1 /*-------------------------------------------------------------------------
5 * Private implementation of the archiver routines.
7 * See the headers to pg_restore for more details.
9 * Copyright (c) 2000, Philip Warner
10 * Rights are granted to use this software in any way so long
11 * as this notice is not removed.
13 * The author is not responsible for loss or damages that may
14 * result from its use.
18 * $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_archiver.c,v 1.171 2009/06/04 19:16:48 tgl Exp $
20 *-------------------------------------------------------------------------
23 #include "pg_backup_db.h"
24 #include "dumputils.h"
28 #include <sys/types.h>
35 #include "libpq/libpq-fs.h"
38 * Special exit values from worker children. We reserve 0 for normal
39 * success; 1 and other small values should be interpreted as crashes.
41 #define WORKER_CREATE_DONE 10
42 #define WORKER_INHIBIT_DATA 11
43 #define WORKER_IGNORED_ERRORS 12
46 * Unix uses exit to return result from worker child, so function is void.
47 * Windows thread result comes via function return.
50 #define parallel_restore_result void
52 #define parallel_restore_result DWORD
55 /* IDs for worker children are either PIDs or thread handles */
59 #define thandle HANDLE
62 typedef struct _restore_args
68 typedef struct _parallel_slot
78 static const char *modulename = gettext_noop("archiver");
81 static ArchiveHandle *_allocAH(const char *FileSpec, const ArchiveFormat fmt,
82 const int compression, ArchiveMode mode);
83 static void _getObjectDescription(PQExpBuffer buf, TocEntry *te,
85 static void _printTocEntry(ArchiveHandle *AH, TocEntry *te, RestoreOptions *ropt, bool isData, bool acl_pass);
88 static void _doSetFixedOutputState(ArchiveHandle *AH);
89 static void _doSetSessionAuth(ArchiveHandle *AH, const char *user);
90 static void _doSetWithOids(ArchiveHandle *AH, const bool withOids);
91 static void _reconnectToDB(ArchiveHandle *AH, const char *dbname);
92 static void _becomeUser(ArchiveHandle *AH, const char *user);
93 static void _becomeOwner(ArchiveHandle *AH, TocEntry *te);
94 static void _selectOutputSchema(ArchiveHandle *AH, const char *schemaName);
95 static void _selectTablespace(ArchiveHandle *AH, const char *tablespace);
96 static void processEncodingEntry(ArchiveHandle *AH, TocEntry *te);
97 static void processStdStringsEntry(ArchiveHandle *AH, TocEntry *te);
98 static teReqs _tocEntryRequired(TocEntry *te, RestoreOptions *ropt, bool include_acls);
99 static void _disableTriggersIfNecessary(ArchiveHandle *AH, TocEntry *te, RestoreOptions *ropt);
100 static void _enableTriggersIfNecessary(ArchiveHandle *AH, TocEntry *te, RestoreOptions *ropt);
101 static TocEntry *getTocEntryByDumpId(ArchiveHandle *AH, DumpId id);
102 static void _moveAfter(ArchiveHandle *AH, TocEntry *pos, TocEntry *te);
103 static int _discoverArchiveFormat(ArchiveHandle *AH);
105 static void dump_lo_buf(ArchiveHandle *AH);
106 static void _write_msg(const char *modulename, const char *fmt, va_list ap);
107 static void _die_horribly(ArchiveHandle *AH, const char *modulename, const char *fmt, va_list ap);
109 static void dumpTimestamp(ArchiveHandle *AH, const char *msg, time_t tim);
110 static OutputContext SetOutput(ArchiveHandle *AH, char *filename, int compression);
111 static void ResetOutput(ArchiveHandle *AH, OutputContext savedContext);
113 static int restore_toc_entry(ArchiveHandle *AH, TocEntry *te,
114 RestoreOptions *ropt, bool is_parallel);
115 static void restore_toc_entries_parallel(ArchiveHandle *AH);
116 static thandle spawn_restore(RestoreArgs *args);
117 static thandle reap_child(ParallelSlot *slots, int n_slots, int *work_status);
118 static bool work_in_progress(ParallelSlot *slots, int n_slots);
119 static int get_next_slot(ParallelSlot *slots, int n_slots);
120 static TocEntry *get_next_work_item(ArchiveHandle *AH,
121 TocEntry **first_unprocessed,
122 ParallelSlot *slots, int n_slots);
123 static parallel_restore_result parallel_restore(RestoreArgs *args);
124 static void mark_work_done(ArchiveHandle *AH, thandle worker, int status,
125 ParallelSlot *slots, int n_slots);
126 static void fix_dependencies(ArchiveHandle *AH);
127 static bool has_lock_conflicts(TocEntry *te1, TocEntry *te2);
128 static void repoint_table_dependencies(ArchiveHandle *AH,
129 DumpId tableId, DumpId tableDataId);
130 static void identify_locking_dependencies(TocEntry *te,
131 TocEntry **tocsByDumpId);
132 static void reduce_dependencies(ArchiveHandle *AH, TocEntry *te);
133 static void mark_create_done(ArchiveHandle *AH, TocEntry *te);
134 static void inhibit_data_for_failed_table(ArchiveHandle *AH, TocEntry *te);
135 static ArchiveHandle *CloneArchive(ArchiveHandle *AH);
136 static void DeCloneArchive(ArchiveHandle *AH);
142 * The objective it to make writing new formats and dumpers as simple
143 * as possible, if necessary at the expense of extra function calls etc.
148 /* Create a new archive */
151 CreateArchive(const char *FileSpec, const ArchiveFormat fmt,
152 const int compression, ArchiveMode mode)
155 ArchiveHandle *AH = _allocAH(FileSpec, fmt, compression, mode);
157 return (Archive *) AH;
160 /* Open an existing archive */
163 OpenArchive(const char *FileSpec, const ArchiveFormat fmt)
165 ArchiveHandle *AH = _allocAH(FileSpec, fmt, 0, archModeRead);
167 return (Archive *) AH;
172 CloseArchive(Archive *AHX)
175 ArchiveHandle *AH = (ArchiveHandle *) AHX;
177 (*AH->ClosePtr) (AH);
179 /* Close the output */
181 res = GZCLOSE(AH->OF);
182 else if (AH->OF != stdout)
183 res = fclose(AH->OF);
186 die_horribly(AH, modulename, "could not close output file: %s\n",
192 RestoreArchive(Archive *AHX, RestoreOptions *ropt)
194 ArchiveHandle *AH = (ArchiveHandle *) AHX;
200 AH->stage = STAGE_INITIALIZING;
203 * Check for nonsensical option combinations.
205 * NB: create+dropSchema is useless because if you're creating the DB,
206 * there's no need to drop individual items in it. Moreover, if we tried
207 * to do that then we'd issue the drops in the database initially
208 * connected to, not the one we will create, which is very bad...
210 if (ropt->create && ropt->dropSchema)
211 die_horribly(AH, modulename, "-C and -c are incompatible options\n");
214 * -1 is not compatible with -C, because we can't create a database
215 * inside a transaction block.
217 if (ropt->create && ropt->single_txn)
218 die_horribly(AH, modulename, "-C and -1 are incompatible options\n");
221 * Make sure we won't need (de)compression we haven't got
224 if (AH->compression != 0 && AH->PrintTocDataPtr != NULL)
226 for (te = AH->toc->next; te != AH->toc; te = te->next)
228 reqs = _tocEntryRequired(te, ropt, false);
229 if (te->hadDumper && (reqs & REQ_DATA) != 0)
230 die_horribly(AH, modulename, "cannot restore from compressed archive (compression not supported in this installation)\n");
236 * If we're using a DB connection, then connect it.
240 ahlog(AH, 1, "connecting to database for restore\n");
241 if (AH->version < K_VERS_1_3)
242 die_horribly(AH, modulename, "direct database connections are not supported in pre-1.3 archives\n");
244 /* XXX Should get this from the archive */
245 AHX->minRemoteVersion = 070100;
246 AHX->maxRemoteVersion = 999999;
248 ConnectDatabase(AHX, ropt->dbname,
249 ropt->pghost, ropt->pgport, ropt->username,
250 ropt->promptPassword);
253 * If we're talking to the DB directly, don't send comments since they
254 * obscure SQL when displaying errors
256 AH->noTocComments = 1;
260 * Work out if we have an implied data-only restore. This can happen if
261 * the dump was data only or if the user has used a toc list to exclude
262 * all of the schema data. All we do is look for schema entries - if none
263 * are found then we set the dataOnly flag.
265 * We could scan for wanted TABLE entries, but that is not the same as
266 * dataOnly. At this stage, it seems unnecessary (6-Mar-2001).
270 int impliedDataOnly = 1;
272 for (te = AH->toc->next; te != AH->toc; te = te->next)
274 reqs = _tocEntryRequired(te, ropt, true);
275 if ((reqs & REQ_SCHEMA) != 0)
276 { /* It's schema, and it's wanted */
283 ropt->dataOnly = impliedDataOnly;
284 ahlog(AH, 1, "implied data-only restore\n");
289 * Setup the output file if necessary.
291 if (ropt->filename || ropt->compression)
292 sav = SetOutput(AH, ropt->filename, ropt->compression);
294 ahprintf(AH, "--\n-- PostgreSQL database dump\n--\n\n");
296 if (AH->public.verbose)
297 dumpTimestamp(AH, "Started on", AH->createDate);
299 if (ropt->single_txn)
302 StartTransaction(AH);
304 ahprintf(AH, "BEGIN;\n\n");
308 * Establish important parameter values right away.
310 _doSetFixedOutputState(AH);
312 AH->stage = STAGE_PROCESSING;
315 * Drop the items at the start, in reverse order
317 if (ropt->dropSchema)
319 for (te = AH->toc->prev; te != AH->toc; te = te->prev)
323 reqs = _tocEntryRequired(te, ropt, false /* needn't drop ACLs */ );
324 if (((reqs & REQ_SCHEMA) != 0) && te->dropStmt)
326 /* We want the schema */
327 ahlog(AH, 1, "dropping %s %s\n", te->desc, te->tag);
328 /* Select owner and schema as necessary */
329 _becomeOwner(AH, te);
330 _selectOutputSchema(AH, te->namespace);
332 ahprintf(AH, "%s", te->dropStmt);
337 * _selectOutputSchema may have set currSchema to reflect the effect
338 * of a "SET search_path" command it emitted. However, by now we may
339 * have dropped that schema; or it might not have existed in the first
340 * place. In either case the effective value of search_path will not
341 * be what we think. Forcibly reset currSchema so that we will
342 * re-establish the search_path setting when needed (after creating
345 * If we treated users as pg_dump'able objects then we'd need to reset
349 free(AH->currSchema);
350 AH->currSchema = NULL;
354 * In serial mode, we now process each non-ACL TOC entry.
356 * In parallel mode, turn control over to the parallel-restore logic.
358 if (ropt->number_of_jobs > 1 && ropt->useDB)
359 restore_toc_entries_parallel(AH);
362 for (te = AH->toc->next; te != AH->toc; te = te->next)
363 (void) restore_toc_entry(AH, te, ropt, false);
367 * Scan TOC again to output ownership commands and ACLs
369 for (te = AH->toc->next; te != AH->toc; te = te->next)
373 /* Work out what, if anything, we want from this entry */
374 reqs = _tocEntryRequired(te, ropt, true);
376 if ((reqs & REQ_SCHEMA) != 0) /* We want the schema */
378 ahlog(AH, 1, "setting owner and privileges for %s %s\n",
380 _printTocEntry(AH, te, ropt, false, true);
384 if (ropt->single_txn)
387 CommitTransaction(AH);
389 ahprintf(AH, "COMMIT;\n\n");
392 if (AH->public.verbose)
393 dumpTimestamp(AH, "Completed on", time(NULL));
395 ahprintf(AH, "--\n-- PostgreSQL database dump complete\n--\n\n");
398 * Clean up & we're done.
