From b2d2d555a704148968cb7e566735a2a1b1a2f189 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 9 Apr 2024 14:48:01 +0200 Subject: Adding upstream version 4.5. Signed-off-by: Daniel Baumann --- logging.h | 143 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 143 insertions(+) create mode 100644 logging.h (limited to 'logging.h') diff --git a/logging.h b/logging.h new file mode 100644 index 0000000..ff2e30e --- /dev/null +++ b/logging.h @@ -0,0 +1,143 @@ +/* + chronyd/chronyc - Programs for keeping computer clocks accurate. + + ********************************************************************** + * Copyright (C) Richard P. Curnow 1997-2002 + * Copyright (C) Miroslav Lichvar 2013-2015 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program 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. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + ********************************************************************** + + ======================================================================= + + Header file for diagnostic logging module + + */ + +#ifndef GOT_LOGGING_H +#define GOT_LOGGING_H + +#include "sysincl.h" + +/* Line logging macros. If the compiler is GNU C, we take advantage of + being able to get the function name also. */ + +#ifdef __GNUC__ +#define FUNCTION_NAME __FUNCTION__ +#define FORMAT_ATTRIBUTE_PRINTF(str, first) __attribute__ ((format (printf, str, first))) +#else +#define FUNCTION_NAME "" +#define FORMAT_ATTRIBUTE_PRINTF(str, first) +#endif + +#if DEBUG > 0 +#define LOG_MESSAGE(severity, ...) \ + LOG_Message(severity, __LINE__, __FILE__, FUNCTION_NAME, __VA_ARGS__) +#else +#define LOG_MESSAGE(severity, ...) \ + LOG_Message(severity, __VA_ARGS__) +#endif + +#define DEBUG_LOG(...) \ + do { \ + if (DEBUG && log_min_severity == LOGS_DEBUG) \ + LOG_MESSAGE(LOGS_DEBUG, __VA_ARGS__); \ + } while (0) + +#define LOG_FATAL(...) \ + do { \ + LOG_MESSAGE(LOGS_FATAL, __VA_ARGS__); \ + exit(1); \ + } while (0) + +#define LOG(severity, ...) LOG_MESSAGE(severity, __VA_ARGS__) + +/* Definition of severity */ +typedef enum { + LOGS_DEBUG = -1, + LOGS_INFO = 0, + LOGS_WARN, + LOGS_ERR, + LOGS_FATAL, +} LOG_Severity; + +/* Minimum severity of messages to be logged */ +extern LOG_Severity log_min_severity; + +/* Init function */ +extern void LOG_Initialise(void); + +/* Fini function */ +extern void LOG_Finalise(void); + +/* Line logging function */ +#if DEBUG > 0 +FORMAT_ATTRIBUTE_PRINTF(5, 6) +extern void LOG_Message(LOG_Severity severity, int line_number, const char *filename, + const char *function_name, const char *format, ...); +#else +FORMAT_ATTRIBUTE_PRINTF(2, 3) +extern void LOG_Message(LOG_Severity severity, const char *format, ...); +#endif + +/* Set the minimum severity of a message to be logged or printed to terminal. + If the severity is LOGS_DEBUG and DEBUG is enabled, all messages will be + prefixed with the filename, line number, and function name. */ +extern void LOG_SetMinSeverity(LOG_Severity severity); + +/* Get the minimum severity */ +extern LOG_Severity LOG_GetMinSeverity(void); + +/* Flags for info messages that should be logged only in specific contexts */ +typedef enum { + LOGC_Command = 1, + LOGC_SourceFile = 2, +} LOG_Context; + +/* Modify current contexts */ +extern void LOG_SetContext(LOG_Context context); +extern void LOG_UnsetContext(LOG_Context context); + +/* Get severity depending on the current active contexts: INFO if they contain + at least one of the specified contexts, DEBUG otherwise */ +extern LOG_Severity LOG_GetContextSeverity(LOG_Context contexts); + +/* Set a prefix for debug messages */ +extern void LOG_SetDebugPrefix(const char *prefix); + +/* Log messages to a file instead of stderr, or stderr again if NULL */ +extern void LOG_OpenFileLog(const char *log_file); + +/* Log messages to syslog instead of stderr */ +extern void LOG_OpenSystemLog(void); + +/* Stop using stderr and send fatal message to the foreground process */ +extern void LOG_SetParentFd(int fd); + +/* Close the pipe to the foreground process so it can exit */ +extern void LOG_CloseParentFd(void); + +/* File logging functions */ + +typedef int LOG_FileID; + +extern LOG_FileID LOG_FileOpen(const char *name, const char *banner); + +FORMAT_ATTRIBUTE_PRINTF(2, 3) +extern void LOG_FileWrite(LOG_FileID id, const char *format, ...); + +extern void LOG_CycleLogFiles(void); + +#endif /* GOT_LOGGING_H */ -- cgit v1.2.3