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Merge weblab.(none):/home/marcsql/TREE/mysql-5.1-base
into weblab.(none):/home/marcsql/TREE/mysql-5.1-merge
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@ -36,14 +36,17 @@ extern int create_instance_in_file(const LEX_STRING *instance_name,
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const Named_value_arr *options);
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/*
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/**
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Instance_map - stores all existing instances
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*/
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class Instance_map
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{
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public:
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/* Instance_map iterator */
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/**
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Instance_map iterator
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*/
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class Iterator
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{
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private:
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@ -57,79 +60,43 @@ public:
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void go_to_first();
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Instance *next();
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};
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friend class Iterator;
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public:
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/*
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Return a pointer to the instance or NULL, if there is no such instance.
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MT-NOTE: must be called under acquired lock.
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*/
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Instance *find(const LEX_STRING *name);
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/* Clear the configuration cache and reload the configuration file. */
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int flush_instances();
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/* The operation is used to check if there is an active instance or not. */
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bool is_there_active_instance();
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void lock();
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void unlock();
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bool init();
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bool reset();
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int load();
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/*
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Process a given option and assign it to appropricate instance. This is
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required for the option handler, passed to my_search_option_files().
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*/
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int process_one_option(const LEX_STRING *group, const char *option);
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/*
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Add an instance into the internal hash.
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MT-NOTE: the operation must be called under acquired lock.
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*/
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int add_instance(Instance *instance);
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/*
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Remove instance from the internal hash.
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MT-NOTE: the operation must be called under acquired lock.
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*/
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int remove_instance(Instance *instance);
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/*
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Create a new instance and register it in the internal hash.
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MT-NOTE: the operation must be called under acquired lock.
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*/
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int create_instance(const LEX_STRING *instance_name,
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const Named_value_arr *options);
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public:
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Instance_map();
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~Instance_map();
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/*
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Retrieve client state name of the given instance.
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MT-NOTE: the options must be called under acquired locks of the following
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objects:
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- Instance_map;
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- Guardian;
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*/
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const char *get_instance_state_name(Instance *instance);
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public:
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const char *mysqld_path;
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Guardian *guardian;
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private:
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/* loads options from config files */
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int load();
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/* inits instances argv's after all options have been loaded */
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bool complete_initialization();
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private:
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enum { START_HASH_SIZE = 16 };
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pthread_mutex_t LOCK_instance_map;
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HASH hash;
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private:
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friend class Iterator;
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};
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#endif /* INCLUDES_MYSQL_INSTANCE_MANAGER_INSTANCE_MAP_H */
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