400 AH->stage = STAGE_FINALIZING;
402 if (ropt->filename || ropt->compression)
403 ResetOutput(AH, sav);
407 PQfinish(AH->connection);
408 AH->connection = NULL;
413 * Restore a single TOC item. Used in both parallel and non-parallel restore;
414 * is_parallel is true if we are in a worker child process.
416 * Returns 0 normally, but WORKER_CREATE_DONE or WORKER_INHIBIT_DATA if
417 * the parallel parent has to make the corresponding status update.
420 restore_toc_entry(ArchiveHandle *AH, TocEntry *te,
421 RestoreOptions *ropt, bool is_parallel)
429 /* Work out what, if anything, we want from this entry */
430 reqs = _tocEntryRequired(te, ropt, false);
432 /* Dump any relevant dump warnings to stderr */
433 if (!ropt->suppressDumpWarnings && strcmp(te->desc, "WARNING") == 0)
435 if (!ropt->dataOnly && te->defn != NULL && strlen(te->defn) != 0)
436 write_msg(modulename, "warning from original dump file: %s\n", te->defn);
437 else if (te->copyStmt != NULL && strlen(te->copyStmt) != 0)
438 write_msg(modulename, "warning from original dump file: %s\n", te->copyStmt);
443 if ((reqs & REQ_SCHEMA) != 0) /* We want the schema */
445 ahlog(AH, 1, "creating %s %s\n", te->desc, te->tag);
447 _printTocEntry(AH, te, ropt, false, false);
450 if (strcmp(te->desc, "TABLE") == 0)
452 if (AH->lastErrorTE == te)
455 * We failed to create the table.
456 * If --no-data-for-failed-tables was given,
457 * mark the corresponding TABLE DATA to be ignored.
459 * In the parallel case this must be done in the parent,
460 * so we just set the return value.
462 if (ropt->noDataForFailedTables)
465 retval = WORKER_INHIBIT_DATA;
467 inhibit_data_for_failed_table(AH, te);
473 * We created the table successfully. Mark the
474 * corresponding TABLE DATA for possible truncation.
476 * In the parallel case this must be done in the parent,
477 * so we just set the return value.
480 retval = WORKER_CREATE_DONE;
482 mark_create_done(AH, te);
486 /* If we created a DB, connect to it... */
487 if (strcmp(te->desc, "DATABASE") == 0)
489 ahlog(AH, 1, "connecting to new database \"%s\"\n", te->tag);
490 _reconnectToDB(AH, te->tag);
491 ropt->dbname = strdup(te->tag);
496 * If we have a data component, then process it
498 if ((reqs & REQ_DATA) != 0)
501 * hadDumper will be set if there is genuine data component for
502 * this node. Otherwise, we need to check the defn field for
503 * statements that need to be executed in data-only restores.
508 * If we can output the data, then restore it.
510 if (AH->PrintTocDataPtr != NULL && (reqs & REQ_DATA) != 0)
512 _printTocEntry(AH, te, ropt, true, false);
514 if (strcmp(te->desc, "BLOBS") == 0 ||
515 strcmp(te->desc, "BLOB COMMENTS") == 0)
517 ahlog(AH, 1, "restoring %s\n", te->desc);
519 _selectOutputSchema(AH, "pg_catalog");
521 (*AH->PrintTocDataPtr) (AH, te, ropt);
525 _disableTriggersIfNecessary(AH, te, ropt);
527 /* Select owner and schema as necessary */
528 _becomeOwner(AH, te);
529 _selectOutputSchema(AH, te->namespace);
531 ahlog(AH, 1, "restoring data for table \"%s\"\n",
535 * In parallel restore, if we created the table earlier
536 * in the run then we wrap the COPY in a transaction and
537 * precede it with a TRUNCATE. If archiving is not on
538 * this prevents WAL-logging the COPY. This obtains a
539 * speedup similar to that from using single_txn mode
540 * in non-parallel restores.
542 if (is_parallel && te->created)
545 * Parallel restore is always talking directly to a
546 * server, so no need to see if we should issue BEGIN.
548 StartTransaction(AH);
551 * If the server version is >= 8.4, make sure we issue
552 * TRUNCATE with ONLY so that child tables are not
555 ahprintf(AH, "TRUNCATE TABLE %s%s;\n\n",
556 (PQserverVersion(AH->connection) >= 80400 ?
562 * If we have a copy statement, use it. As of V1.3,
563 * these are separate to allow easy import from
564 * withing a database connection. Pre 1.3 archives can
565 * not use DB connections and are sent to output only.
567 * For V1.3+, the table data MUST have a copy
568 * statement so that we can go into appropriate mode
571 if (te->copyStmt && strlen(te->copyStmt) > 0)
573 ahprintf(AH, "%s", te->copyStmt);
574 AH->writingCopyData = true;
577 (*AH->PrintTocDataPtr) (AH, te, ropt);
579 AH->writingCopyData = false;
581 /* close out the transaction started above */
582 if (is_parallel && te->created)
583 CommitTransaction(AH);
585 _enableTriggersIfNecessary(AH, te, ropt);
589 else if (!defnDumped)
591 /* If we haven't already dumped the defn part, do so now */
592 ahlog(AH, 1, "executing %s %s\n", te->desc, te->tag);
593 _printTocEntry(AH, te, ropt, false, false);
601 * Allocate a new RestoreOptions block.
602 * This is mainly so we can initialize it, but also for future expansion,
605 NewRestoreOptions(void)
607 RestoreOptions *opts;
609 opts = (RestoreOptions *) calloc(1, sizeof(RestoreOptions));
611 /* set any fields that shouldn't default to zeroes */
612 opts->format = archUnknown;
613 opts->promptPassword = TRI_DEFAULT;
619 _disableTriggersIfNecessary(ArchiveHandle *AH, TocEntry *te, RestoreOptions *ropt)
621 /* This hack is only needed in a data-only restore */
622 if (!ropt->dataOnly || !ropt->disable_triggers)
625 ahlog(AH, 1, "disabling triggers for %s\n", te->tag);
628 * Become superuser if possible, since they are the only ones who can
629 * disable constraint triggers. If -S was not given, assume the initial
630 * user identity is a superuser. (XXX would it be better to become the
633 _becomeUser(AH, ropt->superuser);
638 _selectOutputSchema(AH, te->namespace);
640 ahprintf(AH, "ALTER TABLE %s DISABLE TRIGGER ALL;\n\n",
645 _enableTriggersIfNecessary(ArchiveHandle *AH, TocEntry *te, RestoreOptions *ropt)
647 /* This hack is only needed in a data-only restore */
648 if (!ropt->dataOnly || !ropt->disable_triggers)
651 ahlog(AH, 1, "enabling triggers for %s\n", te->tag);
654 * Become superuser if possible, since they are the only ones who can
655 * disable constraint triggers. If -S was not given, assume the initial
656 * user identity is a superuser. (XXX would it be better to become the
659 _becomeUser(AH, ropt->superuser);
664 _selectOutputSchema(AH, te->namespace);
666 ahprintf(AH, "ALTER TABLE %s ENABLE TRIGGER ALL;\n\n",
671 * This is a routine that is part of the dumper interface, hence the 'Archive*' parameter.
676 WriteData(Archive *AHX, const void *data, size_t dLen)
678 ArchiveHandle *AH = (ArchiveHandle *) AHX;
681 die_horribly(AH, modulename, "internal error -- WriteData cannot be called outside the context of a DataDumper routine\n");
683 return (*AH->WriteDataPtr) (AH, data, dLen);
687 * Create a new TOC entry. The TOC was designed as a TOC, but is now the
688 * repository for all metadata. But the name has stuck.
693 ArchiveEntry(Archive *AHX,
694 CatalogId catalogId, DumpId dumpId,
696 const char *namespace,
697 const char *tablespace,
698 const char *owner, bool withOids,
699 const char *desc, teSection section,
701 const char *dropStmt, const char *copyStmt,
702 const DumpId *deps, int nDeps,
703 DataDumperPtr dumpFn, void *dumpArg)
705 ArchiveHandle *AH = (ArchiveHandle *) AHX;
708 newToc = (TocEntry *) calloc(1, sizeof(TocEntry));
710 die_horribly(AH, modulename, "out of memory\n");
713 if (dumpId > AH->maxDumpId)
714 AH->maxDumpId = dumpId;
716 newToc->prev = AH->toc->prev;
717 newToc->next = AH->toc;
718 AH->toc->prev->next = newToc;
719 AH->toc->prev = newToc;
721 newToc->catalogId = catalogId;
722 newToc->dumpId = dumpId;
723 newToc->section = section;
725 newToc->tag = strdup(tag);
726 newToc->namespace = namespace ? strdup(namespace) : NULL;
727 newToc->tablespace = tablespace ? strdup(tablespace) : NULL;
728 newToc->owner = strdup(owner);
729 newToc->withOids = withOids;
730 newToc->desc = strdup(desc);
731 newToc->defn = strdup(defn);
732 newToc->dropStmt = strdup(dropStmt);
733 newToc->copyStmt = copyStmt ? strdup(copyStmt) : NULL;
737 newToc->dependencies = (DumpId *) malloc(nDeps * sizeof(DumpId));
738 memcpy(newToc->dependencies, deps, nDeps * sizeof(DumpId));
739 newToc->nDeps = nDeps;
743 newToc->dependencies = NULL;
747 newToc->dataDumper = dumpFn;
748 newToc->dataDumperArg = dumpArg;
749 newToc->hadDumper = dumpFn ? true : false;
751 newToc->formatData = NULL;
753 if (AH->ArchiveEntryPtr !=NULL)
754 (*AH->ArchiveEntryPtr) (AH, newToc);
759 PrintTOCSummary(Archive *AHX, RestoreOptions *ropt)
761 ArchiveHandle *AH = (ArchiveHandle *) AHX;
767 sav = SetOutput(AH, ropt->filename, 0 /* no compression */ );
769 ahprintf(AH, ";\n; Archive created at %s", ctime(&AH->createDate));
770 ahprintf(AH, "; dbname: %s\n; TOC Entries: %d\n; Compression: %d\n",
771 AH->archdbname, AH->tocCount, AH->compression);
788 ahprintf(AH, "; Dump Version: %d.%d-%d\n", AH->vmaj, AH->vmin, AH->vrev);
789 ahprintf(AH, "; Format: %s\n", fmtName);
790 ahprintf(AH, "; Integer: %d bytes\n", (int) AH->intSize);
791 ahprintf(AH, "; Offset: %d bytes\n", (int) AH->offSize);
792 if (AH->archiveRemoteVersion)
793 ahprintf(AH, "; Dumped from database version: %s\n",
794 AH->archiveRemoteVersion);
795 if (AH->archiveDumpVersion)
796 ahprintf(AH, "; Dumped by pg_dump version: %s\n",
797 AH->archiveDumpVersion);
799 ahprintf(AH, ";\n;\n; Selected TOC Entries:\n;\n");
801 for (te = AH->toc->next; te != AH->toc; te = te->next)
803 if (ropt->verbose || _tocEntryRequired(te, ropt, true) != 0)
804 ahprintf(AH, "%d; %u %u %s %s %s %s\n", te->dumpId,
805 te->catalogId.tableoid, te->catalogId.oid,
806 te->desc, te->namespace ? te->namespace : "-",
808 if (ropt->verbose && te->nDeps > 0)
812 ahprintf(AH, ";\tdepends on:");
813 for (i = 0; i < te->nDeps; i++)
814 ahprintf(AH, " %d", te->dependencies[i]);
820 ResetOutput(AH, sav);
827 /* Called by a dumper to signal start of a BLOB */
829 StartBlob(Archive *AHX, Oid oid)
