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tdevelop/languages/ruby/debugger/rdbcontroller.cpp

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// *************************************************************************
// rdbcontroller.cpp - description
// -------------------
// begin : Sun Aug 8 1999
// copyright : (C) 1999 by John Birch
// email : jbb@tdevelop.org
//
// Adapted for ruby debugging
// --------------------------
// begin : Mon Nov 1 2004
// copyright : (C) 2004 by Richard Dale
// email : Richard_Dale@tipitina.demon.co.uk
// **************************************************************************
//
// **************************************************************************
// * *
// * 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; either version 2 of the License, or *
// * (at your option) any later version. *
// * *
// **************************************************************************
#include "rdbcontroller.h"
#include <sys/types.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <errno.h>
#include "breakpoint.h"
#include "framestackwidget.h"
#include "rdbcommand.h"
#include "stty.h"
#include "variablewidget.h"
#include "domutil.h"
#include "settings.h"
#include <kapplication.h>
#include <kconfig.h>
#include <kdebug.h>
#include <kglobal.h>
#include <klocale.h>
#include <kmessagebox.h>
#include <kprocess.h>
#include <tqdatetime.h>
#include <tqfileinfo.h>
#include <tqregexp.h>
#include <tqstring.h>
#include <tqtextstream.h>
#include <iostream>
#include <ctype.h>
#include <stdlib.h>
using namespace std;
// **************************************************************************
//
// Does all the communication between rdb and the tdevelop's debugger code.
// Significatant classes being used here are
//
// RDBParser - parses the "variable" data using the vartree and varitems
// VarTree - where the variable data will end up
// FrameStack - tracks the program frames and allows the user to switch between
// and therefore view the calling funtions and their data
// Breakpoint - Where and what to do with breakpoints.
// STTY - the tty that the _application_ will run on.
//
// Significant variables
// state_ - be very careful setting this. The controller is totally
// dependent on this reflecting the correct state. For instance,
// if the app is busy but we don't think so, then we lose control
// of the app. The only way to get out of these situations is to
// delete (stop) the controller.
// currentFrame_
// - Holds the frame number where and locals/variable information will
// go to
//
//
// **************************************************************************
namespace RDBDebugger
{
// This is here so we can check for startup /shutdown problems
int debug_controllerExists = false;
// At the moment a Unix domain socket is used. It might be better to
// change to tcp/ip and listen on a port instead
TQCString RDBController::unixSocketPath_;
RDBController::RDBController(VariableTree *varTree, FramestackWidget *frameStack, TQDomDocument &projectDom)
: DbgController(),
frameStack_(frameStack),
varTree_(varTree),
currentFrame_(1),
viewedThread_(-1),
stdoutOutputLen_(0),
stdoutOutput_(new char[4096]),
holdingZone_(),
rdbOutputLen_(0),
rdbOutput_(new char[49152]),
socketNotifier_(0),
currentCmd_(0),
currentPrompt_("(rdb:1) "),
tty_(0),
state_(s_dbgNotStarted|s_appNotStarted|s_silent),
programHasExited_(false),
dom(projectDom),
config_forceBPSet_(true),
config_dbgTerminal_(false)
{
struct sockaddr_un sockaddr;
unixSocketPath_.sprintf("/tmp/.rubydebugger%d", getpid());
TQFileInfo unixSocket(unixSocketPath_);
stdoutSizeofBuf_ = sizeof(stdoutOutput_);
rdbSizeofBuf_ = sizeof(rdbOutput_);
if (unixSocket.exists()) {
unlink(unixSocketPath_);
}
masterSocket_ = socket(AF_UNIX, SOCK_STREAM, 0);
sockaddr.sun_family = AF_UNIX;
strcpy(sockaddr.sun_path, unixSocketPath_);
bind(masterSocket_, (const struct sockaddr*) &sockaddr, sizeof(sockaddr));
listen(masterSocket_, 1);
acceptNotifier_ = new TQSocketNotifier(masterSocket_, TQSocketNotifier::Read, this);
TQObject::connect( acceptNotifier_, TQT_SIGNAL(activated(int)),
this, TQT_SLOT(slotAcceptConnection(int)) );
configure();
cmdList_.setAutoDelete(true);
Q_ASSERT(! debug_controllerExists);
debug_controllerExists = true;
}
// **************************************************************************
// Deleting the controller involves shutting down rdb nicely.
// When were attached to a process, we must first detach so that the process
// can continue running as it was before being attached. rdb is quite slow to
// detach from a process, so we must process events within here to get a "clean"
// shutdown.
RDBController::~RDBController()
{
delete[] stdoutOutput_;
delete[] rdbOutput_;
debug_controllerExists = false;
TQFileInfo unixSocket(unixSocketPath_);
if (unixSocket.exists()) {
unlink(unixSocketPath_);
}
}
// **************************************************************************
void RDBController::configure()
{
}
// **************************************************************************
// Fairly obvious that we'll add whatever command you give me to a queue
// If you tell me to, I'll put it at the head of the queue so it'll run ASAP
// Not quite so obvious though is that if we are going to run again. then any
// information requests become redundent and must be removed.
// We also try and run whatever command happens to be at the head of
// the queue.
void RDBController::queueCmd(DbgCommand *cmd, bool executeNext)
{
// We remove any info command or _run_ command if we are about to
// add a run command.
if (cmd->isARunCmd())
removeInfoRequests();
if (executeNext)
cmdList_.insert(0, cmd);
else
cmdList_.append (cmd);
}
// **************************************************************************
// If the appliction can accept a command and we've got one waiting
// then send it.
