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127 lines
3.5 KiB
C++
127 lines
3.5 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" /* for pid_t on Win32 */
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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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class Instance_options
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{
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public:
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/* The operation is used to check if the option is IM-specific or not. */
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static bool is_option_im_specific(const char *option_name);
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public:
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Instance_options();
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~Instance_options();
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bool complete_initialization();
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bool set_option(Named_value *option);
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void unset_option(const char *option_name);
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inline int get_num_options() const;
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inline Named_value get_option(int idx) const;
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public:
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bool init(const LEX_STRING *instance_name_arg);
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pid_t load_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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uint get_shutdown_delay() const;
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int get_mysqld_port() const;
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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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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_pid_file;
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LEX_STRING instance_name;
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LEX_STRING mysqld_path;
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LEX_STRING mysqld_real_path;
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const char *nonguarded;
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/* log enums are defined in parse.h */
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char *logs[3];
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private:
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bool fill_log_options();
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bool fill_instance_version();
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bool 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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void update_var(const char *option_name, const char *option_value);
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int find_option(const char *option_name);
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private:
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const char *mysqld_port;
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uint mysqld_port_val;
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const char *shutdown_delay;
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uint shutdown_delay_val;
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uint filled_default_options;
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MEM_ROOT alloc;
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Named_value_arr options;
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};
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inline int Instance_options::get_num_options() const
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{
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return options.get_size();
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}
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inline Named_value Instance_options::get_option(int idx) const
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{
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return options.get_element(idx);
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}
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#endif /* INCLUDES_MYSQL_INSTANCE_MANAGER_INSTANCE_OPTIONS_H */
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