PostgreSQL Source Code  git master
pg_checksums.c File Reference
#include "postgres_fe.h"
#include <dirent.h>
#include <time.h>
#include <sys/stat.h>
#include <unistd.h>
#include "access/xlog_internal.h"
#include "common/controldata_utils.h"
#include "common/file_perm.h"
#include "common/file_utils.h"
#include "common/logging.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
 

Macros

#define PG_TEMP_FILES_DIR   "pgsql_tmp"
 
#define PG_TEMP_FILE_PREFIX   "pgsql_tmp"
 

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, BlockNumber segmentno)
 
static int64 scan_directory (const char *basedir, const char *subdir, bool sizeonly)
 
int main (int argc, char *argv[])
 

Variables

static int64 files = 0
 
static int64 blocks = 0
 
static int64 badblocks = 0
 
static ControlFileDataControlFile
 
static char * only_filenode = NULL
 
static bool do_sync = true
 
static bool verbose = false
 
static bool showprogress = false
 
static PgChecksumMode mode = PG_MODE_CHECK
 
static const char * progname
 
int64 total_size = 0
 
int64 current_size = 0
 
static pg_time_t last_progress_report = 0
 
static const struct exclude_list_item skip []
 

Macro Definition Documentation

◆ PG_TEMP_FILE_PREFIX

#define PG_TEMP_FILE_PREFIX   "pgsql_tmp"

◆ PG_TEMP_FILES_DIR

#define PG_TEMP_FILES_DIR   "pgsql_tmp"

Enumeration Type Documentation

◆ PgChecksumMode

Enumerator
PG_MODE_CHECK 
PG_MODE_DISABLE 
PG_MODE_ENABLE 

Definition at line 44 of file pg_checksums.c.

Function Documentation

◆ main()

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

Definition at line 451 of file pg_checksums.c.

References _, badblocks, ControlFileData::blcksz, blocks, ControlFileData::data_checksum_version, DataDir, DB_SHUTDOWNED, DB_SHUTDOWNED_IN_RECOVERY, do_sync, files, fprintf, get_controlfile(), get_progname(), getopt_long(), INT64_FORMAT, mode, no_argument, only_filenode, optarg, optind, PG_CONTROL_VERSION, ControlFileData::pg_control_version, PG_DATA_CHECKSUM_VERSION, pg_log_error, pg_log_info, pg_logging_init(), PG_MODE_CHECK, PG_MODE_DISABLE, PG_MODE_ENABLE, PG_TEXTDOMAIN, printf, progname, progress_report(), psprintf(), pstrdup(), required_argument, scan_directory(), set_pglocale_pgservice(), showprogress, ControlFileData::state, total_size, update_controlfile(), usage(), and verbose.

