PostgreSQL Source Code git master
Data Structures | Enumerations | Functions | Variables
pg_checksums.c File Reference
#include "postgres_fe.h"
#include <dirent.h>
#include <limits.h>
#include <sys/stat.h>
#include <time.h>
#include <unistd.h>
#include "common/controldata_utils.h"
#include "common/file_utils.h"
#include "common/logging.h"
#include "common/relpath.h"
#include "fe_utils/option_utils.h"
#include "getopt_long.h"
#include "pg_getopt.h"
#include "storage/bufpage.h"
#include "storage/checksum.h"
#include "storage/checksum_impl.h"
Include dependency graph for pg_checksums.c:

Go to the source code of this file.

Data Structures

struct   exclude_list_item
 

Enumerations

enum   PgChecksumMode { PG_MODE_CHECK , PG_MODE_DISABLE , PG_MODE_ENABLE }
 

Functions

static void  usage (void)
 
static void  progress_report (bool finished)
 
static bool  skipfile (const char *fn)
 
static void  scan_file (const char *fn, int segmentno)
 
static int64  scan_directory (const char *basedir, const char *subdir, bool sizeonly)
 
int  main (int argc, char *argv[])
 

Variables

static int64  files_scanned = 0
 
static int64  files_written = 0
 
static int64  blocks_scanned = 0
 
static int64  blocks_written = 0
 
static int64  badblocks = 0
 
static ControlFileData *  ControlFile
 
static char *  only_filenode = NULL
 
static bool  do_sync = true
 
static bool  verbose = false
 
static bool  showprogress = false
 
static DataDirSyncMethod  sync_method = DATA_DIR_SYNC_METHOD_FSYNC
 
static PgChecksumMode  mode = PG_MODE_CHECK
 
static const char *  progname
 
static int64  total_size = 0
 
static int64  current_size = 0
 
static pg_time_t  last_progress_report = 0
 
static const struct exclude_list_item  skip []
 

Enumeration Type Documentation

◆ PgChecksumMode

enum PgChecksumMode
Enumerator
PG_MODE_CHECK 
PG_MODE_DISABLE 
PG_MODE_ENABLE 

Definition at line 48 of file pg_checksums.c.

49{
PgChecksumMode
Definition: pg_checksums.c:49
@ PG_MODE_CHECK
Definition: pg_checksums.c:50
@ PG_MODE_DISABLE
Definition: pg_checksums.c:51
@ PG_MODE_ENABLE
Definition: pg_checksums.c:52

Function Documentation

◆ main()

int main ( int  argc,
char *  argv[] 
)

Definition at line 432 of file pg_checksums.c.

