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aafc05de1b
Introduce new postmaster_child_launch() function that deals with the differences in EXEC_BACKEND mode. Refactor the mechanism of passing information from the parent to child process. Instead of using different command-line arguments when launching the child process in EXEC_BACKEND mode, pass a variable-length blob of startup data along with all the global variables. The contents of that blob depend on the kind of child process being launched. In !EXEC_BACKEND mode, we use the same blob, but it's simply inherited from the parent to child process. Reviewed-by: Tristan Partin, Andres Freund Discussion: https://www.postgresql.org/message-id/7a59b073-5b5b-151e-7ed3-8b01ff7ce9ef@iki.fi
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/*-------------------------------------------------------------------------
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*
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* slotsync.h
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* Exports for slot synchronization.
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*
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* Portions Copyright (c) 2016-2024, PostgreSQL Global Development Group
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*
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* src/include/replication/slotsync.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef SLOTSYNC_H
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#define SLOTSYNC_H
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#include "replication/walreceiver.h"
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extern PGDLLIMPORT bool sync_replication_slots;
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/*
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* GUCs needed by slot sync worker to connect to the primary
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* server and carry on with slots synchronization.
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*/
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extern PGDLLIMPORT char *PrimaryConnInfo;
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extern PGDLLIMPORT char *PrimarySlotName;
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extern char *CheckAndGetDbnameFromConninfo(void);
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extern bool ValidateSlotSyncParams(int elevel);
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extern void ReplSlotSyncWorkerMain(char *startup_data, size_t startup_data_len) pg_attribute_noreturn();
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extern int StartSlotSyncWorker(void);
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extern void ShutDownSlotSync(void);
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extern bool SlotSyncWorkerCanRestart(void);
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extern bool IsSyncingReplicationSlots(void);
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extern Size SlotSyncShmemSize(void);
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extern void SlotSyncShmemInit(void);
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extern void SyncReplicationSlots(WalReceiverConn *wrconn);
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#endif /* SLOTSYNC_H */
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