Event Trace for Windows work continues
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@ -29,21 +29,8 @@
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namespace winstd
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{
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class event_provider;
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class event_auto;
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template <class T> class event_auto_res;
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}
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#define WINSTD_ETW_ERROR(ep, key, f, ...) (ep).write ( TRACE_LEVEL_ERROR , key, _T(" ") _T(__FUNCTION__) _T(" ") f, ##__VA_ARGS__)
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#define WINSTD_ETW_WARNING(ep, key, f, ...) (ep).write ( TRACE_LEVEL_WARNING , key, _T(" ") _T(__FUNCTION__) _T(" ") f, ##__VA_ARGS__)
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#define WINSTD_ETW_INFO(ep, key, f, ...) (ep).write ( TRACE_LEVEL_INFORMATION, key, _T(" ") _T(__FUNCTION__) _T(" ") f, ##__VA_ARGS__)
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#define WINSTD_ETW_DEBUG(ep, key, f, ...) (ep).write ( TRACE_LEVEL_VERBOSE , key, _T(" ") _T(__FUNCTION__) _T(" ") f, ##__VA_ARGS__)
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#define WINSTD_ETW_FN_VOID_WARNING(ep, key) winstd::event_auto _event_auto(ep, TRACE_LEVEL_WARNING , key, _T("->") _T(__FUNCTION__), _T("<-") _T(__FUNCTION__))
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#define WINSTD_ETW_FN_VOID_INFO(ep, key) winstd::event_auto _event_auto(ep, TRACE_LEVEL_INFORMATION, key, _T("->") _T(__FUNCTION__), _T("<-") _T(__FUNCTION__))
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#define WINSTD_ETW_FN_VOID_DEBUG(ep, key) winstd::event_auto _event_auto(ep, TRACE_LEVEL_VERBOSE , key, _T("->") _T(__FUNCTION__), _T("<-") _T(__FUNCTION__))
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#define WINSTD_ETW_FN_WARNING(ep, key, res) winstd::event_auto_res<DWORD> _event_auto(ep, TRACE_LEVEL_WARNING , key, _T("->") _T(__FUNCTION__), _T("<-") _T(__FUNCTION__) _T(" (%ld)"), res)
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#define WINSTD_ETW_FN_INFO(ep, key, res) winstd::event_auto_res<DWORD> _event_auto(ep, TRACE_LEVEL_INFORMATION, key, _T("->") _T(__FUNCTION__), _T("<-") _T(__FUNCTION__) _T(" (%ld)"), res)
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#define WINSTD_ETW_FN_DEBUG(ep, key, res) winstd::event_auto_res<DWORD> _event_auto(ep, TRACE_LEVEL_VERBOSE , key, _T("->") _T(__FUNCTION__), _T("<-") _T(__FUNCTION__) _T(" (%ld)"), res)
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#pragma once
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@ -93,19 +80,105 @@ namespace winstd
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}
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///
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/// Writes an event.
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///
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/// \return
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/// - `ERROR_SUCCESS` when write succeeds;
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/// - error code otherwise.
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///
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/// \sa [EventWrite function](https://msdn.microsoft.com/en-us/library/windows/desktop/aa363752.aspx)
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///
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inline ULONG write(_In_ PCEVENT_DESCRIPTOR EventDescriptor, _In_ ULONG UserDataCount = 0, _In_opt_count_(UserDataCount) PEVENT_DATA_DESCRIPTOR UserData = NULL)
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{
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assert(m_h);
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return EventWrite(m_h, EventDescriptor, UserDataCount, UserData);
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}
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///
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/// Writes an event with no parameters.
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///
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/// \return
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/// - `ERROR_SUCCESS` when write succeeds;
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/// - error code otherwise.
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///
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/// \sa [EventWrite function](https://msdn.microsoft.com/en-us/library/windows/desktop/aa363752.aspx)
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///
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inline ULONG write(_In_ PCEVENT_DESCRIPTOR EventDescriptor)
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{
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assert(m_h);
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return EventWrite(m_h, EventDescriptor, 0, NULL);
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}
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///
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/// Writes an event with one parameter.
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///
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/// \return
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/// - `ERROR_SUCCESS` when write succeeds;
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/// - error code otherwise.
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///
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/// \sa [EventWrite function](https://msdn.microsoft.com/en-us/library/windows/desktop/aa363752.aspx)
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///
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template <class T1>
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inline ULONG write(_In_ PCEVENT_DESCRIPTOR EventDescriptor, _In_ const T1 param1)
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{
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assert(m_h);
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EVENT_DATA_DESCRIPTOR edd;
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EventDataDescCreate(&edd, ¶m1, (ULONG)(sizeof(T1)));
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return EventWrite(m_h, EventDescriptor, 1, &edd);
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}
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///
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/// Writes an event with one string as parameter.