433{
434 static struct option long_options[] = {
435 {"check", no_argument, NULL, 'c'},
436 {"pgdata", required_argument, NULL, 'D'},
437 {"disable", no_argument, NULL, 'd'},
438 {"enable", no_argument, NULL, 'e'},
439 {"filenode", required_argument, NULL, 'f'},
440 {"no-sync", no_argument, NULL, 'N'},
441 {"progress", no_argument, NULL, 'P'},
442 {"verbose", no_argument, NULL, 'v'},
443 {"sync-method", required_argument, NULL, 1},
444 {NULL, 0, NULL, 0}
445 };
446
447 char *DataDir = NULL;
448 int c;
449 int option_index;
450 bool crc_ok;
451
452 pg_logging_init(argv[0]);
453 set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("pg_checksums"));
454 progname = get_progname(argv[0]);
455
456 if (argc > 1)
457 {
458 if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0)
459 {
460 usage();
461 exit(0);
462 }
463 if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
464 {
465 puts("pg_checksums (PostgreSQL) " PG_VERSION);
466 exit(0);
467 }
468 }
469
470 while ((c = getopt_long(argc, argv, "cdD:ef:NPv", long_options, &option_index)) != -1)
471 {
472 switch (c)
473 {
474 case 'c':
476 break;
477 case 'd':
479 break;
480 case 'D':
481 DataDir = optarg;
482 break;
483 case 'e':
485 break;
486 case 'f':
487 if (!option_parse_int(optarg, "-f/--filenode", 0,
488 INT_MAX,
489 NULL))
490 exit(1);
492 break;
493 case 'N':
494 do_sync = false;
495 break;
496 case 'P':
497 showprogress = true;
498 break;
499 case 'v':
500 verbose = true;
501 break;
502 case 1:
504 exit(1);
505 break;
506 default:
507 /* getopt_long already emitted a complaint */
508 pg_log_error_hint("Try \"%s --help\" for more information.", progname);
509 exit(1);
510 }
511 }
512
513 if (DataDir == NULL)
514 {
515 if (optind < argc)
516 DataDir = argv[optind++];
517 else
518 DataDir = getenv("PGDATA");
519
520 /* If no DataDir was specified, and none could be found, error out */
521 if (DataDir == NULL)
522 {
523 pg_log_error("no data directory specified");
524 pg_log_error_hint("Try \"%s --help\" for more information.", progname);
525 exit(1);
526 }
527 }
528
529 /* Complain if any arguments remain */
530 if (optind < argc)
531 {
532 pg_log_error("too many command-line arguments (first is \"%s\")",
533 argv[optind]);
534 pg_log_error_hint("Try \"%s --help\" for more information.", progname);
535 exit(1);
536 }
537
538 /* filenode checking only works in --check mode */
540 {
541 pg_log_error("option -f/--filenode can only be used with --check");
542 pg_log_error_hint("Try \"%s --help\" for more information.", progname);
543 exit(1);
544 }
545
546 /* Read the control file and check compatibility */
548 if (!crc_ok)
549 pg_fatal("pg_control CRC value is incorrect");
550
552 pg_fatal("cluster is not compatible with this version of pg_checksums");
553
554 if (ControlFile->blcksz != BLCKSZ)
555 {
556 pg_log_error("database cluster is not compatible");
557 pg_log_error_detail("The database cluster was initialized with block size %u, but pg_checksums was compiled with block size %u.",
558 ControlFile->blcksz, BLCKSZ);
559 exit(1);
560 }
561
562 /*
563 * Check if cluster is running. A clean shutdown is required to avoid
564 * random checksum failures caused by torn pages. Note that this doesn't
565 * guard against someone starting the cluster concurrently.
566 */
569 pg_fatal("cluster must be shut down");
570
573 pg_fatal("data checksums are not enabled in cluster");
574
577 pg_fatal("data checksums are already disabled in cluster");
578
581 pg_fatal("data checksums are already enabled in cluster");
582
583 /* Operate on all files if checking or enabling checksums */
585 {
586 /*
587 * If progress status information is requested, we need to scan the
588 * directory tree twice: once to know how much total data needs to be
589 * processed and once to do the real work.
590 */
591 if (showprogress)
592 {
593 total_size = scan_directory(DataDir, "global", true);
594 total_size += scan_directory(DataDir, "base", true);
596 }
597
598 (void) scan_directory(DataDir, "global", false);
599 (void) scan_directory(DataDir, "base", false);
600 (void) scan_directory(DataDir, PG_TBLSPC_DIR, false);
601
602 if (showprogress)
603 progress_report(true);
604
605 printf(_("Checksum operation completed\n"));
