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Move all ddl log code to ddl_log.cc and ddl_log.h

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Part of prepration for: MDEV-17567 Atomic DDL

No notable code changes except moving code around
This commit is contained in:
Monty
2020-10-02 15:59:06 +03:00
committed by Sergei Golubchik
parent a28ea028af
commit 02b6cef45e
10 changed files with 1278 additions and 1219 deletions
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86
sql/sql_table.h
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@ -38,80 +38,6 @@ typedef struct st_key_cache KEY_CACHE;
typedef struct st_lock_param_type ALTER_PARTITION_PARAM_TYPE;
typedef struct st_order ORDER;
enum ddl_log_entry_code
{
/*
DDL_LOG_EXECUTE_CODE:
This is a code that indicates that this is a log entry to
be executed, from this entry a linked list of log entries
can be found and executed.
DDL_LOG_ENTRY_CODE:
An entry to be executed in a linked list from an execute log
entry.
DDL_IGNORE_LOG_ENTRY_CODE:
An entry that is to be ignored
*/
DDL_LOG_EXECUTE_CODE = 'e',
DDL_LOG_ENTRY_CODE = 'l',
DDL_IGNORE_LOG_ENTRY_CODE = 'i'
};
enum ddl_log_action_code
{
/*
The type of action that a DDL_LOG_ENTRY_CODE entry is to
perform.
DDL_LOG_DELETE_ACTION:
Delete an entity
DDL_LOG_RENAME_ACTION:
Rename an entity
DDL_LOG_REPLACE_ACTION:
Rename an entity after removing the previous entry with the
new name, that is replace this entry.
DDL_LOG_EXCHANGE_ACTION:
Exchange two entities by renaming them a -> tmp, b -> a, tmp -> b.
*/
DDL_LOG_DELETE_ACTION = 'd',
DDL_LOG_RENAME_ACTION = 'r',
DDL_LOG_REPLACE_ACTION = 's',
DDL_LOG_EXCHANGE_ACTION = 'e'
};
enum enum_ddl_log_exchange_phase {
EXCH_PHASE_NAME_TO_TEMP= 0,
EXCH_PHASE_FROM_TO_NAME= 1,
EXCH_PHASE_TEMP_TO_FROM= 2
};
typedef struct st_ddl_log_entry
{
const char *name;
const char *from_name;
const char *handler_name;
const char *tmp_name;
uint next_entry;
uint entry_pos;
enum ddl_log_entry_code entry_type;
enum ddl_log_action_code action_type;
/*
Most actions have only one phase. REPLACE does however have two
phases. The first phase removes the file with the new name if
there was one there before and the second phase renames the
old name to the new name.
*/
char phase;
} DDL_LOG_ENTRY;
typedef struct st_ddl_log_memory_entry
{
uint entry_pos;
struct st_ddl_log_memory_entry *next_log_entry;
struct st_ddl_log_memory_entry *prev_log_entry;
struct st_ddl_log_memory_entry *next_active_log_entry;
} DDL_LOG_MEMORY_ENTRY;
enum enum_explain_filename_mode
{
EXPLAIN_ALL_VERBOSE= 0,
@ -264,17 +190,6 @@ int write_bin_log(THD *thd, bool clear_error,
bool is_trans= FALSE);
int write_bin_log_with_if_exists(THD *thd, bool clear_error,
bool is_trans, bool add_if_exists);
bool write_ddl_log_entry(DDL_LOG_ENTRY *ddl_log_entry,
DDL_LOG_MEMORY_ENTRY **active_entry);
bool write_execute_ddl_log_entry(uint first_entry,
bool complete,
DDL_LOG_MEMORY_ENTRY **active_entry);
bool deactivate_ddl_log_entry(uint entry_no);
void release_ddl_log_memory_entry(DDL_LOG_MEMORY_ENTRY *log_entry);
bool sync_ddl_log();
void release_ddl_log();
void execute_ddl_log_recovery();
bool execute_ddl_log_entry(THD *thd, uint first_entry);
template<typename T> class List;
void promote_first_timestamp_column(List<Create_field> *column_definitions);
@ -287,7 +202,6 @@ uint explain_filename(THD* thd, const char *from, char *to, uint to_length,
extern MYSQL_PLUGIN_IMPORT const LEX_CSTRING primary_key_name;
extern mysql_mutex_t LOCK_gdl;
bool check_engine(THD *, const char *, const char *, HA_CREATE_INFO *);