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Diffstat (limited to 'contrib/pg_resetxlog/pg_resetxlog.c')
-rw-r--r--contrib/pg_resetxlog/pg_resetxlog.c315
1 files changed, 162 insertions, 153 deletions
diff --git a/contrib/pg_resetxlog/pg_resetxlog.c b/contrib/pg_resetxlog/pg_resetxlog.c
index 5137cddd913..848bbb92674 100644
--- a/contrib/pg_resetxlog/pg_resetxlog.c
+++ b/contrib/pg_resetxlog/pg_resetxlog.c
@@ -5,15 +5,15 @@
* Can also rebuild pg_control if needed.
*
* The theory of operation is fairly simple:
- * 1. Read the existing pg_control (which will include the last
+ * 1. Read the existing pg_control (which will include the last
* checkpoint record). If it is an old format then update to
* current format.
* 2. If pg_control is corrupt, attempt to intuit reasonable values,
* by scanning the old xlog if necessary.
* 3. Modify pg_control to reflect a "shutdown" state with a checkpoint
- * record at the start of xlog.
+ * record at the start of xlog.
* 4. Flush the existing xlog files and write a new segment with
- * just a checkpoint record in it. The new segment is positioned
+ * just a checkpoint record in it. The new segment is positioned
* just past the end of the old xlog, so that existing LSNs in
* data pages will appear to be "in the past".
* This is all pretty straightforward except for the intuition part of
@@ -23,7 +23,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Header: /cvsroot/pgsql/contrib/pg_resetxlog/Attic/pg_resetxlog.c,v 1.2 2001/03/16 05:08:39 tgl Exp $
+ * $Header: /cvsroot/pgsql/contrib/pg_resetxlog/Attic/pg_resetxlog.c,v 1.3 2001/03/22 03:59:10 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -63,7 +63,7 @@
* Compute ID and segment from an XLogRecPtr.
*
* For XLByteToSeg, do the computation at face value. For XLByteToPrevSeg,
- * a boundary byte is taken to be in the previous segment. This is suitable
+ * a boundary byte is taken to be in the previous segment. This is suitable
* for deciding which segment to write given a pointer to a record end,
* for example.
*/
@@ -109,8 +109,9 @@ static char *DataDir; /* locations of important stuff */
static char XLogDir[MAXPGPATH];
static char ControlFilePath[MAXPGPATH];
-static ControlFileData ControlFile; /* pg_control values */
-static uint32 newXlogId, newXlogSeg; /* ID/Segment of new XLOG segment */
+static ControlFileData ControlFile; /* pg_control values */
+static uint32 newXlogId,
+ newXlogSeg; /* ID/Segment of new XLOG segment */
static bool guessed = false; /* T if we had to guess at any values */
@@ -139,17 +140,18 @@ XLogFileOpen(uint32 log, uint32 seg)
static bool
ReadControlFile(void)
{
- int fd;
- int len;
- char *buffer;
- crc64 crc;
+ int fd;
+ int len;
+ char *buffer;
+ crc64 crc;
if ((fd = open(ControlFilePath, O_RDONLY)) < 0)
{
+
/*
- * If pg_control is not there at all, or we can't read it,
- * the odds are we've been handed a bad DataDir path, so give up.
- * User can do "touch pg_control" to force us to proceed.
+ * If pg_control is not there at all, or we can't read it, the
+ * odds are we've been handed a bad DataDir path, so give up. User
+ * can do "touch pg_control" to force us to proceed.
*/
perror("Failed to open $PGDATA/global/pg_control for reading");
if (errno == ENOENT)
@@ -175,7 +177,7 @@ ReadControlFile(void)
{
/* Seems to be current version --- check the CRC. */
INIT_CRC64(crc);
- COMP_CRC64(crc,
+ COMP_CRC64(crc,
buffer + sizeof(crc64),
sizeof(ControlFileData) - sizeof(crc64));
FIN_CRC64(crc);
@@ -193,6 +195,7 @@ ReadControlFile(void)
guessed = true;
return true;
}
+
/*
* Maybe it's a 7.1beta pg_control.