606 printf(_("Files scanned: %" PRId64 "\n"), files_scanned);
607 printf(_("Blocks scanned: %" PRId64 "\n"), blocks_scanned);
608 if (mode == PG_MODE_CHECK)
609 {
610 printf(_("Bad checksums: %" PRId64 "\n"), badblocks);
611 printf(_("Data checksum version: %u\n"), ControlFile->data_checksum_version);
612
613 if (badblocks > 0)
614 exit(1);
615 }
616 else if (mode == PG_MODE_ENABLE)
617 {
618 printf(_("Files written: %" PRId64 "\n"), files_written);
619 printf(_("Blocks written: %" PRId64 "\n"), blocks_written);
620 }
621 }
622
623 /*
624 * Finally make the data durable on disk if enabling or disabling
625 * checksums. Flush first the data directory for safety, and then update
626 * the control file to keep the switch consistent.
627 */
629 {
632
633 if (do_sync)
634 {
635 pg_log_info("syncing data directory");
636 sync_pgdata(DataDir, PG_VERSION_NUM, sync_method, true);
637 }
638
639 pg_log_info("updating control file");
641
642 if (verbose)
643 printf(_("Data checksum version: %u\n"), ControlFile->data_checksum_version);
644 if (mode == PG_MODE_ENABLE)
645 printf(_("Checksums enabled in cluster\n"));
646 else
647 printf(_("Checksums disabled in cluster\n"));
648 }
649
650 return 0;
651}
#define PG_DATA_CHECKSUM_VERSION
Definition: bufpage.h:207
#define PG_TEXTDOMAIN(domain)
Definition: c.h:1213
void set_pglocale_pgservice(const char *argv0, const char *app)
Definition: exec.c:430
void update_controlfile(const char *DataDir, ControlFileData *ControlFile, bool do_sync)
ControlFileData * get_controlfile(const char *DataDir, bool *crc_ok_p)
_
#define _(x)
Definition: elog.c:91
int getopt_long(int argc, char *const argv[], const char *optstring, const struct option *longopts, int *longindex)
Definition: getopt_long.c:60
#define no_argument
Definition: getopt_long.h:25
#define required_argument
Definition: getopt_long.h:26
char * DataDir
Definition: globals.c:71
void pg_logging_init(const char *argv0)
Definition: logging.c:83
#define pg_log_error(...)
Definition: logging.h:106
#define pg_log_error_hint(...)
Definition: logging.h:112
#define pg_log_info(...)
Definition: logging.h:124
#define pg_log_error_detail(...)
Definition: logging.h:109
char * pstrdup(const char *in)
Definition: mcxt.c:1759
bool option_parse_int(const char *optarg, const char *optname, int min_range, int max_range, int *result)
Definition: option_utils.c:50
bool parse_sync_method(const char *optarg, DataDirSyncMethod *sync_method)
Definition: option_utils.c:90
#define pg_fatal(...)
static int64 total_size
Definition: pg_checksums.c:62
static PgChecksumMode mode
Definition: pg_checksums.c:55
static char * only_filenode
Definition: pg_checksums.c:42
static int64 blocks_scanned
Definition: pg_checksums.c:37
static void progress_report(bool finished)
Definition: pg_checksums.c:123
static int64 scan_directory(const char *basedir, const char *subdir, bool sizeonly)
Definition: pg_checksums.c:299
static int64 files_scanned
Definition: pg_checksums.c:35
static bool do_sync
Definition: pg_checksums.c:43
static bool verbose
Definition: pg_checksums.c:44
static ControlFileData * ControlFile
Definition: pg_checksums.c:40
static DataDirSyncMethod sync_method
Definition: pg_checksums.c:46
static int64 blocks_written
Definition: pg_checksums.c:38
static bool showprogress
Definition: pg_checksums.c:45
static const char * progname
Definition: pg_checksums.c:57
static void usage(void)
Definition: pg_checksums.c:67
static int64 files_written
Definition: pg_checksums.c:36
static int64 badblocks
Definition: pg_checksums.c:39
#define PG_CONTROL_VERSION
Definition: pg_control.h:25
@ DB_SHUTDOWNED_IN_RECOVERY
Definition: pg_control.h:93
@ DB_SHUTDOWNED
Definition: pg_control.h:92
PGDLLIMPORT int optind
Definition: getopt.c:51
PGDLLIMPORT char * optarg
Definition: getopt.c:53
const char * get_progname(const char *argv0)
Definition: path.c:652
#define printf(...)
Definition: port.h:245
c
char * c
Definition: preproc-cursor.c:31
#define PG_TBLSPC_DIR
Definition: relpath.h:41
uint32 pg_control_version
Definition: pg_control.h:125
DBState state
Definition: pg_control.h:131
uint32 data_checksum_version
Definition: pg_control.h:222
uint32 blcksz
Definition: pg_control.h:207