// Commands can be just request for data (or change rdbs state in someway)
// or they can be "run" commands. If a command is sent to rdb our internal
// state will get updated.
void RDBController::executeCmd()
{
if (stateIsOn(s_dbgNotStarted|s_waitForWrite|s_appBusy|s_shuttingDown) || !dbgProcess_)
return;
if (currentCmd_ == 0) {
if (cmdList_.isEmpty())
return;
currentCmd_ = cmdList_.take(0);
}
if (!currentCmd_->moreToSend()) {
delete currentCmd_;
if (cmdList_.isEmpty()) {
currentCmd_ = 0;
return;
}
currentCmd_ = cmdList_.take(0);
}
char * ptr = currentCmd_->cmdToSend().data();
int bytesToWrite = currentCmd_->cmdLength();
int bytesWritten = 0;
while (bytesToWrite > 0) {
bytesWritten = write(socket_, ptr, bytesToWrite);
bytesToWrite -= bytesWritten;
ptr += bytesWritten;
}
if (currentCmd_->isARunCmd()) {
setStateOn(s_appBusy);
kdDebug(9012) << "App is busy" << endl;
setStateOff(s_appNotStarted|s_programExited|s_silent);
}
TQString prettyCmd = currentCmd_->cmdToSend();
prettyCmd = currentPrompt_ + prettyCmd;
emit rdbStdout( prettyCmd.latin1() );
if (!stateIsOn(s_silent))
emit dbgStatus("", state_);
}
// **************************************************************************
void RDBController::destroyCmds()
{
if (currentCmd_)
{
delete currentCmd_;
currentCmd_ = 0;
}
while (!cmdList_.isEmpty())
delete cmdList_.take(0);
}
// **********************************************************************
void RDBController::removeInfoRequests()
{
int i = cmdList_.count();
while (i)
{
i--;
DbgCommand *cmd = cmdList_.at(i);
if (cmd->isAnInfoCmd() || cmd->isARunCmd())
delete cmdList_.take(i);
}
}
// **********************************************************************
// Pausing an app removes any pending run commands so that the app doesn't
// start again. If we want to be silent then we remove any pending info
// commands as well.
void RDBController::pauseApp()
{
int i = cmdList_.count();
while (i)
{
i--;
DbgCommand *cmd = cmdList_.at(i);
if ((stateIsOn(s_silent) && cmd->isAnInfoCmd()) || cmd->isARunCmd())
delete cmdList_.take(i);
}
if (dbgProcess_ && stateIsOn(s_appBusy))
dbgProcess_->kill(SIGINT);
}
// **********************************************************************
// Whenever the program pauses we need to refresh the data visible to
// the user. The reason we've stopped may be passed in to be emitted.
void RDBController::actOnProgramPause(const TQString &msg)
{
// We're only stopping if we were running, of course.
if (stateIsOn(s_appBusy))
{
kdDebug(9012) << "App is paused" << endl;
setStateOff(s_appBusy);
if (stateIsOn(s_silent))
return;
emit dbgStatus (msg, state_);
// We're always at frame one when the program stops
// and we must reset the active flag
currentFrame_ = 1;
varTree_->nextActivationId();
setStateOn(s_fetchLocals);
queueCmd(new RDBCommand("where", NOTRUNCMD, INFOCMD), true);
queueCmd(new RDBCommand("thread list", NOTRUNCMD, INFOCMD), true);
if (stateIsOn(s_fetchGlobals)) {
queueCmd(new RDBCommand("var global", NOTRUNCMD, INFOCMD));
}
emit acceptPendingBPs();
}
}
// **************************************************************************
// There is no app anymore. This can be caused by program exiting
// an invalid program specified or ...
// rdb is still running though, but only the run command (may) make sense
// all other commands are disabled.
void RDBController::programNoApp(const TQString &msg, bool msgBox)
{
state_ = (s_appNotStarted|s_programExited|(state_&(s_shuttingDown)));
destroyCmds();
// We're always at frame one when the program stops
// and we must reset the active flag
viewedThread_ = -1;
currentFrame_ = 1;
varTree_->nextActivationId();
// Now wipe the tree out
varTree_->viewport()->setUpdatesEnabled(false);
varTree_->prune();
varTree_->viewport()->setUpdatesEnabled(true);
varTree_->repaint();
frameStack_->clear();
if (msgBox)
KMessageBox::error(0, i18n("rdb message:\n")+msg);
emit dbgStatus (msg, state_);
}
// **************************************************************************
// The program location falls out of rdb. We treat
// it as a wrapped command.
// The data gets parsed here and emitted in its component parts.
void RDBController::parseProgramLocation(char *buf)
{
TQString buffer(buf);
TQString line;
TQTextStream input(&buffer, IO_ReadOnly);
TQString sourceFile;
int sourceLine = 0;
// "1: a = 1"
TQRegExp display_re("^(\\d+):\\s(.*)$");
// "/opt/qt/src/widgets/qlistview.rb:1558:puts 'hello world'"
TQRegExp sourcepos_re("^([^:]+):(\\d+):");
line = input.readLine();
while (! line.isNull()) {
if (sourcepos_re.search(line, 0) >= 0) {
sourceFile = sourcepos_re.cap(1);
sourceLine = sourcepos_re.cap(2).toInt();
} else if (display_re.search(line, 0) >= 0) {
varTree_->watchRoot()->updateWatchExpression(display_re.cap(1).toInt(), display_re.cap(2));
}
line = input.readLine();
}
if ( !sourceFile.isNull()
&& ( traceIntoRuby_
|| ( !sourceFile.endsWith("/qtruby.rb")
&& !sourceFile.endsWith("/korundum.rb") ) )
&& !sourceFile.endsWith("/debuggee.rb") )
{
actOnProgramPause(TQString());
emit showStepInSource(sourceFile, sourceLine, "");
return;
}
if (stateIsOn(s_appBusy))
actOnProgramPause(i18n("No source: %1").arg(sourceFile));
else
emit dbgStatus (i18n("No source: %1").arg(sourceFile), state_);
}
// **************************************************************************
// parsing the backtrace list will cause the vartree to be refreshed
void RDBController::parseBacktraceList(char *buf)
{
frameStack_->parseRDBBacktraceList(buf);
}
// **************************************************************************
void RDBController::parseThreadList(char *buf)
{
frameStack_->parseRDBThreadList(buf);
viewedThread_ = frameStack_->viewedThread();
varTree_->setCurrentThread(viewedThread_);
}
// **************************************************************************
void RDBController::parseSwitchThread(char *buf)
{
// Look for the thread number
// 2 #<Thread:0x30091998 sleep> /home/duke/play/testit/trykorundum/src/bar.rb:13
TQRegExp thread_re("(\\d+)");
if (thread_re.search(buf) != -1) {
viewedThread_ = thread_re.cap(1).toInt();
currentFrame_ = 1;
}
}
// **************************************************************************
// After an 'up nnn' or 'down nnn' command, get the new source file and line no.
