parse_manifest.h

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/*-------------------------------------------------------------------------
 *
 * parse_manifest.h
 *    Parse a backup manifest in JSON format.
 *
 * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/common/parse_manifest.h
 *
 *-------------------------------------------------------------------------
 */
 
#ifndef PARSE_MANIFEST_H
#define PARSE_MANIFEST_H
 
#include "access/xlogdefs.h"
#include "common/checksum_helper.h"
#include "mb/pg_wchar.h"
 
struct JsonManifestParseContext;
typedef struct JsonManifestParseContext JsonManifestParseContext;
typedef struct JsonManifestParseIncrementalState JsonManifestParseIncrementalState;
 
typedef void (*json_manifest_version_callback) (JsonManifestParseContext *,
                                                int manifest_version);
typedef void (*json_manifest_system_identifier_callback) (JsonManifestParseContext *,
                                                          uint64 manifest_system_identifier);
typedef void (*json_manifest_per_file_callback) (JsonManifestParseContext *,
                                                 char *pathname,
                                                 size_t size, pg_checksum_type checksum_type,
                                                 int checksum_length, uint8 *checksum_payload);
typedef void (*json_manifest_per_wal_range_callback) (JsonManifestParseContext *,
                                                      TimeLineID tli,
                                                      XLogRecPtr start_lsn, XLogRecPtr end_lsn);
typedef void (*json_manifest_error_callback) (JsonManifestParseContext *,
                                              const char *fmt,...) pg_attribute_printf(2, 3)
            pg_attribute_noreturn();
 
struct JsonManifestParseContext
{
    void       *private_data;
    json_manifest_version_callback version_cb;
    json_manifest_system_identifier_callback system_identifier_cb;
    json_manifest_per_file_callback per_file_cb;
    json_manifest_per_wal_range_callback per_wal_range_cb;
    json_manifest_error_callback error_cb;
};
 
extern void json_parse_manifest(JsonManifestParseContext *context,
                                char *buffer, size_t size);
extern JsonManifestParseIncrementalState *json_parse_manifest_incremental_init(JsonManifestParseContext *context);
extern void json_parse_manifest_incremental_chunk(
                                                  JsonManifestParseIncrementalState *incstate, char *chunk, int size,
                                                  bool is_last);
extern void json_parse_manifest_incremental_shutdown(JsonManifestParseIncrementalState *incstate);
 
#endif