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d04eac1148
Add necessary include files for things used in the header. (signal.h needed for sig_atomic_t.)
89 lines
2.5 KiB
C
89 lines
2.5 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) 2016-2017, 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 <signal.h>
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#include "access/xlogdefs.h"
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#include "catalog/pg_subscription.h"
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#include "datatype/timestamp.h"
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#include "storage/lock.h"
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typedef struct LogicalRepWorker
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{
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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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/* User to use for connection (will be same as owner of subscription). */
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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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slock_t relmutex;
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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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/* Memory context for cached variables in apply worker. */
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extern MemoryContext ApplyCacheContext;
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/* libpqreceiver connection */
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extern struct WalReceiverConn *wrconn;
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/* Worker and subscription objects. */
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extern Subscription *MySubscription;
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extern LogicalRepWorker *MyLogicalRepWorker;
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extern bool in_remote_transaction;
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extern volatile sig_atomic_t got_SIGHUP;
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extern volatile sig_atomic_t got_SIGTERM;
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extern void logicalrep_worker_attach(int slot);
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extern LogicalRepWorker *logicalrep_worker_find(Oid subid, Oid relid,
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bool only_running);
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extern void logicalrep_worker_launch(Oid dbid, Oid subid, const char *subname,
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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 logicalrep_worker_sighup(SIGNAL_ARGS);
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extern void logicalrep_worker_sigterm(SIGNAL_ARGS);
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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,
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uint32 hashvalue);
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static inline bool
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am_tablesync_worker(void)
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{
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return OidIsValid(MyLogicalRepWorker->relid);
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}
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#endif /* WORKER_INTERNAL_H */
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