452 {
453  static struct option long_options[] = {
454  {"check", no_argument, NULL, 'c'},
455  {"pgdata", required_argument, NULL, 'D'},
456  {"disable", no_argument, NULL, 'd'},
457  {"enable", no_argument, NULL, 'e'},
458  {"filenode", required_argument, NULL, 'f'},
459  {"no-sync", no_argument, NULL, 'N'},
460  {"progress", no_argument, NULL, 'P'},
461  {"verbose", no_argument, NULL, 'v'},
462  {NULL, 0, NULL, 0}
463  };
464 
465  char *DataDir = NULL;
466  int c;
467  int option_index;
468  bool crc_ok;
469 
470  pg_logging_init(argv[0]);
471  set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("pg_checksums"));
472  progname = get_progname(argv[0]);
473 
474  if (argc > 1)
475  {
476  if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0)
477  {
478  usage();
479  exit(0);
480  }
481  if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
482  {
483  puts("pg_checksums (PostgreSQL) " PG_VERSION);
484  exit(0);
485  }
486  }
487 
488  while ((c = getopt_long(argc, argv, "cD:deNPf:v", long_options, &option_index)) != -1)
489  {
490  switch (c)
491  {
492  case 'c':
494  break;
495  case 'd':
497  break;
498  case 'e':
500  break;
501  case 'f':
502  if (atoi(optarg) == 0)
503  {
504  pg_log_error("invalid filenode specification, must be numeric: %s", optarg);
505  exit(1);
506  }
508  break;
509  case 'N':
510  do_sync = false;
511  break;
512  case 'v':
513  verbose = true;
514  break;
515  case 'D':
516  DataDir = optarg;
517  break;
518  case 'P':
519  showprogress = true;
520  break;
521  default:
522  fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
523  exit(1);
524  }
525  }
526 
527  if (DataDir == NULL)
528  {
529  if (optind < argc)
530  DataDir = argv[optind++];
531  else
532  DataDir = getenv("PGDATA");
533 
534  /* If no DataDir was specified, and none could be found, error out */
535  if (DataDir == NULL)
536  {
537  pg_log_error("no data directory specified");
538  fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
539  exit(1);
540  }
541  }
542 
543  /* Complain if any arguments remain */
544  if (optind < argc)
545  {
546  pg_log_error("too many command-line arguments (first is \"%s\")",
547  argv[optind]);
548  fprintf(stderr, _("Try \"%s --help\" for more information.\n"),
549  progname);
550  exit(1);
551  }
552 
553  /* filenode checking only works in --check mode */
554  if (mode != PG_MODE_CHECK && only_filenode)
555  {
556  pg_log_error("option -f/--filenode can only be used with --check");
557  fprintf(stderr, _("Try \"%s --help\" for more information.\n"),
558  progname);
559  exit(1);
560  }
561 
562  /* Read the control file and check compatibility */
563  ControlFile = get_controlfile(DataDir, &crc_ok);
564  if (!crc_ok)
565  {
566  pg_log_error("pg_control CRC value is incorrect");
567  exit(1);
568  }
569 
571  {
572  pg_log_error("cluster is not compatible with this version of pg_checksums");
573  exit(1);
574  }
575 
576  if (ControlFile->blcksz != BLCKSZ)
577  {
578  pg_log_error("database cluster is not compatible");
579  fprintf(stderr, _("The database cluster was initialized with block size %u, but pg_checksums was compiled with block size %u.\n"),
580  ControlFile->blcksz, BLCKSZ);
581  exit(1);
582  }
583 
584  /*
585  * Check if cluster is running. A clean shutdown is required to avoid
586  * random checksum failures caused by torn pages. Note that this doesn't
587  * guard against someone starting the cluster concurrently.
588  */
589  if (ControlFile->state != DB_SHUTDOWNED &&
591  {
592  pg_log_error("cluster must be shut down");
593  exit(1);
594  }
595 
597  mode == PG_MODE_CHECK)
598  {
599  pg_log_error("data checksums are not enabled in cluster");
600  exit(1);
601  }
602 
605  {
606  pg_log_error("data checksums are already disabled in cluster");
607  exit(1);
608  }
609 
611  mode == PG_MODE_ENABLE)
612  {
613  pg_log_error("data checksums are already enabled in cluster");
614  exit(1);
615  }
616 
617  /* Operate on all files if checking or enabling checksums */
618  if (mode == PG_MODE_CHECK || mode == PG_MODE_ENABLE)