*/
@@ -217,75 +220,75 @@ ReadControlFile(void)
typedef struct crc64V0
{
- uint32 crc1;
- uint32 crc2;
-} crc64V0;
+ uint32 crc1;
+ uint32 crc2;
+} crc64V0;
static uint32 crc_tableV0[] = {
-0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
-0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
-0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
-0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
-0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
-0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
-0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
-0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
-0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
-0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
-0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
-0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
-0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
-0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
-0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
-0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
-0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
-0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
-0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
-0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
-0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
-0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
-0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
-0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
-0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
-0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
-0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
-0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
-0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
-0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
-0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
-0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
-0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
-0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
-0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
-0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
-0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
-0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
-0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
-0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
-0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
-0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
-0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
+ 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
+ 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
+ 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
+ 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
+ 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
+ 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
+ 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
+ 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
+ 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
+ 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
+ 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
+ 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
+ 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
+ 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
+ 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
+ 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
+ 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
+ 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
+ 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
+ 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+ 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
+ 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
+ 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
+ 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
+ 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
+ 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
+ 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
+ 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
+ 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
+ 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
+ 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
+ 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
+ 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
+ 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
+ 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
+ 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
+ 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
+ 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
+ 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
+ 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+ 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
+ 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
+ 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
};
#define INIT_CRC64V0(crc) ((crc).crc1 = 0xffffffff, (crc).crc2 = 0xffffffff)
#define FIN_CRC64V0(crc) ((crc).crc1 ^= 0xffffffff, (crc).crc2 ^= 0xffffffff)
#define COMP_CRC64V0(crc, data, len) \
{\
- uint32 __c1 = (crc).crc1;\
- uint32 __c2 = (crc).crc2;\
- char *__data = (char *) (data);\
- uint32 __len = (len);\
+ uint32 __c1 = (crc).crc1;\
+ uint32 __c2 = (crc).crc2;\
+ char *__data = (char *) (data);\
+ uint32 __len = (len);\