831 ArchiveHandle *AH = (ArchiveHandle *) AHX;
833 if (!AH->StartBlobPtr)
834 die_horribly(AH, modulename, "large-object output not supported in chosen format\n");
836 (*AH->StartBlobPtr) (AH, AH->currToc, oid);
841 /* Called by a dumper to signal end of a BLOB */
843 EndBlob(Archive *AHX, Oid oid)
845 ArchiveHandle *AH = (ArchiveHandle *) AHX;
848 (*AH->EndBlobPtr) (AH, AH->currToc, oid);
858 * Called by a format handler before any blobs are restored
861 StartRestoreBlobs(ArchiveHandle *AH)
863 if (!AH->ropt->single_txn)
866 StartTransaction(AH);
868 ahprintf(AH, "BEGIN;\n\n");
875 * Called by a format handler after all blobs are restored
878 EndRestoreBlobs(ArchiveHandle *AH)
880 if (!AH->ropt->single_txn)
883 CommitTransaction(AH);
885 ahprintf(AH, "COMMIT;\n\n");
888 ahlog(AH, 1, ngettext("restored %d large object\n",
889 "restored %d large objects\n",
896 * Called by a format handler to initiate restoration of a blob
899 StartRestoreBlob(ArchiveHandle *AH, Oid oid)
905 /* Initialize the LO Buffer */
908 ahlog(AH, 2, "restoring large object with OID %u\n", oid);
912 loOid = lo_create(AH->connection, oid);
913 if (loOid == 0 || loOid != oid)
914 die_horribly(AH, modulename, "could not create large object %u\n",
917 AH->loFd = lo_open(AH->connection, oid, INV_WRITE);
919 die_horribly(AH, modulename, "could not open large object\n");
923 ahprintf(AH, "SELECT lo_open(lo_create(%u), %d);\n", oid, INV_WRITE);
930 EndRestoreBlob(ArchiveHandle *AH, Oid oid)
932 if (AH->lo_buf_used > 0)
934 /* Write remaining bytes from the LO buffer */
942 lo_close(AH->connection, AH->loFd);
947 ahprintf(AH, "SELECT lo_close(0);\n\n");
952 * Sorting and Reordering
956 SortTocFromFile(Archive *AHX, RestoreOptions *ropt)
958 ArchiveHandle *AH = (ArchiveHandle *) AHX;
967 /* Allocate space for the 'wanted' array, and init it */
968 ropt->idWanted = (bool *) malloc(sizeof(bool) * AH->maxDumpId);
969 memset(ropt->idWanted, 0, sizeof(bool) * AH->maxDumpId);
971 /* Set prev entry as head of list */
975 fh = fopen(ropt->tocFile, PG_BINARY_R);
977 die_horribly(AH, modulename, "could not open TOC file \"%s\": %s\n",
978 ropt->tocFile, strerror(errno));
980 while (fgets(buf, sizeof(buf), fh) != NULL)
982 /* Truncate line at comment, if any */
983 cmnt = strchr(buf, ';');
987 /* Ignore if all blank */
988 if (strspn(buf, " \t\r") == strlen(buf))
991 /* Get an ID, check it's valid and not already seen */
992 id = strtol(buf, &endptr, 10);
993 if (endptr == buf || id <= 0 || id > AH->maxDumpId ||
994 ropt->idWanted[id - 1])
996 write_msg(modulename, "WARNING: line ignored: %s\n", buf);
1000 /* Find TOC entry */
1001 te = getTocEntryByDumpId(AH, id);
1003 die_horribly(AH, modulename, "could not find entry for ID %d\n",
1006 ropt->idWanted[id - 1] = true;
1008 _moveAfter(AH, tePrev, te);
1012 if (fclose(fh) != 0)
1013 die_horribly(AH, modulename, "could not close TOC file: %s\n",
1018 * Set up a dummy ID filter that selects all dump IDs
1021 InitDummyWantedList(Archive *AHX, RestoreOptions *ropt)
1023 ArchiveHandle *AH = (ArchiveHandle *) AHX;
1025 /* Allocate space for the 'wanted' array, and init it to 1's */
1026 ropt->idWanted = (bool *) malloc(sizeof(bool) * AH->maxDumpId);
1027 memset(ropt->idWanted, 1, sizeof(bool) * AH->maxDumpId);
1030 /**********************
1031 * 'Convenience functions that look like standard IO functions
1032 * for writing data when in dump mode.
1033 **********************/
1037 archputs(const char *s, Archive *AH)
1039 return WriteData(AH, s, strlen(s));
1044 archprintf(Archive *AH, const char *fmt,...)
1048 int bSize = strlen(fmt) + 256;
1052 * This is paranoid: deal with the possibility that vsnprintf is willing
1053 * to ignore trailing null or returns > 0 even if string does not fit. It
1054 * may be the case that it returns cnt = bufsize
1056 while (cnt < 0 || cnt >= (bSize - 1))
1061 p = (char *) malloc(bSize);
1063 exit_horribly(AH, modulename, "out of memory\n");
1065 cnt = vsnprintf(p, bSize, fmt, ap);
1068 WriteData(AH, p, cnt);
1074 /*******************************
1075 * Stuff below here should be 'private' to the archiver routines
1076 *******************************/
1078 static OutputContext
1079 SetOutput(ArchiveHandle *AH, char *filename, int compression)
1084 /* Replace the AH output file handle */
1086 sav.gzOut = AH->gzOut;
1091 fn = fileno(AH->FH);
1095 filename = AH->fSpec;
1098 fn = fileno(stdout);
1100 /* If compression explicitly requested, use gzopen */
1102 if (compression != 0)
1106 /* Don't use PG_BINARY_x since this is zlib */
1107 sprintf(fmode, "wb%d", compression);
1109 AH->OF = gzdopen(dup(fn), fmode);
1111 AH->OF = gzopen(filename, fmode);
1117 if (AH->mode == archModeAppend)
1120 AH->OF = fdopen(dup(fn), PG_BINARY_A);
1122 AH->OF = fopen(filename, PG_BINARY_A);
1127 AH->OF = fdopen(dup(fn), PG_BINARY_W);
1129 AH->OF = fopen(filename, PG_BINARY_W);
1137 die_horribly(AH, modulename, "could not open output file \"%s\": %s\n",
1138 filename, strerror(errno));
1140 die_horribly(AH, modulename, "could not open output file: %s\n",
1148 ResetOutput(ArchiveHandle *AH, OutputContext sav)
1153 res = GZCLOSE(AH->OF);
1155 res = fclose(AH->OF);
1158 die_horribly(AH, modulename, "could not close output file: %s\n",
1161 AH->gzOut = sav.gzOut;
1168 * Print formatted text to the output file (usually stdout).
1171 ahprintf(ArchiveHandle *AH, const char *fmt,...)
1175 int bSize = strlen(fmt) + 256; /* Should be enough */
1179 * This is paranoid: deal with the possibility that vsnprintf is willing
1180 * to ignore trailing null
1184 * or returns > 0 even if string does not fit. It may be the case that it
1185 * returns cnt = bufsize
1187 while (cnt < 0 || cnt >= (bSize - 1))
1192 p = (char *) malloc(bSize);
1194 die_horribly(AH, modulename, "out of memory\n");
1196 cnt = vsnprintf(p, bSize, fmt, ap);
1199 ahwrite(p, 1, cnt, AH);
1205 ahlog(ArchiveHandle *AH, int level, const char *fmt,...)
1209 if (AH->debugLevel < level && (!AH->public.verbose || level > 1))
1213 _write_msg(NULL, fmt, ap);
1218 * Single place for logic which says 'We are restoring to a direct DB connection'.
1221 RestoringToDB(ArchiveHandle *AH)
1223 return (AH->ropt && AH->ropt->useDB && AH->connection);
1227 * Dump the current contents of the LO data buffer while writing a BLOB
1230 dump_lo_buf(ArchiveHandle *AH)
1236 res = lo_write(AH->connection, AH->loFd, AH->lo_buf, AH->lo_buf_used);
1237 ahlog(AH, 5, ngettext("wrote %lu byte of large object data (result = %lu)\n",
1238 "wrote %lu bytes of large object data (result = %lu)\n",
1240 (unsigned long) AH->lo_buf_used, (unsigned long) res);
1241 if (res != AH->lo_buf_used)
1242 die_horribly(AH, modulename,
1243 "could not write to large object (result: %lu, expected: %lu)\n",
1244 (unsigned long) res, (unsigned long) AH->lo_buf_used);
1251 str = PQescapeBytea((const unsigned char *) AH->lo_buf,
1252 AH->lo_buf_used, &len);
1254 die_horribly(AH, modulename, "out of memory\n");
1256 /* Hack: turn off writingBlob so ahwrite doesn't recurse to here */
1257 AH->writingBlob = 0;
1258 ahprintf(AH, "SELECT lowrite(0, '%s');\n", str);
1259 AH->writingBlob = 1;
1263 AH->lo_buf_used = 0;
1268 * Write buffer to the output file (usually stdout). This is user for
1269 * outputting 'restore' scripts etc. It is even possible for an archive
1270 * format to create a custom output routine to 'fake' a restore if it
1271 * wants to generate a script (see TAR output).
1274 ahwrite(const void *ptr, size_t size, size_t nmemb, ArchiveHandle *AH)
1278 if (AH->writingBlob)
1280 size_t remaining = size * nmemb;
1282 while (AH->lo_buf_used + remaining > AH->lo_buf_size)
1284 size_t avail = AH->lo_buf_size - AH->lo_buf_used;
1286 memcpy((char *) AH->lo_buf + AH->lo_buf_used, ptr, avail);
1287 ptr = (const void *) ((const char *) ptr + avail);
1289 AH->lo_buf_used += avail;
1293 memcpy((char *) AH->lo_buf + AH->lo_buf_used, ptr, remaining);
1294 AH->lo_buf_used += remaining;
1296 return size * nmemb;
1300 res = GZWRITE((void *) ptr, size, nmemb, AH->OF);
1301 if (res != (nmemb * size))
1302 die_horribly(AH, modulename, "could not write to output file: %s\n", strerror(errno));
1305 else if (AH->CustomOutPtr)
1307 res = AH->CustomOutPtr (AH, ptr, size * nmemb);
1309 if (res != (nmemb * size))
1310 die_horribly(AH, modulename, "could not write to custom output routine\n");
1316 * If we're doing a restore, and it's direct to DB, and we're
1317 * connected then send it to the DB.
1319 if (RestoringToDB(AH))
1320 return ExecuteSqlCommandBuf(AH, (void *) ptr, size * nmemb); /* Always 1, currently */
1323 res = fwrite((void *) ptr, size, nmemb, AH->OF);
1325 die_horribly(AH, modulename, "could not write to output file: %s\n",
1332 /* Common exit code */
1334 _write_msg(const char *modulename, const char *fmt, va_list ap)
1337 fprintf(stderr, "%s: [%s] ", progname, _(modulename));
1339 fprintf(stderr, "%s: ", progname);
1340 vfprintf(stderr, _(fmt), ap);
1344 write_msg(const char *modulename, const char *fmt,...)
1349 _write_msg(modulename, fmt, ap);
1355 _die_horribly(ArchiveHandle *AH, const char *modulename, const char *fmt, va_list ap)
1357 _write_msg(modulename, fmt, ap);
1361 if (AH->public.verbose)
1362 write_msg(NULL, "*** aborted because of error\n");
1364 PQfinish(AH->connection);
1372 exit_horribly(Archive *AH, const char *modulename, const char *fmt,...)
1377 _die_horribly((ArchiveHandle *) AH, modulename, fmt, ap);
1381 /* Archiver use (just different arg declaration) */
1383 die_horribly(ArchiveHandle *AH, const char *modulename, const char *fmt,...)
1388 _die_horribly(AH, modulename, fmt, ap);
1392 /* on some error, we may decide to go on... */
1394 warn_or_die_horribly(ArchiveHandle *AH,
1395 const char *modulename, const char *fmt,...)
