barrier/mt/XThread.h

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#ifndef XTHREAD_H
#define XTHREAD_H
#include "common.h"
// generic thread exception
class XThread { };
// 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 {
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public:
XThreadExit(void* result) : m_result(result) { }
~XThreadExit() { }
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public:
void* m_result;
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};
// 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 { };
// 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