\
- while (__len >= 2)\
- {\
- __c1 = crc_tableV0[(__c1 ^ *__data++) & 0xff] ^ (__c1 >> 8);\
- __c2 = crc_tableV0[(__c2 ^ *__data++) & 0xff] ^ (__c2 >> 8);\
- __len -= 2;\
- }\
- if (__len > 0)\
- __c1 = crc_tableV0[(__c1 ^ *__data++) & 0xff] ^ (__c1 >> 8);\
- (crc).crc1 = __c1;\
- (crc).crc2 = __c2;\
+ while (__len >= 2)\
+ {\
+ __c1 = crc_tableV0[(__c1 ^ *__data++) & 0xff] ^ (__c1 >> 8);\
+ __c2 = crc_tableV0[(__c2 ^ *__data++) & 0xff] ^ (__c2 >> 8);\
+ __len -= 2;\
+ }\
+ if (__len > 0)\
+ __c1 = crc_tableV0[(__c1 ^ *__data++) & 0xff] ^ (__c1 >> 8);\
+ (crc).crc1 = __c1;\
+ (crc).crc2 = __c2;\
}
#define EQ_CRC64V0(c1,c2) ((c1).crc1 == (c2).crc1 && (c1).crc2 == (c2).crc2)
@@ -295,51 +298,51 @@ static uint32 crc_tableV0[] = {
typedef struct ControlFileDataV0
{
- crc64V0 crc;
- uint32 logId; /* current log file id */
- uint32 logSeg; /* current log file segment (1-based) */
- XLogRecPtr checkPoint; /* last check point record ptr */
- time_t time; /* time stamp of last modification */
- DBState state; /* see enum above */
- uint32 blcksz; /* block size for this DB */
- uint32 relseg_size; /* blocks per segment of large relation */
- uint32 catalog_version_no; /* internal version number */
- char lc_collate[LOCALE_NAME_BUFLEN_V0];
- char lc_ctype[LOCALE_NAME_BUFLEN_V0];
- char archdir[MAXPGPATH]; /* where to move offline log files */
-} ControlFileDataV0;
+ crc64V0 crc;
+ uint32 logId; /* current log file id */
+ uint32 logSeg; /* current log file segment (1-based) */
+ XLogRecPtr checkPoint; /* last check point record ptr */
+ time_t time; /* time stamp of last modification */
+ DBState state; /* see enum above */
+ uint32 blcksz; /* block size for this DB */
+ uint32 relseg_size; /* blocks per segment of large relation */
+ uint32 catalog_version_no; /* internal version number */
+ char lc_collate[LOCALE_NAME_BUFLEN_V0];
+ char lc_ctype[LOCALE_NAME_BUFLEN_V0];
+ char archdir[MAXPGPATH]; /* where to move offline log files */
+} ControlFileDataV0;
typedef struct CheckPointV0
{
- XLogRecPtr redo; /* next RecPtr available when we */
- /* began to create CheckPoint */
- /* (i.e. REDO start point) */
- XLogRecPtr undo; /* first record of oldest in-progress */
- /* transaction when we started */
- /* (i.e. UNDO end point) */
- StartUpID ThisStartUpID;
- TransactionId nextXid;
- Oid nextOid;
- bool Shutdown;
-} CheckPointV0;
+ XLogRecPtr redo; /* next RecPtr available when we */
+ /* began to create CheckPoint */
+ /* (i.e. REDO start point) */
+ XLogRecPtr undo; /* first record of oldest in-progress */
+ /* transaction when we started */
+ /* (i.e. UNDO end point) */
+ StartUpID ThisStartUpID;
+ TransactionId nextXid;
+ Oid nextOid;
+ bool Shutdown;
+} CheckPointV0;
typedef struct XLogRecordV0
{
- crc64V0 xl_crc;
- XLogRecPtr xl_prev; /* ptr to previous record in log */
- XLogRecPtr xl_xact_prev; /* ptr to previous record of this xact */
- TransactionId xl_xid; /* xact id */
- uint16 xl_len; /* total len of record *data* */
- uint8 xl_info;
- RmgrId xl_rmid; /* resource manager inserted this record */
-} XLogRecordV0;
+ crc64V0 xl_crc;
+ XLogRecPtr xl_prev; /* ptr to previous record in log */
+ XLogRecPtr xl_xact_prev; /* ptr to previous record of this xact */
+ TransactionId xl_xid; /* xact id */
+ uint16 xl_len; /* total len of record *data* */
+ uint8 xl_info;
+ RmgrId xl_rmid; /* resource manager inserted this record */
+} XLogRecordV0;
#define SizeOfXLogRecordV0 DOUBLEALIGN(sizeof(XLogRecordV0))
typedef struct XLogContRecordV0
{
- uint16 xl_len; /* len of data left */
-} XLogContRecordV0;
+ uint16 xl_len; /* len of data left */
+} XLogContRecordV0;
#define SizeOfXLogContRecordV0 DOUBLEALIGN(sizeof(XLogContRecordV0))
@@ -347,16 +350,16 @@ typedef struct XLogContRecordV0
typedef struct XLogPageHeaderDataV0
{
- uint32 xlp_magic;
- uint16 xlp_info;
-} XLogPageHeaderDataV0;
+ uint32 xlp_magic;
+ uint16 xlp_info;
+} XLogPageHeaderDataV0;
#define SizeOfXLogPHDV0 DOUBLEALIGN(sizeof(XLogPageHeaderDataV0))
typedef XLogPageHeaderDataV0 *XLogPageHeaderV0;
-static bool RecordIsValidV0(XLogRecordV0 *record);
+static bool RecordIsValidV0(XLogRecordV0 * record);
static XLogRecordV0 *ReadRecordV0(XLogRecPtr *RecPtr, char *buffer);
static bool ValidXLOGHeaderV0(XLogPageHeaderV0 hdr);
@@ -376,7 +379,7 @@ CheckControlVersion0(char *buffer, int len)
return false;
/* Check CRC the version-0 way. */
INIT_CRC64V0(crc);
- COMP_CRC64V0(crc,
+ COMP_CRC64V0(crc,
buffer + sizeof(crc64V0),
sizeof(ControlFileDataV0) - sizeof(crc64V0));
FIN_CRC64V0(crc);
@@ -409,12 +412,13 @@ CheckControlVersion0(char *buffer, int len)
(char *) malloc(_INTL_MAXLOGRECSZ));
if (record == NULL)
{
+
/*
* We have to guess at the checkpoint contents.
*/
guessed = true;
ControlFile.checkPointCopy.ThisStartUpID = 0;
- ControlFile.checkPointCopy.nextXid = (TransactionId) 514; /* XXX */
+ ControlFile.checkPointCopy.nextXid = (TransactionId) 514; /* XXX */
ControlFile.checkPointCopy.nextOid = BootstrapObjectIdData;
return true;
}
@@ -435,26 +439,26 @@ CheckControlVersion0(char *buffer, int len)
* We assume all of the record has been read into memory at *record.
*/
static bool
-RecordIsValidV0(XLogRecordV0 *record)
+RecordIsValidV0(XLogRecordV0 * record)
{
crc64V0 crc;
uint32 len = record->xl_len;
/*
* NB: this code is not right for V0 records containing backup blocks,
- * but for now it's only going to be applied to checkpoint records,
- * so I'm not going to worry about it...