1403 /* Do nothing special */
1406 case STAGE_INITIALIZING:
1407 if (AH->stage != AH->lastErrorStage)
1408 write_msg(modulename, "Error while INITIALIZING:\n");
1411 case STAGE_PROCESSING:
1412 if (AH->stage != AH->lastErrorStage)
1413 write_msg(modulename, "Error while PROCESSING TOC:\n");
1416 case STAGE_FINALIZING:
1417 if (AH->stage != AH->lastErrorStage)
1418 write_msg(modulename, "Error while FINALIZING:\n");
1421 if (AH->currentTE != NULL && AH->currentTE != AH->lastErrorTE)
1423 write_msg(modulename, "Error from TOC entry %d; %u %u %s %s %s\n",
1424 AH->currentTE->dumpId,
1425 AH->currentTE->catalogId.tableoid, AH->currentTE->catalogId.oid,
1426 AH->currentTE->desc, AH->currentTE->tag, AH->currentTE->owner);
1428 AH->lastErrorStage = AH->stage;
1429 AH->lastErrorTE = AH->currentTE;
1432 if (AH->public.exit_on_error)
1433 _die_horribly(AH, modulename, fmt, ap);
1436 _write_msg(modulename, fmt, ap);
1437 AH->public.n_errors++;
1443 _moveAfter(ArchiveHandle *AH, TocEntry *pos, TocEntry *te)
1445 te->prev->next = te->next;
1446 te->next->prev = te->prev;
1449 te->next = pos->next;
1451 pos->next->prev = te;
1458 _moveBefore(ArchiveHandle *AH, TocEntry *pos, TocEntry *te)
1460 te->prev->next = te->next;
1461 te->next->prev = te->prev;
1463 te->prev = pos->prev;
1465 pos->prev->next = te;
1471 getTocEntryByDumpId(ArchiveHandle *AH, DumpId id)
1475 for (te = AH->toc->next; te != AH->toc; te = te->next)
1477 if (te->dumpId == id)
1484 TocIDRequired(ArchiveHandle *AH, DumpId id, RestoreOptions *ropt)
1486 TocEntry *te = getTocEntryByDumpId(AH, id);
1491 return _tocEntryRequired(te, ropt, true);
1495 WriteOffset(ArchiveHandle *AH, pgoff_t o, int wasSet)
1500 (*AH->WriteBytePtr) (AH, wasSet);
1502 /* Write out pgoff_t smallest byte first, prevents endian mismatch */
1503 for (off = 0; off < sizeof(pgoff_t); off++)
1505 (*AH->WriteBytePtr) (AH, o & 0xFF);
1508 return sizeof(pgoff_t) + 1;
1512 ReadOffset(ArchiveHandle *AH, pgoff_t * o)
1518 /* Initialize to zero */
1521 /* Check for old version */
1522 if (AH->version < K_VERS_1_7)
1524 /* Prior versions wrote offsets using WriteInt */
1526 /* -1 means not set */
1528 return K_OFFSET_POS_NOT_SET;
1530 return K_OFFSET_NO_DATA;
1532 /* Cast to pgoff_t because it was written as an int. */
1534 return K_OFFSET_POS_SET;
1538 * Read the flag indicating the state of the data pointer. Check if valid
1541 * This used to be handled by a negative or zero pointer, now we use an
1542 * extra byte specifically for the state.
1544 offsetFlg = (*AH->ReadBytePtr) (AH) & 0xFF;
1548 case K_OFFSET_POS_NOT_SET:
1549 case K_OFFSET_NO_DATA:
1550 case K_OFFSET_POS_SET:
1555 die_horribly(AH, modulename, "unexpected data offset flag %d\n", offsetFlg);
1561 for (off = 0; off < AH->offSize; off++)
1563 if (off < sizeof(pgoff_t))
1564 *o |= ((pgoff_t) ((*AH->ReadBytePtr) (AH))) << (off * 8);
1567 if ((*AH->ReadBytePtr) (AH) != 0)
1568 die_horribly(AH, modulename, "file offset in dump file is too large\n");
1576 WriteInt(ArchiveHandle *AH, int i)
1581 * This is a bit yucky, but I don't want to make the binary format very
1582 * dependent on representation, and not knowing much about it, I write out
1583 * a sign byte. If you change this, don't forget to change the file
1584 * version #, and modify readInt to read the new format AS WELL AS the old
1591 (*AH->WriteBytePtr) (AH, 1);
1595 (*AH->WriteBytePtr) (AH, 0);
1597 for (b = 0; b < AH->intSize; b++)
1599 (*AH->WriteBytePtr) (AH, i & 0xFF);
1603 return AH->intSize + 1;
1607 ReadInt(ArchiveHandle *AH)
1612 int sign = 0; /* Default positive */
1615 if (AH->version > K_VERS_1_0)
1616 /* Read a sign byte */
1617 sign = (*AH->ReadBytePtr) (AH);
1619 for (b = 0; b < AH->intSize; b++)
1621 bv = (*AH->ReadBytePtr) (AH) & 0xFF;
1623 res = res + (bv << bitShift);
1634 WriteStr(ArchiveHandle *AH, const char *c)
1640 res = WriteInt(AH, strlen(c));
1641 res += (*AH->WriteBufPtr) (AH, c, strlen(c));
1644 res = WriteInt(AH, -1);
1650 ReadStr(ArchiveHandle *AH)
1660 buf = (char *) malloc(l + 1);
1662 die_horribly(AH, modulename, "out of memory\n");
1664 if ((*AH->ReadBufPtr) (AH, (void *) buf, l) != l)
1665 die_horribly(AH, modulename, "unexpected end of file\n");
1674 _discoverArchiveFormat(ArchiveHandle *AH)
1677 char sig[6]; /* More than enough */
1682 write_msg(modulename, "attempting to ascertain archive format\n");
1686 free(AH->lookahead);
1688 AH->lookaheadSize = 512;
1689 AH->lookahead = calloc(1, 512);
1690 AH->lookaheadLen = 0;
1691 AH->lookaheadPos = 0;
1696 fh = fopen(AH->fSpec, PG_BINARY_R);
1698 die_horribly(AH, modulename, "could not open input file \"%s\": %s\n",
1699 AH->fSpec, strerror(errno));
1705 die_horribly(AH, modulename, "could not open input file: %s\n",
1709 cnt = fread(sig, 1, 5, fh);
1714 die_horribly(AH, modulename, "could not read input file: %s\n", strerror(errno));
1716 die_horribly(AH, modulename, "input file is too short (read %lu, expected 5)\n",
1717 (unsigned long) cnt);
1720 /* Save it, just in case we need it later */
1721 strncpy(&AH->lookahead[0], sig, 5);
1722 AH->lookaheadLen = 5;
1724 if (strncmp(sig, "PGDMP", 5) == 0)
1726 AH->vmaj = fgetc(fh);
1727 AH->vmin = fgetc(fh);
1729 /* Save these too... */
1730 AH->lookahead[AH->lookaheadLen++] = AH->vmaj;
1731 AH->lookahead[AH->lookaheadLen++] = AH->vmin;
1733 /* Check header version; varies from V1.0 */
1734 if (AH->vmaj > 1 || ((AH->vmaj == 1) && (AH->vmin > 0))) /* Version > 1.0 */
1736 AH->vrev = fgetc(fh);
1737 AH->lookahead[AH->lookaheadLen++] = AH->vrev;
1742 /* Make a convenient integer <maj><min><rev>00 */
1743 AH->version = ((AH->vmaj * 256 + AH->vmin) * 256 + AH->vrev) * 256 + 0;
1745 AH->intSize = fgetc(fh);
1746 AH->lookahead[AH->lookaheadLen++] = AH->intSize;
1748 if (AH->version >= K_VERS_1_7)
1750 AH->offSize = fgetc(fh);
1751 AH->lookahead[AH->lookaheadLen++] = AH->offSize;
1754 AH->offSize = AH->intSize;
1756 AH->format = fgetc(fh);
1757 AH->lookahead[AH->lookaheadLen++] = AH->format;
1762 * *Maybe* we have a tar archive format file... So, read first 512
1765 cnt = fread(&AH->lookahead[AH->lookaheadLen], 1, 512 - AH->lookaheadLen, fh);
1766 AH->lookaheadLen += cnt;
1768 if (AH->lookaheadLen != 512)
1769 die_horribly(AH, modulename, "input file does not appear to be a valid archive (too short?)\n");
1771 if (!isValidTarHeader(AH->lookahead))
1772 die_horribly(AH, modulename, "input file does not appear to be a valid archive\n");
1774 AH->format = archTar;
1777 /* If we can't seek, then mark the header as read */
1778 if (fseeko(fh, 0, SEEK_SET) != 0)
1781 * NOTE: Formats that use the lookahead buffer can unset this in their
1787 AH->lookaheadLen = 0; /* Don't bother since we've reset the file */
1789 /* Close the file */
1791 if (fclose(fh) != 0)
1792 die_horribly(AH, modulename, "could not close input file: %s\n",
1800 * Allocate an archive handle
1802 static ArchiveHandle *
1803 _allocAH(const char *FileSpec, const ArchiveFormat fmt,
1804 const int compression, ArchiveMode mode)
1809 write_msg(modulename, "allocating AH for %s, format %d\n", FileSpec, fmt);
1812 AH = (ArchiveHandle *) calloc(1, sizeof(ArchiveHandle));
1814 die_horribly(AH, modulename, "out of memory\n");
1816 /* AH->debugLevel = 100; */
1818 AH->vmaj = K_VERS_MAJOR;
1819 AH->vmin = K_VERS_MINOR;
1820 AH->vrev = K_VERS_REV;
1822 /* initialize for backwards compatible string processing */
1823 AH->public.encoding = 0; /* PG_SQL_ASCII */
1824 AH->public.std_strings = false;
1826 /* sql error handling */
1827 AH->public.exit_on_error = true;
1828 AH->public.n_errors = 0;
1830 AH->createDate = time(NULL);
1832 AH->intSize = sizeof(int);
1833 AH->offSize = sizeof(pgoff_t);
1836 AH->fSpec = strdup(FileSpec);
1839 * Not used; maybe later....