References _, badblocks, ControlFileData::blcksz, blocks_scanned, blocks_written, ControlFile, ControlFileData::data_checksum_version, DataDir, DB_SHUTDOWNED, DB_SHUTDOWNED_IN_RECOVERY, do_sync, files_scanned, files_written, get_controlfile(), get_progname(), getopt_long(), mode, no_argument, only_filenode, optarg, optind, option_parse_int(), parse_sync_method(), PG_CONTROL_VERSION, ControlFileData::pg_control_version, PG_DATA_CHECKSUM_VERSION, pg_fatal, pg_log_error, pg_log_error_detail, pg_log_error_hint, pg_log_info, pg_logging_init(), PG_MODE_CHECK, PG_MODE_DISABLE, PG_MODE_ENABLE, PG_TBLSPC_DIR, PG_TEXTDOMAIN, printf, progname, progress_report(), pstrdup(), required_argument, scan_directory(), set_pglocale_pgservice(), showprogress, ControlFileData::state, sync_method, total_size, update_controlfile(), usage(), and verbose.

◆ progress_report()

static void progress_report ( bool  finished )
static

Definition at line 123 of file pg_checksums.c.

124{
125 int percent;
127
129
130 now = time(NULL);
131 if (now == last_progress_report && !finished)
132 return; /* Max once per second */
133
134 /* Save current time */
136
137 /* Adjust total size if current_size is larger */
140
141 /* Calculate current percentage of size done */
142 percent = total_size ? (int) ((current_size) * 100 / total_size) : 0;
143
144 fprintf(stderr, _("%" PRId64 "/%" PRId64 " MB (%d%%) computed"),
145 (current_size / (1024 * 1024)),
146 (total_size / (1024 * 1024)),
147 percent);
148
149 /*
150 * Stay on the same line if reporting to a terminal and we're not done
151 * yet.
152 */
153 fputc((!finished && isatty(fileno(stderr))) ? '\r' : '\n', stderr);
154}
Datum now(PG_FUNCTION_ARGS)
Definition: timestamp.c:1609
#define fprintf(file, fmt, msg)
Definition: cubescan.l:21
Assert(PointerIsAligned(start, uint64))
static int64 current_size
Definition: pg_checksums.c:63
static pg_time_t last_progress_report
Definition: pg_checksums.c:64
int64 pg_time_t
Definition: pgtime.h:23

References _, Assert(), current_size, fprintf, last_progress_report, now(), showprogress, and total_size.

Referenced by main(), and scan_file().

◆ scan_directory()

static int64 scan_directory ( const char *  basedir,
const char *  subdir,
bool  sizeonly 
)
static

Definition at line 299 of file pg_checksums.c.

300{
301 int64 dirsize = 0;
302 char path[MAXPGPATH];
303 DIR *dir;
304 struct dirent *de;
305
306 snprintf(path, sizeof(path), "%s/%s", basedir, subdir);
307 dir = opendir(path);
308 if (!dir)
309 pg_fatal("could not open directory \"%s\": %m", path);
310 while ((de = readdir(dir)) != NULL)
311 {
312 char fn[MAXPGPATH];
313 struct stat st;
314
315 if (strcmp(de->d_name, ".") == 0 ||
316 strcmp(de->d_name, "..") == 0)
317 continue;
318
319 /* Skip temporary files */
320 if (strncmp(de->d_name,
322 strlen(PG_TEMP_FILE_PREFIX)) == 0)
323 continue;
324
325 /* Skip temporary folders */
326 if (strncmp(de->d_name,
328 strlen(PG_TEMP_FILES_DIR)) == 0)
329 continue;
330
331 /* Skip macOS system files */
332 if (strcmp(de->d_name, ".DS_Store") == 0)
333 continue;
334
335 snprintf(fn, sizeof(fn), "%s/%s", path, de->d_name);
336 if (lstat(fn, &st) < 0)
337 pg_fatal("could not stat file \"%s\": %m", fn);
338 if (S_ISREG(st.st_mode))
339 {
340 char fnonly[MAXPGPATH];
341 char *forkpath,
342 *segmentpath;
343 int segmentno = 0;
344
345 if (skipfile(de->d_name))
346 continue;
