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Code Issues Releases Activity

Remove multi-versioning of XLOG_PAGE_MAGIC

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This is a pain to maintain, and simplifies the code a bit.
This commit is contained in:
Michael Paquier 2013-12-12 21:28:33 +09:00
parent 8a34a18ea1
commit 200d1fde63
1 changed files with 1 additions and 36 deletions
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37
xlog.c
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@ -21,16 +21,6 @@ typedef struct MemoryContextData *MemoryContext;
#include "access/xlog_internal.h"
#define XLOG_PAGE_MAGIC_v80 0xD05C /* 8.0 */
#define XLOG_PAGE_MAGIC_v81 0xD05D /* 8.1 */
#define XLOG_PAGE_MAGIC_v82 0xD05E /* 8.2 */
#define XLOG_PAGE_MAGIC_v83 0xD062 /* 8.3 */
#define XLOG_PAGE_MAGIC_v84 0xD063 /* 8.4 */
#define XLOG_PAGE_MAGIC_v90 0xD064 /* 9.0 */
#define XLOG_PAGE_MAGIC_v91 0xD066 /* 9.1 */
#define XLOG_PAGE_MAGIC_v92 0xD071 /* 9.2 */
#define XLOG_PAGE_MAGIC_v93 0xD075 /* 9.2 */
/*
* XLogLongPageHeaderData is modified in 8.3, but the layout is compatible
* except xlp_xlog_blcksz.
@ -51,7 +41,6 @@ xlog_is_complete_wal(const pgFile *file, int server_version)
{
FILE *fp;
XLogPage page;
uint16 xlog_page_magic;
fp = fopen(file->path, "r");
if (!fp)
@ -63,32 +52,8 @@ xlog_is_complete_wal(const pgFile *file, int server_version)
}
fclose(fp);
/* xlog_page_magic from server version */
if (server_version < 80000)
return false; /* never happen */
else if (server_version < 80100)
xlog_page_magic = XLOG_PAGE_MAGIC_v80;
else if (server_version < 80200)
xlog_page_magic = XLOG_PAGE_MAGIC_v81;
else if (server_version < 80300)
xlog_page_magic = XLOG_PAGE_MAGIC_v82;
else if (server_version < 80400)
xlog_page_magic = XLOG_PAGE_MAGIC_v83;
else if (server_version < 90000)
xlog_page_magic = XLOG_PAGE_MAGIC_v84;
else if (server_version < 90100)
xlog_page_magic = XLOG_PAGE_MAGIC_v90;
else if (server_version < 90200)
xlog_page_magic = XLOG_PAGE_MAGIC_v91;
else if (server_version < 90300)
xlog_page_magic = XLOG_PAGE_MAGIC_v92;
else if (server_version < 90400)
xlog_page_magic = XLOG_PAGE_MAGIC_v93;
else
return false; /* not supported */
/* check header */
if (page.header.xlp_magic != xlog_page_magic)
if (page.header.xlp_magic != XLOG_PAGE_MAGIC)
return false;
if ((page.header.xlp_info & ~XLP_ALL_FLAGS) != 0)
return false;