barrier/lib/mt/XThread.h
crs c405c58c64 Renamed XThreadUnavailable to XMTThreadUnavailable and derived it
from XBase so it can be caught normally.  Changed client and server
to handle unavailable threads (in main loop, anyway).
2002-10-15 22:01:41 +00:00

59 lines
1.7 KiB
C++

/*
* synergy -- mouse and keyboard sharing utility
* Copyright (C) 2002 Chris Schoeneman
*
* This package is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* found in the file COPYING that should have accompanied this file.
*
* This package is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef XTHREAD_H
#define XTHREAD_H
//! Generic thread exception
/*!
Exceptions derived from this class are used by the multithreading
library to perform stack unwinding when a thread terminates. These
exceptions must always be rethrown by clients when caught.
*/
class XThread { };
//! Thread exception to exit
/*!
Thrown by CThread::exit() to exit a thread. Clients of CThread
must not throw this type but must rethrow it if caught (by
XThreadExit, XThread, or ...).
*/
class XThreadExit : public XThread {
public:
//! \c result is the result of the thread
XThreadExit(void* result) : m_result(result) { }
~XThreadExit() { }
public:
void* m_result;
};
//! Thread exception to cancel
/*!
Thrown to cancel a thread. Clients must not throw this type, but
must rethrow it if caught (by XThreadCancel, XThread, or ...).
*/
class XThreadCancel : public XThread { };
/*!
\def RETHROW_XTHREAD
Convenience macro to rethrow an XThread exception but ignore other
exceptions. Put this in your catch (...) handler after necessary
cleanup but before leaving or returning from the handler.
*/
#define RETHROW_XTHREAD \
try { throw; } catch (XThread&) { throw; } catch (...) { }
#endif