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Commit356ebd3

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committed
Add checksums database support.
1 parent6cb6b3a commit356ebd3

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6 files changed

+34
-3
lines changed

6 files changed

+34
-3
lines changed

‎backup.c

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -461,6 +461,7 @@ do_backup(pgBackupOption bkupopt)
461461
current.wal_block_size=XLOG_BLCKSZ;
462462
current.recovery_xid=0;
463463
current.recovery_time= (time_t)0;
464+
current.checksum_version=get_data_checksum_version(true);
464465

465466
/* create backup directory and backup.ini */
466467
if (!check)

‎catalog.c

Lines changed: 3 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -329,6 +329,7 @@ pgBackupWriteResultSection(FILE *out, pgBackup *backup)
329329
backup->data_bytes);
330330
fprintf(out,"BLOCK_SIZE=%u\n",backup->block_size);
331331
fprintf(out,"XLOG_BLOCK_SIZE=%u\n",backup->wal_block_size);
332+
fprintf(out,"CHECKSUM_VERSION=%u\n",backup->checksum_version);
332333

333334
fprintf(out,"STATUS=%s\n",status2str(backup->status));
334335
}
@@ -383,6 +384,7 @@ catalog_read_ini(const char *path)
383384
{'I',0,"data-bytes",NULL,SOURCE_ENV },
384385
{'u',0,"block-size",NULL,SOURCE_ENV },
385386
{'u',0,"xlog-block-size",NULL,SOURCE_ENV },
387+
{'u',0,"checksum_version",NULL,SOURCE_ENV },
386388
{'s',0,"status",NULL,SOURCE_ENV },
387389
{0 }
388390
};
@@ -405,6 +407,7 @@ catalog_read_ini(const char *path)
405407
options[i++].var=&backup->data_bytes;
406408
options[i++].var=&backup->block_size;
407409
options[i++].var=&backup->wal_block_size;
410+
options[i++].var=&backup->checksum_version;
408411
options[i++].var=&status;
409412
Assert(i==lengthof(options)-1);
410413

‎data.c

Lines changed: 7 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -17,6 +17,7 @@
1717
#include"libpq/pqsignal.h"
1818
#include"storage/block.h"
1919
#include"storage/bufpage.h"
20+
#include"storage/checksum_impl.h"
2021

2122
typedefstructBackupPageHeader
2223
{
@@ -299,7 +300,8 @@ backup_data_file(const char *from_root, const char *to_root,
299300
void
300301
restore_data_file(constchar*from_root,
301302
constchar*to_root,
302-
pgFile*file)
303+
pgFile*file,
304+
pgBackup*backup)
303305
{
304306
charto_path[MAXPGPATH];
305307
FILE*in;
@@ -386,6 +388,10 @@ restore_data_file(const char *from_root,
386388
blknum,file->path,strerror(errno));
387389
}
388390

391+
/* update checksum because we are not save whole */
392+
if(backup->checksum_version)
393+
((PageHeader)page.data)->pd_checksum=pg_checksum_page(page.data,header.block);
394+
389395
/*
390396
* Seek and write the restored page. Backup might have holes in
391397
* differential backups.

‎pg_arman.h

Lines changed: 4 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -23,6 +23,7 @@
2323
#include"datapagemap.h"
2424
#include"storage/bufpage.h"
2525
#include"storage/block.h"
26+
#include"storage/checksum.h"
2627

2728
/* Query to fetch current transaction ID */
2829
#defineTXID_CURRENT_SQL"SELECT txid_current();"
@@ -140,6 +141,7 @@ typedef struct pgBackup
140141
/* data/wal block size for compatibility check */
141142
uint32block_size;
142143
uint32wal_block_size;
144+
uint32checksum_version;
143145
}pgBackup;
144146

145147
typedefstructpgBackupOption
@@ -288,7 +290,7 @@ extern int pgFileCompareMtimeDesc(const void *f1, const void *f2);
288290
externboolbackup_data_file(constchar*from_root,constchar*to_root,
289291
pgFile*file,constXLogRecPtr*lsn);
290292
externvoidrestore_data_file(constchar*from_root,constchar*to_root,
291-
pgFile*file);
293+
pgFile*file,pgBackup*backup);
292294
externboolcopy_file(constchar*from_root,constchar*to_root,
293295
pgFile*file);
294296

@@ -306,6 +308,7 @@ extern const char *status2str(BackupStatus status);
306308
externvoidremove_trailing_space(char*buf,intcomment_mark);
307309
externvoidremove_not_digit(char*buf,size_tlen,constchar*str);
308310
externXLogRecPtrget_last_ptrack_lsn(void);
311+
externuint32get_data_checksum_version(boolsafe);
309312

310313
/* in status.c */
311314
externboolis_pg_running(void);

‎restore.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -437,7 +437,7 @@ restore_files(void *arg)
437437

438438
/* restore file */
439439
if (!check)
440-
restore_data_file(from_root,pgdata,file);
440+
restore_data_file(from_root,pgdata,file,arguments->backup);
441441

442442
/* print size of restored file */
443443
if (!check)

‎util.c

Lines changed: 18 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -111,6 +111,24 @@ get_current_timeline(bool safe)
111111
returnControlFile.checkPointCopy.ThisTimeLineID;
112112
}
113113

114+
uint32
115+
get_data_checksum_version(boolsafe)
116+
{
117+
ControlFileDataControlFile;
118+
char*buffer;
119+
size_tsize;
120+
121+
/* First fetch file... */
122+
buffer=slurpFile(pgdata,"global/pg_control",&size,safe);
123+
if (buffer==NULL)
124+
return0;
125+
digestControlFile(&ControlFile,buffer,size);
126+
pg_free(buffer);
127+
128+
returnControlFile.data_checksum_version;
129+
}
130+
131+
114132
/*
115133
* Convert time_t value to ISO-8601 format string
116134
*/

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