mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 20:12:31 +01:00
93 lines
2.3 KiB
C++
93 lines
2.3 KiB
C++
#ifndef RPL_PARALLEL_H
|
|
#define RPL_PARALLEL_H
|
|
|
|
#include "log_event.h"
|
|
|
|
|
|
struct rpl_parallel;
|
|
struct rpl_parallel_entry;
|
|
struct rpl_parallel_thread_pool;
|
|
|
|
class Relay_log_info;
|
|
struct rpl_parallel_thread {
|
|
bool delay_start;
|
|
bool running;
|
|
bool stop;
|
|
bool free;
|
|
mysql_mutex_t LOCK_rpl_thread;
|
|
mysql_cond_t COND_rpl_thread;
|
|
struct rpl_parallel_thread *next; /* For free list. */
|
|
struct rpl_parallel_thread_pool *pool;
|
|
THD *thd;
|
|
struct rpl_parallel_entry *current_entry;
|
|
struct queued_event {
|
|
queued_event *next;
|
|
Log_event *ev;
|
|
rpl_group_info *rgi;
|
|
} *event_queue, *last_in_queue;
|
|
};
|
|
|
|
|
|
struct rpl_parallel_thread_pool {
|
|
uint32 count;
|
|
struct rpl_parallel_thread **threads;
|
|
struct rpl_parallel_thread *free_list;
|
|
mysql_mutex_t LOCK_rpl_thread_pool;
|
|
mysql_cond_t COND_rpl_thread_pool;
|
|
bool changing;
|
|
bool inited;
|
|
|
|
rpl_parallel_thread_pool();
|
|
int init(uint32 size);
|
|
void destroy();
|
|
struct rpl_parallel_thread *get_thread(rpl_parallel_entry *entry);
|
|
};
|
|
|
|
|
|
struct rpl_parallel_entry {
|
|
uint32 domain_id;
|
|
uint32 last_server_id;
|
|
uint64 last_seq_no;
|
|
uint64 last_commit_id;
|
|
bool active;
|
|
rpl_parallel_thread *rpl_thread;
|
|
/*
|
|
The sub_id of the last transaction to commit within this domain_id.
|
|
Must be accessed under LOCK_parallel_entry protection.
|
|
*/
|
|
uint64 last_committed_sub_id;
|
|
mysql_mutex_t LOCK_parallel_entry;
|
|
mysql_cond_t COND_parallel_entry;
|
|
uint64 current_sub_id;
|
|
rpl_group_info *current_group_info;
|
|
/*
|
|
The sub_id of the last event group in the previous batch of group-committed
|
|
transactions.
|
|
|
|
When we spawn parallel worker threads for the next group-committed batch,
|
|
they first need to wait for this sub_id to be committed before it is safe
|
|
to start executing them.
|
|
*/
|
|
uint64 prev_groupcommit_sub_id;
|
|
};
|
|
struct rpl_parallel {
|
|
HASH domain_hash;
|
|
rpl_parallel_entry *current;
|
|
|
|
rpl_parallel();
|
|
~rpl_parallel();
|
|
void reset();
|
|
rpl_parallel_entry *find(uint32 domain_id);
|
|
void wait_for_done();
|
|
bool do_event(rpl_group_info *serial_rgi, Log_event *ev);
|
|
};
|
|
|
|
|
|
extern struct rpl_parallel_thread_pool global_rpl_thread_pool;
|
|
|
|
|
|
extern int rpl_parallel_change_thread_count(rpl_parallel_thread_pool *pool,
|
|
uint32 new_count,
|
|
bool skip_check= false);
|
|
|
|
#endif /* RPL_PARALLEL_H */
|