619  {
620  /*
621  * If progress status information is requested, we need to scan the
622  * directory tree twice: once to know how much total data needs to be
623  * processed and once to do the real work.
624  */
625  if (showprogress)
626  {
627  total_size = scan_directory(DataDir, "global", true);
628  total_size += scan_directory(DataDir, "base", true);
629  total_size += scan_directory(DataDir, "pg_tblspc", true);
630  }
631 
632  (void) scan_directory(DataDir, "global", false);
633  (void) scan_directory(DataDir, "base", false);
634  (void) scan_directory(DataDir, "pg_tblspc", false);
635 
636  if (showprogress)
637  progress_report(true);
638 
639  printf(_("Checksum operation completed\n"));
640  printf(_("Files scanned: %s\n"), psprintf(INT64_FORMAT, files));
641  printf(_("Blocks scanned: %s\n"), psprintf(INT64_FORMAT, blocks));
642  if (mode == PG_MODE_CHECK)
643  {
644  printf(_("Bad checksums: %s\n"), psprintf(INT64_FORMAT, badblocks));
645  printf(_("Data checksum version: %u\n"), ControlFile->data_checksum_version);
646 
647  if (badblocks > 0)
648  exit(1);
649  }
650  }
651 
652  /*
653  * Finally make the data durable on disk if enabling or disabling
654  * checksums. Flush first the data directory for safety, and then update
655  * the control file to keep the switch consistent.
656  */
658  {
661 
662  if (do_sync)
663  {
664  pg_log_info("syncing data directory");
665  fsync_pgdata(DataDir, PG_VERSION_NUM);
666  }
667 
668  pg_log_info("updating control file");
670 
671  if (verbose)
672  printf(_("Data checksum version: %u\n"), ControlFile->data_checksum_version);
673  if (mode == PG_MODE_ENABLE)
674  printf(_("Checksums enabled in cluster\n"));
675  else
676  printf(_("Checksums disabled in cluster\n"));
677  }
678 
679  return 0;
680 }
static PgChecksumMode mode
Definition: pg_checksums.c:61
static const char * progname
Definition: pg_checksums.c:63
const char * get_progname(const char *argv0)
Definition: path.c:453
#define pg_log_error(...)
Definition: logging.h:80
int getopt_long(int argc, char *const argv[], const char *optstring, const struct option *longopts, int *longindex)
Definition: getopt_long.c:57
static void usage(void)
Definition: pg_checksums.c:73
char * pstrdup(const char *in)
Definition: mcxt.c:1299
void pg_logging_init(const char *argv0)
Definition: logging.c:81
char * psprintf(const char *fmt,...)
Definition: psprintf.c:46
static ControlFileData * ControlFile
Definition: pg_checksums.c:37
#define PG_CONTROL_VERSION
Definition: pg_control.h:25
uint32 pg_control_version
Definition: pg_control.h:121
#define printf(...)
Definition: port.h:222
static int64 files
Definition: pg_checksums.c:34
static bool showprogress
Definition: pg_checksums.c:42
#define fprintf
Definition: port.h:220
void update_controlfile(const char *DataDir, ControlFileData *ControlFile, bool do_sync)
#define required_argument
Definition: getopt_long.h:25
int optind
Definition: getopt.c:50
uint32 data_checksum_version
Definition: pg_control.h:220
char * c
static bool do_sync
Definition: pg_checksums.c:40
static int64 scan_directory(const char *basedir, const char *subdir, bool sizeonly)
Definition: pg_checksums.c:306
static bool verbose
Definition: pg_checksums.c:41
#define no_argument
Definition: getopt_long.h:24
#define PG_TEXTDOMAIN(domain)
Definition: c.h:1215
int64 total_size
Definition: pg_checksums.c:68
ControlFileData * get_controlfile(const char *DataDir, bool *crc_ok_p)
static int64 blocks
Definition: pg_checksums.c:35
#define INT64_FORMAT
Definition: c.h:483
static void progress_report(bool finished)
Definition: pg_checksums.c:128
static char * only_filenode
Definition: pg_checksums.c:39
static int64 badblocks
Definition: pg_checksums.c:36
#define PG_DATA_CHECKSUM_VERSION
Definition: bufpage.h:200
void set_pglocale_pgservice(const char *argv0, const char *app)
Definition: exec.c:433
char * optarg
Definition: getopt.c:52
char * DataDir
Definition: globals.c:65
#define _(x)
Definition: elog.c:89
#define pg_log_info(...)
Definition: logging.h:88