1841 * AH->workDir = strdup(FileSpec); for(i=strlen(FileSpec) ; i > 0 ;
1842 * i--) if (AH->workDir[i-1] == '/')
1848 AH->currUser = NULL; /* unknown */
1849 AH->currSchema = NULL; /* ditto */
1850 AH->currTablespace = NULL; /* ditto */
1851 AH->currWithOids = -1; /* force SET */
1853 AH->toc = (TocEntry *) calloc(1, sizeof(TocEntry));
1855 die_horribly(AH, modulename, "out of memory\n");
1857 AH->toc->next = AH->toc;
1858 AH->toc->prev = AH->toc;
1861 AH->compression = compression;
1863 AH->pgCopyBuf = createPQExpBuffer();
1864 AH->sqlBuf = createPQExpBuffer();
1866 /* Open stdout with no compression for AH output handle */
1871 * On Windows, we need to use binary mode to read/write non-text archive
1872 * formats. Force stdin/stdout into binary mode if that is what we are
1876 if (fmt != archNull &&
1877 (AH->fSpec == NULL || strcmp(AH->fSpec, "") == 0))
1879 if (mode == archModeWrite)
1880 setmode(fileno(stdout), O_BINARY);
1882 setmode(fileno(stdin), O_BINARY);
1886 if (fmt == archUnknown)
1887 AH->format = _discoverArchiveFormat(AH);
1891 AH->promptPassword = TRI_DEFAULT;
1896 InitArchiveFmt_Custom(AH);
1900 InitArchiveFmt_Files(AH);
1904 InitArchiveFmt_Null(AH);
1908 InitArchiveFmt_Tar(AH);
1912 die_horribly(AH, modulename, "unrecognized file format \"%d\"\n", fmt);
1920 WriteDataChunks(ArchiveHandle *AH)
1923 StartDataPtr startPtr;
1926 for (te = AH->toc->next; te != AH->toc; te = te->next)
1928 if (te->dataDumper != NULL)
1931 /* printf("Writing data for %d (%x)\n", te->id, te); */
1933 if (strcmp(te->desc, "BLOBS") == 0)
1935 startPtr = AH->StartBlobsPtr;
1936 endPtr = AH->EndBlobsPtr;
1940 startPtr = AH->StartDataPtr;
1941 endPtr = AH->EndDataPtr;
1944 if (startPtr != NULL)
1945 (*startPtr) (AH, te);
1948 * printf("Dumper arg for %d is %x\n", te->id, te->dataDumperArg);
1952 * The user-provided DataDumper routine needs to call
1955 (*te->dataDumper) ((Archive *) AH, te->dataDumperArg);
1965 WriteToc(ArchiveHandle *AH)
1971 /* printf("%d TOC Entries to save\n", AH->tocCount); */
1973 WriteInt(AH, AH->tocCount);
1975 for (te = AH->toc->next; te != AH->toc; te = te->next)
1977 WriteInt(AH, te->dumpId);
1978 WriteInt(AH, te->dataDumper ? 1 : 0);
1980 /* OID is recorded as a string for historical reasons */
1981 sprintf(workbuf, "%u", te->catalogId.tableoid);
1982 WriteStr(AH, workbuf);
1983 sprintf(workbuf, "%u", te->catalogId.oid);
1984 WriteStr(AH, workbuf);
1986 WriteStr(AH, te->tag);
1987 WriteStr(AH, te->desc);
1988 WriteInt(AH, te->section);
1989 WriteStr(AH, te->defn);
1990 WriteStr(AH, te->dropStmt);
1991 WriteStr(AH, te->copyStmt);
1992 WriteStr(AH, te->namespace);
1993 WriteStr(AH, te->tablespace);
1994 WriteStr(AH, te->owner);
1995 WriteStr(AH, te->withOids ? "true" : "false");
1997 /* Dump list of dependencies */
1998 for (i = 0; i < te->nDeps; i++)
2000 sprintf(workbuf, "%d", te->dependencies[i]);
2001 WriteStr(AH, workbuf);
2003 WriteStr(AH, NULL); /* Terminate List */
2005 if (AH->WriteExtraTocPtr)
2006 (*AH->WriteExtraTocPtr) (AH, te);
2011 ReadToc(ArchiveHandle *AH)
2020 AH->tocCount = ReadInt(AH);
2023 for (i = 0; i < AH->tocCount; i++)
2025 te = (TocEntry *) calloc(1, sizeof(TocEntry));
2026 te->dumpId = ReadInt(AH);
2028 if (te->dumpId > AH->maxDumpId)
2029 AH->maxDumpId = te->dumpId;
2032 if (te->dumpId <= 0)
2033 die_horribly(AH, modulename,
2034 "entry ID %d out of range -- perhaps a corrupt TOC\n",
2037 te->hadDumper = ReadInt(AH);
2039 if (AH->version >= K_VERS_1_8)
2042 sscanf(tmp, "%u", &te->catalogId.tableoid);
2046 te->catalogId.tableoid = InvalidOid;
2048 sscanf(tmp, "%u", &te->catalogId.oid);
2051 te->tag = ReadStr(AH);
2052 te->desc = ReadStr(AH);
2054 if (AH->version >= K_VERS_1_11)
2056 te->section = ReadInt(AH);
2061 * rules for pre-8.4 archives wherein pg_dump hasn't classified
2062 * the entries into sections
2064 if (strcmp(te->desc, "COMMENT") == 0 ||
2065 strcmp(te->desc, "ACL") == 0)
2066 te->section = SECTION_NONE;
2067 else if (strcmp(te->desc, "TABLE DATA") == 0 ||
2068 strcmp(te->desc, "BLOBS") == 0 ||
2069 strcmp(te->desc, "BLOB COMMENTS") == 0)
2070 te->section = SECTION_DATA;
2071 else if (strcmp(te->desc, "CONSTRAINT") == 0 ||
2072 strcmp(te->desc, "CHECK CONSTRAINT") == 0 ||
2073 strcmp(te->desc, "FK CONSTRAINT") == 0 ||
2074 strcmp(te->desc, "INDEX") == 0 ||
2075 strcmp(te->desc, "RULE") == 0 ||
2076 strcmp(te->desc, "TRIGGER") == 0)
2077 te->section = SECTION_POST_DATA;
2079 te->section = SECTION_PRE_DATA;
2082 te->defn = ReadStr(AH);
2083 te->dropStmt = ReadStr(AH);
2085 if (AH->version >= K_VERS_1_3)
2086 te->copyStmt = ReadStr(AH);
2088 if (AH->version >= K_VERS_1_6)
2089 te->namespace = ReadStr(AH);
2091 if (AH->version >= K_VERS_1_10)
2092 te->tablespace = ReadStr(AH);
2094 te->owner = ReadStr(AH);
2095 if (AH->version >= K_VERS_1_9)
2097 if (strcmp(ReadStr(AH), "true") == 0)
2098 te->withOids = true;
2100 te->withOids = false;
2103 te->withOids = true;
2105 /* Read TOC entry dependencies */
2106 if (AH->version >= K_VERS_1_5)
2109 deps = (DumpId *) malloc(sizeof(DumpId) * depSize);
2115 break; /* end of list */
2116 if (depIdx >= depSize)
2119 deps = (DumpId *) realloc(deps, sizeof(DumpId) * depSize);
2121 sscanf(tmp, "%d", &deps[depIdx]);
2126 if (depIdx > 0) /* We have a non-null entry */
2128 deps = (DumpId *) realloc(deps, sizeof(DumpId) * depIdx);
2129 te->dependencies = deps;
2135 te->dependencies = NULL;
2141 te->dependencies = NULL;
2145 if (AH->ReadExtraTocPtr)
2146 (*AH->ReadExtraTocPtr) (AH, te);
2148 ahlog(AH, 3, "read TOC entry %d (ID %d) for %s %s\n",
2149 i, te->dumpId, te->desc, te->tag);
2151 /* link completed entry into TOC circular list */
2152 te->prev = AH->toc->prev;
2153 AH->toc->prev->next = te;
2157 /* special processing immediately upon read for some items */
2158 if (strcmp(te->desc, "ENCODING") == 0)
2159 processEncodingEntry(AH, te);
2160 else if (strcmp(te->desc, "STDSTRINGS") == 0)
2161 processStdStringsEntry(AH, te);
2166 processEncodingEntry(ArchiveHandle *AH, TocEntry *te)
2168 /* te->defn should have the form SET client_encoding = 'foo'; */
2169 char *defn = strdup(te->defn);
2174 ptr1 = strchr(defn, '\'');
2176 ptr2 = strchr(++ptr1, '\'');
2180 encoding = pg_char_to_encoding(ptr1);
2182 die_horribly(AH, modulename, "unrecognized encoding \"%s\"\n",
2184 AH->public.encoding = encoding;
2187 die_horribly(AH, modulename, "invalid ENCODING item: %s\n",
2194 processStdStringsEntry(ArchiveHandle *AH, TocEntry *te)
2196 /* te->defn should have the form SET standard_conforming_strings = 'x'; */
2199 ptr1 = strchr(te->defn, '\'');
2200 if (ptr1 && strncmp(ptr1, "'on'", 4) == 0)
2201 AH->public.std_strings = true;
2202 else if (ptr1 && strncmp(ptr1, "'off'", 5) == 0)
2203 AH->public.std_strings = false;
2205 die_horribly(AH, modulename, "invalid STDSTRINGS item: %s\n",
2210 _tocEntryRequired(TocEntry *te, RestoreOptions *ropt, bool include_acls)
2212 teReqs res = REQ_ALL;
2214 /* ENCODING and STDSTRINGS items are dumped specially, so always reject */
2215 if (strcmp(te->desc, "ENCODING") == 0 ||
2216 strcmp(te->desc, "STDSTRINGS") == 0)
2219 /* If it's an ACL, maybe ignore it */
2220 if ((!include_acls || ropt->aclsSkip) && strcmp(te->desc, "ACL") == 0)
2223 if (!ropt->create && strcmp(te->desc, "DATABASE") == 0)
2226 /* Check options for selective dump/restore */
2227 if (ropt->schemaNames)
2229 /* If no namespace is specified, it means all. */
2232 if (strcmp(ropt->schemaNames, te->namespace) != 0)
2238 if (strcmp(te->desc, "TABLE") == 0 ||
2239 strcmp(te->desc, "TABLE DATA") == 0)
2241 if (!ropt->selTable)
2243 if (ropt->tableNames && strcmp(ropt->tableNames, te->tag) != 0)
2246 else if (strcmp(te->desc, "INDEX") == 0)
2248 if (!ropt->selIndex)
2250 if (ropt->indexNames && strcmp(ropt->indexNames, te->tag) != 0)
2253 else if (strcmp(te->desc, "FUNCTION") == 0)
2255 if (!ropt->selFunction)
2257 if (ropt->functionNames && strcmp(ropt->functionNames, te->tag) != 0)
2260 else if (strcmp(te->desc, "TRIGGER") == 0)
2262 if (!ropt->selTrigger)
2264 if (ropt->triggerNames && strcmp(ropt->triggerNames, te->tag) != 0)
2272 * Check if we had a dataDumper. Indicates if the entry is schema or data
2277 * Special Case: If 'SEQUENCE SET' then it is considered a data entry
2279 if (strcmp(te->desc, "SEQUENCE SET") == 0)
2280 res = res & REQ_DATA;
2282 res = res & ~REQ_DATA;
2286 * Special case: <Init> type with <Max OID> tag; this is obsolete and we
2289 if ((strcmp(te->desc, "<Init>") == 0) && (strcmp(te->tag, "Max OID") == 0))
2292 /* Mask it if we only want schema */
2293 if (ropt->schemaOnly)
2294 res = res & REQ_SCHEMA;
2296 /* Mask it we only want data */
2298 res = res & REQ_DATA;
2300 /* Mask it if we don't have a schema contribution */
2301 if (!te->defn || strlen(te->defn) == 0)
2302 res = res & ~REQ_SCHEMA;
2304 /* Finally, if there's a per-ID filter, limit based on that as well */
2305 if (ropt->idWanted && !ropt->idWanted[te->dumpId - 1])
2312 * Issue SET commands for parameters that we want to have set the same way
2313 * at all times during execution of a restore script.
2316 _doSetFixedOutputState(ArchiveHandle *AH)
2318 /* Disable statement_timeout in archive for pg_restore/psql */
2319 ahprintf(AH, "SET statement_timeout = 0;\n");
2321 /* Select the correct character set encoding */
2322 ahprintf(AH, "SET client_encoding = '%s';\n",
2323 pg_encoding_to_char(AH->public.encoding));
2325 /* Select the correct string literal syntax */
2326 ahprintf(AH, "SET standard_conforming_strings = %s;\n",
2327 AH->public.std_strings ? "on" : "off");
2329 /* Select the role to be used during restore */
2330 if (AH->ropt && AH->ropt->use_role)
2331 ahprintf(AH, "SET ROLE %s;\n", fmtId(AH->ropt->use_role));
2333 /* Make sure function checking is disabled */
2334 ahprintf(AH, "SET check_function_bodies = false;\n");
2336 /* Avoid annoying notices etc */
2337 ahprintf(AH, "SET client_min_messages = warning;\n");
2338 if (!AH->public.std_strings)
2339 ahprintf(AH, "SET escape_string_warning = off;\n");
2345 * Issue a SET SESSION AUTHORIZATION command. Caller is responsible
2346 * for updating state if appropriate. If user is NULL or an empty string,
2347 * the specification DEFAULT will be used.
2350 _doSetSessionAuth(ArchiveHandle *AH, const char *user)
2352 PQExpBuffer cmd = createPQExpBuffer();
2354 appendPQExpBuffer(cmd, "SET SESSION AUTHORIZATION ");
2357 * SQL requires a string literal here. Might as well be correct.
