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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit114a878c64ce6f8223cfd22d76a20eb16d177e5e (patch)
treeacaf47eb0fa12142d3896416a69e74cbf5a72242 /languages/cpp/debugger/gdbcommand.h
downloadtdevelop-114a878c64ce6f8223cfd22d76a20eb16d177e5e.tar.gz
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Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdevelop@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+/***************************************************************************
+ begin : Sun Aug 8 1999
+ copyright : (C) 1999 by John Birch
+ email : jbb@kdevelop.org
+ ***************************************************************************/
+
+/***************************************************************************
+ * *
+ * 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. *
+ * *
+ ***************************************************************************/
+
+#ifndef _GDBCOMMAND_H_
+#define _GDBCOMMAND_H_
+
+#include <qobject.h>
+#include <qstring.h>
+#include <qvaluevector.h>
+
+#include "mi/gdbmi.h"
+#include <qguardedptr.h>
+
+namespace GDBDebugger
+{
+
+
+class Breakpoint;
+class VarItem;
+class ValueCallback;
+
+/**
+ * @author John Birch
+ */
+
+class GDBCommand
+{
+public:
+ GDBCommand(const QString& command);
+
+ template<class Handler>
+ GDBCommand(const QString& command,
+ Handler* handler_this,
+ void (Handler::* handler_method)(const GDBMI::ResultRecord&),
+ bool handlesError = false);
+
+ /* The command that should be sent to gdb.
+ This method is virtual so the command can compute this
+ dynamically, possibly using results of the previous
+ commands.
+ If the empty string is returned, nothing is sent. */
+ virtual QString cmdToSend();
+
+ /* Returns the initial string that was specified in
+ ctor invocation. The actual command will be
+ determined by cmdToSend above and the return
+ value of this method is only used in various
+ diagnostic messages emitted before actually
+ sending the command. */
+ QString initialString() const;
+
+ /* Returns true if this is command entered by the user
+ and so should be always shown in the gdb output window. */
+ virtual bool isUserCommand() const;
+
+ // If there's a handler for this command, invokes it and returns true.
+ // Otherwise, returns false.
+ virtual bool invokeHandler(const GDBMI::ResultRecord& r);
+
+ // Returns 'true' if 'invokeHandler' should be invoked even
+ // on MI errors.
+ bool handlesError() const;
+
+ virtual ~GDBCommand();
+
+ // Called by gdbcontroller for each new output string
+ // gdb emits for this command. In MI mode, this includes
+ // all "stream" messages, but does not include MI responses.
+ void newOutput(const QString&);
+
+ const QValueVector<QString>& allStreamOutput() const;
+
+ // True if this command run then target for
+ // unspecified period of time -- that is either 'run' or
+ // 'continue'.
+ bool isRun() const;
+
+ void setRun(bool run);
+
+private:
+ QString command_;
+ QGuardedPtr<QObject> handler_this;
+ typedef void (QObject::* handler_t)(const GDBMI::ResultRecord&);
+ handler_t handler_method;
+ QValueVector<QString> lines;
+ bool run;
+
+protected: // FIXME: should be private, after I kill the first ctor
+ // that is obsolete and no longer necessary.
+ bool handlesError_;
+
+};
+
+class UserCommand : public GDBCommand
+{
+public:
+ UserCommand(const QString& s);
+
+ bool isUserCommand() const;
+};
+
+/** This command is used to change some property of breakpoint.
+ It holds a pointer to a Breakpoint object and will substitute
+ breakpoint id into the command string.
+
+ So, the command can be issued before the breakpoint id is know. That
+ is, it's possible to queue add + modify pair. The add command will
+ set breakpoint id and modify command will use it.
+*/
+class ModifyBreakpointCommand : public GDBCommand
+{
+public:
+ /** The 'comamnd' should include a single format specifier "%1" that
+ will be replaced with the id of breakpoint.