+ * but for now it's only going to be applied to checkpoint records, so
+ * I'm not going to worry about it...
*/
INIT_CRC64V0(crc);
COMP_CRC64V0(crc, XLogRecGetData(record), len);
- COMP_CRC64V0(crc, (char*) record + sizeof(crc64V0),
+ COMP_CRC64V0(crc, (char *) record + sizeof(crc64V0),
SizeOfXLogRecordV0 - sizeof(crc64V0));
FIN_CRC64V0(crc);
if (!EQ_CRC64V0(record->xl_crc, crc))
return false;
- return(true);
+ return (true);
}
/*
@@ -489,7 +493,7 @@ ReadRecordV0(XLogRecPtr *RecPtr, char *buffer)
readFile = XLogFileOpen(readId, readSeg);
if (readFile < 0)
goto next_record_is_invalid;
- readOff = (uint32) (-1); /* force read to occur below */
+ readOff = (uint32) (-1);/* force read to occur below */
}
targetPageOff = ((RecPtr->xrecoff % XLogSegSize) / BLCKSZ) * BLCKSZ;
@@ -510,10 +514,13 @@ ReadRecordV0(XLogRecPtr *RecPtr, char *buffer)
if (record->xl_len == 0)
goto next_record_is_invalid;
+
/*
- * Compute total length of record including any appended backup blocks.
+ * Compute total length of record including any appended backup
+ * blocks.
*/
total_len = SizeOfXLogRecordV0 + record->xl_len;
+
/*
* Make sure it will fit in buffer (currently, it is mechanically
* impossible for this test to fail, but it seems like a good idea
@@ -526,7 +533,7 @@ ReadRecordV0(XLogRecPtr *RecPtr, char *buffer)
{
/* Need to reassemble record */
XLogContRecordV0 *contrecord;
- uint32 gotlen = len;
+ uint32 gotlen = len;
memcpy(buffer, record, len);
record = (XLogRecordV0 *) buffer;
@@ -551,13 +558,13 @@ ReadRecordV0(XLogRecPtr *RecPtr, char *buffer)
if (!(((XLogPageHeaderV0) readBuf)->xlp_info & XLP_FIRST_IS_CONTRECORD))
goto next_record_is_invalid;
contrecord = (XLogContRecordV0 *) ((char *) readBuf + SizeOfXLogPHDV0);
- if (contrecord->xl_len == 0 ||
+ if (contrecord->xl_len == 0 ||
total_len != (contrecord->xl_len + gotlen))
goto next_record_is_invalid;
len = BLCKSZ - SizeOfXLogPHDV0 - SizeOfXLogContRecordV0;
if (contrecord->xl_len > len)
{
- memcpy(buffer, (char *)contrecord + SizeOfXLogContRecordV0, len);
+ memcpy(buffer, (char *) contrecord + SizeOfXLogContRecordV0, len);
gotlen += len;
buffer += len;
continue;
@@ -587,7 +594,7 @@ next_record_is_invalid:;
* Check whether the xlog header of a page just read in looks valid.
*
* This is just a convenience subroutine to avoid duplicated code in
- * ReadRecord. It's not intended for use from anywhere else.
+ * ReadRecord. It's not intended for use from anywhere else.
*/
static bool
ValidXLOGHeaderV0(XLogPageHeaderV0 hdr)
@@ -610,6 +617,7 @@ GuessControlValues(void)
{
#ifdef USE_LOCALE
char *localeptr;
+
#endif
/*
@@ -625,7 +633,7 @@ GuessControlValues(void)
ControlFile.checkPointCopy.redo.xrecoff = SizeOfXLogPHD;
ControlFile.checkPointCopy.undo = ControlFile.checkPointCopy.redo;
ControlFile.checkPointCopy.ThisStartUpID = 0;
- ControlFile.checkPointCopy.nextXid = (TransactionId) 514; /* XXX */
+ ControlFile.checkPointCopy.nextXid = (TransactionId) 514; /* XXX */
ControlFile.checkPointCopy.nextOid = BootstrapObjectIdData;
ControlFile.checkPointCopy.time = time(NULL);
@@ -677,7 +685,7 @@ PrintControlValues(void)
"pg_control version number: %u\n"
"Catalog version number: %u\n"
"Current log file id: %u\n"
- "Next log file segment: %u\n"
+ "Next log file segment: %u\n"
"Latest checkpoint's StartUpID: %u\n"
"Latest checkpoint's NextXID: %u\n"
"Latest checkpoint's NextOID: %u\n"
@@ -707,11 +715,11 @@ static void
RewriteControlFile(void)
{
int fd;
- char buffer[BLCKSZ]; /* need not be aligned */
+ char buffer[BLCKSZ]; /* need not be aligned */
/*
- * Adjust fields as needed to force an empty XLOG starting at the
- * next available segment.
