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* Fixed a regression in the implmenetation of the 'Set Serial Trap' ['SI'] RML that could cause deadlocks and intermittent operation.
124 lines
2.8 KiB
C++
124 lines
2.8 KiB
C++
// rdcodetrap.cpp
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//
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// A class for trapping arbitrary character sequences.
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//
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// (C) Copyright 2002-2020 Fred Gleason <fredg@paravelsystems.com>
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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 Library General Public License
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// version 2 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 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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//
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#include <string.h>
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#include <rdcodetrap.h>
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RDCodeTrap::RDCodeTrap(QObject *parent)
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: QObject(parent)
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{
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}
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RDCodeTrap::~RDCodeTrap()
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{
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}
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void RDCodeTrap::addTrap(int id,const char *code,int length)
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{
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for(int i=0;i<trap_events.size();i++) {
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if(length==trap_events[i].length) {
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if((trap_events[i].id==id)&&
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(!strncmp(code,trap_events[i].code,length))) {
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return;
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}
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}
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}
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trap_events.push_back(RDTrapEvent());
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trap_events.back().id=id;
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trap_events.back().code=new char[length];
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memcpy(trap_events.back().code,code,length);
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trap_events.back().length=length;
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trap_events.back().istate=0;
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}
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void RDCodeTrap::removeTrap(int id)
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{
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for(int i=0;i<trap_events.size();i++) {
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if(trap_events[i].id==id) {
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delete trap_events[i].code;
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QList<RDTrapEvent>::iterator it=trap_events.begin()+i;
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trap_events.erase(it,it+1);
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i--;
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}
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}
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}
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void RDCodeTrap::removeTrap(const char *code,int length)
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{
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for(int i=0;i<trap_events.size();i++) {
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if(length==trap_events[i].length) {
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if(!strncmp(code,trap_events[i].code,length)) {
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delete trap_events[i].code;
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QList<RDTrapEvent>::iterator it=trap_events.begin()+i;
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trap_events.erase(it,it+1);
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i--;
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}
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}
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}
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}
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void RDCodeTrap::removeTrap(int id,const char *code,int length)
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{
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for(int i=0;i<trap_events.size();i++) {
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if(length==trap_events[i].length) {
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if((trap_events[i].id==id)&&
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(!strncmp(code,trap_events[i].code,length))) {
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delete trap_events[i].code;
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QList<RDTrapEvent>::iterator it=trap_events.begin()+i;
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trap_events.erase(it,it+1);
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i--;
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}
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}
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}
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}
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void RDCodeTrap::scan(const char *buf,int length)
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{
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for(int i=0;i<trap_events.size();i++) {
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for(int j=0;j<length;j++) {
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if(buf[j]==trap_events[i].code[trap_events[i].istate]) {
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trap_events[i].istate++;
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}
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else {
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trap_events[i].istate=0;
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}
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if(trap_events[i].istate==trap_events[i].length) {
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emit trapped(trap_events[i].id);
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trap_events[i].istate=0;
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}
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}
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}
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}
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void RDCodeTrap::clear()
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{
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trap_events.clear();
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}
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