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108 lines
3.4 KiB
C++
108 lines
3.4 KiB
C++
#ifndef INCLUDES_MYSQL_INSTANCE_MANAGER_INSTANCE_OPTIONS_H
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#define INCLUDES_MYSQL_INSTANCE_MANAGER_INSTANCE_OPTIONS_H
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/* Copyright (C) 2004 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#include <my_global.h>
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#include <my_sys.h>
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#include "parse.h"
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#include "portability.h"
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#if defined(__GNUC__) && defined(USE_PRAGMA_INTERFACE)
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#pragma interface
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#endif
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/*
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This class contains options of an instance and methods to operate them.
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We do not provide this class with the means of synchronization as it is
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supposed that options for instances are all loaded at once during the
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instance_map initilization and we do not change them later. This way we
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don't have to synchronize between threads.
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*/
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#define USUAL_INSTANCE 0
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#define DEFAULT_SINGLE_INSTANCE 1
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class Instance_options
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{
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public:
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Instance_options() :
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mysqld_version(0), mysqld_socket(0), mysqld_datadir(0),
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mysqld_bind_address(0), mysqld_pid_file(0), mysqld_port(0),
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mysqld_port_val(0), mysqld_path(0), mysqld_real_path(0),
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nonguarded(0), shutdown_delay(0),
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shutdown_delay_val(0), filled_default_options(0)
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{}
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~Instance_options();
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/* fills in argv */
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int complete_initialization(const char *default_path, uint instance_type);
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int add_option(const char* option);
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int init(const char *instance_name_arg);
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pid_t get_pid();
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int get_pid_filename(char *result);
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int unlink_pidfile();
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void print_argv();
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public:
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/*
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We need this value to be greater or equal then FN_REFLEN found in
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my_global.h to use my_load_path()
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*/
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enum { MAX_PATH_LEN= 512 };
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enum { MAX_NUMBER_OF_DEFAULT_OPTIONS= 2 };
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enum { MEM_ROOT_BLOCK_SIZE= 512 };
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char pid_file_with_path[MAX_PATH_LEN];
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char **argv;
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/*
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Here we cache the version string, obtained from mysqld --version.
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In the case when mysqld binary is not found we get NULL here.
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*/
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const char *mysqld_version;
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/* We need the some options, so we store them as a separate pointers */
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const char *mysqld_socket;
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const char *mysqld_datadir;
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const char *mysqld_bind_address;
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const char *mysqld_pid_file;
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const char *mysqld_port;
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uint mysqld_port_val;
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const char *instance_name;
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uint instance_name_len;
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const char *mysqld_path;
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uint mysqld_path_len;
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const char *mysqld_real_path;
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const char *nonguarded;
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const char *shutdown_delay;
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uint shutdown_delay_val;
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/* log enums are defined in parse.h */
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char *logs[3];
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/* this value is computed and cashed here */
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DYNAMIC_ARRAY options_array;
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private:
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int fill_log_options();
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int fill_instance_version();
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int fill_mysqld_real_path();
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int add_to_argv(const char *option);
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int get_default_option(char *result, size_t result_len,
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const char *option_name);
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private:
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uint filled_default_options;
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MEM_ROOT alloc;
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};
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#endif /* INCLUDES_MYSQL_INSTANCE_MANAGER_INSTANCE_OPTIONS_H */
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