void RDBController::parseFrameMove(char *buf)
{
TQString sourceFile;
int sourceLine = 0;
if (stateIsOn(s_fetchLocals)) {
return;
}
// "#2 /home/duke/play/testit/trykorundum/src/main.rb:11"
TQRegExp sourcepos_re("#\\d+\\s([^:]+):(\\d+)");
if (sourcepos_re.search(buf) != -1) {
sourceFile = sourcepos_re.cap(1);
sourceLine = sourcepos_re.cap(2).toInt();
if ( !sourceFile.isNull()
&& ( traceIntoRuby_
|| ( !sourceFile.endsWith("/qtruby.rb")
&& !sourceFile.endsWith("/korundum.rb") ) )
&& !sourceFile.endsWith("/debuggee.rb") )
{
emit showStepInSource(sourceFile, sourceLine, "");
return;
}
}
emit dbgStatus(i18n("No source: %1").arg(sourceFile), state_);
}
// **************************************************************************
// When a breakpoint has been set, rdb responds with some data about the
// new breakpoint. We just inform the breakpoint system about this.
void RDBController::parseBreakpointSet(char *buf)
{
if (RDBSetBreakpointCommand *BPCmd = dynamic_cast<RDBSetBreakpointCommand*>(currentCmd_))
{
// ... except in this case :-) A -1 key tells us that this is
// a special internal breakpoint, and we shouldn't do anything
// with it. Currently there are _no_ internal breakpoints.
if (BPCmd->getKey() != -1) {
emit rawRDBBreakpointSet(buf, BPCmd->getKey());
}
}
}
// **************************************************************************
// Extra data needed by an item was requested. Here's the result.
// If it's an ordinary 'p ' command then just echo the result on
// the RDB console and don't bother parsing.
void RDBController::parseRequestedData(char *buf)
{
if (RDBItemCommand *rdbItemCommand = dynamic_cast<RDBItemCommand*> (currentCmd_))
{
// Fish out the item from the command and let it deal with the data
VarItem *item = rdbItemCommand->getItem();
varTree_->viewport()->setUpdatesEnabled(false);
item->expandValue(buf);
varTree_->viewport()->setUpdatesEnabled(true);
varTree_->repaint();
}
}
// **************************************************************************
// Select a different frame to view. We need to get and (maybe) display
// where we are in the program source.
void RDBController::parseFrameSelected(char *buf)
{
if (!stateIsOn(s_silent)) {
emit showStepInSource("", -1, "");
emit dbgStatus (i18n("No source: %1").arg(TQString(buf)), state_);
}
}
// **************************************************************************
// Sets the id of the display in the VarTree and a current value.
void RDBController::parseDisplay(char *buf, char * expr)
{
varTree_->viewport()->setUpdatesEnabled(false);
varTree_->watchRoot()->setWatchExpression(buf, expr);
varTree_->viewport()->setUpdatesEnabled(true);
varTree_->repaint();
}
// **************************************************************************
// Updates the watch expressions with current values
void RDBController::parseUpdateDisplay(char *buf)
{
varTree_->viewport()->setUpdatesEnabled(false);
TQRegExp display_re("(\\d+):\\s([^\n]*)\n");
int pos = display_re.search(buf);
while (pos != -1) {
varTree_->watchRoot()->updateWatchExpression(display_re.cap(1).toInt(), display_re.cap(2));
pos += display_re.matchedLength();
pos = display_re.search(buf, pos);
}
varTree_->viewport()->setUpdatesEnabled(true);
varTree_->repaint();
}
// **************************************************************************
// This is called on program stop to process the globals.
void RDBController::parseGlobals(char *buf)
{
varTree_->viewport()->setUpdatesEnabled(false);
varTree_->globalRoot()->setGlobals(buf);
varTree_->viewport()->setUpdatesEnabled(true);
varTree_->repaint();
}
// **************************************************************************
// This is called on program stop to process the locals.
// Once the locals have been processed we prune the tree of items that are
// inactive.
