mariadb/server-tools/instance-manager/instance_options.h
unknown fb3d6c39a0 IM mostly fixed according to Brian's directions. Will need to do some additional option handling and cleanups
server-tools/instance-manager/Makefile.am:
  New file added
server-tools/instance-manager/client_func.c:
  typo fixed
server-tools/instance-manager/commands.cc:
  there are no admin-user snd admin-password fields anymore, so no need to show their values
server-tools/instance-manager/guardian.cc:
  Syncronization added -- now guardian wakes up whenever SIGCLD has been catched
server-tools/instance-manager/guardian.h:
  Condition variable declared
server-tools/instance-manager/instance.cc:
  Persistent connection to the instance removed. Now we use SIGTERM instead of com_shutdown for STOP. We also
  manage SIGCHLD ourselves now (therefore no double fork).
server-tools/instance-manager/instance.h:
  Pointer to the instance_map added, MySQL connection structures removed
server-tools/instance-manager/instance_map.cc:
  More syncronization added (to make proper STOP)
server-tools/instance-manager/instance_map.h:
  added condition variable and mutex for connection threads to wait for SIGCHLD
server-tools/instance-manager/instance_options.cc:
  defaults-handling methods have been added.
server-tools/instance-manager/instance_options.h:
  New functions and constants declared
server-tools/instance-manager/listener.cc:
  No changes here (bk bug?)
server-tools/instance-manager/manager.cc:
  SIGCHLD handling added
2005-01-25 13:54:56 +03:00

85 lines
2.7 KiB
C++

#ifndef INCLUDES_MYSQL_INSTANCE_MANAGER_INSTANCE_OPTIONS_H
#define INCLUDES_MYSQL_INSTANCE_MANAGER_INSTANCE_OPTIONS_H
/* Copyright (C) 2004 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#include <my_global.h>
#include <my_sys.h>
#ifdef __GNUC__
#pragma interface
#endif
/*
This class contains options of an instance and methods to operate them.
We do not provide this class with the means of synchronization as it is
supposed that options for instances are all loaded at once during the
instance_map initilization and we do not change them later. This way we
don't have to synchronize between threads.
*/
class Instance_options
{
public:
Instance_options() :
mysqld_socket(0), mysqld_datadir(0), mysqld_bind_address(0),
mysqld_pid_file(0), mysqld_port(0), mysqld_path(0), is_guarded(0),
filled_default_options(0)
{}
~Instance_options();
/* fills in argv */
int complete_initialization(const char *default_path,
const char *default_user,
const char *default_password);
int add_option(const char* option);
int init(const char *instance_name_arg);
pid_t get_pid();
void get_pid_filename(char *result);
int unlink_pidfile();
public:
/*
We need this value to be greater or equal then FN_REFLEN found in
my_global.h to use my_load_path()
*/
enum { MAX_PATH_LEN= 512 };
enum { MAX_NUMBER_OF_DEFAULT_OPTIONS= 2 };
enum { MEM_ROOT_BLOCK_SIZE= 512 };
char **argv;
/* We need the some options, so we store them as a separate pointers */
const char *mysqld_socket;
const char *mysqld_datadir;
const char *mysqld_bind_address;
const char *mysqld_pid_file;
const char *mysqld_port;
uint instance_name_len;
const char *instance_name;
const char *mysqld_path;
const char *is_guarded;
DYNAMIC_ARRAY options_array;
private:
int add_to_argv(const char *option);
int get_default_option(char *result, const char *option_name,
size_t result_len);
private:
uint filled_default_options;
MEM_ROOT alloc;
};
#endif /* INCLUDES_MYSQL_INSTANCE_MANAGER_INSTANCE_OPTIONS_H */