347
348 /*
349 * Cut off at the segment boundary (".") to get the segment number
350 * in order to mix it into the checksum. Then also cut off at the
351 * fork boundary, to get the filenode the file belongs to for
352 * filtering.
353 */
354 strlcpy(fnonly, de->d_name, sizeof(fnonly));
355 segmentpath = strchr(fnonly, '.');
356 if (segmentpath != NULL)
357 {
358 *segmentpath++ = '0円';
359 segmentno = atoi(segmentpath);
360 if (segmentno == 0)
361 pg_fatal("invalid segment number %d in file name \"%s\"",
362 segmentno, fn);
363 }
364
365 forkpath = strchr(fnonly, '_');
366 if (forkpath != NULL)
367 *forkpath++ = '0円';
368
369 if (only_filenode && strcmp(only_filenode, fnonly) != 0)
370 /* filenode not to be included */
371 continue;
372
373 dirsize += st.st_size;
374
375 /*
376 * No need to work on the file when calculating only the size of
377 * the items in the data folder.
378 */
379 if (!sizeonly)
380 scan_file(fn, segmentno);
381 }
382 else if (S_ISDIR(st.st_mode) || S_ISLNK(st.st_mode))
383 {
384 /*
385 * If going through the entries of pg_tblspc, we assume to operate
386 * on tablespace locations where only TABLESPACE_VERSION_DIRECTORY
387 * is valid, resolving the linked locations and dive into them
388 * directly.
389 */
390 if (strncmp(PG_TBLSPC_DIR, subdir, strlen(PG_TBLSPC_DIR)) == 0)
391 {
392 char tblspc_path[MAXPGPATH];
393 struct stat tblspc_st;
394
395 /*
396 * Resolve tablespace location path and check whether
397 * TABLESPACE_VERSION_DIRECTORY exists. Not finding a valid
398 * location is unexpected, since there should be no orphaned
399 * links and no links pointing to something else than a
400 * directory.
401 */
402 snprintf(tblspc_path, sizeof(tblspc_path), "%s/%s/%s",
404
405 if (lstat(tblspc_path, &tblspc_st) < 0)
406 pg_fatal("could not stat file \"%s\": %m",
407 tblspc_path);
408
409 /*
410 * Move backwards once as the scan needs to happen for the
411 * contents of TABLESPACE_VERSION_DIRECTORY.
412 */
413 snprintf(tblspc_path, sizeof(tblspc_path), "%s/%s",
414 path, de->d_name);
415
416 /* Looks like a valid tablespace location */
417 dirsize += scan_directory(tblspc_path,
419 sizeonly);
420 }
421 else
422 {
423 dirsize += scan_directory(path, de->d_name, sizeonly);
424 }
425 }
426 }
427 closedir(dir);
428 return dirsize;
429}
int64_t int64
Definition: c.h:535
int closedir(DIR *)
Definition: dirent.c:127
struct dirent * readdir(DIR *)
Definition: dirent.c:78
DIR * opendir(const char *)
Definition: dirent.c:33
#define PG_TEMP_FILES_DIR
Definition: file_utils.h:63
#define PG_TEMP_FILE_PREFIX
Definition: file_utils.h:64
static char * basedir
Definition: pg_basebackup.c:131
static void scan_file(const char *fn, int segmentno)
Definition: pg_checksums.c:175
static bool skipfile(const char *fn)
Definition: pg_checksums.c:157
#define MAXPGPATH
#define snprintf
Definition: port.h:239
size_t strlcpy(char *dst, const char *src, size_t siz)
Definition: strlcpy.c:45
#define TABLESPACE_VERSION_DIRECTORY
Definition: relpath.h:33
Definition: dirent.c:26
Definition: dirent.h:10
char d_name[MAX_PATH]
Definition: dirent.h:15
Definition: win32_port.h:255
static void * fn(void *arg)
Definition: thread-alloc.c:119
#define lstat(path, sb)
Definition: win32_port.h:275
#define S_ISDIR(m)
Definition: win32_port.h:315
#define S_ISLNK(m)
Definition: win32_port.h:334
#define S_ISREG(m)
Definition: win32_port.h:318