+ * Adjust fields as needed to force an empty XLOG starting at the next
+ * available segment.
*/
newXlogId = ControlFile.logId;
newXlogSeg = ControlFile.logSeg;
@@ -734,17 +742,17 @@ RewriteControlFile(void)
/* Contents are protected with a CRC */
INIT_CRC64(ControlFile.crc);
- COMP_CRC64(ControlFile.crc,
- (char*) &ControlFile + sizeof(crc64),
+ COMP_CRC64(ControlFile.crc,
+ (char *) &ControlFile + sizeof(crc64),
sizeof(ControlFileData) - sizeof(crc64));
FIN_CRC64(ControlFile.crc);
/*
- * We write out BLCKSZ bytes into pg_control, zero-padding the
- * excess over sizeof(ControlFileData). This reduces the odds
- * of premature-EOF errors when reading pg_control. We'll still
- * fail when we check the contents of the file, but hopefully with
- * a more specific error than "couldn't read pg_control".
+ * We write out BLCKSZ bytes into pg_control, zero-padding the excess
+ * over sizeof(ControlFileData). This reduces the odds of
+ * premature-EOF errors when reading pg_control. We'll still fail
+ * when we check the contents of the file, but hopefully with a more
+ * specific error than "couldn't read pg_control".
*/
if (sizeof(ControlFileData) > BLCKSZ)
{
@@ -786,9 +794,9 @@ RewriteControlFile(void)
static void
KillExistingXLOG(void)
{
- DIR *xldir;
- struct dirent *xlde;
- char path[MAXPGPATH];
+ DIR *xldir;
+ struct dirent *xlde;
+ char path[MAXPGPATH];
xldir = opendir(XLogDir);
if (xldir == NULL)
@@ -803,7 +811,7 @@ KillExistingXLOG(void)
if (strlen(xlde->d_name) == 16 &&
strspn(xlde->d_name, "0123456789ABCDEF") == 16)
{
- sprintf(path, "%s%c%s", XLogDir, SEP_CHAR, xlde->d_name);
+ sprintf(path, "%s%c%s", XLogDir, SEP_CHAR, xlde->d_name);
if (unlink(path) < 0)
{
perror(path);
@@ -858,7 +866,7 @@ WriteEmptyXLOG(void)
INIT_CRC64(crc);
COMP_CRC64(crc, &ControlFile.checkPointCopy, sizeof(CheckPoint));
- COMP_CRC64(crc, (char*) record + sizeof(crc64),
+ COMP_CRC64(crc, (char *) record + sizeof(crc64),
SizeOfXLogRecord - sizeof(crc64));
FIN_CRC64(crc);
record->xl_crc = crc;
@@ -914,13 +922,13 @@ usage(void)
int
-main(int argc, char ** argv)
+main(int argc, char **argv)
{
- int argn;
- bool force = false;
- bool noupdate = false;
- int fd;
- char path[MAXPGPATH];
+ int argn;
+ bool force = false;
+ bool noupdate = false;
+ int fd;
+ char path[MAXPGPATH];
for (argn = 1; argn < argc; argn++)
{
@@ -934,7 +942,7 @@ main(int argc, char ** argv)
usage();
}
- if (argn != argc-1) /* one required non-switch argument */
+ if (argn != argc - 1) /* one required non-switch argument */
usage();
DataDir = argv[argn++];
@@ -946,7 +954,8 @@ main(int argc, char ** argv)
/*
* Check for a postmaster lock file --- if there is one, refuse to
- * proceed, on grounds we might be interfering with a live installation.
+ * proceed, on grounds we might be interfering with a live
+ * installation.
*/
snprintf(path, MAXPGPATH, "%s%cpostmaster.pid", DataDir, SEP_CHAR);
@@ -973,8 +982,8 @@ main(int argc, char ** argv)
GuessControlValues();
/*
- * If we had to guess anything, and -f was not given, just print
- * the guessed values and exit. Also print if -n is given.
+ * If we had to guess anything, and -f was not given, just print the
+ * guessed values and exit. Also print if -n is given.
*/
if ((guessed && !force) || noupdate)
{
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-02 20:17:19 +0000