/usr/include/dnscore/logger_handle.h is in libyadifa-dev 2.1.6-1.
This file is owned by root:root, with mode 0o644.
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*
* Copyright (c) 2011-2016, EURid. All rights reserved.
* The YADIFA TM software product is provided under the BSD 3-clause license:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of EURid nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*------------------------------------------------------------------------------
*
*/
/** @defgroup logger Logging functions
* @ingroup dnscore
* @brief
*
*
*
* @{
*
*----------------------------------------------------------------------------*/
#ifndef _LOGGER_HANDLE_H
#define _LOGGER_HANDLE_H
#include <syslog.h>
#include <dnscore/ptr_vector.h>
#include <dnscore/format.h>
/*
* Basically a copy from syslog
*/
#define MSG_EMERG 0 /* system is unusable */
#define MSG_ALERT 1 /* action must be taken immediately */
#define MSG_CRIT 2 /* critical conditions */
#define MSG_ERR 3 /* error conditions */
#define MSG_WARNING 4 /* warning conditions */
#define MSG_NOTICE 5 /* normal, but significant, condition */
#define MSG_INFO 6 /* informational message */
#define MSG_DEBUG 7 /* debug-level message */
#define MSG_DEBUG1 8 /* debug-level message */
#define MSG_DEBUG2 9 /* debug-level message */
#define MSG_DEBUG3 10 /* debug-level message */
#define MSG_DEBUG4 11 /* debug-level message */
#define MSG_DEBUG5 12 /* debug-level message */
#define MSG_DEBUG6 13 /* debug-level message */
#define MSG_DEBUG7 14 /* debug-level message */
#define MSG_ALL 15 /* all message levels */
#define MSG_ALL_MASK 0xffff /* all message levels as a bitmap */
#define MSG_PROD_MASK 0x007f /// non-debug message levels as a bitmap
#define MSG_LEVEL_COUNT 16
/**
* The default buffer size (0-cost) made available for each line.
* If the line is bigger the buffer's size is raised at a certain (non-nul)
* cost.
*
*/
#define DEFAULT_MAX_LINE_SIZE 128
#define LOG_QUEUE_MIN_SIZE 0x00000400 // 1K
#define LOG_QUEUE_MAX_SIZE 0x01000000 // 16M
#define LOG_QUEUE_DEFAULT_SIZE 0x00100000 // 1M
#ifdef __cplusplus
extern "C"
{
#endif
/**
* Handle
*/
typedef ptr_vector logger_channel_array;
struct logger_channel;
typedef struct logger_handle logger_handle;
struct logger_handle
{
logger_channel_array channels[MSG_LEVEL_COUNT];
const char *name;
const char *formatted_name;
struct logger_handle **global_reference;
u8 formatted_name_len;
};
/**
* Channel
*/
struct logger_channel_vtbl;
union logger_message;
struct logger_channel
{
void *data;
const struct logger_channel_vtbl *vtbl;
union logger_message *last_message;
u32 last_message_count;
s32 linked_handles;
};
typedef struct logger_channel logger_channel;
typedef ya_result logger_channel_constmsg_method(logger_channel* chan, int level, char* text, u32 text_len, u32 date_offset);
typedef ya_result logger_channel_msg_method(logger_channel* chan, int level, char* text, ...);
typedef ya_result logger_channel_vmsg_method(logger_channel* chan, int level, char* text, va_list args);
typedef void logger_channel_flush_method(logger_channel* chan);
typedef void logger_channel_close_method(logger_channel* chan);
typedef ya_result logger_channel_reopen_method(logger_channel* chan);
typedef struct logger_channel_vtbl logger_channel_vtbl;
struct logger_channel_vtbl
{
logger_channel_constmsg_method *constmsg;
logger_channel_msg_method *msg;
logger_channel_vmsg_method *vmsg;
logger_channel_flush_method *flush;
logger_channel_close_method *close;
logger_channel_reopen_method *reopen; /* So a HUP will flush, close then reopen/create the log files again */
const char *__class__;
};
#define logger_channel_msg(channel_,level_,text_, text_len_, date_offs_) (channel_)->vtbl->constmsg((channel_),(level_),(text_),(text_len_),(date_offs_))
#define logger_channel_msgf(channel_,level_,text_, ...) (channel_)->vtbl->msg((channel_),(level_),(text_),__VA_ARGS__)
#define logger_channel_vmsgf(channel_,level_,text_, args_) (channel_)->vtbl->msg((channel_),(level_),(text_),(args_))