References basedir, closedir(), dirent::d_name, fn(), lstat, MAXPGPATH, only_filenode, opendir(), pg_fatal, PG_TBLSPC_DIR, PG_TEMP_FILE_PREFIX, PG_TEMP_FILES_DIR, readdir(), S_ISDIR, S_ISLNK, S_ISREG, scan_directory(), scan_file(), skipfile(), snprintf, stat::st_mode, stat::st_size, strlcpy(), and TABLESPACE_VERSION_DIRECTORY.

Referenced by main(), and scan_directory().

◆ scan_file()

static void scan_file ( const char *  fn,
int  segmentno 
)
static

Definition at line 175 of file pg_checksums.c.

176{
178 PageHeader header = (PageHeader) buf.data;
179 int f;
180 BlockNumber blockno;
181 int flags;
182 int64 blocks_written_in_file = 0;
183
186
187 flags = (mode == PG_MODE_ENABLE) ? O_RDWR : O_RDONLY;
188 f = open(fn, PG_BINARY | flags, 0);
189
190 if (f < 0)
191 pg_fatal("could not open file \"%s\": %m", fn);
192
194
195 for (blockno = 0;; blockno++)
196 {
197 uint16 csum;
198 int r = read(f, buf.data, BLCKSZ);
199
200 if (r == 0)
201 break;
202 if (r != BLCKSZ)
203 {
204 if (r < 0)
205 pg_fatal("could not read block %u in file \"%s\": %m",
206 blockno, fn);
207 else
208 pg_fatal("could not read block %u in file \"%s\": read %d of %d",
209 blockno, fn, r, BLCKSZ);
210 }
212
213 /*
214 * Since the file size is counted as total_size for progress status
215 * information, the sizes of all pages including new ones in the file
216 * should be counted as current_size. Otherwise the progress reporting
217 * calculated using those counters may not reach 100%.
218 */
219 current_size += r;
220
221 /* New pages have no checksum yet */
222 if (PageIsNew(buf.data))
223 continue;
224
225 csum = pg_checksum_page(buf.data, blockno + segmentno * RELSEG_SIZE);
226 if (mode == PG_MODE_CHECK)
227 {
228 if (csum != header->pd_checksum)
229 {
231 pg_log_error("checksum verification failed in file \"%s\", block %u: calculated checksum %X but block contains %X",
232 fn, blockno, csum, header->pd_checksum);
233 badblocks++;
234 }
235 }
236 else if (mode == PG_MODE_ENABLE)
237 {
238 int w;
239
240 /*
241 * Do not rewrite if the checksum is already set to the expected
242 * value.
243 */
244 if (header->pd_checksum == csum)
245 continue;
246
247 blocks_written_in_file++;
248
249 /* Set checksum in page header */
250 header->pd_checksum = csum;
251
252 /* Seek back to beginning of block */
253 if (lseek(f, -BLCKSZ, SEEK_CUR) < 0)
254 pg_fatal("seek failed for block %u in file \"%s\": %m", blockno, fn);
255
256 /* Write block with checksum */
257 w = write(f, buf.data, BLCKSZ);
258 if (w != BLCKSZ)
259 {
260 if (w < 0)
261 pg_fatal("could not write block %u in file \"%s\": %m",
262 blockno, fn);
263 else
264 pg_fatal("could not write block %u in file \"%s\": wrote %d of %d",
265 blockno, fn, w, BLCKSZ);
266 }
267 }
268
269 if (showprogress)
270 progress_report(false);
271 }
272
273 if (verbose)
274 {
275 if (mode == PG_MODE_CHECK)
276 pg_log_info("checksums verified in file \"%s\"", fn);
277 if (mode == PG_MODE_ENABLE)
278 pg_log_info("checksums enabled in file \"%s\"", fn);
279 }
280
281 /* Update write counters if any write activity has happened */
282 if (blocks_written_in_file > 0)
283 {
285 blocks_written += blocks_written_in_file;
286 }
287
288 close(f);
289}
uint32 BlockNumber
Definition: block.h:31
PageHeaderData * PageHeader
Definition: bufpage.h:174
static bool PageIsNew(const PageData *page)
Definition: bufpage.h:234
#define PG_BINARY
Definition: c.h:1272
uint16_t uint16
Definition: c.h:537
uint16 pg_checksum_page(char *page, BlockNumber blkno)
Definition: checksum_impl.h:187
#define close(a)
Definition: win32.h:12
#define write(a, b, c)
Definition: win32.h:14
#define read(a, b, c)
Definition: win32.h:13
static char * buf
Definition: pg_test_fsync.c:72
uint16 pd_checksum
Definition: bufpage.h:164

References Assert(), badblocks, blocks_scanned, blocks_written, buf, close, ControlFile, current_size, ControlFileData::data_checksum_version, files_scanned, files_written, fn(), mode, PageIsNew(), PageHeaderData::pd_checksum, PG_BINARY, pg_checksum_page(), PG_DATA_CHECKSUM_VERSION, pg_fatal, pg_log_error, pg_log_info, PG_MODE_CHECK, PG_MODE_ENABLE, progress_report(), read, showprogress, verbose, and write.

Referenced by scan_directory().

◆ skipfile()

static bool skipfile ( const char *  fn )
static

Definition at line 157 of file pg_checksums.c.

158{
159 int excludeIdx;
160
161 for (excludeIdx = 0; skip[excludeIdx].name != NULL; excludeIdx++)
162 {
163 int cmplen = strlen(skip[excludeIdx].name);
164
165 if (!skip[excludeIdx].match_prefix)
166 cmplen++;
167 if (strncmp(skip[excludeIdx].name, fn, cmplen) == 0)
168 return true;
169 }
170
171 return false;
172}
static const struct exclude_list_item skip[]
Definition: pg_checksums.c:107
const char * name
Definition: basebackup.c:139
const char * name

References fn(), exclude_list_item::match_prefix, exclude_list_item::name, name, and skip.

Referenced by scan_directory().

◆ usage()

static void usage ( void  )
static

Definition at line 67 of file pg_checksums.c.

68{
69 printf(_("%s enables, disables, or verifies data checksums in a PostgreSQL database cluster.\n\n"), progname);
70 printf(_("Usage:\n"));
71 printf(_(" %s [OPTION]... [DATADIR]\n"), progname);
72 printf(_("\nOptions:\n"));
73 printf(_(" [-D, --pgdata=]DATADIR data directory\n"));
74 printf(_(" -c, --check check data checksums (default)\n"));
75 printf(_(" -d, --disable disable data checksums\n"));
76 printf(_(" -e, --enable enable data checksums\n"));
77 printf(_(" -f, --filenode=FILENODE check only relation with specified filenode\n"));
78 printf(_(" -N, --no-sync do not wait for changes to be written safely to disk\n"));
79 printf(_(" -P, --progress show progress information\n"));
80 printf(_(" --sync-method=METHOD set method for syncing files to disk\n"));
81 printf(_(" -v, --verbose output verbose messages\n"));
82 printf(_(" -V, --version output version information, then exit\n"));
83 printf(_(" -?, --help show this help, then exit\n"));
84 printf(_("\nIf no data directory (DATADIR) is specified, "
85 "the environment variable PGDATA\nis used.\n\n"));
86 printf(_("Report bugs to <%s>.\n"), PACKAGE_BUGREPORT);
87 printf(_("%s home page: <%s>\n"), PACKAGE_NAME, PACKAGE_URL);
88}

References _, printf, and progname.

