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Milestone 5: deliver embedded RDP sessions and lifecycle hardening
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/**
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* WinPR: Windows Portable Runtime
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* WinPR Logger
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*
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* Copyright 2013 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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* Copyright 2015 Thincast Technologies GmbH
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* Copyright 2015 Bernhard Miklautz <bernhard.miklautz@thincast.com>
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*
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef WINPR_LOG_H
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#define WINPR_LOG_H
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include <stdarg.h>
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#include <winpr/platform.h>
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#include <winpr/wtypes.h>
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#include <winpr/winpr.h>
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#include <winpr/synch.h>
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#include <winpr/thread.h>
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/**
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* Log Levels
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*/
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#define WLOG_TRACE 0
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#define WLOG_DEBUG 1
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#define WLOG_INFO 2
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#define WLOG_WARN 3
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#define WLOG_ERROR 4
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#define WLOG_FATAL 5
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#define WLOG_OFF 6
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#define WLOG_LEVEL_INHERIT 0xFFFF
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/** @defgroup LogMessageTypes Log Message
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* @{
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*/
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#define WLOG_MESSAGE_TEXT 0
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#define WLOG_MESSAGE_DATA 1
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#define WLOG_MESSAGE_IMAGE 2
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#define WLOG_MESSAGE_PACKET 3
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/**
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* @}
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*/
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/**
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* Log Appenders
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*/
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#define WLOG_APPENDER_CONSOLE 0
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#define WLOG_APPENDER_FILE 1
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#define WLOG_APPENDER_BINARY 2
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#define WLOG_APPENDER_CALLBACK 3
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#define WLOG_APPENDER_SYSLOG 4
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#define WLOG_APPENDER_JOURNALD 5
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#define WLOG_APPENDER_UDP 6
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typedef struct
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{
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DWORD Type;
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DWORD Level;
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LPSTR PrefixString;
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LPCSTR FormatString;
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LPCSTR TextString;
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size_t LineNumber; /* __LINE__ */
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LPCSTR FileName; /* __FILE__ */
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LPCSTR FunctionName; /* __func__ */
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/* Data Message */
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void* Data;
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size_t Length;
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/* Image Message */
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void* ImageData;
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size_t ImageWidth;
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size_t ImageHeight;
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size_t ImageBpp;
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/* Packet Message */
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void* PacketData;
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size_t PacketLength;
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DWORD PacketFlags;
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} wLogMessage;
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typedef struct s_wLogLayout wLogLayout;
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typedef struct s_wLogAppender wLogAppender;
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typedef struct s_wLog wLog;
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#define WLOG_PACKET_INBOUND 1
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#define WLOG_PACKET_OUTBOUND 2
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/** @brief specialized function to print text log messages.
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* Same as @ref WLog_PrintMessage with \b type = WLOG_MESSAGE_TEXT but with compile time checks
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* for issues in format string.
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*
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* @param log A pointer to the logger to use
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* @param line the file line the log message originates from
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* @param file the file name the log message originates from
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* @param function the function name the log message originates from
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* @param fmt the printf style format string
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*
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* @return \b TRUE for success, \b FALSE otherwise.
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* @since version 3.17.0
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*/
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WINPR_ATTR_FORMAT_ARG(6, 7)
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WINPR_API BOOL WLog_PrintTextMessage(wLog* log, DWORD level, size_t line, const char* file,
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const char* function, WINPR_FORMAT_ARG const char* fmt,
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...);
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/** @brief specialized function to print text log messages.
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* Same as @ref WLog_PrintMessageVA with \b type = WLOG_MESSAGE_TEXT but with compile time
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* checks for issues in format string.
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*
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* @param log A pointer to the logger to use
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* @param line the file line the log message originates from
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* @param file the file name the log message originates from
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* @param function the function name the log message originates from
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* @param fmt the printf style format string
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*
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* @return \b TRUE for success, \b FALSE otherwise.
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* @since version 3.17.0
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*/
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WINPR_ATTR_FORMAT_ARG(6, 0)
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WINPR_API BOOL WLog_PrintTextMessageVA(wLog* log, DWORD level, size_t line, const char* file,
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const char* function, WINPR_FORMAT_ARG const char* fmt,
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va_list args);
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/** @brief log something of a specified type.