void RDBController::parseLocals(char type, char *buf)
{
varTree_->viewport()->setUpdatesEnabled(false);
// The locals are always attached to the currentFrame
VarFrameRoot *frame = varTree_->findFrame(currentFrame_, viewedThread_);
if (!frame)
{
frame = new VarFrameRoot(varTree_, currentFrame_, viewedThread_);
frame->setFrameName(
frameStack_->findFrame(currentFrame_, viewedThread_)->frameName());
}
Q_ASSERT(frame);
if (type == (char) CONSTANTS) {
frame->addLocals(buf);
} else if (type == (char) CVARS) {
frame->addLocals(buf);
} else if (type == (char) IVARS) {
frame->addLocals(buf);
} else {
frame->addLocals(buf);
frame->setLocals();
}
varTree_->viewport()->setUpdatesEnabled(true);
varTree_->repaint();
}
// **************************************************************************
void RDBController::parse(char *buf)
{
if (currentCmd_ == 0) {
return;
}
if (currentCmd_->isARunCmd()) {
parseProgramLocation(buf);
} else if (currentCmd_->rawDbgCommand() == "break") {
emit rawRDBBreakpointList(buf);
} else if (tqstrncmp(currentCmd_->rawDbgCommand(), "break ", strlen("break ")) == 0) {
parseBreakpointSet(buf);
} else if (tqstrncmp(currentCmd_->rawDbgCommand(), "watch ", strlen("watch ")) == 0) {
parseBreakpointSet(buf);
} else if (tqstrncmp(currentCmd_->rawDbgCommand(), "display ", strlen("display ")) == 0) {
parseDisplay(buf, currentCmd_->rawDbgCommand().data() + strlen("display "));
} else if (currentCmd_->rawDbgCommand() == "display") {
parseUpdateDisplay(buf);
} else if (tqstrncmp(currentCmd_->rawDbgCommand(), "undisplay ", strlen("undisplay ")) == 0) {
;
} else if (tqstrncmp(currentCmd_->rawDbgCommand(), "method instance ", strlen("method instance ")) == 0) {
} else if (tqstrncmp(currentCmd_->rawDbgCommand(), "method ", strlen("method ")) == 0) {
} else if (tqstrncmp(currentCmd_->rawDbgCommand(), "pp ", strlen("pp ")) == 0) {
parseRequestedData(buf);
} else if (currentCmd_->rawDbgCommand() == "thread list") {
parseThreadList(buf);
} else if ( tqstrncmp(currentCmd_->rawDbgCommand(), "up ", strlen("up ")) == 0
|| tqstrncmp(currentCmd_->rawDbgCommand(), "down ", strlen("down ")) == 0 )
{
parseFrameMove(buf);
} else if (tqstrncmp(currentCmd_->rawDbgCommand(), "thread switch ", strlen("thread switch ")) == 0) {
parseSwitchThread(buf);
} else if (currentCmd_->rawDbgCommand() == "thread current") {
parseThreadList(buf);
} else if (currentCmd_->rawDbgCommand() == "where") {
parseBacktraceList(buf);
} else if (currentCmd_->rawDbgCommand() == "var global") {
parseGlobals(buf);
} else if (currentCmd_->rawDbgCommand() == "var local") {
parseLocals(LOCALS, buf);
} else if (tqstrncmp(currentCmd_->rawDbgCommand(), "var instance ", strlen("var instance ")) == 0) {
parseLocals(IVARS, buf);
} else if (tqstrncmp(currentCmd_->rawDbgCommand(), "var class ", strlen("var class ")) == 0) {
parseLocals(CVARS, buf);
} else if (tqstrncmp(currentCmd_->rawDbgCommand(), "var const ", strlen("var const ")) == 0) {
parseLocals(CONSTANTS, buf);
}
return;
}
// **************************************************************************
void RDBController::setBreakpoint(const TQCString &BPSetCmd, int key)
{
queueCmd(new RDBSetBreakpointCommand(BPSetCmd, key));
}
// **************************************************************************
void RDBController::clearBreakpoint(const TQCString &BPClearCmd)
{
queueCmd(new RDBCommand(BPClearCmd, NOTRUNCMD, NOTINFOCMD));
// Note: this is NOT an info command, because rdb doesn't explictly tell
// us that the breakpoint has been deleted, so if we don't have it the
// BP list doesn't get updated.
queueCmd(new RDBCommand("break", NOTRUNCMD, NOTINFOCMD));
}
// **************************************************************************
void RDBController::modifyBreakpoint( const Breakpoint& BP )
{
Q_ASSERT(BP.isActionModify());
if (BP.dbgId() > 0)
{
if (BP.changedEnable())
queueCmd(new RDBCommand(TQCString().sprintf("%s %d",
BP.isEnabled() ? "enable" : "disable",
BP.dbgId()), NOTRUNCMD, NOTINFOCMD));
// BP.setDbgProcessing(true);
// Note: this is NOT an info command, because rdb doesn't explictly tell
// us that the breakpoint has been deleted, so if we don't have it the
// BP list doesn't get updated.
queueCmd(new RDBCommand("break", NOTRUNCMD, NOTINFOCMD));
}
}
// **************************************************************************
// SLOTS
// *****
// For most of these slots data can only be sent to rdb when it
// isn't busy and it is running.