#define logger_channel_flush(channel_) (channel_)->vtbl->flush(channel_)
#define logger_channel_reopen(channel_) (channel_)->vtbl->reopen(channel_)
#define logger_channel_close(channel_) (channel_)->vtbl->close(channel_)
/**
* Message flags
*/
#define LOGGER_MESSAGE_STD 0
#define LOGGER_MESSAGE_TIMEMS 1
#define LOGGER_MESSAGE_PREFIX 2
/**
* Allocates an empty channel
* Meant to be used by channels implementation
*/
logger_channel* logger_channel_alloc();
s32 logger_channel_get_usage_count(const char* channel_name);
void logger_channel_register(const char* channel_name, struct logger_channel *channel);
void logger_channel_unregister(const char* channel_name);
void logger_channel_close_all();
void logger_handle_create(const char *logger_name, logger_handle **handle_holder);
void logger_handle_add_channel(const char* logger_name, int level, const char* channel_name);
void logger_handle_remove_channel(const char *logger_name, const char *channel_name);
s32 logger_handle_count_channels(const char *logger_name);
void logger_handle_close(const char *logger_name);
/**
*
* Sends a formatted text to the logger
*
* @param handle handle to use, can be NULL
* @param level level of the message
* @param fmt format string
* @param args parameters for the format
*/
void logger_handle_vmsg(logger_handle* handle, u32 level, const char* fmt, va_list args);
/**
*
* Sends a formatted text to the logger
*
* @param handle handle to use, can be NULL
* @param level level of the message
* @param fmt format string
* @param ... parameters for the format
*/
void logger_handle_msg(logger_handle* handle, u32 level, const char* fmt, ...);
/**
*
* Sends a text to the logger
*
* @param handle handle to use, can be NULL
* @param level level of the message
* @param text text to send
* @param text_len length of the text to send
*/
void logger_handle_msg_text(logger_handle *handle, u32 level, const char* text, u32 text_len);
/**
*
* Sends a text to the logger with a prefix
*
* @param handle handle to use, can be NULL
* @param level level of the message
* @param text text to send
* @param text_len text length
* @param prefix prefix
* @param prefix_len prefix length
* @param flags LOGGER_MESSAGE_* flags
*/
void logger_handle_msg_text_ext(logger_handle *handle, u32 level, const char* text, u32 text_len, const char* prefix, u32 prefix_len, u16 flags);
/**
* Sets the layout for the logged memory dumps
* Values MUST be set to (2^n)-1 with n >= 0
* Values MUST be < 256
*
* @param group_mask The mask to group the bytes together (ie: 3 for making groups of 4)
* @param separator_mask the mask to put a space separator every few bytes (ie: 3 for every 4 bytes)
*
*/
void log_memdump_set_layout(u32 group_mask, u32 separator_mask);
/**
* Dumps memory in to the logger
*
* @param hndl handle to use, can be NULL
* @param level level of the message
* @param data_pointer memory to dump
* @param size size of the memory to dump
* @param line_size length of a line
* @param flags see osprint_dump for details: OSPRINT_DUMP_ADDRESS, OSPRINT_DUMP_HEX, OSPRINT_DUMP_TEXT
*/
void log_memdump_ex(logger_handle* hndl, u32 level, const void* data_pointer, size_t size, size_t line_size, u32 flags);
void log_memdump(logger_handle* hndl, u32 level, const void* data_pointer, size_t size, size_t line_size);
void logger_handle_exit_level(u32 level);
void logger_handle_finalize();
void logger_set_level(u8 level);
#define LOG_MEMDUMP_LAYOUT_DENSE 0xff,0xff
#define LOG_MEMDUMP_LAYOUT_ERIC 3,0xff
#define LOG_MEMDUMP_LAYOUT_GERY 0,3
/*
* GCC style :
*
* #define debug(vararg...) logger_handle_msg(NULL,MSG_DEBUG,vararg)
*
* C99 style :
*
* #define debug(...) logger_handle_msg(NULL,MSG_DEBUG,__VA_ARGS__)
*
*/
#if defined(MODULE_MSG_HANDLE)
#define debug(...) logger_handle_msg((MODULE_MSG_HANDLE),MSG_DEBUG,__VA_ARGS__)
#else
#define debug(...) logger_handle_msg(NULL,MSG_DEBUG,__VA_ARGS__)
#endif
/**
* LOG_TEXT_PREFIX is a text constant that will be prefixed to every text logged in the current source file.