Referenced by main().

Variable Documentation

◆ badblocks

int64 badblocks = 0
static

Definition at line 39 of file pg_checksums.c.

Referenced by main(), and scan_file().

◆ blocks_scanned

int64 blocks_scanned = 0
static

Definition at line 37 of file pg_checksums.c.

Referenced by main(), and scan_file().

◆ blocks_written

int64 blocks_written = 0
static

Definition at line 38 of file pg_checksums.c.

Referenced by main(), pgstat_slru_flush_cb(), and scan_file().

◆ ControlFile

ControlFileData* ControlFile
static

Definition at line 40 of file pg_checksums.c.

Referenced by main(), and scan_file().

◆ current_size

int64 current_size = 0
static

Definition at line 63 of file pg_checksums.c.

Referenced by ExtendBufferedRelTo(), progress_report(), scan_file(), and unicode_normalize().

◆ do_sync

bool do_sync = true
static

Definition at line 43 of file pg_checksums.c.

Referenced by main().

◆ files_scanned

int64 files_scanned = 0
static

Definition at line 35 of file pg_checksums.c.

Referenced by main(), and scan_file().

◆ files_written

int64 files_written = 0
static

Definition at line 36 of file pg_checksums.c.

Referenced by main(), and scan_file().

◆ last_progress_report

pg_time_t last_progress_report = 0
static

Definition at line 64 of file pg_checksums.c.

Referenced by progress_report().

◆ mode

PgChecksumMode mode = PG_MODE_CHECK
static

Definition at line 55 of file pg_checksums.c.