// **************************************************************************
void RDBController::slotStart(const TQString& ruby_interpreter, const TQString& character_coding, const TQString& run_directory, const TQString& debuggee_path, const TQString &application, const TQString& run_arguments, bool show_constants, bool trace_into_ruby)
{
Q_ASSERT (!dbgProcess_ && !tty_);
// tty_ = new STTY(config_dbgTerminal_, "konsole");
tty_ = new STTY(config_dbgTerminal_, Settings::terminalEmulatorName( *kapp->config() ));
if (!config_dbgTerminal_)
{
connect( tty_, TQT_SIGNAL(OutOutput(const char*)), TQT_SIGNAL(ttyStdout(const char*)) );
connect( tty_, TQT_SIGNAL(ErrOutput(const char*)), TQT_SIGNAL(ttyStderr(const char*)) );
}
TQString tty(tty_->getSlave());
if (tty.isEmpty())
{
KMessageBox::error(0, i18n("The ruby debugger cannot use the tty* or pty* devices.\n"
"Check the settings on /dev/tty* and /dev/pty*\n"
"As root you may need to \"chmod ug+rw\" tty* and pty* devices "
"and/or add the user to the tty group using "
"\"usermod -G tty username\"."));
delete tty_;
tty_ = 0;
return;
}
dbgProcess_ = new KProcess;
connect( dbgProcess_, TQT_SIGNAL(receivedStdout(KProcess *, char *, int)),
this, TQT_SLOT(slotDbgStdout(KProcess *, char *, int)) );
connect( dbgProcess_, TQT_SIGNAL(receivedStderr(KProcess *, char *, int)),
this, TQT_SLOT(slotDbgStderr(KProcess *, char *, int)) );
connect( dbgProcess_, TQT_SIGNAL(wroteStdin(KProcess *)),
this, TQT_SLOT(slotDbgWroteStdin(KProcess *)) );
connect( dbgProcess_, TQT_SIGNAL(processExited(KProcess*)),
this, TQT_SLOT(slotDbgProcessExited(KProcess*)) );
rubyInterpreter_ = ruby_interpreter;
characterCoding_ = character_coding;
runDirectory_ = run_directory;
debuggeePath_ = debuggee_path;
application_ = application;
runArguments_ = run_arguments;
showConstants_ = show_constants;
traceIntoRuby_ = trace_into_ruby;
*dbgProcess_ << ruby_interpreter;
*dbgProcess_ << character_coding;
*dbgProcess_ << "-C" << TQString(TQFile::encodeName( run_directory ));
*dbgProcess_ << "-r" << debuggee_path;
*dbgProcess_ << application;
if (!run_arguments.isNull() && !run_arguments.isEmpty()) {
*dbgProcess_ << run_arguments;
}
emit rdbStdout(TQString( ruby_interpreter + " " + character_coding
+ " -C " + TQString(TQFile::encodeName( run_directory ))
+ " -r " + debuggee_path + " "
+ application + " " + run_arguments ).latin1() );
if (!dbgProcess_->start( KProcess::NotifyOnExit,
KProcess::Communication(KProcess::All)) )
{
kdDebug(9012) << "Couldn't start ruby debugger" << endl;
}
// Initialise rdb. At this stage rdb is sitting wondering what to do,
// and to whom. Organise a few things, then set up the tty for the application,
// and the application itself
// Now the ruby debugger has been started and the application has been loaded,
// BUT the app hasn't been started yet! A run command is about to be issued
// by whoever is controlling us.
if (!dbgProcess_->writeStdin(TQString("%1\n").arg(unixSocketPath_.data()).latin1(), strlen(unixSocketPath_) + 1)) {
kdDebug(9012) << "failed to write Unix domain socket path to rdb "
<< TQString("%1\n").arg(unixSocketPath_.data()).latin1() << endl;
}
setStateOff(s_programExited);
setStateOn(s_dbgNotStarted|s_appNotStarted|s_silent);
}
// **************************************************************************
void RDBController::slotStopDebugger()
{
if (stateIsOn(s_shuttingDown) || !dbgProcess_)
return;
setStateOn(s_shuttingDown|s_silent);
destroyCmds();
TQTime start;
TQTime now;
// Get rdb's attention if it's busy. We need rdb to be at the
// command line so we can stop it.
if (stateIsOn(s_appBusy))
{
kdDebug(9012) << "ruby debugger busy on shutdown - stopping rdb (SIGINT)" << endl;
dbgProcess_->kill(SIGINT);
start = TQTime::currentTime();
while (-1)
{
kapp->processEvents(20);
now = TQTime::currentTime();
if (!stateIsOn(s_appBusy) || start.msecsTo( now ) > 2000)
break;
}
}
// Now try to stop the ruby debugger running.
kdDebug(9012) << "App is busy" << endl;
setStateOn(s_appBusy);
const char *quit="quit\n";
if (!dbgProcess_->writeStdin(quit, strlen(quit)))
kdDebug(9012) << "failed to write 'quit' to ruby debugger" << endl;
emit rdbStdout("(rdb:1) quit");
start = TQTime::currentTime();
while (-1)
{
kapp->processEvents(20);
now = TQTime::currentTime();
if (stateIsOn(s_programExited) || start.msecsTo( now ) > 2000)
break;
}
// We cannot wait forever.
if (!stateIsOn(s_programExited))
{
kdDebug(9012) << "rdb not shutdown - killing" << endl;
dbgProcess_->kill(SIGKILL);
}
delete dbgProcess_; dbgProcess_ = 0;
delete tty_; tty_ = 0;
state_ = s_dbgNotStarted | s_appNotStarted | s_silent;
emit dbgStatus (i18n("Debugger stopped"), state_);
}
// **************************************************************************
void RDBController::slotRun()
{
if (stateIsOn(s_appBusy|s_dbgNotStarted|s_shuttingDown))
return;
if (stateIsOn(s_programExited)) {
slotStart(rubyInterpreter_, characterCoding_, runDirectory_, debuggeePath_, application_, runArguments_, showConstants_, traceIntoRuby_);
return;
}
queueCmd(new RDBCommand("cont", RUNCMD, NOTINFOCMD));
if (currentCmd_ == 0) {
executeCmd();
}
}
// **************************************************************************
void RDBController::slotRunUntil(const TQString &fileName, int lineNum)
{
if (stateIsOn(s_appBusy|s_dbgNotStarted|s_shuttingDown))
return;
if (fileName.isEmpty())
queueCmd(new RDBCommand( TQCString().sprintf("break %d", lineNum),
RUNCMD, NOTINFOCMD));
else
queueCmd(new RDBCommand(
TQCString().sprintf("break %s:%d", fileName.latin1(), lineNum),
RUNCMD, NOTINFOCMD));
queueCmd(new RDBCommand("cont", RUNCMD, NOTINFOCMD));
if (currentCmd_ == 0) {
executeCmd();
}
}
// **************************************************************************
void RDBController::slotStepInto()
{
if (stateIsOn(s_appBusy|s_appNotStarted|s_shuttingDown))
return;
queueCmd(new RDBCommand("step", RUNCMD, NOTINFOCMD));
if (currentCmd_ == 0) {
executeCmd();
}
}
// **************************************************************************
void RDBController::slotStepOver()
{
if (stateIsOn(s_appBusy|s_appNotStarted|s_shuttingDown))
return;
queueCmd(new RDBCommand("next", RUNCMD, NOTINFOCMD));
if (currentCmd_ == 0) {
executeCmd();
}
}
// **************************************************************************
void RDBController::slotStepOutOff()
{
if (stateIsOn(s_appBusy|s_appNotStarted|s_shuttingDown))
return;
queueCmd(new RDBCommand("finish", RUNCMD, NOTINFOCMD));
if (currentCmd_ == 0) {
executeCmd();
}
}
// **************************************************************************
// Only interrupt a running program.