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* @bug For /b WLOG_MESSAGE_TEXT the format string is not validated at compile time. Use \ref
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* WLog_PrintTextMessage instead.
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*
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* @param log A pointer to the logger to use
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* @param type The type of message to log, can be any of \ref LogMessageTypes
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* @param line the file line the log message originates from
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* @param file the file name the log message originates from
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* @param function the function name the log message originates from
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*
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* @return \b TRUE for success, \b FALSE otherwise.
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*/
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WINPR_API BOOL WLog_PrintMessage(wLog* log, DWORD type, DWORD level, size_t line,
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const char* file, const char* function, ...);
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/** @brief log something of a specified type.
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* @bug For /b WLOG_MESSAGE_TEXT the format string is not validated at compile time. Use \ref
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* WLog_PrintTextMessageVA instead.
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*
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* @param log A pointer to the logger to use
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* @param type The type of message to log, can be any of \ref LogMessageTypes
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* @param line the file line the log message originates from
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* @param file the file name the log message originates from
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* @param function the function name the log message originates from
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*
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* @return \b TRUE for success, \b FALSE otherwise.
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*/
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WINPR_API BOOL WLog_PrintMessageVA(wLog* log, DWORD type, DWORD level, size_t line,
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const char* file, const char* function, va_list args);
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WINPR_API wLog* WLog_GetRoot(void);
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WINPR_API wLog* WLog_Get(LPCSTR name);
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WINPR_API DWORD WLog_GetLogLevel(wLog* log);
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WINPR_API BOOL WLog_IsLevelActive(wLog* _log, DWORD _log_level);
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/** @brief Set a custom context for a dynamic logger.
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* This can be used to print a customized prefix, e.g. some session id for a specific context
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*
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* @param log The logger to ste the context for. Must not be \b nullptr
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* @param fkt A function pointer that is called to get the custimized string.
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* @param context A context \b fkt is called with. Caller must ensure it is still allocated
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* when \b log is used
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*
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* @return \b TRUE for success, \b FALSE otherwise.
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*/
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WINPR_API BOOL WLog_SetContext(wLog* log, const char* (*fkt)(void*), void* context);
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#define WLog_Print_unchecked(_log, _log_level, ...) \
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do \
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{ \
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WLog_PrintTextMessage(_log, _log_level, __LINE__, __FILE__, __func__, __VA_ARGS__); \
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} while (0)
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#define WLog_Print(_log, _log_level, ...) \
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do \
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{ \
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if (WLog_IsLevelActive(_log, _log_level)) \
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{ \
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WLog_Print_unchecked(_log, _log_level, __VA_ARGS__); \
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} \
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} while (0)
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#define WLog_Print_tag(_tag, _log_level, ...) \
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do \
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{ \
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static wLog* _log_cached_ptr = nullptr; \
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if (!_log_cached_ptr) \
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_log_cached_ptr = WLog_Get(_tag); \
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WLog_Print(_log_cached_ptr, _log_level, __VA_ARGS__); \
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} while (0)
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#define WLog_PrintVA_unchecked(_log, _log_level, _args) \
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do \
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{ \
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WLog_PrintTextMessageVA(_log, _log_level, __LINE__, __FILE__, __func__, _args); \
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} while (0)
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#define WLog_PrintVA(_log, _log_level, _args) \
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do \
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{ \
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if (WLog_IsLevelActive(_log, _log_level)) \
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{ \
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WLog_PrintVA_unchecked(_log, _log_level, _args); \
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} \
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} while (0)
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#define WLog_Data(_log, _log_level, ...) \
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do \
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{ \
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if (WLog_IsLevelActive(_log, _log_level)) \
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{ \
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WLog_PrintMessage(_log, WLOG_MESSAGE_DATA, _log_level, __LINE__, __FILE__, __func__, \
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__VA_ARGS__); \
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} \
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} while (0)
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#define WLog_Image(_log, _log_level, ...) \
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do \
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{ \
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if (WLog_IsLevelActive(_log, _log_level)) \
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{ \
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WLog_PrintMessage(_log, WLOG_MESSAGE_DATA, _log_level, __LINE__, __FILE__, __func__, \
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__VA_ARGS__); \
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} \
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} while (0)
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#define WLog_Packet(_log, _log_level, ...) \
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do \
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{ \
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if (WLog_IsLevelActive(_log, _log_level)) \
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{ \
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WLog_PrintMessage(_log, WLOG_MESSAGE_PACKET, _log_level, __LINE__, __FILE__, __func__, \
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__VA_ARGS__); \
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} \
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} while (0)
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WINPR_ATTR_FORMAT_ARG(6, 7)
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static inline void WLog_Print_dbg_tag(const char* WINPR_RESTRICT tag, DWORD log_level,
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size_t line, const char* file, const char* fkt,
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WINPR_FORMAT_ARG const char* fmt, ...)