* It is a constant that MUST be set before including logger_handle.h (or any logger header)
*/
#if !defined(LOG_TEXT_PREFIX)
#define LOG_TEXT_PREFIX
#endif
#define log_debug7(...) logger_handle_msg(MODULE_MSG_HANDLE,MSG_DEBUG7,LOG_TEXT_PREFIX __VA_ARGS__)
#define log_debug6(...) logger_handle_msg(MODULE_MSG_HANDLE,MSG_DEBUG6,LOG_TEXT_PREFIX __VA_ARGS__)
#define log_debug5(...) logger_handle_msg(MODULE_MSG_HANDLE,MSG_DEBUG5,LOG_TEXT_PREFIX __VA_ARGS__)
#define log_debug4(...) logger_handle_msg(MODULE_MSG_HANDLE,MSG_DEBUG4,LOG_TEXT_PREFIX __VA_ARGS__)
#define log_debug3(...) logger_handle_msg(MODULE_MSG_HANDLE,MSG_DEBUG3,LOG_TEXT_PREFIX __VA_ARGS__)
#define log_debug2(...) logger_handle_msg(MODULE_MSG_HANDLE,MSG_DEBUG2,LOG_TEXT_PREFIX __VA_ARGS__)
#define log_debug1(...) logger_handle_msg(MODULE_MSG_HANDLE,MSG_DEBUG1,LOG_TEXT_PREFIX __VA_ARGS__)
#define log_debug(...) logger_handle_msg(MODULE_MSG_HANDLE,MSG_DEBUG,LOG_TEXT_PREFIX __VA_ARGS__)
#define log_notice(...) logger_handle_msg(MODULE_MSG_HANDLE,MSG_NOTICE,LOG_TEXT_PREFIX __VA_ARGS__)
#define log_info(...) logger_handle_msg(MODULE_MSG_HANDLE,MSG_INFO,LOG_TEXT_PREFIX __VA_ARGS__)
#define log_warn(...) logger_handle_msg(MODULE_MSG_HANDLE,MSG_WARNING,LOG_TEXT_PREFIX __VA_ARGS__)
#define log_err(...) logger_handle_msg(MODULE_MSG_HANDLE,MSG_ERR,LOG_TEXT_PREFIX __VA_ARGS__)
/* Obsolete, Critical error: quit */
#define log_quit(...) logger_handle_msg(MODULE_MSG_HANDLE,MSG_CRIT,LOG_TEXT_PREFIX __VA_ARGS__)
/* Critical error: quit */
#define log_crit(...) logger_handle_msg(MODULE_MSG_HANDLE,MSG_CRIT,LOG_TEXT_PREFIX __VA_ARGS__)
/* Emergency: quit */
#define log_emerg(...) logger_handle_msg(MODULE_MSG_HANDLE,MSG_EMERG,LOG_TEXT_PREFIX __VA_ARGS__)
/* -7----------------------------------------------------------------------------
*
* MACROS
*/
#ifdef DEBUG
#define DERROR_MSG(...) logger_handle_msg(MODULE_MSG_HANDLE,MSG_ERR,__VA_ARGS__)
#else
#define DERROR_MSG(...) /* nothing */
#endif /* DEBUG */
/**
* For practical reasons, the code for logger_init() is in logger_handle.c
*/
void logger_init();
/**
* For practical reasons, the code for logger_start() is in logger_handle.c
*/
void logger_start();
/**
* For practical reasons, the code for logger_stop() is in logger_handle.c
*/
void logger_stop();
/**
* For practical reasons, the code for logger_finalize() is in logger_handle.c
*/
void logger_finalize();
/**
* For practical reasons, the code for logger_flush() is in logger_handle.c
*/
void logger_flush();
/**
* For practical reasons, the code for logger_reopen() is in logger_handle.c
*/
void logger_reopen();
bool logger_is_running();
/**
* Sets the logger queue size
*/
u32 logger_set_queue_size(u32 n);
void logger_set_path(const char *path);
const char* logger_get_path();
void logger_set_uid(uid_t uid);
uid_t logger_get_uid();
void logger_set_gid(uid_t gid);
gid_t logger_get_gid();
#ifdef __cplusplus
}
#endif
#endif /* _LOGGER_HANDLE_H */
/** @} */
/*----------------------------------------------------------------------------*/
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