barrier/lib/mt/XThread.h

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#ifndef XTHREAD_H
#define XTHREAD_H
//! Generic thread exception
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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 ...).
*/
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class XThreadExit : public XThread {
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public:
//! \c result is the result of the thread
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XThreadExit(void* result) : m_result(result) { }
~XThreadExit() { }
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public:
void* m_result;
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};
//! 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 ...).
*/
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class XThreadCancel : public XThread { };
//! Thread creation exception
/*!
Thrown when a thread cannot be created.
*/
class XThreadUnavailable { };
/*!
\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.
*/
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#define RETHROW_XTHREAD \
try { throw; } catch (XThread&) { throw; } catch (...) { }
#endif