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/*-------------------------------------------------------------------------
*
* basebackup_incremental.h
* API for incremental backup support
*
* Portions Copyright (c) 2010-2025, PostgreSQL Global Development Group
*
* src/include/backup/basebackup_incremental.h
*
*-------------------------------------------------------------------------
*/
#ifndef BASEBACKUP_INCREMENTAL_H
#define BASEBACKUP_INCREMENTAL_H
#include "access/xlogbackup.h"
#include "common/relpath.h"
#include "storage/block.h"
#include "utils/palloc.h"
#define INCREMENTAL_MAGIC 0xd3ae1f0d
typedef enum
{
BACK_UP_FILE_FULLY,
BACK_UP_FILE_INCREMENTALLY
} FileBackupMethod;
struct IncrementalBackupInfo;
typedef struct IncrementalBackupInfo IncrementalBackupInfo;
extern IncrementalBackupInfo *CreateIncrementalBackupInfo(MemoryContext);
extern void AppendIncrementalManifestData(IncrementalBackupInfo *ib,
const char *data,
int len);
extern void FinalizeIncrementalManifest(IncrementalBackupInfo *ib);
extern void PrepareForIncrementalBackup(IncrementalBackupInfo *ib,
BackupState *backup_state);
extern char *GetIncrementalFilePath(Oid dboid, Oid spcoid,
RelFileNumber relfilenumber,
ForkNumber forknum, unsigned segno);
extern FileBackupMethod GetFileBackupMethod(IncrementalBackupInfo *ib,
const char *path,
Oid dboid, Oid spcoid,
RelFileNumber relfilenumber,
ForkNumber forknum,
unsigned segno, size_t size,
unsigned *num_blocks_required,
BlockNumber *relative_block_numbers,
unsigned *truncation_block_length);
extern size_t GetIncrementalFileSize(unsigned num_blocks_required);
extern size_t GetIncrementalHeaderSize(unsigned num_blocks_required);
#endif
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