parse_manifest.h File Reference

#include "access/xlogdefs.h"
#include "common/checksum_helper.h"
#include "mb/pg_wchar.h"

Include dependency graph for parse_manifest.h:

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Data Structures
struct	JsonManifestParseContext

Typedefs
typedef struct JsonManifestParseContext	JsonManifestParseContext
typedef void(*	json_manifest_perfile_callback) (JsonManifestParseContext *, char *pathname, size_t size, pg_checksum_type checksum_type, int checksum_length, uint8 *checksum_payload)
typedef void(*	json_manifest_perwalrange_callback) (JsonManifestParseContext *, TimeLineID tli, XLogRecPtr start_lsn, XLogRecPtr end_lsn)
typedef void(*	json_manifest_error_callback) (JsonManifestParseContext *, const char *fmt,...) pg_attribute_printf(2
typedef void(*	pg_attribute_noreturn) ()

Functions
void	json_parse_manifest (JsonManifestParseContext *context, char *buffer, size_t size)

Typedef Documentation

json_manifest_error_callback

typedef void(* json_manifest_error_callback) (JsonManifestParseContext *, const char *fmt,...) pg_attribute_printf(2

Definition at line 31 of file parse_manifest.h.

json_manifest_perfile_callback

typedef void(* json_manifest_perfile_callback) (JsonManifestParseContext *, char *pathname, size_t size, pg_checksum_type checksum_type, int checksum_length, uint8 *checksum_payload)

Definition at line 24 of file parse_manifest.h.

json_manifest_perwalrange_callback

typedef void(* json_manifest_perwalrange_callback) (JsonManifestParseContext *, TimeLineID tli, XLogRecPtr start_lsn, XLogRecPtr end_lsn)

Definition at line 28 of file parse_manifest.h.

JsonManifestParseContext

typedef struct JsonManifestParseContext JsonManifestParseContext

Definition at line 1 of file parse_manifest.h.

pg_attribute_noreturn

typedef void(* pg_attribute_noreturn) ()

Definition at line 33 of file parse_manifest.h.

Function Documentation

json_parse_manifest()

void json_parse_manifest	(	JsonManifestParseContext *	context,
		char *	buffer,
		size_t	size
	)

Definition at line 119 of file parse_manifest.c.

{
    JsonLexContext *lex;
    JsonParseErrorType json_error;
    JsonSemAction sem;
    JsonManifestParseState parse;
 
    /* Set up our private parsing context. */
    parse.context = context;
    parse.state = JM_EXPECT_TOPLEVEL_START;
    parse.saw_version_field = false;
 
    /* Create a JSON lexing context. */
    lex = makeJsonLexContextCstringLen(buffer, size, PG_UTF8, true);
 
    /* Set up semantic actions. */
    sem.semstate = &parse;
    sem.object_start = json_manifest_object_start;
    sem.object_end = json_manifest_object_end;
    sem.array_start = json_manifest_array_start;
    sem.array_end = json_manifest_array_end;
    sem.object_field_start = json_manifest_object_field_start;
    sem.object_field_end = NULL;
    sem.array_element_start = NULL;
    sem.array_element_end = NULL;
    sem.scalar = json_manifest_scalar;
 
    /* Run the actual JSON parser. */
    json_error = pg_parse_json(lex, &sem);
    if (json_error != JSON_SUCCESS)
        json_manifest_parse_failure(context, "parsing failed");
    if (parse.state != JM_EXPECT_EOF)
        json_manifest_parse_failure(context, "manifest ended unexpectedly");
 
    /* Verify the manifest checksum. */
    verify_manifest_checksum(&parse, buffer, size);
}

References JsonSemAction::array_element_end, JsonSemAction::array_element_start, JsonSemAction::array_end, JsonSemAction::array_start, JM_EXPECT_EOF, JM_EXPECT_TOPLEVEL_START, json_manifest_array_end(), json_manifest_array_start(), json_manifest_object_end(), json_manifest_object_field_start(), json_manifest_object_start(), json_manifest_parse_failure(), json_manifest_scalar(), JSON_SUCCESS, makeJsonLexContextCstringLen(), JsonSemAction::object_end, JsonSemAction::object_field_end, JsonSemAction::object_field_start, JsonSemAction::object_start, parse(), pg_parse_json(), PG_UTF8, JsonSemAction::scalar, JsonSemAction::semstate, and verify_manifest_checksum().

Referenced by parse_manifest_file().