERM, stop);
+#ifdef SIGPIPE
+	signal(SIGPIPE, SIG_IGN);
+#endif
+
+	if (!(argc >= 3 && (arg = argv[2]) == "fg"))
+		err = fork();
+
+	if (err == 0) {
+
+		/* Start 4 threads to monitor write lock state */
+		monitorThreads.create_thread(RWLockMonitor
+				(&die, slave.getEMFLLockStatus(), keys.KEYRANGE_EMFREELIST_BASE));
+		monitorThreads.create_thread(RWLockMonitor
+				(&die, slave.getEMLockStatus(), keys.KEYRANGE_EXTENTMAP_BASE));
+		monitorThreads.create_thread(RWLockMonitor
+				(&die, slave.getVBBMLockStatus(), keys.KEYRANGE_VBBM_BASE));
+		monitorThreads.create_thread(RWLockMonitor
+				(&die, slave.getVSSLockStatus(), keys.KEYRANGE_VSS_BASE));
+
+		try {
+			oam::Oam oam;
+			
+			oam.processInitComplete("DBRMWorkerNode");
+		}
+		catch (exception &e) {
+			ostringstream os;
+			os << "failed to notify OAM: " << e.what();
+			os << " continuing anyway";
+			cerr << os.str() << endl;
+			log(os.str(), logging::LOG_TYPE_WARNING);
+		}
+
+		try {
+			comm->run();
+		}
+		catch (exception &e) {
+			ostringstream os;
+			os << "An error occurred: " << e.what();
+			cerr << os.str() << endl;
+			log(os.str());
+			exit(1);
+		}
+	}
+	else if (err < 0) {
+		perror(argv[0]);
+		log_errno(string(argv[0]));
+		fail();
+	}
+
+	exit(0);
+}