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///
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/// \return
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/// - `ERROR_SUCCESS` when write succeeds;
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/// - error code otherwise.
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///
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/// \sa [EventWrite function](https://msdn.microsoft.com/en-us/library/windows/desktop/aa363752.aspx)
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///
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inline ULONG write(_In_ PCEVENT_DESCRIPTOR EventDescriptor, _In_ const char *param1)
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{
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assert(m_h);
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EVENT_DATA_DESCRIPTOR edd;
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EventDataDescCreate(&edd, param1, (ULONG)(strlen(param1) + 1)*sizeof(*param1));
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return EventWrite(m_h, EventDescriptor, 1, &edd);
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}
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///
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/// Writes an event with one wide string as parameter.
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///
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/// \return
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/// - `ERROR_SUCCESS` when write succeeds;
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/// - error code otherwise.
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///
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/// \sa [EventWrite function](https://msdn.microsoft.com/en-us/library/windows/desktop/aa363752.aspx)
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///
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inline ULONG write(_In_ PCEVENT_DESCRIPTOR EventDescriptor, _In_ const wchar_t *param1)
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{
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assert(m_h);
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EVENT_DATA_DESCRIPTOR edd;
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EventDataDescCreate(&edd, param1, (ULONG)(wcslen(param1) + 1)*sizeof(*param1));
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return EventWrite(m_h, EventDescriptor, 1, &edd);
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}
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///
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/// Writes a string event.
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///
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/// \return
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/// - `ERROR_SUCCESS` when creation succeeds;
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/// - `ERROR_SUCCESS` when write succeeds;
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/// - error code otherwise.
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///
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/// \sa [EventWriteString function](https://msdn.microsoft.com/en-us/library/windows/desktop/aa363750v=vs.85.aspx)
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///
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inline ULONG write(_In_ UCHAR Level, _In_ ULONGLONG Keyword, _In_ PCWSTR String, ...)
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{
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if (!m_h)
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return ERROR_NOT_SUPPORTED;
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assert(m_h);
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std::wstring msg;
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va_list arg;
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@ -161,63 +234,6 @@ namespace winstd
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}
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};
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// winstd::event_auto actually and winstd::event_auto_res<> do not need an assignment operator actually, so the C4512 warning is safely ignored.
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#pragma warning(push)
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#pragma warning(disable: 4512)
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///
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/// Helper class to write a string event on entry/exit of scope.
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///
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/// It writes one string event at creation and another at destruction.
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///
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class event_auto {
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public:
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inline event_auto(_In_ event_provider &ep, _In_ UCHAR Level, _In_ ULONGLONG Keyword, _In_z_ PCWSTR pszFormatEntry, _In_z_ PCWSTR pszFormatExit) :
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m_ep(ep),
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m_level(Level),
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m_keyword(Keyword),
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m_pszFormatExit(pszFormatExit)
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{
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m_ep.write(m_level, m_keyword, pszFormatEntry);
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}
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inline ~event_auto()
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{
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m_ep.write(m_level, m_keyword, m_pszFormatExit);
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}
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protected:
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event_provider &m_ep; // Reference to event provider in use
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UCHAR m_level; // Event level
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ULONGLONG m_keyword; // Event keyword mask
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PCWSTR m_pszFormatExit; // Pointer to string for string event at destruction
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};
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///
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/// Helper template to write a string event on entry/exit of scope with one parameter (typically result).
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///
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/// It writes one string event at creation and another at destruction, with allowing one sprintf type parameter for string event at destruction.
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///
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template <class T>
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class event_auto_res : public event_auto {
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public:
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inline event_auto_res(_In_ event_provider &ep, _In_ UCHAR Level, _In_ ULONGLONG Keyword, _In_z_ PCWSTR pszFormatEntry, _In_z_ PCWSTR pszFormatExit, _In_ T &tResult) :
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m_tResult(tResult),
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event_auto(ep, Level, Keyword, pszFormatEntry, pszFormatExit)
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{
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}
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inline ~event_auto_res()
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{
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m_ep.write(m_level, m_keyword, m_pszFormatExit, m_tResult);
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}
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protected:
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T &m_tResult; // Parameter for string event at destruction.
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};
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#pragma warning(pop)
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/// @}
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}
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