9ba7a0d955
Added new argument '-s' which takes additional argument composed of list of logfile identifiers. Logfiles listed with '-s' will be written on main memory instead of disk. In practice, the log file in question will be written in /dev/shm but corresponding symlink is added to log directory. In the case of name conflicts with log files and links, a differentiating sequence number is included in hte name of the file. This, however, is done only when existing file is not writable or is of different type (symlink <> file). Added new logfile LOGFILE_DEBUG whose contents will be largerly what was included up to date in trace log. Disabled feature which spreads writes to log files to others because of bug (#338) in the way block buffers are managed. Changed log manager parameters to match with the current implementation. List of arguments: "-h - help\n" "-a <debug prefix> ............(\"skygw_debug\")\n" "-b <debug suffix> ............(\".log\")\n" "-c <trace prefix> ............(\"skygw_trace\")\n" "-d <trace suffix> ............(\".log\")\n" "-e <message prefix> ............(\"skygw_msg\")\n" "-f <message suffix> ............(\".log\")\n" "-g <error prefix> ............(\"skygw_err\")\n" "-i <error suffix> ............(\".log\")\n" "-j <log path> ............(\"/tmp\")\n" "-s <shmem log file ids> ........(no default)\n"; dcb.c dcb_add_to_zombieslist, add dcb to the front of zombies list instead of inserting to the end of it. gateway.c Renamed shutdown_gateway to shutdown_server (Bug #131) Call skygw_logmanager_init so that trace and debug logs are written to shared memory. poll.c dcb.h Removed some dead code and references to unneeded mutexes. debugcmd.c Added enable/disable log command for debug log. skygw_utils.cc skygw_file_init now takes optional symlink name as a second argument. Symlink is created to point to the file being created.
75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/*
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* This file is distributed as part of the SkySQL Gateway. 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 SkySQL Ab 2013
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*/
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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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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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* 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, char* format, ...);
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int skygw_log_flush(logfile_id_t id);
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int skygw_log_write_flush(logfile_id_t id, 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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