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{
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static wLog* log_cached_ptr = nullptr;
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if (!log_cached_ptr)
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log_cached_ptr = WLog_Get(tag);
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if (WLog_IsLevelActive(log_cached_ptr, log_level))
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{
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va_list ap = WINPR_C_ARRAY_INIT;
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va_start(ap, fmt);
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WLog_PrintTextMessageVA(log_cached_ptr, log_level, line, file, fkt, fmt, ap);
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va_end(ap);
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}
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}
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#define WLog_LVL(tag, lvl, ...) \
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WLog_Print_dbg_tag(tag, lvl, __LINE__, __FILE__, __func__, __VA_ARGS__)
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#define WLog_VRB(tag, ...) \
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WLog_Print_dbg_tag(tag, WLOG_TRACE, __LINE__, __FILE__, __func__, __VA_ARGS__)
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#define WLog_DBG(tag, ...) \
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WLog_Print_dbg_tag(tag, WLOG_DEBUG, __LINE__, __FILE__, __func__, __VA_ARGS__)
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#define WLog_INFO(tag, ...) \
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WLog_Print_dbg_tag(tag, WLOG_INFO, __LINE__, __FILE__, __func__, __VA_ARGS__)
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#define WLog_WARN(tag, ...) \
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WLog_Print_dbg_tag(tag, WLOG_WARN, __LINE__, __FILE__, __func__, __VA_ARGS__)
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#define WLog_ERR(tag, ...) \
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WLog_Print_dbg_tag(tag, WLOG_ERROR, __LINE__, __FILE__, __func__, __VA_ARGS__)
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#define WLog_FATAL(tag, ...) \
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WLog_Print_dbg_tag(tag, WLOG_FATAL, __LINE__, __FILE__, __func__, __VA_ARGS__)
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WINPR_API BOOL WLog_SetLogLevel(wLog* log, DWORD logLevel);
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WINPR_API BOOL WLog_SetStringLogLevel(wLog* log, LPCSTR level);
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WINPR_API BOOL WLog_AddStringLogFilters(LPCSTR filter);
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WINPR_API BOOL WLog_SetLogAppenderType(wLog* log, DWORD logAppenderType);
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WINPR_API wLogAppender* WLog_GetLogAppender(wLog* log);
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WINPR_API BOOL WLog_OpenAppender(wLog* log);
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WINPR_API BOOL WLog_CloseAppender(wLog* log);
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WINPR_API BOOL WLog_ConfigureAppender(wLogAppender* appender, const char* setting, void* value);
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WINPR_API wLogLayout* WLog_GetLogLayout(wLog* log);
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WINPR_API BOOL WLog_Layout_SetPrefixFormat(wLog* log, wLogLayout* layout, const char* format);
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#if defined(WITH_WINPR_DEPRECATED)
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/** Deprecated */
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WINPR_DEPRECATED(WINPR_API BOOL WLog_Init(void));
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/** Deprecated */
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WINPR_DEPRECATED(WINPR_API BOOL WLog_Uninit(void));
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#endif
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typedef BOOL (*wLogCallbackMessage_t)(const wLogMessage* msg);
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typedef BOOL (*wLogCallbackData_t)(const wLogMessage* msg);
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typedef BOOL (*wLogCallbackImage_t)(const wLogMessage* msg);
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typedef BOOL (*wLogCallbackPackage_t)(const wLogMessage* msg);
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typedef struct
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{
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WINPR_ATTR_NODISCARD wLogCallbackData_t data;
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WINPR_ATTR_NODISCARD wLogCallbackImage_t image;
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WINPR_ATTR_NODISCARD wLogCallbackMessage_t message;
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WINPR_ATTR_NODISCARD wLogCallbackPackage_t package;
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} wLogCallbacks;
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#ifdef __cplusplus
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}
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#endif
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#endif /* WINPR_WLOG_H */
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