void RDBController::slotBreakInto()
{
pauseApp();
}
// **************************************************************************
// See what, if anything needs doing to this breakpoint.
void RDBController::slotBPState( const Breakpoint& BP )
{
// Are we in a position to do anything to this breakpoint?
if (stateIsOn(s_dbgNotStarted|s_shuttingDown) || !BP.isPending() ||
BP.isActionDie())
return;
// We need this flag so that we can continue execution. I did use
// the s_silent state flag but it can be set prior to this method being
// called, hence is invalid.
bool restart = false;
if (stateIsOn(s_appBusy))
{
if (!config_forceBPSet_)
return;
// When forcing breakpoints to be set/unset, interrupt a running app
// and change the state.
setStateOn(s_silent);
pauseApp();
restart = true;
}
if (BP.isActionAdd())
{
setBreakpoint(BP.dbgSetCommand().latin1(), BP.key());
// BP.setDbgProcessing(true);
}
else
{
if (BP.isActionClear())
{
clearBreakpoint(BP.dbgRemoveCommand().latin1());
// BP.setDbgProcessing(true);
}
else
{
if (BP.isActionModify())
{
modifyBreakpoint(BP); // Note: DbgProcessing gets set in modify fn
}
}
}
if (restart)
queueCmd(new RDBCommand("cont", RUNCMD, NOTINFOCMD));
}
// **************************************************************************
void RDBController::slotClearAllBreakpoints()
{
// Are we in a position to do anything to this breakpoint?
if (stateIsOn(s_dbgNotStarted|s_shuttingDown))
return;
bool restart = false;
if (stateIsOn(s_appBusy))
{
if (!config_forceBPSet_)
return;
// When forcing breakpoints to be set/unset, interrupt a running app
// and change the state.
setStateOn(s_silent);
pauseApp();
restart = true;
}
queueCmd(new RDBCommand("delete", NOTRUNCMD, NOTINFOCMD));
// Note: this is NOT an info command, because rdb doesn't explictly tell
// us that the breakpoint has been deleted, so if we don't have it the
// BP list doesn't get updated.
queueCmd(new RDBCommand("break", NOTRUNCMD, NOTINFOCMD));
if (restart)
queueCmd(new RDBCommand("cont", RUNCMD, NOTINFOCMD));
executeCmd();
}
// **************************************************************************
void RDBController::slotSelectFrame(int frameNo, int threadNo, const TQString& frameName)
{
if (stateIsOn(s_appBusy|s_dbgNotStarted|s_shuttingDown)) {
kdDebug(9012) << "RDBController::slotSelectFrame wrong state" << endl;
return;
}
if (viewedThread_ != threadNo) {
// Note that 'thread switch nnn' is a run command
queueCmd(new RDBCommand(TQCString().sprintf("thread switch %d",
threadNo), RUNCMD, INFOCMD));
executeCmd();
return;
}
if (frameNo > currentFrame_) {
queueCmd(new RDBCommand(TQCString().sprintf("up %d", frameNo - currentFrame_), NOTRUNCMD, INFOCMD));
if (!stateIsOn(s_fetchLocals)) {
queueCmd(new RDBCommand("display", NOTRUNCMD, INFOCMD));
}
} else if (frameNo < currentFrame_) {
queueCmd(new RDBCommand(TQCString().sprintf("down %d", currentFrame_ - frameNo), NOTRUNCMD, INFOCMD));
if (!stateIsOn(s_fetchLocals)) {
queueCmd(new RDBCommand("display", NOTRUNCMD, INFOCMD));
}
}
// Hold on to this thread/frame so that we know where to put the local
// variables if generated.
viewedThread_ = threadNo;
currentFrame_ = frameNo;
VarFrameRoot *frame = varTree_->findFrame(frameNo, viewedThread_);
if (frame == 0) {
frame = new VarFrameRoot(varTree_, currentFrame_, viewedThread_);
}
frame->setFrameName(frameName);
varTree_->setSelected(frame, true);
// Have we already got these details?
if (frame->needsVariables()) {
// Ask for the locals
if (showConstants_) {
queueCmd(new RDBCommand("var const self.class", NOTRUNCMD, INFOCMD));
}
queueCmd(new RDBCommand("var instance self", NOTRUNCMD, INFOCMD));
queueCmd(new RDBCommand("var class self.class", NOTRUNCMD, INFOCMD));
queueCmd(new RDBCommand("var local", NOTRUNCMD, INFOCMD));
frame->startWaitingForData();
}
if (currentCmd_ == 0) {
executeCmd();
}
return;
}
// **************************************************************************
// This is called when an item needs special processing to show a value.
void RDBController::slotExpandItem(VarItem *item, const TQCString &userRequest)
{
if (stateIsOn(s_appBusy|s_dbgNotStarted|s_shuttingDown))
return;
Q_ASSERT(item != 0);
// Bad user data!!