◆ progress_report()

static void progress_report ( bool  finished)
static

Definition at line 128 of file pg_checksums.c.

References _, Assert, current_size, fprintf, INT64_FORMAT, last_progress_report, now(), showprogress, snprintf, and total_size.

Referenced by main(), and scan_file().

129 {
130  int percent;
131  char total_size_str[32];
132  char current_size_str[32];
133  pg_time_t now;
134 
136 
137  now = time(NULL);
138  if (now == last_progress_report && !finished)
139  return; /* Max once per second */
140 
141  /* Save current time */
143 
144  /* Adjust total size if current_size is larger */
145  if (current_size > total_size)
147 
148  /* Calculate current percentage of size done */
149  percent = total_size ? (int) ((current_size) * 100 / total_size) : 0;
150 
151  /*
152  * Separate step to keep platform-dependent format code out of
153  * translatable strings. And we only test for INT64_FORMAT availability
154  * in snprintf, not fprintf.
155  */
156  snprintf(total_size_str, sizeof(total_size_str), INT64_FORMAT,
157  total_size / (1024 * 1024));
158  snprintf(current_size_str, sizeof(current_size_str), INT64_FORMAT,
159  current_size / (1024 * 1024));
160 
161  fprintf(stderr, _("%*s/%s MB (%d%%) computed"),
162  (int) strlen(current_size_str), current_size_str, total_size_str,
163  percent);
164 
165  /*
166  * Stay on the same line if reporting to a terminal and we're not done
167  * yet.
168  */
169  fputc((!finished && isatty(fileno(stderr))) ? '\r' : '\n', stderr);
170 }
int64 pg_time_t
Definition: pgtime.h:23
static bool showprogress
Definition: pg_checksums.c:42
#define fprintf
Definition: port.h:220
int64 total_size
Definition: pg_checksums.c:68
#define Assert(condition)
Definition: c.h:804
static pg_time_t last_progress_report
Definition: pg_checksums.c:70
#define INT64_FORMAT
Definition: c.h:483
int64 current_size
Definition: pg_checksums.c:69
#define snprintf
Definition: port.h:216
#define _(x)
Definition: elog.c:89
Datum now(PG_FUNCTION_ARGS)
Definition: timestamp.c:1544