2360 appendStringLiteralAHX(cmd, user, AH);
2362 appendPQExpBuffer(cmd, "DEFAULT");
2363 appendPQExpBuffer(cmd, ";");
2365 if (RestoringToDB(AH))
2369 res = PQexec(AH->connection, cmd->data);
2371 if (!res || PQresultStatus(res) != PGRES_COMMAND_OK)
2372 /* NOT warn_or_die_horribly... use -O instead to skip this. */
2373 die_horribly(AH, modulename, "could not set session user to \"%s\": %s",
2374 user, PQerrorMessage(AH->connection));
2379 ahprintf(AH, "%s\n\n", cmd->data);
2381 destroyPQExpBuffer(cmd);
2386 * Issue a SET default_with_oids command. Caller is responsible
2387 * for updating state if appropriate.
2390 _doSetWithOids(ArchiveHandle *AH, const bool withOids)
2392 PQExpBuffer cmd = createPQExpBuffer();
2394 appendPQExpBuffer(cmd, "SET default_with_oids = %s;", withOids ?
2397 if (RestoringToDB(AH))
2401 res = PQexec(AH->connection, cmd->data);
2403 if (!res || PQresultStatus(res) != PGRES_COMMAND_OK)
2404 warn_or_die_horribly(AH, modulename,
2405 "could not set default_with_oids: %s",
2406 PQerrorMessage(AH->connection));
2411 ahprintf(AH, "%s\n\n", cmd->data);
2413 destroyPQExpBuffer(cmd);
2418 * Issue the commands to connect to the specified database.
2420 * If we're currently restoring right into a database, this will
2421 * actually establish a connection. Otherwise it puts a \connect into
2422 * the script output.
2424 * NULL dbname implies reconnecting to the current DB (pretty useless).
2427 _reconnectToDB(ArchiveHandle *AH, const char *dbname)
2429 if (RestoringToDB(AH))
2430 ReconnectToServer(AH, dbname, NULL);
2433 PQExpBuffer qry = createPQExpBuffer();
2435 appendPQExpBuffer(qry, "\\connect %s\n\n",
2436 dbname ? fmtId(dbname) : "-");
2437 ahprintf(AH, "%s", qry->data);
2438 destroyPQExpBuffer(qry);
2442 * NOTE: currUser keeps track of what the imaginary session user in our
2443 * script is. It's now effectively reset to the original userID.
2447 AH->currUser = NULL;
2449 /* don't assume we still know the output schema, tablespace, etc either */
2451 free(AH->currSchema);
2452 AH->currSchema = NULL;
2453 if (AH->currTablespace)
2454 free(AH->currTablespace);
2455 AH->currTablespace = NULL;
2456 AH->currWithOids = -1;
2458 /* re-establish fixed state */
2459 _doSetFixedOutputState(AH);
2463 * Become the specified user, and update state to avoid redundant commands
2465 * NULL or empty argument is taken to mean restoring the session default
2468 _becomeUser(ArchiveHandle *AH, const char *user)
2471 user = ""; /* avoid null pointers */
2473 if (AH->currUser && strcmp(AH->currUser, user) == 0)
2474 return; /* no need to do anything */
2476 _doSetSessionAuth(AH, user);
2479 * NOTE: currUser keeps track of what the imaginary session user in our
2484 AH->currUser = strdup(user);
2488 * Become the owner of the the given TOC entry object. If
2489 * changes in ownership are not allowed, this doesn't do anything.
2492 _becomeOwner(ArchiveHandle *AH, TocEntry *te)
2494 if (AH->ropt && (AH->ropt->noOwner || !AH->ropt->use_setsessauth))
2497 _becomeUser(AH, te->owner);
2502 * Set the proper default_with_oids value for the table.
2505 _setWithOids(ArchiveHandle *AH, TocEntry *te)
2507 if (AH->currWithOids != te->withOids)
2509 _doSetWithOids(AH, te->withOids);
2510 AH->currWithOids = te->withOids;
2516 * Issue the commands to select the specified schema as the current schema
2517 * in the target database.
2520 _selectOutputSchema(ArchiveHandle *AH, const char *schemaName)
2524 if (!schemaName || *schemaName == '\0' ||
2525 (AH->currSchema && strcmp(AH->currSchema, schemaName) == 0))
2526 return; /* no need to do anything */
2528 qry = createPQExpBuffer();
2530 appendPQExpBuffer(qry, "SET search_path = %s",
2532 if (strcmp(schemaName, "pg_catalog") != 0)
2533 appendPQExpBuffer(qry, ", pg_catalog");
2535 if (RestoringToDB(AH))
2539 res = PQexec(AH->connection, qry->data);
2541 if (!res || PQresultStatus(res) != PGRES_COMMAND_OK)
2542 warn_or_die_horribly(AH, modulename,
2543 "could not set search_path to \"%s\": %s",
2544 schemaName, PQerrorMessage(AH->connection));
2549 ahprintf(AH, "%s;\n\n", qry->data);
2552 free(AH->currSchema);
2553 AH->currSchema = strdup(schemaName);
2555 destroyPQExpBuffer(qry);
2559 * Issue the commands to select the specified tablespace as the current one
2560 * in the target database.
2563 _selectTablespace(ArchiveHandle *AH, const char *tablespace)
2569 /* do nothing in --no-tablespaces mode */
2570 if (AH->ropt->noTablespace)
2573 have = AH->currTablespace;
2576 /* no need to do anything for non-tablespace object */
2580 if (have && strcmp(want, have) == 0)
2581 return; /* no need to do anything */
2583 qry = createPQExpBuffer();
2585 if (strcmp(want, "") == 0)
2587 /* We want the tablespace to be the database's default */
2588 appendPQExpBuffer(qry, "SET default_tablespace = ''");
2592 /* We want an explicit tablespace */
2593 appendPQExpBuffer(qry, "SET default_tablespace = %s", fmtId(want));
2596 if (RestoringToDB(AH))
2600 res = PQexec(AH->connection, qry->data);
2602 if (!res || PQresultStatus(res) != PGRES_COMMAND_OK)
2603 warn_or_die_horribly(AH, modulename,
2604 "could not set default_tablespace to %s: %s",
2605 fmtId(want), PQerrorMessage(AH->connection));
2610 ahprintf(AH, "%s;\n\n", qry->data);
2612 if (AH->currTablespace)
2613 free(AH->currTablespace);
2614 AH->currTablespace = strdup(want);
2616 destroyPQExpBuffer(qry);
2620 * Extract an object description for a TOC entry, and append it to buf.
2622 * This is not quite as general as it may seem, since it really only
2623 * handles constructing the right thing to put into ALTER ... OWNER TO.
2625 * The whole thing is pretty grotty, but we are kind of stuck since the
2626 * information used is all that's available in older dump files.
2629 _getObjectDescription(PQExpBuffer buf, TocEntry *te, ArchiveHandle *AH)
2631 const char *type = te->desc;
2633 /* Use ALTER TABLE for views and sequences */
2634 if (strcmp(type, "VIEW") == 0 || strcmp(type, "SEQUENCE") == 0)
2637 /* objects named by a schema and name */
2638 if (strcmp(type, "CONVERSION") == 0 ||
2639 strcmp(type, "DOMAIN") == 0 ||
2640 strcmp(type, "TABLE") == 0 ||
2641 strcmp(type, "TYPE") == 0 ||
2642 strcmp(type, "TEXT SEARCH DICTIONARY") == 0 ||
2643 strcmp(type, "TEXT SEARCH CONFIGURATION") == 0)
2645 appendPQExpBuffer(buf, "%s ", type);
2646 if (te->namespace && te->namespace[0]) /* is null pre-7.3 */
2647 appendPQExpBuffer(buf, "%s.", fmtId(te->namespace));
2650 * Pre-7.3 pg_dump would sometimes (not always) put a fmtId'd name
2651 * into te->tag for an index. This check is heuristic, so make its
2652 * scope as narrow as possible.
2654 if (AH->version < K_VERS_1_7 &&
2655 te->tag[0] == '"' &&
2656 te->tag[strlen(te->tag) - 1] == '"' &&
2657 strcmp(type, "INDEX") == 0)
2658 appendPQExpBuffer(buf, "%s", te->tag);
2660 appendPQExpBuffer(buf, "%s", fmtId(te->tag));
2664 /* objects named by just a name */
2665 if (strcmp(type, "DATABASE") == 0 ||
2666 strcmp(type, "PROCEDURAL LANGUAGE") == 0 ||
2667 strcmp(type, "SCHEMA") == 0 ||
2668 strcmp(type, "FOREIGN DATA WRAPPER") == 0 ||
2669 strcmp(type, "SERVER") == 0 ||
2670 strcmp(type, "USER MAPPING") == 0)
2672 appendPQExpBuffer(buf, "%s %s", type, fmtId(te->tag));
2677 * These object types require additional decoration. Fortunately, the
2678 * information needed is exactly what's in the DROP command.
2680 if (strcmp(type, "AGGREGATE") == 0 ||
2681 strcmp(type, "FUNCTION") == 0 ||
2682 strcmp(type, "OPERATOR") == 0 ||
2683 strcmp(type, "OPERATOR CLASS") == 0 ||
2684 strcmp(type, "OPERATOR FAMILY") == 0)
2686 /* Chop "DROP " off the front and make a modifiable copy */
2687 char *first = strdup(te->dropStmt + 5);
2690 /* point to last character in string */
2691 last = first + strlen(first) - 1;
2693 /* Strip off any ';' or '\n' at the end */
2694 while (last >= first && (*last == '\n' || *last == ';'))
2698 appendPQExpBufferStr(buf, first);
2704 write_msg(modulename, "WARNING: don't know how to set owner for object type %s\n",
2709 _printTocEntry(ArchiveHandle *AH, TocEntry *te, RestoreOptions *ropt, bool isData, bool acl_pass)
2711 /* ACLs are dumped only during acl pass */
2714 if (strcmp(te->desc, "ACL") != 0)
2719 if (strcmp(te->desc, "ACL") == 0)
2724 * Avoid dumping the public schema, as it will already be created ...
2725 * unless we are using --clean mode, in which case it's been deleted and
2726 * we'd better recreate it. Likewise for its comment, if any.
2728 if (!ropt->dropSchema)
2730 if (strcmp(te->desc, "SCHEMA") == 0 &&
2731 strcmp(te->tag, "public") == 0)
2733 /* The comment restore would require super-user privs, so avoid it. */
2734 if (strcmp(te->desc, "COMMENT") == 0 &&
2735 strcmp(te->tag, "SCHEMA public") == 0)
2739 /* Select owner, schema, and tablespace as necessary */
2740 _becomeOwner(AH, te);
2741 _selectOutputSchema(AH, te->namespace);
2742 _selectTablespace(AH, te->tablespace);
2744 /* Set up OID mode too */
2745 if (strcmp(te->desc, "TABLE") == 0)
2746 _setWithOids(AH, te);
2748 /* Emit header comment for item */
2749 if (!AH->noTocComments)
2758 ahprintf(AH, "--\n");
2759 if (AH->public.verbose)
2761 ahprintf(AH, "-- TOC entry %d (class %u OID %u)\n",
2762 te->dumpId, te->catalogId.tableoid, te->catalogId.oid);
2767 ahprintf(AH, "-- Dependencies:");
2768 for (i = 0; i < te->nDeps; i++)
2769 ahprintf(AH, " %d", te->dependencies[i]);
2773 ahprintf(AH, "-- %sName: %s; Type: %s; Schema: %s; Owner: %s",
2774 pfx, te->tag, te->desc,
2775 te->namespace ? te->namespace : "-",
2776 ropt->noOwner ? "-" : te->owner);
2777 if (te->tablespace && !ropt->noTablespace)
2778 ahprintf(AH, "; Tablespace: %s", te->tablespace);
2781 if (AH->PrintExtraTocPtr !=NULL)
2782 (*AH->PrintExtraTocPtr) (AH, te);
2783 ahprintf(AH, "--\n\n");
2787 * Actually print the definition.