+ */
+ ModifyBreakpointCommand(const QString& command, const Breakpoint* bp);
+
+public: // DbgCommand overrides
+ virtual QString cmdToSend();
+
+private:
+ const Breakpoint* bp_;
+};
+
+/** This is a class for raw CLI commands. Instead of invoking
+ user provided hook with MI response, it invokes the a hook
+ with lists of strings.
+*/
+class CliCommand : public GDBCommand
+{
+public:
+ template<class Handler>
+ CliCommand(const QString& command,
+ Handler* handler_this,
+ void (Handler::* handler_method)(const QValueVector<QString>&),
+ bool handlesError = false);
+
+
+
+public: // GDBCommand overrides
+ bool invokeHandler(const GDBMI::ResultRecord& r);
+
+private:
+ QGuardedPtr<QObject> cli_handler_this;
+ typedef void (QObject::* cli_handler_t)(const QValueVector<QString>&);
+ cli_handler_t cli_handler_method;
+};
+
+/** Command that does nothing and can be just used to invoke
+ a user provided handler when all preceeding commands are
+ executed.
+*/
+class SentinelCommand : public GDBCommand
+{
+public:
+ typedef void (QObject::*handler_method_t)();
+
+ template<class Handler>
+ SentinelCommand(Handler* handler_this,
+ void (Handler::* handler_method)())
+ : GDBCommand(""),
+ handler_this(handler_this),
+ handler_method(static_cast<handler_method_t>(handler_method))
+ {}
+
+ void invokeHandler()
+ {
+ (handler_this->*handler_method)();
+ }
+
+ QString cmdToSend()
+ {
+ return "";
+ }
+
+private:
+ QGuardedPtr<QObject> handler_this;
+ handler_method_t handler_method;
+
+};
+
+/* Command for which we don't want any reply. */
+class ResultlessCommand : public QObject, public GDBCommand
+{
+public:
+ ResultlessCommand(const QString& command, bool handlesError = false)
+ : GDBCommand(command, this, &ResultlessCommand::handle, handlesError)
+ {}
+
+private:
+ void handle(const GDBMI::ResultRecord&)
+ {}
+};
+
+class ExpressionValueCommand : public QObject, public GDBCommand
+{
+public:
+ typedef void (QObject::*handler_method_t)(const QString&);
+
+ template<class Handler>
+ ExpressionValueCommand(
+ const QString& expression,
+ Handler* handler_this,
+ void (Handler::* handler_method)(const QString&))
+ : GDBCommand(("-data-evaluate-expression " + expression).ascii(), this,
+ &ExpressionValueCommand::handleResponse),
+ handler_this(handler_this),
+ handler_method(static_cast<handler_method_t>(handler_method))
+ {}
+
+ void handleResponse(const GDBMI::ResultRecord& r)
+ {
+ (handler_this->*handler_method)(r["value"].literal());
+ }
+
+private:
+ QGuardedPtr<QObject> handler_this;
+ handler_method_t handler_method;
+};
+
+
+
+template<class Handler>
+GDBCommand::GDBCommand(
+ const QString& command,
+ Handler* handler_this,
+ void (Handler::* handler_method)(const GDBMI::ResultRecord&),
+ bool handlesError)
+: command_(command),
+ handler_this(handler_this),
+ handler_method(static_cast<handler_t>(handler_method)),
+ run(false),
+ handlesError_(handlesError)
+{
+}
+
+template<class Handler>
+CliCommand::CliCommand(
+ const QString& command,
+ Handler* handler_this,
+ void (Handler::* handler_method)(const QValueVector<QString>&),
+ bool handlesError)
+: GDBCommand(command.latin1()),
+ cli_handler_this(handler_this),
+ cli_handler_method(static_cast<cli_handler_t>(handler_method))
+{
+ handlesError_ = handlesError;
+}
+
+
+
+
+}
+
+
+
+
+
+#endif