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2020-02-18 Fred Gleason <fredg@paravelsystems.com>

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* Fixed a regression in the implmenetation of the 'Set Serial Trap'
	['SI'] RML that could cause deadlocks and intermittent operation.
This commit is contained in:
Fred Gleason
2020-02-18 08:13:03 -05:00
parent 15cd9954a0
commit 16f8154800
6 changed files with 45 additions and 32 deletions
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27
ripcd/local_macros.cpp
View File

@@ -2,7 +2,7 @@
//
// Local RML Macros for the Rivendell Interprocess Communication Daemon
//
// (C) Copyright 2002-2019 Fred Gleason <fredg@paravelsystems.com>
// (C) Copyright 2002-2020 Fred Gleason <fredg@paravelsystems.com>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
@@ -96,19 +96,22 @@ void MainObject::gpoStateData(int matrix,unsigned line,bool state)
void MainObject::ttyTrapData(int cartnum)
{
rda->syslog(LOG_DEBUG,"executing trap cart %06d",cartnum);
ExecCart(cartnum);
}
void MainObject::ttyScanData()
void MainObject::ttyReadyReadData(int num)
{
char buf[256];
int n;
for(int i=0;i<MAX_TTYS;i++) {
if(ripcd_tty_dev[i]!=NULL) {
while((n=ripcd_tty_dev[i]->read(buf,255))>0) {
ripcd_tty_trap[i]->scan(buf,n);
if(ripcd_tty_dev[num]!=NULL) {
while((n=ripcd_tty_dev[num]->read(buf,255))>0) {
buf[n]=0;
if(ripcd_tty_trap[num]!=NULL) {
ripcd_tty_trap[num]->scan(buf,n);
}
}
}
@@ -206,6 +209,10 @@ void MainObject::LoadLocalMacros()
ripcd_tty_dev[tty_port]->
setParity((RDTTYDevice::Parity)q->value(4).toInt());
if(ripcd_tty_dev[tty_port]->open(QIODevice::ReadWrite)) {
connect(ripcd_tty_dev[tty_port],SIGNAL(readyRead()),
ripcd_tty_ready_read_mapper,SLOT(map()));
ripcd_tty_ready_read_mapper->
setMapping(ripcd_tty_dev[tty_port],tty_port);
ripcd_tty_term[tty_port]=(RDTty::Termination)q->value(5).toInt();
ripcd_tty_inuse[tty_port]=true;
ripcd_tty_trap[tty_port]=new RDCodeTrap(this);
@@ -219,9 +226,6 @@ void MainObject::LoadLocalMacros()
}
}
delete q;
QTimer *timer=new QTimer(this,"tty_scan_timer");
connect(timer,SIGNAL(timeout()),this,SLOT(ttyScanData()));
timer->start(RIPCD_TTY_READ_INTERVAL);
}
@@ -631,7 +635,7 @@ void MainObject::RunLocalMacros(RDMacro *rml_in)
sendRml(rml);
}
break;
case RDMacro::SI:
tty_port=rml->arg(0).toInt();
if((tty_port<0)||(tty_port>MAX_TTYS)||(rml->argQuantity()!=3)) {
@@ -652,6 +656,8 @@ void MainObject::RunLocalMacros(RDMacro *rml_in)
str+=rml->arg(rml->argQuantity()-1);
ripcd_tty_trap[tty_port]->addTrap(rml->arg(1).toInt(),
str,str.length());
rda->syslog(LOG_DEBUG,"added trap \"%s\" to tty port %d",
(const char *)str.toUtf8(),rml->arg(1).toInt());
rml->acknowledge(true);
sendRml(rml);
return;
@@ -793,6 +799,7 @@ void MainObject::RunLocalMacros(RDMacro *rml_in)
//
if(ripcd_tty_dev[tty_port]!=NULL) {
ripcd_tty_dev[tty_port]->close();
ripcd_tty_ready_read_mapper->disconnect(ripcd_tty_dev[tty_port]);
delete ripcd_tty_dev[tty_port];
ripcd_tty_dev[tty_port]=NULL;
ripcd_tty_inuse[tty_port]=false;

9
ripcd/ripcd.cpp
View File

@@ -2,7 +2,7 @@
//
// Rivendell Interprocess Communication Daemon
//
// (C) Copyright 2002-2019 Fred Gleason <fredg@paravelsystems.com>
// (C) Copyright 2002-2020 Fred Gleason <fredg@paravelsystems.com>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
@@ -125,6 +125,13 @@ MainObject::MainObject(QObject *parent)
connect(ripc_macro_timer[i],SIGNAL(timeout()),mapper,SLOT(map()));
}
//
// TTY Ready Read Mapper
//
ripcd_tty_ready_read_mapper=new QSignalMapper(this);
connect(ripcd_tty_ready_read_mapper,SIGNAL(mapped(int)),
this,SLOT(ttyReadyReadData(int)));
ripcd_host_addr=rda->station()->address();
//

6
ripcd/ripcd.h
View File

@@ -2,7 +2,7 @@
//
// Rivendell Interprocess Communication Daemon
//
// (C) Copyright 2002-2019 Fred Gleason <fredg@paravelsystems.com>
// (C) Copyright 2002-2020 Fred Gleason <fredg@paravelsystems.com>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
@@ -55,7 +55,6 @@
//
#define RIPCD_MAX_LENGTH 256
#define RIPCD_RML_READ_INTERVAL 100
#define RIPCD_TTY_READ_INTERVAL 100
#define RIPCD_USAGE "[-d]\n\nSupplying the '-d' flag will set 'debug' mode, causing ripcd(8) to stay\nin the foreground and print debugging info on standard output.\n"
class MainObject : public QObject
@@ -77,7 +76,7 @@ class MainObject : public QObject
void gpiStateData(int matrix,unsigned line,bool state);
void gpoStateData(int matrix,unsigned line,bool state);
void ttyTrapData(int cartnum);
void ttyScanData();
void ttyReadyReadData(int num);
void macroTimerData(int num);
void readyReadData(int conn_id);
void killData(int conn_id);
@@ -130,6 +129,7 @@ class MainObject : public QObject
bool ripcd_tty_inuse[MAX_TTYS];
int ripcd_switcher_tty[MAX_MATRICES][2];
RDTTYDevice *ripcd_tty_dev[MAX_TTYS];
QSignalMapper *ripcd_tty_ready_read_mapper;
RDTty::Termination ripcd_tty_term[MAX_TTYS];
RDCodeTrap *ripcd_tty_trap[MAX_TTYS];
bool ripc_onair_flag;