if (userRequest.isEmpty())
return;
queueCmd(new RDBItemCommand(item, TQCString("pp ") + userRequest.data(), false));
if (currentCmd_ == 0) {
executeCmd();
}
}
// **************************************************************************
// This method evaluates text selected with the 'Inspect:' context menu
void RDBController::slotRubyInspect(const TQString &inspectText)
{
queueCmd(new RDBCommand( TQCString().sprintf("p %s", inspectText.latin1()),
NOTRUNCMD,
INFOCMD ), true );
executeCmd();
}
// **************************************************************************
// Add a new expression to be displayed in the Watch variable tree
void RDBController::slotAddWatchExpression(const TQString& expr, bool execute)
{
queueCmd(new RDBCommand( TQCString().sprintf("display %s", expr.latin1()),
NOTRUNCMD,
NOTINFOCMD ) );
if (execute) {
executeCmd();
}
}
// **************************************************************************
// Add a new expression to be displayed in the Watch variable tree
void RDBController::slotRemoveWatchExpression(int displayId)
{
queueCmd(new RDBCommand( TQCString().sprintf("undisplay %d", displayId),
NOTRUNCMD,
INFOCMD ) );
executeCmd();
}
// **************************************************************************
// The user will only get globals if the Global frame is open
void RDBController::slotFetchGlobals(bool fetch)
{
if (fetch) {
setStateOn(s_fetchGlobals);
queueCmd(new RDBCommand("var global", NOTRUNCMD, INFOCMD));
executeCmd();
} else {
setStateOff(s_fetchGlobals);
}
kdDebug(9012) << (fetch ? "<Globals ON>": "<Globals OFF>") << endl;
}
// **************************************************************************
// Data from the ruby program's stdout gets processed here.
void RDBController::slotDbgStdout(KProcess *, char *buf, int buflen)
{
TQCString msg(buf, buflen+1);
emit ttyStdout(msg);
}
// **************************************************************************
// Data from the ruby program's stderr gets processed here.
void RDBController::slotDbgStderr(KProcess *, char *buf, int buflen)
{
TQCString msg(buf, buflen+1);
emit ttyStderr(msg);
}
// **************************************************************************
void RDBController::slotDbgWroteStdin(KProcess *)
{
// setStateOff(s_waitForWrite);
// if (!stateIsOn(s_silent))
// emit dbgStatus ("", state_);
// executeCmd();
}
// **************************************************************************
void RDBController::slotAcceptConnection(int masterSocket)
{
Q_ASSERT(masterSocket == masterSocket_);
struct sockaddr sockaddr;
socklen_t fromlen;
if (socketNotifier_ != 0) {
close(socket_);
delete socketNotifier_;
}
socket_ = accept(masterSocket, &sockaddr, &fromlen);
if (fcntl(socket_, F_SETFL, O_NONBLOCK) == -1) {
kdDebug(9012) << "RDBController::slotAcceptConnection can't set nonblocking socket " << errno << endl;
}
socketNotifier_ = new TQSocketNotifier(socket_, TQSocketNotifier::Read, 0);
TQObject::connect( socketNotifier_, TQT_SIGNAL(activated(int)),
this, TQT_SLOT(slotReadFromSocket(int)) );
setStateOff(s_dbgNotStarted);
emit dbgStatus ("", state_);
cmdList_.clear();
rdbOutputLen_ = 0;
// Organise any breakpoints.
emit acceptPendingBPs();
if (traceIntoRuby_) {
queueCmd(new RDBCommand("trace_ruby on", NOTRUNCMD, NOTINFOCMD));
}
queueCmd(new RDBCommand("cont", RUNCMD, NOTINFOCMD));
// Reset the display id for any watch expressions already in the variable tree
varTree_->resetWatchVars();
}
// **************************************************************************
// Output from rdb via the Unix socket gets processed here.
void RDBController::slotReadFromSocket(int socket)
{
Q_ASSERT(socket == socket_);
static bool parsing = false;
int bytesRead = read(socket, rdbOutput_ + rdbOutputLen_, rdbSizeofBuf_);
rdbOutputLen_ += bytesRead;
*(rdbOutput_ + rdbOutputLen_) = 0;
// Already parsing? then get out quick.
if (parsing)
{
kdDebug(9012) << "Already parsing" << endl;
return;
}
// kdDebug(9012) << "RDBController::slotReadFromSocket length: " << rdbOutputLen_ << " input: " << rdbOutput_ << endl;
TQRegExp prompt_re("(\\(rdb:(\\d+)\\) )$");
int promptPos = prompt_re.search(rdbOutput_, 0);
// Keep appending output to the rbdOutput_ buffer until the
// ruby debugger writes the next prompt
if (promptPos == -1) {
return;
}
// kdDebug(9012) << "RDBController::slotReadFromSocket length: " << rdbOutputLen_ << " input: " << rdbOutput_ << endl;
// Save the prompt, and remove it from the buffer
currentPrompt_ = prompt_re.cap(1).latin1();
rdbOutputLen_ -= prompt_re.matchedLength();
*(rdbOutput_ + rdbOutputLen_) = 0;
emit rdbStdout(rdbOutput_);
parsing = true;
parse(rdbOutput_);
parsing = false;
rdbOutputLen_ = 0;
executeCmd();
if (currentCmd_ == 0 && stateIsOn(s_fetchLocals)) {
if (!varTree_->schedule()) {
setStateOff(s_fetchLocals);
}
}
}
// **************************************************************************
void RDBController::slotDbgProcessExited(KProcess*)
{
destroyCmds();
state_ = s_appNotStarted|s_programExited|(state_&(s_shuttingDown));