Referenced by _allocAH(), AllocateFile(), be_lo_open(), brinGetTupleForHeapBlock(), BufFileOpenFileSet(), column_privilege_check(), compute_new_xmax_infomask(), create_file_for_extract(), CreateArchive(), dump_variables(), ECPGsetcommit(), ExecCheckpoint(), ExtendBufferedRelTo(), extract_directory(), FileSetOpen(), ForEachLWLockHeldByMe(), from_char_set_mode(), get_mxact_status_for_lock(), GetLockmodeName(), GetMultiXactIdHintBits(), has_any_column_privilege_id(), has_any_column_privilege_id_id(), has_any_column_privilege_id_name(), has_any_column_privilege_name(), has_any_column_privilege_name_id(), has_any_column_privilege_name_name(), has_column_privilege_id_attnum(), has_column_privilege_id_id_attnum(), has_column_privilege_id_id_name(), has_column_privilege_id_name(), has_column_privilege_id_name_attnum(), has_column_privilege_id_name_name(), has_column_privilege_name_attnum(), has_column_privilege_name_id_attnum(), has_column_privilege_name_id_name(), has_column_privilege_name_name(), has_column_privilege_name_name_attnum(), has_column_privilege_name_name_name(), has_database_privilege_id(), has_database_privilege_id_id(), has_database_privilege_id_name(), has_database_privilege_name(), has_database_privilege_name_id(), has_database_privilege_name_name(), has_foreign_data_wrapper_privilege_id(), has_foreign_data_wrapper_privilege_id_id(), has_foreign_data_wrapper_privilege_id_name(), has_foreign_data_wrapper_privilege_name(), has_foreign_data_wrapper_privilege_name_id(), has_foreign_data_wrapper_privilege_name_name(), has_function_privilege_id(), has_function_privilege_id_id(), has_function_privilege_id_name(), has_function_privilege_name(), has_function_privilege_name_id(), has_function_privilege_name_name(), has_language_privilege_id(), has_language_privilege_id_id(), has_language_privilege_id_name(), has_language_privilege_name(), has_language_privilege_name_id(), has_language_privilege_name_name(), has_largeobject_privilege_id(), has_largeobject_privilege_id_id(), has_largeobject_privilege_name_id(), has_schema_privilege_id(), has_schema_privilege_id_id(), has_schema_privilege_id_name(), has_schema_privilege_name(), has_schema_privilege_name_id(), has_schema_privilege_name_name(), has_sequence_privilege_id(), has_sequence_privilege_id_id(), has_sequence_privilege_id_name(), has_sequence_privilege_name(), has_sequence_privilege_name_id(), has_sequence_privilege_name_name(), has_server_privilege_id(), has_server_privilege_id_id(), has_server_privilege_id_name(), has_server_privilege_name(), has_server_privilege_name_id(), has_server_privilege_name_name(), has_table_privilege_id(), has_table_privilege_id_id(), has_table_privilege_id_name(), has_table_privilege_name(), has_table_privilege_name_id(), has_table_privilege_name_name(), has_tablespace_privilege_id(), has_tablespace_privilege_id_id(), has_tablespace_privilege_id_name(), has_tablespace_privilege_name(), has_tablespace_privilege_name_id(), has_tablespace_privilege_name_name(), has_type_privilege_id(), has_type_privilege_id_id(), has_type_privilege_id_name(), has_type_privilege_name(), has_type_privilege_name_id(), has_type_privilege_name_name(), heap_acquire_tuplock(), heap_lock_tuple(), heap_lock_updated_tuple(), heap_lock_updated_tuple_rec(), heapam_tuple_lock(), InitDiscoverCompressFileHandle(), lo_creat(), lo_open(), LockBuffer(), logfile_open(), LWLockAcquire(), LWLockAcquireOrWait(), LWLockAttemptLock(), LWLockConditionalAcquire(), LWLockDisownInternal(), LWLockHeldByMeInMode(), LWLockQueueSelf(), LWLockRelease(), LWLockReleaseDisowned(), LWLockReleaseInternal(), main(), object_aclcheck(), object_aclcheck_ext(), open_direct(), open_none(), open_target_file(), open_write_none(), OpenPipeStream(), parseArchiveFormat(), PathNameOpenTemporaryFile(), pg_attribute_aclcheck(), pg_attribute_aclcheck_all(), pg_attribute_aclcheck_all_ext(), pg_attribute_aclcheck_ext(), pg_class_aclcheck(), pg_class_aclcheck_ext(), pg_has_role_id(), pg_has_role_id_id(), pg_has_role_id_name(), pg_has_role_name(), pg_has_role_name_id(), pg_has_role_name_name(), pg_largeobject_aclcheck_snapshot(), pg_lock_status(), pg_parameter_aclcheck(), pg_role_aclcheck(), pgp_s2k_fill(), pgp_set_s2k_mode(), pgp_set_text_mode(), pgp_set_unicode_mode(), popen_check(), process_pm_shutdown_request(), raw_parser(), ReadBuffer_common(), ReadBufferBI(), ReadBufferExtended(), ReadBufferWithoutRelcache(), scan_file(), SetOutput(), SyncRepQueueInsert(), SyncRepWaitForLSN(), SyncRepWakeQueue(), table_tuple_lock(), tarCreateHeader(), TargetPrivilegesCheck(), tarOpen(), test_lockmode_for_conflict(), WaitForWorkers(), waitonlock_error_callback(), whenever_action(), XLogReadBufferExtended(), XLogReadBufferForRedoExtended(), and ZeroAndLockBuffer().

◆ only_filenode

char* only_filenode = NULL
static

Definition at line 42 of file pg_checksums.c.

Referenced by main(), and scan_directory().

◆ progname

const char* progname
static

Definition at line 57 of file pg_checksums.c.

Referenced by main(), and usage().

◆ showprogress

bool showprogress = false
static

Definition at line 45 of file pg_checksums.c.

Referenced by main(), progress_report(), and scan_file().

◆ skip

const struct exclude_list_item skip[]
static
Initial value:
= {
{"pg_control", false},
{"pg_filenode.map", false},
{"pg_internal.init", true},
{"PG_VERSION", false},
{NULL, false}
}

Definition at line 107 of file pg_checksums.c.

Referenced by array_replace_internal(), DefineVirtualRelation(), dependencies_clauselist_selectivity(), filter_partitions(), heap_hot_search_buffer(), initTrie(), json_build_object_worker(), json_object_agg_transfn_worker(), jsonb_build_object_worker(), jsonb_object_agg_transfn_worker(), skipfile(), and verify_heapam().

◆ sync_method

DataDirSyncMethod sync_method = DATA_DIR_SYNC_METHOD_FSYNC
static

Definition at line 46 of file pg_checksums.c.

Referenced by main().

◆ total_size

int64 total_size = 0
static

Definition at line 62 of file pg_checksums.c.

Referenced by main(), make_new_segment(), and progress_report().

◆ verbose

bool verbose = false
static

Definition at line 44 of file pg_checksums.c.

Referenced by main(), and scan_file().

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