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/* -*- mode: C++; tab-width: 4 -*- */
/* ===================================================================== *\
Copyright (c) 2000-2001 Palm, Inc. or its subsidiaries.
All rights reserved.
This file is part of the Palm OS Emulator.
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 "EmCommon.h"
#include "EmException.h"
#include "EmPalmFunction.h" // GetTrapName
#include "EmSession.h" // gSession
#include "ErrorHandling.h" // Errors::DoDialog
#include "Hordes.h" // Hordes::Stop
#include "Platform.h" // Platform::GetString
#include "Strings.r.h" // kStr_InternalErrorException
// ---------------------------------------------------------------------------
// ¥ EmException::EmException
// ---------------------------------------------------------------------------
EmException::EmException (void) throw () :
exception ()
{
}
// ---------------------------------------------------------------------------
// ¥ EmException::~EmException
// ---------------------------------------------------------------------------
EmException::~EmException (void) throw ()
{
}
#pragma mark -
// ---------------------------------------------------------------------------
// ¥ EmExceptionTopLevelAction::EmExceptionTopLevelAction
// ---------------------------------------------------------------------------
EmExceptionTopLevelAction::EmExceptionTopLevelAction (void) throw () :
EmException ()
{
}
// ---------------------------------------------------------------------------
// ¥ EmExceptionTopLevelAction::~EmExceptionTopLevelAction
// ---------------------------------------------------------------------------
EmExceptionTopLevelAction::~EmExceptionTopLevelAction (void) throw ()
{
}
#pragma mark -
// ---------------------------------------------------------------------------
// ¥ EmExceptionEnterDebugger::EmExceptionEnterDebugger
// ---------------------------------------------------------------------------
EmExceptionEnterDebugger::EmExceptionEnterDebugger (void) throw () :
EmExceptionTopLevelAction ()
{
}
// ---------------------------------------------------------------------------
// ¥ EmExceptionEnterDebugger::~EmExceptionEnterDebugger
// ---------------------------------------------------------------------------
EmExceptionEnterDebugger::~EmExceptionEnterDebugger (void) throw ()
{
}
// ---------------------------------------------------------------------------
// ¥ EmExceptionEnterDebugger::DoAction
// ---------------------------------------------------------------------------
void EmExceptionEnterDebugger::DoAction (void)
{
// We've already entered debug mode. The only thing left to do
// is stop Gremlins.
// !!! This should probably be changed so that the only thing
// done at the point of error/exception is the sending of the
// state packet to the debugger. If that succeeds, this exception
// is thrown and performs the real entry into debug mode. Right
// now, both those tasks are intertwined in Debug::EnterDebugger.
// If we're entering the debugger while running a Gremlin, save the events.
if (Hordes::IsOn ())
{
Hordes::SaveEvents ();
}
Hordes::Stop ();
}
#pragma mark -
// ---------------------------------------------------------------------------
// ¥ EmExceptionReset::EmExceptionReset
// ---------------------------------------------------------------------------
EmExceptionReset::EmExceptionReset (EmResetType type) throw () :
EmExceptionTopLevelAction (),
fType (type),
fWhat (),
fMessage (),
fException (0),
fTrapWord (0)
{
}
// ---------------------------------------------------------------------------
// ¥ EmExceptionReset::~EmExceptionReset
// ---------------------------------------------------------------------------
EmExceptionReset::~EmExceptionReset (void) throw ()
{
}
// ---------------------------------------------------------------------------
// ¥ EmExceptionReset::DoAction
// ---------------------------------------------------------------------------
void EmExceptionReset::DoAction (void)
{
EmAssert (gSession);
gSession->Reset (fType);
}
// ---------------------------------------------------------------------------
// ¥ EmExceptionReset::what
// ---------------------------------------------------------------------------
const char* EmExceptionReset::what (void) const throw ()
{
if (fWhat.empty ())
{
char buffer[1000] = {0};
string trapName (::GetTrapName (fTrapWord));
string errTemplate;
if (fException)
{
errTemplate = Platform::GetString (kStr_InternalErrorException);
sprintf (buffer, errTemplate.c_str (), fException, trapName.c_str ());
}
else if (!fMessage.empty ())
{
errTemplate = Platform::GetString (kStr_InternalErrorMessage);
sprintf (buffer, errTemplate.c_str (), fMessage.c_str (), trapName.c_str ());
}
if (strlen (buffer) > 0)
{
fWhat = buffer;
fWhat += Platform::GetString (kStr_WillNowReset);
}
}
return fWhat.c_str ();
}
// ---------------------------------------------------------------------------
// ¥ EmExceptionReset::Display
// ---------------------------------------------------------------------------
void EmExceptionReset::Display (void) const
{
// Generate fWhat.
this->what ();
// If there's something there, show it.
if (!fWhat.empty ())
{
Errors::DoDialog (this->what (), kDlgFlags_continue_debug_RESET, -1);
}
}
#pragma mark -
// ---------------------------------------------------------------------------
// ¥ EmExceptionNextGremlin::EmExceptionNextGremlin
// ---------------------------------------------------------------------------
EmExceptionNextGremlin::EmExceptionNextGremlin (void) throw () :
EmExceptionTopLevelAction ()
{
}
// ---------------------------------------------------------------------------
// ¥ EmExceptionNextGremlin::~EmExceptionNextGremlin
// ---------------------------------------------------------------------------
EmExceptionNextGremlin::~EmExceptionNextGremlin (void) throw ()
{
}
// ---------------------------------------------------------------------------
// ¥ EmExceptionNextGremlin::DoAction
// ---------------------------------------------------------------------------
void EmExceptionNextGremlin::DoAction (void)
{
Hordes::ErrorEncountered ();
// The previous session state has been safely tucked away in bed, and the
// next session state has been scheduled to be loaded. However, it will
// not actually be loaded until after the next opcode is executed. If
// that opcode causes an error (and may in fact be the reason for
// switching to a new Gremlin), then we'd end up executing it again. We
// don't want that, so let's run any queued "load next state" commands now.
EmAssert (gSession);
gSession->ExecuteSpecial (false);
}
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