◆ scan_directory()

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

Definition at line 306 of file pg_checksums.c.

References closedir(), dirent::d_name, fn(), lstat, MAXPGPATH, only_filenode, opendir(), pg_log_error, PG_TEMP_FILE_PREFIX, PG_TEMP_FILES_DIR, pgwin32_is_junction(), readdir(), S_ISDIR, S_ISREG, scan_file(), skipfile(), snprintf, stat::st_mode, stat::st_size, strlcpy(), and TABLESPACE_VERSION_DIRECTORY.

Referenced by main().

307 {
308  int64 dirsize = 0;
309  char path[MAXPGPATH];
310  DIR *dir;
311  struct dirent *de;
312 
313  snprintf(path, sizeof(path), "%s/%s", basedir, subdir);
314  dir = opendir(path);
315  if (!dir)
316  {
317  pg_log_error("could not open directory \"%s\": %m", path);
318  exit(1);
319  }
320  while ((de = readdir(dir)) != NULL)
321  {
322  char fn[MAXPGPATH];
323  struct stat st;
324 
325  if (strcmp(de->d_name, ".") == 0 ||
326  strcmp(de->d_name, "..") == 0)
327  continue;
328 
329  /* Skip temporary files */
330  if (strncmp(de->d_name,
332  strlen(PG_TEMP_FILE_PREFIX)) == 0)
333  continue;
334 
335  /* Skip temporary folders */
336  if (strncmp(de->d_name,
338  strlen(PG_TEMP_FILES_DIR)) == 0)
339  continue;
340 
341  snprintf(fn, sizeof(fn), "%s/%s", path, de->d_name);
342  if (lstat(fn, &st) < 0)
343  {
344  pg_log_error("could not stat file \"%s\": %m", fn);
345  exit(1);
346  }
347  if (S_ISREG(st.st_mode))
348  {
349  char fnonly[MAXPGPATH];
350  char *forkpath,
351  *segmentpath;
352  BlockNumber segmentno = 0;
353 
354  if (skipfile(de->d_name))
355  continue;
356 
357  /*
358  * Cut off at the segment boundary (".") to get the segment number
359  * in order to mix it into the checksum. Then also cut off at the
360  * fork boundary, to get the filenode the file belongs to for
361  * filtering.
362  */
363  strlcpy(fnonly, de->d_name, sizeof(fnonly));
364  segmentpath = strchr(fnonly, '.');
365  if (segmentpath != NULL)
366  {
367  *segmentpath++ = '\0';
368  segmentno = atoi(segmentpath);
369  if (segmentno == 0)
370  {
371  pg_log_error("invalid segment number %d in file name \"%s\"",
372  segmentno, fn);
373  exit(1);
374  }
375  }
376 
377  forkpath = strchr(fnonly, '_');
378  if (forkpath != NULL)
379  *forkpath++ = '\0';
380 
381  if (only_filenode && strcmp(only_filenode, fnonly) != 0)
382  /* filenode not to be included */
383  continue;
384 
385  dirsize += st.st_size;
386 
387  /*
388  * No need to work on the file when calculating only the size of
389  * the items in the data folder.
390  */
391  if (!sizeonly)
392  scan_file(fn, segmentno);
393  }
394 #ifndef WIN32
395  else if (S_ISDIR(st.st_mode) || S_ISLNK(st.st_mode))
396 #else
397  else if (S_ISDIR(st.st_mode) || pgwin32_is_junction(fn))
398 #endif
399  {
400  /*
401  * If going through the entries of pg_tblspc, we assume to operate
402  * on tablespace locations where only TABLESPACE_VERSION_DIRECTORY
403  * is valid, resolving the linked locations and dive into them
404  * directly.
405  */
406  if (strncmp("pg_tblspc", subdir, strlen("pg_tblspc")) == 0)
407  {
408  char tblspc_path[MAXPGPATH];
409  struct stat tblspc_st;
410 
411  /*
412  * Resolve tablespace location path and check whether
413  * TABLESPACE_VERSION_DIRECTORY exists. Not finding a valid
414  * location is unexpected, since there should be no orphaned
415  * links and no links pointing to something else than a
416  * directory.
417  */
418  snprintf(tblspc_path, sizeof(tblspc_path), "%s/%s/%s",
420 
421  if (lstat(tblspc_path, &tblspc_st) < 0)
422  {
423  pg_log_error("could not stat file \"%s\": %m",
424  tblspc_path);
425  exit(1);
426  }
427 
428  /*
429  * Move backwards once as the scan needs to happen for the
430  * contents of TABLESPACE_VERSION_DIRECTORY.
431  */
432  snprintf(tblspc_path, sizeof(tblspc_path), "%s/%s",
433  path, de->d_name);
434 
435  /* Looks like a valid tablespace location */
436  dirsize += scan_directory(tblspc_path,
438  sizeonly);
439  }
440  else
441  {
442  dirsize += scan_directory(path, de->d_name, sizeonly);
443  }
444  }
445  }
446  closedir(dir);
447  return dirsize;
448 }
#define pg_log_error(...)
Definition: logging.h:80
int closedir(DIR *)
Definition: dirent.c:123
#define PG_TEMP_FILES_DIR
Definition: pg_checksums.c:58
uint32 BlockNumber
Definition: block.h:31
Definition: dirent.h:9
static char * basedir
Definition: dirent.c:25
#define PG_TEMP_FILE_PREFIX
Definition: pg_checksums.c:59
#define MAXPGPATH
DIR * opendir(const char *)
Definition: dirent.c:33
#define TABLESPACE_VERSION_DIRECTORY
Definition: relpath.h:26
static int64 scan_directory(const char *basedir, const char *subdir, bool sizeonly)
Definition: pg_checksums.c:306
#define S_ISREG(m)
Definition: win32_port.h:319
static void * fn(void *arg)
size_t strlcpy(char *dst, const char *src, size_t siz)
Definition: strlcpy.c:45
static void scan_file(const char *fn, BlockNumber segmentno)
Definition: pg_checksums.c:191
struct dirent * readdir(DIR *)
Definition: dirent.c:78
#define S_ISDIR(m)
Definition: win32_port.h:316
#define lstat(path, sb)
Definition: win32_port.h:276
static char * only_filenode
Definition: pg_checksums.c:39
char d_name[MAX_PATH]
Definition: dirent.h:15
#define snprintf
Definition: port.h:216
static bool skipfile(const char *fn)
Definition: pg_checksums.c:173
bool pgwin32_is_junction(const char *path)

