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Initial import of CVS-v2_8_branch
This commit is contained in:
Fred Gleason
232
utils/sas_shim/sas_shim.cpp
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232
utils/sas_shim/sas_shim.cpp
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// sas_shim.cpp
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//
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// An RDCatch event import shim for the SAS64000
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//
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// (C) Copyright 2002-2004 Fred Gleason <fredg@paravelsystems.com>
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//
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// $Id: sas_shim.cpp,v 1.8 2010/07/29 19:32:40 cvs Exp $
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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 General Public License version 2 as
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// 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 General Public License for more details.
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//
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// You should have received a copy of the GNU General Public
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// License along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <signal.h>
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#include <qapplication.h>
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#include <qtimer.h>
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#include <rdconf.h>
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#include <rd.h>
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#include <rdcmd_switch.h>
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#include <rddbheartbeat.h>
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#include <sas_shim.h>
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void SigHandler(int signo)
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{
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switch(signo) {
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case SIGTERM:
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unlink("/var/run/sas_shim.pid");
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exit(0);
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break;
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}
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}
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MainObject::MainObject(QObject *parent,const char *name)
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: QObject(parent,name)
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{
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//
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// Read Command Options
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//
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RDCmdSwitch *cmd=new RDCmdSwitch(qApp->argc(),qApp->argv(),"sas_shim","\n");
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delete cmd;
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rd_config=new RDConfig(RD_CONF_FILE);
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rd_config->load();
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//
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// Open Database
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//
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shim_db=QSqlDatabase::addDatabase(rd_config->mysqlDriver());
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if(!shim_db) {
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fprintf(stderr,"sas_shim: can't open mySQL database\n");
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exit(1);
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}
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shim_db->setDatabaseName(rd_config->mysqlDbname());
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shim_db->setUserName(rd_config->mysqlUsername());
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shim_db->setPassword(rd_config->mysqlPassword());
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shim_db->setHostName(rd_config->mysqlHostname());
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if(!shim_db->open()) {
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fprintf(stderr,"sas_shim: unable to connect to mySQL Server");
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shim_db->removeDatabase(rd_config->mysqlDbname());
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exit(1);
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}
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new RDDbHeartbeat(rd_config->mysqlHeartbeatInterval(),this);
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//
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// RIPCD Connection
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//
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shim_ripc=new RDRipc("");
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shim_ripc->connectHost("localhost",RIPCD_TCP_PORT,rd_config->password());
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//
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// Station Configuration
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//
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shim_rdstation=new RDStation(rd_config->stationName());
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shim_address=shim_rdstation->address();
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//
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// TTY Device
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//
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shim_tty=new RDTTYDevice();
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shim_tty->setName(rd_config->sasTtyDevice());
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if(!shim_tty->open(IO_ReadOnly)) {
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fprintf(stderr,"sas_shim: unabled to open tty device\n");
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exit(1);
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}
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shim_tty->setSpeed(9600);
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shim_tty->setWordLength(8);
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shim_tty->setParity(RDTTYDevice::None);
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//
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// Poll Timer
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//
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QTimer *timer=new QTimer(this,"poll_timer");
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connect(timer,SIGNAL(timeout()),this,SLOT(readTtyData()));
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timer->start(POLL_INTERVAL);
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//
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// Detach
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//
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RDDetach(rd_config->logCoreDumpDirectory());
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FILE *pidfile=fopen("/var/run/sas_shim.pid","w");
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fprintf(pidfile,"%d",getpid());
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fclose(pidfile);
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::signal(SIGTERM,SigHandler);
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}
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void MainObject::readTtyData()
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{
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static char cmd[3];
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static int input;
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static int output;
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static int istate=0;
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char buf[256];
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int n;
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while((n=shim_tty->readBlock(buf,255))>0) {
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for(int i=0;i<n;i++) {
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switch(istate) {
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case 0: // Start of Command
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if(buf[i]=='D') {
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istate=1;
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}
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break;
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case 1: // Type Identifier
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if(buf[i]=='T') {
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istate=2;
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}
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else {
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istate=0;
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}
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break;
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case 2: // Crosspoint State Byte
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if(buf[i]=='1') {
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istate=3;
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}
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else {
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istate=0;
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}
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break;
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case 3: // First Input Digit
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if((buf[i]>='0')&&(buf[i]<='9')) {
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cmd[0]=buf[i];
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istate=4;
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}
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else {
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istate=0;
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}
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break;
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case 4: // Second Input Digit
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if((buf[i]>='0')&&(buf[i]<='9')) {
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cmd[1]=buf[i];
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cmd[2]=0;
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sscanf(cmd,"%d",&input);
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istate=5;
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}
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else {
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istate=0;
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}
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break;
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case 5: // First Output Digit
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if((buf[i]>='0')&&(buf[i]<='9')) {
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cmd[0]=buf[i];
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istate=6;
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}
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else {
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istate=0;
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}
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break;
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case 6: // Second Output Digit
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if((buf[i]>='0')&&(buf[i]<='9')) {
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cmd[1]=buf[i];
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cmd[2]=0;
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sscanf(cmd,"%d",&output);
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DispatchRml(input,output);
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istate=0;
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}
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else {
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istate=0;
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}
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break;
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}
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}
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}
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}
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void MainObject::DispatchRml(int input,int output)
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{
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RDMacro rml;
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rml.setCommand(RDMacro::ST);
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rml.setRole(RDMacro::Cmd);
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rml.setAddress(shim_address);
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rml.setEchoRequested(false);
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rml.setArgQuantity(3);
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rml.setArg(0,rd_config->sasMatrix());
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rml.setArg(1,input);
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rml.setArg(2,output);
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shim_ripc->sendRml(&rml);
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}
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int main(int argc,char *argv[])
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{
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QApplication a(argc,argv,false);
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new MainObject(NULL,"main");
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return a.exec();
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}
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