2789 * Really crude hack for suppressing AUTHORIZATION clause that old pg_dump
2790 * versions put into CREATE SCHEMA. We have to do this when --no-owner
2791 * mode is selected. This is ugly, but I see no other good way ...
2793 if (ropt->noOwner && strcmp(te->desc, "SCHEMA") == 0)
2795 ahprintf(AH, "CREATE SCHEMA %s;\n\n\n", fmtId(te->tag));
2799 if (strlen(te->defn) > 0)
2800 ahprintf(AH, "%s\n\n", te->defn);
2804 * If we aren't using SET SESSION AUTH to determine ownership, we must
2805 * instead issue an ALTER OWNER command. We assume that anything without
2806 * a DROP command is not a separately ownable object. All the categories
2807 * with DROP commands must appear in one list or the other.
2809 if (!ropt->noOwner && !ropt->use_setsessauth &&
2810 strlen(te->owner) > 0 && strlen(te->dropStmt) > 0)
2812 if (strcmp(te->desc, "AGGREGATE") == 0 ||
2813 strcmp(te->desc, "CONVERSION") == 0 ||
2814 strcmp(te->desc, "DATABASE") == 0 ||
2815 strcmp(te->desc, "DOMAIN") == 0 ||
2816 strcmp(te->desc, "FUNCTION") == 0 ||
2817 strcmp(te->desc, "OPERATOR") == 0 ||
2818 strcmp(te->desc, "OPERATOR CLASS") == 0 ||
2819 strcmp(te->desc, "OPERATOR FAMILY") == 0 ||
2820 strcmp(te->desc, "PROCEDURAL LANGUAGE") == 0 ||
2821 strcmp(te->desc, "SCHEMA") == 0 ||
2822 strcmp(te->desc, "TABLE") == 0 ||
2823 strcmp(te->desc, "TYPE") == 0 ||
2824 strcmp(te->desc, "VIEW") == 0 ||
2825 strcmp(te->desc, "SEQUENCE") == 0 ||
2826 strcmp(te->desc, "TEXT SEARCH DICTIONARY") == 0 ||
2827 strcmp(te->desc, "TEXT SEARCH CONFIGURATION") == 0 ||
2828 strcmp(te->desc, "FOREIGN DATA WRAPPER") == 0 ||
2829 strcmp(te->desc, "SERVER") == 0)
2831 PQExpBuffer temp = createPQExpBuffer();
2833 appendPQExpBuffer(temp, "ALTER ");
2834 _getObjectDescription(temp, te, AH);
2835 appendPQExpBuffer(temp, " OWNER TO %s;", fmtId(te->owner));
2836 ahprintf(AH, "%s\n\n", temp->data);
2837 destroyPQExpBuffer(temp);
2839 else if (strcmp(te->desc, "CAST") == 0 ||
2840 strcmp(te->desc, "CHECK CONSTRAINT") == 0 ||
2841 strcmp(te->desc, "CONSTRAINT") == 0 ||
2842 strcmp(te->desc, "DEFAULT") == 0 ||
2843 strcmp(te->desc, "FK CONSTRAINT") == 0 ||
2844 strcmp(te->desc, "INDEX") == 0 ||
2845 strcmp(te->desc, "RULE") == 0 ||
2846 strcmp(te->desc, "TRIGGER") == 0 ||
2847 strcmp(te->desc, "USER MAPPING") == 0)
2849 /* these object types don't have separate owners */
2853 write_msg(modulename, "WARNING: don't know how to set owner for object type %s\n",
2859 * If it's an ACL entry, it might contain SET SESSION AUTHORIZATION
2860 * commands, so we can no longer assume we know the current auth setting.
2862 if (strncmp(te->desc, "ACL", 3) == 0)
2866 AH->currUser = NULL;
2871 WriteHead(ArchiveHandle *AH)
2875 (*AH->WriteBufPtr) (AH, "PGDMP", 5); /* Magic code */
2876 (*AH->WriteBytePtr) (AH, AH->vmaj);
2877 (*AH->WriteBytePtr) (AH, AH->vmin);
2878 (*AH->WriteBytePtr) (AH, AH->vrev);
2879 (*AH->WriteBytePtr) (AH, AH->intSize);
2880 (*AH->WriteBytePtr) (AH, AH->offSize);
2881 (*AH->WriteBytePtr) (AH, AH->format);
2884 if (AH->compression != 0)
2885 write_msg(modulename, "WARNING: requested compression not available in this "
2886 "installation -- archive will be uncompressed\n");
2888 AH->compression = 0;
2891 WriteInt(AH, AH->compression);
2893 crtm = *localtime(&AH->createDate);
2894 WriteInt(AH, crtm.tm_sec);
2895 WriteInt(AH, crtm.tm_min);
2896 WriteInt(AH, crtm.tm_hour);
2897 WriteInt(AH, crtm.tm_mday);
2898 WriteInt(AH, crtm.tm_mon);
2899 WriteInt(AH, crtm.tm_year);
2900 WriteInt(AH, crtm.tm_isdst);
2901 WriteStr(AH, PQdb(AH->connection));
2902 WriteStr(AH, AH->public.remoteVersionStr);
2903 WriteStr(AH, PG_VERSION);
2907 ReadHead(ArchiveHandle *AH)
2913 /* If we haven't already read the header... */
2914 if (!AH->readHeader)
2916 if ((*AH->ReadBufPtr) (AH, tmpMag, 5) != 5)
2917 die_horribly(AH, modulename, "unexpected end of file\n");
2919 if (strncmp(tmpMag, "PGDMP", 5) != 0)
2920 die_horribly(AH, modulename, "did not find magic string in file header\n");
2922 AH->vmaj = (*AH->ReadBytePtr) (AH);
2923 AH->vmin = (*AH->ReadBytePtr) (AH);
2925 if (AH->vmaj > 1 || ((AH->vmaj == 1) && (AH->vmin > 0))) /* Version > 1.0 */
2926 AH->vrev = (*AH->ReadBytePtr) (AH);
2930 AH->version = ((AH->vmaj * 256 + AH->vmin) * 256 + AH->vrev) * 256 + 0;
2933 if (AH->version < K_VERS_1_0 || AH->version > K_VERS_MAX)
2934 die_horribly(AH, modulename, "unsupported version (%d.%d) in file header\n",
2935 AH->vmaj, AH->vmin);
2937 AH->intSize = (*AH->ReadBytePtr) (AH);
2938 if (AH->intSize > 32)
2939 die_horribly(AH, modulename, "sanity check on integer size (%lu) failed\n",
2940 (unsigned long) AH->intSize);
2942 if (AH->intSize > sizeof(int))
2943 write_msg(modulename, "WARNING: archive was made on a machine with larger integers, some operations might fail\n");
2945 if (AH->version >= K_VERS_1_7)
2946 AH->offSize = (*AH->ReadBytePtr) (AH);
2948 AH->offSize = AH->intSize;
2950 fmt = (*AH->ReadBytePtr) (AH);
2952 if (AH->format != fmt)
2953 die_horribly(AH, modulename, "expected format (%d) differs from format found in file (%d)\n",
2957 if (AH->version >= K_VERS_1_2)
2959 if (AH->version < K_VERS_1_4)
2960 AH->compression = (*AH->ReadBytePtr) (AH);
2962 AH->compression = ReadInt(AH);
2965 AH->compression = Z_DEFAULT_COMPRESSION;
2968 if (AH->compression != 0)
2969 write_msg(modulename, "WARNING: archive is compressed, but this installation does not support compression -- no data will be available\n");
2972 if (AH->version >= K_VERS_1_4)
2974 crtm.tm_sec = ReadInt(AH);
2975 crtm.tm_min = ReadInt(AH);
2976 crtm.tm_hour = ReadInt(AH);
2977 crtm.tm_mday = ReadInt(AH);
2978 crtm.tm_mon = ReadInt(AH);
2979 crtm.tm_year = ReadInt(AH);
2980 crtm.tm_isdst = ReadInt(AH);
2982 AH->archdbname = ReadStr(AH);
2984 AH->createDate = mktime(&crtm);
2986 if (AH->createDate == (time_t) -1)
2987 write_msg(modulename, "WARNING: invalid creation date in header\n");
2990 if (AH->version >= K_VERS_1_10)
2992 AH->archiveRemoteVersion = ReadStr(AH);
2993 AH->archiveDumpVersion = ReadStr(AH);
3001 * check to see if fseek can be performed.
3006 if (fseeko(fp, 0, SEEK_CUR) != 0)
3008 else if (sizeof(pgoff_t) > sizeof(long))
3011 * At this point, pgoff_t is too large for long, so we return based on
3012 * whether an pgoff_t version of fseek is available.
3029 dumpTimestamp(ArchiveHandle *AH, const char *msg, time_t tim)
3034 * We don't print the timezone on Win32, because the names are long and
3035 * localized, which means they may contain characters in various random
3036 * encodings; this has been seen to cause encoding errors when reading the
3039 if (strftime(buf, sizeof(buf),
3041 "%Y-%m-%d %H:%M:%S %Z",
3043 "%Y-%m-%d %H:%M:%S",
3045 localtime(&tim)) != 0)
3046 ahprintf(AH, "-- %s %s\n\n", msg, buf);
3051 * Main engine for parallel restore.
3053 * Work is done in three phases.
3054 * First we process tocEntries until we come to one that is marked
3055 * SECTION_DATA or SECTION_POST_DATA, in a single connection, just as for a
3056 * standard restore. Second we process the remaining non-ACL steps in
3057 * parallel worker children (threads on Windows, processes on Unix), each of
3058 * which connects separately to the database. Finally we process all the ACL
3059 * entries in a single connection (that happens back in RestoreArchive).
3062 restore_toc_entries_parallel(ArchiveHandle *AH)
3064 RestoreOptions *ropt = AH->ropt;
3065 int n_slots = ropt->number_of_jobs;
3066 ParallelSlot *slots;
3069 TocEntry *first_unprocessed = AH->toc->next;
3070 TocEntry *next_work_item;
3074 ahlog(AH,2,"entering restore_toc_entries_parallel\n");
3076 /* we haven't got round to making this work for all archive formats */
3077 if (AH->ClonePtr == NULL || AH->ReopenPtr == NULL)
3078 die_horribly(AH, modulename, "parallel restore is not supported with this archive file format\n");
3080 slots = (ParallelSlot *) calloc(sizeof(ParallelSlot), n_slots);
3082 /* Adjust dependency information */
3083 fix_dependencies(AH);
3086 * Do all the early stuff in a single connection in the parent.
3087 * There's no great point in running it in parallel, in fact it will
3088 * actually run faster in a single connection because we avoid all the
3089 * connection and setup overhead.