◆ scan_file()

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

Definition at line 191 of file pg_checksums.c.

References Assert, badblocks, blocks, buf, close, current_size, PGAlignedBlock::data, ControlFileData::data_checksum_version, files, header(), mode, PageIsNew, PageHeaderData::pd_checksum, PG_BINARY, pg_checksum_page(), PG_DATA_CHECKSUM_VERSION, pg_log_error, pg_log_info, PG_MODE_CHECK, PG_MODE_ENABLE, progress_report(), read, showprogress, verbose, and write.

Referenced by scan_directory().

192 {
195  int f;
196  BlockNumber blockno;
197  int flags;
198 
200  mode == PG_MODE_CHECK);
201 
202  flags = (mode == PG_MODE_ENABLE) ? O_RDWR : O_RDONLY;
203  f = open(fn, PG_BINARY | flags, 0);
204 
205  if (f < 0)
206  {
207  pg_log_error("could not open file \"%s\": %m", fn);
208  exit(1);
209  }
210 
211  files++;
212 
213  for (blockno = 0;; blockno++)
214  {
215  uint16 csum;
216  int r = read(f, buf.data, BLCKSZ);
217 
218  if (r == 0)
219  break;
220  if (r != BLCKSZ)
221  {
222  if (r < 0)
223  pg_log_error("could not read block %u in file \"%s\": %m",
224  blockno, fn);
225  else
226  pg_log_error("could not read block %u in file \"%s\": read %d of %d",
227  blockno, fn, r, BLCKSZ);
228  exit(1);
229  }
230  blocks++;
231 
232  /*
233  * Since the file size is counted as total_size for progress status
234  * information, the sizes of all pages including new ones in the file
235  * should be counted as current_size. Otherwise the progress reporting
236  * calculated using those counters may not reach 100%.
237  */
238  current_size += r;
239 
240  /* New pages have no checksum yet */
241  if (PageIsNew(header))
242  continue;
243 
244  csum = pg_checksum_page(buf.data, blockno + segmentno * RELSEG_SIZE);
245  if (mode == PG_MODE_CHECK)
246  {
247  if (csum != header->pd_checksum)
248  {
250  pg_log_error("checksum verification failed in file \"%s\", block %u: calculated checksum %X but block contains %X",
251  fn, blockno, csum, header->pd_checksum);
252  badblocks++;
253  }
254  }
255  else if (mode == PG_MODE_ENABLE)
256  {
257  int w;
258 
259  /* Set checksum in page header */
260  header->pd_checksum = csum;
261 
262  /* Seek back to beginning of block */
263  if (lseek(f, -BLCKSZ, SEEK_CUR) < 0)
264  {
265  pg_log_error("seek failed for block %u in file \"%s\": %m", blockno, fn);
266  exit(1);
267  }
268 
269  /* Write block with checksum */
270  w = write(f, buf.data, BLCKSZ);
271  if (w != BLCKSZ)
272  {
273  if (w < 0)
274  pg_log_error("could not write block %u in file \"%s\": %m",
275  blockno, fn);
276  else
277  pg_log_error("could not write block %u in file \"%s\": wrote %d of %d",
278  blockno, fn, w, BLCKSZ);
279  exit(1);
280  }
281  }
282 
283  if (showprogress)
284  progress_report(false);
285  }
286 
287  if (verbose)
288  {
289  if (mode == PG_MODE_CHECK)
290  pg_log_info("checksums verified in file \"%s\"", fn);
291  if (mode == PG_MODE_ENABLE)
292  pg_log_info("checksums enabled in file \"%s\"", fn);
293  }
294 
295  close(f);
296 }
static PgChecksumMode mode
Definition: pg_checksums.c:61
#define write(a, b, c)
Definition: win32.h:14
#define pg_log_error(...)
Definition: logging.h:80
static ControlFileData * ControlFile
Definition: pg_checksums.c:37
uint32 BlockNumber
Definition: block.h:31
static int64 files
Definition: pg_checksums.c:34
static bool showprogress
Definition: pg_checksums.c:42
#define PG_BINARY
Definition: c.h:1271
uint16 pd_checksum
Definition: bufpage.h:156
char data[BLCKSZ]
Definition: c.h:1141
unsigned short uint16
Definition: c.h:440
uint32 data_checksum_version
Definition: pg_control.h:220
static char * buf
Definition: pg_test_fsync.c:68
static bool verbose
Definition: pg_checksums.c:41
static void * fn(void *arg)
PageHeaderData * PageHeader
Definition: bufpage.h:166
#define Assert(condition)
Definition: c.h:804
static void header(const char *fmt,...) pg_attribute_printf(1
Definition: pg_regress.c:210
static int64 blocks
Definition: pg_checksums.c:35
static void progress_report(bool finished)
Definition: pg_checksums.c:128
static int64 badblocks
Definition: pg_checksums.c:36
#define PG_DATA_CHECKSUM_VERSION
Definition: bufpage.h:200
#define PageIsNew(page)
Definition: bufpage.h:229
int64 current_size
Definition: pg_checksums.c:69
#define close(a)
Definition: win32.h:12
uint16 pg_checksum_page(char *page, BlockNumber blkno)
#define read(a, b, c)
Definition: win32.h:13
#define pg_log_info(...)
Definition: logging.h:88

◆ skipfile()

static bool skipfile ( const char *  fn)
static

Definition at line 173 of file pg_checksums.c.

References exclude_list_item::match_prefix, and exclude_list_item::name.

Referenced by scan_directory().

