79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
/* -------------------------------------------------------------------------
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*
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* worker_internal.h
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* Internal headers shared by logical replication workers.
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*
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* Portions Copyright (c) 2010-2016, PostgreSQL Global Development Group
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*
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* src/include/replication/worker_internal.h
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*
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* -------------------------------------------------------------------------
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*/
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#ifndef WORKER_INTERNAL_H
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#define WORKER_INTERNAL_H
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#include "catalog/pg_subscription.h"
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#include "storage/lock/lock.h"
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typedef struct LogicalRepWorker
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{
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/* Increased everytime the slot is tabken by new worker */
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uint16 generation;
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/* Pointer to proc array. NULL if not running. */
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PGPROC *proc;
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/* Database id to connect to. */
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Oid dbid;
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Oid userid;
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/* Subscription id for the worker. */
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Oid subid;
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/* Used for initial table synchronization. */
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Oid relid;
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char relstate;
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XLogRecPtr relstate_lsn;
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CommitSeqNo relcsn;
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slock_t relmutex;
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TimestampTz workerLaunchTime;
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/* Stats. */
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XLogRecPtr last_lsn;
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TimestampTz last_send_time;
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TimestampTz last_recv_time;
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XLogRecPtr reply_lsn;
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TimestampTz reply_time;
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} LogicalRepWorker;
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typedef struct ApplyLauncherShmStruct {
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LogicalRepWorker *startingWorker;
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ThreadId applyLauncherPid;
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/* last parameter */
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LogicalRepWorker workers[FLEXIBLE_ARRAY_MEMBER];
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} ApplyLauncherShmStruct;
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extern void logicalrep_worker_attach();
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extern LogicalRepWorker *logicalrep_worker_find(Oid subid, Oid relid, bool only_running);
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extern List *logicalrep_workers_find(Oid subid, bool only_running);
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extern void logicalrep_worker_launch(Oid dbid, Oid subid, const char *subname, Oid userid, Oid relid);
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extern void logicalrep_worker_stop(Oid subid, Oid relid);
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extern void logicalrep_worker_wakeup(Oid subid, Oid relid);
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extern void logicalrep_worker_wakeup_ptr(LogicalRepWorker *worker);
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extern int logicalrep_sync_worker_count(Oid subid);
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extern void ReplicationOriginNameForTablesync(Oid suboid, Oid relid, char *originname, int szorgname);
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extern char* DefListToString(const List *defList);
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extern List* ConninfoToDefList(const char *conn);
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extern char *LogicalRepSyncTableStart(XLogRecPtr *origin_startpos);
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void process_syncing_tables(XLogRecPtr current_lsn);
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void invalidate_syncing_table_states(Datum arg, int cacheid, uint32 hashvalue);
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#define AM_TABLESYNC_WORKER (OidIsValid(t_thrd.applyworker_cxt.curWorker->relid))
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#endif /* WORKER_INTERNAL_H */
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