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611806cd72
Since C99, there can be a trailing comma after the last value in an enum definition. A lot of new code has been introducing this style on the fly. Some new patches are now taking an inconsistent approach to this. Some add the last comma on the fly if they add a new last value, some are trying to preserve the existing style in each place, some are even dropping the last comma if there was one. We could nudge this all in a consistent direction if we just add the trailing commas everywhere once. I omitted a few places where there was a fixed "last" value that will always stay last. I also skipped the header files of libpq and ecpg, in case people want to use those with older compilers. There were also a small number of cases where the enum type wasn't used anywhere (but the enum values were), which ended up confusing pgindent a bit, so I left those alone. Discussion: https://www.postgresql.org/message-id/flat/386f8c45-c8ac-4681-8add-e3b0852c1620%40eisentraut.org
95 lines
3.0 KiB
C
95 lines
3.0 KiB
C
/*-------------------------------------------------------------------------
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*
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* snapbuild.h
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* Exports from replication/logical/snapbuild.c.
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*
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* Copyright (c) 2012-2023, PostgreSQL Global Development Group
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*
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* src/include/replication/snapbuild.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef SNAPBUILD_H
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#define SNAPBUILD_H
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#include "access/xlogdefs.h"
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#include "utils/snapmgr.h"
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typedef enum
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{
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/*
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* Initial state, we can't do much yet.
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*/
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SNAPBUILD_START = -1,
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/*
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* Collecting committed transactions, to build the initial catalog
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* snapshot.
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*/
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SNAPBUILD_BUILDING_SNAPSHOT = 0,
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/*
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* We have collected enough information to decode tuples in transactions
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* that started after this.
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*
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* Once we reached this we start to collect changes. We cannot apply them
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* yet, because they might be based on transactions that were still
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* running when FULL_SNAPSHOT was reached.
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*/
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SNAPBUILD_FULL_SNAPSHOT = 1,
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/*
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* Found a point after SNAPBUILD_FULL_SNAPSHOT where all transactions that
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* were running at that point finished. Till we reach that we hold off
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* calling any commit callbacks.
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*/
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SNAPBUILD_CONSISTENT = 2,
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} SnapBuildState;
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/* forward declare so we don't have to expose the struct to the public */
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struct SnapBuild;
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typedef struct SnapBuild SnapBuild;
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/* forward declare so we don't have to include reorderbuffer.h */
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struct ReorderBuffer;
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/* forward declare so we don't have to include heapam_xlog.h */
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struct xl_heap_new_cid;
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struct xl_running_xacts;
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extern void CheckPointSnapBuild(void);
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extern SnapBuild *AllocateSnapshotBuilder(struct ReorderBuffer *reorder,
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TransactionId xmin_horizon, XLogRecPtr start_lsn,
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bool need_full_snapshot,
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XLogRecPtr two_phase_at);
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extern void FreeSnapshotBuilder(SnapBuild *builder);
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extern void SnapBuildSnapDecRefcount(Snapshot snap);
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extern Snapshot SnapBuildInitialSnapshot(SnapBuild *builder);
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extern const char *SnapBuildExportSnapshot(SnapBuild *builder);
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extern void SnapBuildClearExportedSnapshot(void);
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extern void SnapBuildResetExportedSnapshotState(void);
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extern SnapBuildState SnapBuildCurrentState(SnapBuild *builder);
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extern Snapshot SnapBuildGetOrBuildSnapshot(SnapBuild *builder);
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extern bool SnapBuildXactNeedsSkip(SnapBuild *builder, XLogRecPtr ptr);
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extern XLogRecPtr SnapBuildGetTwoPhaseAt(SnapBuild *builder);
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extern void SnapBuildSetTwoPhaseAt(SnapBuild *builder, XLogRecPtr ptr);
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extern void SnapBuildCommitTxn(SnapBuild *builder, XLogRecPtr lsn,
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TransactionId xid, int nsubxacts,
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TransactionId *subxacts, uint32 xinfo);
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extern bool SnapBuildProcessChange(SnapBuild *builder, TransactionId xid,
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XLogRecPtr lsn);
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extern void SnapBuildProcessNewCid(SnapBuild *builder, TransactionId xid,
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XLogRecPtr lsn,
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struct xl_heap_new_cid *xlrec);
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extern void SnapBuildProcessRunningXacts(SnapBuild *builder, XLogRecPtr lsn,
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struct xl_running_xacts *running);
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extern void SnapBuildSerializationPoint(SnapBuild *builder, XLogRecPtr lsn);
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#endif /* SNAPBUILD_H */
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