174 {
175  int excludeIdx;
176 
177  for (excludeIdx = 0; skip[excludeIdx].name != NULL; excludeIdx++)
178  {
179  int cmplen = strlen(skip[excludeIdx].name);
180 
181  if (!skip[excludeIdx].match_prefix)
182  cmplen++;
183  if (strncmp(skip[excludeIdx].name, fn, cmplen) == 0)
184  return true;
185  }
186 
187  return false;
188 }
static const struct exclude_list_item skip[]
Definition: pg_checksums.c:112
static void * fn(void *arg)
const char * name
Definition: encode.c:515
const char * name
Definition: basebackup.c:141

◆ usage()

static void usage ( void  )
static

Definition at line 73 of file pg_checksums.c.

References _, exclude_list_item::match_prefix, exclude_list_item::name, printf, and progname.

Referenced by main().

74 {
75  printf(_("%s enables, disables, or verifies data checksums in a PostgreSQL database cluster.\n\n"), progname);
76  printf(_("Usage:\n"));
77  printf(_(" %s [OPTION]... [DATADIR]\n"), progname);
78  printf(_("\nOptions:\n"));
79  printf(_(" [-D, --pgdata=]DATADIR data directory\n"));
80  printf(_(" -c, --check check data checksums (default)\n"));
81  printf(_(" -d, --disable disable data checksums\n"));
82  printf(_(" -e, --enable enable data checksums\n"));
83  printf(_(" -f, --filenode=FILENODE check only relation with specified filenode\n"));
84  printf(_(" -N, --no-sync do not wait for changes to be written safely to disk\n"));
85  printf(_(" -P, --progress show progress information\n"));
86  printf(_(" -v, --verbose output verbose messages\n"));
87  printf(_(" -V, --version output version information, then exit\n"));
88  printf(_(" -?, --help show this help, then exit\n"));
89  printf(_("\nIf no data directory (DATADIR) is specified, "
90  "the environment variable PGDATA\nis used.\n\n"));
91  printf(_("Report bugs to <%s>.\n"), PACKAGE_BUGREPORT);
92  printf(_("%s home page: <%s>\n"), PACKAGE_NAME, PACKAGE_URL);
93 }
static const char * progname
Definition: pg_checksums.c:63
#define printf(...)
Definition: port.h:222
#define _(x)
Definition: elog.c:89

Variable Documentation

◆ badblocks

int64 badblocks = 0
static

Definition at line 36 of file pg_checksums.c.

Referenced by main(), and scan_file().

◆ blocks

int64 blocks = 0
static

◆ ControlFile

ControlFileData* ControlFile
static

Definition at line 37 of file pg_checksums.c.

◆ current_size

int64 current_size = 0

Definition at line 69 of file pg_checksums.c.

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

◆ do_sync

bool do_sync = true
static

Definition at line 40 of file pg_checksums.c.

Referenced by main().

◆ files

int64 files = 0
static

Definition at line 34 of file pg_checksums.c.

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

◆ last_progress_report

pg_time_t last_progress_report = 0
static

Definition at line 70 of file pg_checksums.c.

Referenced by progress_report().

◆ mode

Definition at line 61 of file pg_checksums.c.

Referenced by _allocAH(), _copyFunctionParameter(), _copyLockStmt(), _equalFunctionParameter(), _equalLockStmt(), be_lo_open(), bf_load(), 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_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(), lo_creat(), lo_open(), main(), open_target_file(), 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_lock_status(), pgp_s2k_fill(), pgp_set_s2k_mode(), pgp_set_text_mode(), pgtls_verify_peer_name_matches_certificate_guts(), raw_parser(), rj_load(), scan_file(), SyncRepQueueInsert(), SyncRepUpdateSyncStandbysDefined(), SyncRepWaitForLSN(), SyncRepWakeQueue(), and tarOpen().

◆ only_filenode

char* only_filenode = NULL
static

Definition at line 39 of file pg_checksums.c.

Referenced by main(), and scan_directory().

◆ progname

const char* progname
static

Definition at line 63 of file pg_checksums.c.

Referenced by main(), and usage().

◆ showprogress

bool showprogress = false
static

Definition at line 42 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 112 of file pg_checksums.c.

Referenced by array_replace_internal(), DefineVirtualRelation(), dependencies_clauselist_selectivity(), heap_hot_search_buffer(), initTrie(), and verify_heapam().

◆ total_size

int64 total_size = 0

Definition at line 68 of file pg_checksums.c.

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

◆ verbose

bool verbose = false
static

Definition at line 41 of file pg_checksums.c.

Referenced by main(), and scan_file().