emit dbgStatus (i18n("Process exited"), state_);
emit rdbStdout("(rdb:1) Process exited\n");
frameStack_->clear();
varTree_->clear();
if (socketNotifier_ != 0) {
delete socketNotifier_;
socketNotifier_ = 0;
close(socket_);
}
delete dbgProcess_; dbgProcess_ = 0;
delete tty_; tty_ = 0;
}
// **************************************************************************
// Takes abbreviated commands and expands them, before passing them on to rdb
//
void RDBController::slotUserRDBCmd(const TQString& cmd)
{
kdDebug(9012) << "Requested user cmd: " << cmd << endl;
TQRegExp break_re("^b(reak)?(\\s.*)?");
TQRegExp watch_re("^wat(ch)?\\s+(.*)");
TQRegExp delete_re("^del(ete)?(\\s.*)?");
TQRegExp display_re("^disp(lay)?(\\s.*)?");
TQRegExp undisplay_re("^undisp(lay)?(\\s.*)?");
TQRegExp step_re("^s(tep)?(\\s[\\d]+)?$");
TQRegExp next_re("^n(ext)?(\\s[\\d]+)?$");
TQRegExp varlocal_re("^v(ar)?\\s+l(ocal)?");
TQRegExp varglobal_re("^v(ar)?\\s+g(lobal)?");
TQRegExp varinstance_re("^v(ar)?\\s+i(nstance)?\\s(.*)");
TQRegExp varconst_re("^v(ar)?\\s+c(onst)?\\s(.*)");
TQRegExp threadlist_re("^th(read)?\\s+l(ist)?");
TQRegExp threadcurrent_re("^th(read)?(\\sc(ur(rent)?)?)?$");
TQRegExp threadswitch_re("^th(read)?(\\ssw(itch)?)?(\\s.*)");
TQRegExp thread_re("^th(read)?(\\s+.*)?");
TQRegExp methodinstance_re("^m(ethod)?\\s+i(nstance)?\\s+(.*)");
TQRegExp method_re("^m(ethod)?\\s+(.*)");
TQRegExp list_re("^l(ist)?(\\s+\\d+-\\d+)?$");
if ( break_re.search(cmd) >= 0 ) {
queueCmd(new RDBCommand( TQCString().sprintf("break%s", break_re.cap(2).latin1()),
NOTRUNCMD,
INFOCMD ), true );
} else if ( watch_re.search(cmd) >= 0 ) {
queueCmd(new RDBCommand( TQCString().sprintf("watch %s", watch_re.cap(2).latin1()),
NOTRUNCMD,
INFOCMD ), true );
} else if ( delete_re.search(cmd) >= 0 ) {
queueCmd(new RDBCommand( TQCString().sprintf("delete%s", delete_re.cap(2).latin1()),
NOTRUNCMD,
INFOCMD ), true );
} else if ( display_re.search(cmd) >= 0 ) {
queueCmd(new RDBCommand( TQCString().sprintf("display%s", display_re.cap(2).latin1()),
NOTRUNCMD,
INFOCMD ), true );
} else if ( undisplay_re.search(cmd) >= 0 ) {
queueCmd(new RDBCommand( TQCString().sprintf("undisplay%s", undisplay_re.cap(2).latin1()),
NOTRUNCMD,
INFOCMD ), true );
} else if ( step_re.search(cmd) >= 0 ) {
queueCmd(new RDBCommand( TQCString().sprintf("step%s", step_re.cap(2).latin1()),
RUNCMD,
INFOCMD ), true );
} else if ( next_re.search(cmd) >= 0 ) {
queueCmd(new RDBCommand( TQCString().sprintf("next%s", next_re.cap(2).latin1()),
RUNCMD,
INFOCMD ), true );
} else if ( varlocal_re.search(cmd) >= 0 ) {
queueCmd(new RDBCommand("var local", NOTRUNCMD, INFOCMD));
} else if ( varglobal_re.search(cmd) >= 0 ) {
queueCmd(new RDBCommand("var global", NOTRUNCMD, INFOCMD));
} else if ( varinstance_re.search(cmd) >= 0 ) {
queueCmd(new RDBCommand( TQCString().sprintf("var instance %s", varinstance_re.cap(3).latin1()),
NOTRUNCMD,
INFOCMD ), true );
} else if ( varconst_re.search(cmd) >= 0 ) {
queueCmd(new RDBCommand( TQCString().sprintf("var const %s", varconst_re.cap(3).latin1()),
NOTRUNCMD,
INFOCMD ), true );
} else if ( methodinstance_re.search(cmd) >= 0 ) {
queueCmd(new RDBCommand( TQCString().sprintf("method instance %s", methodinstance_re.cap(3).latin1()),
NOTRUNCMD,
INFOCMD ), true );
} else if ( method_re.search(cmd) >= 0 ) {
queueCmd(new RDBCommand( TQCString().sprintf("method %s", method_re.cap(2).latin1()),
NOTRUNCMD,
INFOCMD ), true );
} else if ( list_re.search(cmd) >= 0 ) {
queueCmd(new RDBCommand( TQCString().sprintf("list%s", list_re.cap(2).latin1()),
NOTRUNCMD,
INFOCMD ), true );
} else if (cmd == "c" || cmd == "cont") {
queueCmd(new RDBCommand("cont", RUNCMD, NOTINFOCMD));
} else if (cmd == "fi" || cmd == "finish") {
queueCmd(new RDBCommand("finish", RUNCMD, NOTINFOCMD));
} else if ( threadlist_re.search(cmd) >= 0 ) {
queueCmd(new RDBCommand("thread list", NOTRUNCMD, INFOCMD), true);
} else if ( threadcurrent_re.search(cmd) >= 0 ) {
queueCmd(new RDBCommand("thread current", NOTRUNCMD, INFOCMD), true );
} else if ( threadswitch_re.search(cmd) >= 0 ) {
queueCmd(new RDBCommand( TQCString().sprintf("thread switch%s", threadswitch_re.cap(4).latin1()),
RUNCMD,
INFOCMD ), true );
} else if ( thread_re.search(cmd) >= 0 ) {
queueCmd(new RDBCommand( TQCString().sprintf("thread%s", thread_re.cap(2).latin1()),
NOTRUNCMD,
INFOCMD ), true );
} else if (cmd == "frame" || cmd == "f" || cmd == "where" || cmd == "w") {
queueCmd(new RDBCommand("where", NOTRUNCMD, INFOCMD), true);
} else if (cmd == "q" || cmd == "quit") {
slotStopDebugger();
return;
} else {
kdDebug(9012) << "Passing directly to rdb: " << cmd << endl;
queueCmd(new RDBCommand(cmd.latin1(), NOTRUNCMD, INFOCMD));
}
executeCmd();
}
}
// **************************************************************************
// **************************************************************************
// **************************************************************************
#include "rdbcontroller.moc"
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