136 lines
3.9 KiB
C
136 lines
3.9 KiB
C
/*
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* This file is distributed as part of the MariaDB Corporation MaxScale. It is free
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* software: you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation,
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* version 2.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 51
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* Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Copyright MariaDB Corporation Ab 2013-2014
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*/
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#if !defined(LOG_MANAGER_H)
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# define LOG_MANAGER_H
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typedef struct filewriter_st filewriter_t;
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typedef struct logfile_st logfile_t;
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typedef struct fnames_conf_st fnames_conf_t;
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typedef struct logmanager_st logmanager_t;
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typedef enum {
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BB_READY = 0x00,
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BB_FULL,
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BB_CLEARED
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} blockbuf_state_t;
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typedef enum {
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LOGFILE_ERROR = 1,
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LOGFILE_FIRST = LOGFILE_ERROR,
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LOGFILE_MESSAGE = 2,
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LOGFILE_TRACE = 4,
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LOGFILE_DEBUG = 8,
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LOGFILE_LAST = LOGFILE_DEBUG
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} logfile_id_t;
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typedef enum { FILEWRITER_INIT, FILEWRITER_RUN, FILEWRITER_DONE }
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filewriter_state_t;
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/**
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* Thread-specific logging information.
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*/
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typedef struct log_info_st
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{
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size_t li_sesid;
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int li_enabled_logs;
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} log_info_t;
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#define LE LOGFILE_ERROR
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#define LM LOGFILE_MESSAGE
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#define LT LOGFILE_TRACE
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#define LD LOGFILE_DEBUG
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/**
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* Check if specified log type is enabled in general or if it is enabled
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* for the current session.
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*/
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#define LOG_IS_ENABLED(id) (((lm_enabled_logfiles_bitmask & id) || \
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(log_ses_count[id] > 0 && \
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tls_log_info.li_enabled_logs & id)) ? true : false)
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#define LOG_MAY_BE_ENABLED(id) (((lm_enabled_logfiles_bitmask & id) || \
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log_ses_count[id] > 0) ? true : false)
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/**
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* Execute the given command if specified log is enabled in general or
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* if there is at least one session for whom the log is enabled.
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*/
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#define LOGIF_MAYBE(id,cmd) if (LOG_MAY_BE_ENABLED(id)) \
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{ \
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cmd; \
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}
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/**
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* Execute the given command if specified log is enabled in general or
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* if the log is enabled for the current session.
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*/
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#define LOGIF(id,cmd) if (LOG_IS_ENABLED(id)) \
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{ \
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cmd; \
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}
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#if !defined(LOGIF)
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#define LOGIF(id,cmd) if (lm_enabled_logfiles_bitmask & id) \
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{ \
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cmd; \
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}
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#endif
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/**
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* UNINIT means zeroed memory buffer allocated for the struct.
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* INIT means that struct members may have values, and memory may
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* have been allocated. Done function must check and free it.
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* RUN Struct is valid for run-time checking.
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* DONE means that possible memory allocations have been released.
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*/
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typedef enum { UNINIT = 0, INIT, RUN, DONE } flat_obj_state_t;
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EXTERN_C_BLOCK_BEGIN
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bool skygw_logmanager_init(int argc, char* argv[]);
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void skygw_logmanager_done(void);
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void skygw_logmanager_exit(void);
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/**
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* free private write buffer list
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*/
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void skygw_log_done(void);
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int skygw_log_write(logfile_id_t id, const char* format, ...);
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int skygw_log_flush(logfile_id_t id);
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void skygw_log_sync_all(void);
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int skygw_log_rotate(logfile_id_t id);
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int skygw_log_write_flush(logfile_id_t id, const char* format, ...);
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int skygw_log_enable(logfile_id_t id);
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int skygw_log_disable(logfile_id_t id);
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EXTERN_C_BLOCK_END
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void writebuf_clear(void* data);
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const char* get_trace_prefix_default(void);
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const char* get_trace_suffix_default(void);
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const char* get_msg_prefix_default(void);
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const char* get_msg_suffix_default(void);
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const char* get_err_prefix_default(void);
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const char* get_err_suffix_default(void);
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const char* get_logpath_default(void);
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#endif /** LOG_MANAGER_H */
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