3091 while ((next_work_item = get_next_work_item(AH, &first_unprocessed,
3094 if (next_work_item->section == SECTION_DATA ||
3095 next_work_item->section == SECTION_POST_DATA)
3098 ahlog(AH, 1, "processing item %d %s %s\n",
3099 next_work_item->dumpId,
3100 next_work_item->desc, next_work_item->tag);
3102 (void) restore_toc_entry(AH, next_work_item, ropt, false);
3104 next_work_item->restored = true;
3105 reduce_dependencies(AH, next_work_item);
3109 * Now close parent connection in prep for parallel steps. We do this
3110 * mainly to ensure that we don't exceed the specified number of parallel
3113 PQfinish(AH->connection);
3114 AH->connection = NULL;
3116 /* blow away any transient state from the old connection */
3119 AH->currUser = NULL;
3121 free(AH->currSchema);
3122 AH->currSchema = NULL;
3123 if (AH->currTablespace)
3124 free(AH->currTablespace);
3125 AH->currTablespace = NULL;
3126 AH->currWithOids = -1;
3131 * Keep going until there is no worker still running AND there is no work
3135 ahlog(AH,1,"entering main parallel loop\n");
3137 while ((next_work_item = get_next_work_item(AH, &first_unprocessed,
3138 slots, n_slots)) != NULL ||
3139 work_in_progress(slots, n_slots))
3141 if (next_work_item != NULL)
3145 /* If not to be dumped, don't waste time launching a worker */
3146 reqs = _tocEntryRequired(next_work_item, AH->ropt, false);
3147 if ((reqs & (REQ_SCHEMA | REQ_DATA)) == 0)
3149 ahlog(AH, 1, "skipping item %d %s %s\n",
3150 next_work_item->dumpId,
3151 next_work_item->desc, next_work_item->tag);
3153 next_work_item->restored = true;
3154 reduce_dependencies(AH, next_work_item);
3159 if ((next_slot = get_next_slot(slots, n_slots)) != NO_SLOT)
3161 /* There is work still to do and a worker slot available */
3165 ahlog(AH, 1, "launching item %d %s %s\n",
3166 next_work_item->dumpId,
3167 next_work_item->desc, next_work_item->tag);
3169 next_work_item->restored = true;
3171 /* this memory is dealloced in mark_work_done() */
3172 args = malloc(sizeof(RestoreArgs));
3173 args->AH = CloneArchive(AH);
3174 args->te = next_work_item;
3176 /* run the step in a worker child */
3177 child = spawn_restore(args);
3179 slots[next_slot].child_id = child;
3180 slots[next_slot].args = args;
3187 * If we get here there must be work being done. Either there is no
3188 * work available to schedule (and work_in_progress returned true) or
3189 * there are no slots available. So we wait for a worker to finish,
3190 * and process the result.
3192 ret_child = reap_child(slots, n_slots, &work_status);
3194 if (WIFEXITED(work_status))
3196 mark_work_done(AH, ret_child, WEXITSTATUS(work_status),
3201 die_horribly(AH, modulename, "worker process crashed: status %d\n",
3206 ahlog(AH,1,"finished main parallel loop\n");
3209 * Now reconnect the single parent connection.
3211 ConnectDatabase((Archive *) AH, ropt->dbname,
3212 ropt->pghost, ropt->pgport, ropt->username,
3213 ropt->promptPassword);
3215 _doSetFixedOutputState(AH);
3218 * Make sure there is no non-ACL work left due to, say,
3219 * circular dependencies, or some other pathological condition.
3220 * If so, do it in the single parent connection.
3222 for (te = AH->toc->next; te != AH->toc; te = te->next)
3226 ahlog(AH, 1, "processing missed item %d %s %s\n",
3227 te->dumpId, te->desc, te->tag);
3228 (void) restore_toc_entry(AH, te, ropt, false);
3232 /* The ACLs will be handled back in RestoreArchive. */
3236 * create a worker child to perform a restore step in parallel
3239 spawn_restore(RestoreArgs *args)
3243 /* Ensure stdio state is quiesced before forking */
3250 /* in child process */
3251 parallel_restore(args);
3252 die_horribly(args->AH, modulename,
3253 "parallel_restore should not return\n");
3258 die_horribly(args->AH, modulename,
3259 "could not create worker process: %s\n",
3263 child = (HANDLE) _beginthreadex(NULL, 0, (void *) parallel_restore,
3266 die_horribly(args->AH, modulename,
3267 "could not create worker thread: %s\n",
3275 * collect status from a completed worker child
3278 reap_child(ParallelSlot *slots, int n_slots, int *work_status)
3281 /* Unix is so much easier ... */
3282 return wait(work_status);
3284 static HANDLE *handles = NULL;
3285 int hindex, snum, tnum;
3289 /* first time around only, make space for handles to listen on */
3290 if (handles == NULL)
3291 handles = (HANDLE *) calloc(sizeof(HANDLE),n_slots);
3293 /* set up list of handles to listen to */
3294 for (snum=0, tnum=0; snum < n_slots; snum++)
3295 if (slots[snum].child_id != 0)
3296 handles[tnum++] = slots[snum].child_id;
3298 /* wait for one to finish */
3299 hindex = WaitForMultipleObjects(tnum, handles, false, INFINITE);
3301 /* get handle of finished thread */
3302 ret_child = handles[hindex - WAIT_OBJECT_0];
3304 /* get the result */
3305 GetExitCodeThread(ret_child,&res);
3308 /* dispose of handle to stop leaks */
3309 CloseHandle(ret_child);
3316 * are we doing anything now?
3319 work_in_progress(ParallelSlot *slots, int n_slots)
3323 for (i = 0; i < n_slots; i++)
3325 if (slots[i].child_id != 0)
3332 * find the first free parallel slot (if any).
3335 get_next_slot(ParallelSlot *slots, int n_slots)
3339 for (i = 0; i < n_slots; i++)
3341 if (slots[i].child_id == 0)
3349 * Check if te1 has an exclusive lock requirement for an item that te2 also
3350 * requires, whether or not te2's requirement is for an exclusive lock.
3353 has_lock_conflicts(TocEntry *te1, TocEntry *te2)
3357 for (j = 0; j < te1->nLockDeps; j++)
3359 for (k = 0; k < te2->nDeps; k++)
3361 if (te1->lockDeps[j] == te2->dependencies[k])
3371 * Find the next work item (if any) that is capable of being run now.
3373 * To qualify, the item must have no remaining dependencies
3374 * and no requirement for locks that is incompatible with
3375 * items currently running.
3377 * first_unprocessed is state data that tracks the location of the first
3378 * TocEntry that's not marked 'restored'. This avoids O(N^2) search time
3379 * with long TOC lists. (Even though the constant is pretty small, it'd
3380 * get us eventually.)
3382 * pref_non_data is for an alternative selection algorithm that gives
3383 * preference to non-data items if there is already a data load running.
3384 * It is currently disabled.
3387 get_next_work_item(ArchiveHandle *AH, TocEntry **first_unprocessed,
3388 ParallelSlot *slots, int n_slots)
3390 bool pref_non_data = false; /* or get from AH->ropt */
3391 TocEntry *data_te = NULL;
3396 * Bogus heuristics for pref_non_data
3402 for (k=0; k < n_slots; k++)
3403 if (slots[k].args->te != NULL &&
3404 slots[k].args->te->section == SECTION_DATA)
3406 if (n_slots == 0 || count * 4 < n_slots)
3407 pref_non_data = false;
3411 * Advance first_unprocessed if possible.
3413 for (te = *first_unprocessed; te != AH->toc; te = te->next)
3418 *first_unprocessed = te;
3421 * Search from first_unprocessed until we find an available item.
3423 for (; te != AH->toc; te = te->next)
3425 bool conflicts = false;
3427 /* Ignore if already done or still waiting on dependencies */
3428 if (te->restored || te->depCount > 0)
3432 * Check to see if the item would need exclusive lock on something
3433 * that a currently running item also needs lock on, or vice versa.
3434 * If so, we don't want to schedule them together.
3436 for (i = 0; i < n_slots && !conflicts; i++)
3438 TocEntry *running_te;
3440 if (slots[i].args == NULL)
3442 running_te = slots[i].args->te;
3444 if (has_lock_conflicts(te, running_te) ||
3445 has_lock_conflicts(running_te, te))
3455 if (pref_non_data && te->section == SECTION_DATA)
3457 if (data_te == NULL)
3462 /* passed all tests, so this item can run */
3466 if (data_te != NULL)
3469 ahlog(AH,2,"no item ready\n");
3475 * Restore a single TOC item in parallel with others
3477 * this is the procedure run as a thread (Windows) or a
3478 * separate process (everything else).
3480 static parallel_restore_result
3481 parallel_restore(RestoreArgs *args)
3483 ArchiveHandle *AH = args->AH;
3484 TocEntry *te = args->te;
3485 RestoreOptions *ropt = AH->ropt;
3489 * Close and reopen the input file so we have a private file pointer
3490 * that doesn't stomp on anyone else's file pointer, if we're actually
3491 * going to need to read from the file. Otherwise, just close it
3492 * except on Windows, where it will possibly be needed by other threads.
3494 * Note: on Windows, since we are using threads not processes, the
3495 * reopen call *doesn't* close the original file pointer but just open
3498 if (te->section == SECTION_DATA )
3499 (AH->ReopenPtr) (AH);
3502 (AH->ClosePtr) (AH);
3506 * We need our own database connection, too
3508 ConnectDatabase((Archive *) AH, ropt->dbname,
3509 ropt->pghost, ropt->pgport, ropt->username,
3510 ropt->promptPassword);
3512 _doSetFixedOutputState(AH);
3514 /* Restore the TOC item */
3515 retval = restore_toc_entry(AH, te, ropt, true);
3518 PQfinish(AH->connection);
3519 AH->connection = NULL;
3521 /* If we reopened the file, we are done with it, so close it now */
3522 if (te->section == SECTION_DATA )
3523 (AH->ClosePtr) (AH);
3525 if (retval == 0 && AH->public.n_errors)
3526 retval = WORKER_IGNORED_ERRORS;
3537 * Housekeeping to be done after a step has been parallel restored.
3539 * Clear the appropriate slot, free all the extra memory we allocated,
3540 * update status, and reduce the dependency count of any dependent items.
3543 mark_work_done(ArchiveHandle *AH, thandle worker, int status,
3544 ParallelSlot *slots, int n_slots)
3546 TocEntry *te = NULL;
3549 for (i = 0; i < n_slots; i++)
3551 if (slots[i].child_id == worker)
3553 slots[i].child_id = 0;
3554 te = slots[i].args->te;
3555 DeCloneArchive(slots[i].args->AH);
3556 free(slots[i].args);
3557 slots[i].args = NULL;
3564 die_horribly(AH, modulename, "could not find slot of finished worker\n");
3566 ahlog(AH, 1, "finished item %d %s %s\n",
3567 te->dumpId, te->desc, te->tag);
3569 if (status == WORKER_CREATE_DONE)
3570 mark_create_done(AH, te);
3571 else if (status == WORKER_INHIBIT_DATA)
3573 inhibit_data_for_failed_table(AH, te);
3574 AH->public.n_errors++;
3576 else if (status == WORKER_IGNORED_ERRORS)
3577 AH->public.n_errors++;
3578 else if (status != 0)
3579 die_horribly(AH, modulename, "worker process failed: exit code %d\n",
3582 reduce_dependencies(AH, te);
3587 * Process the dependency information into a form useful for parallel restore.
3589 * We set up depCount fields that are the number of as-yet-unprocessed
3590 * dependencies for each TOC entry.
3592 * We also identify locking dependencies so that we can avoid trying to
3593 * schedule conflicting items at the same time.
3596 fix_dependencies(ArchiveHandle *AH)
3598 TocEntry **tocsByDumpId;
3603 * For some of the steps here, it is convenient to have an array that
3604 * indexes the TOC entries by dump ID, rather than searching the TOC
3605 * list repeatedly. Entries for dump IDs not present in the TOC will
3608 * Also, initialize the depCount fields.
3610 tocsByDumpId = (TocEntry **) calloc(AH->maxDumpId, sizeof(TocEntry *));
3611 for (te = AH->toc->next; te != AH->toc; te = te->next)
3613 tocsByDumpId[te->dumpId - 1] = te;
3614 te->depCount = te->nDeps;
3618 * POST_DATA items that are shown as depending on a table need to be
3619 * re-pointed to depend on that table's data, instead. This ensures they
3620 * won't get scheduled until the data has been loaded. We handle this by
3621 * first finding TABLE/TABLE DATA pairs and then scanning all the
3624 * Note: currently, a TABLE DATA should always have exactly one
3625 * dependency, on its TABLE item. So we don't bother to search,
3626 * but look just at the first dependency. We do trouble to make sure
3627 * that it's a TABLE, if possible. However, if the dependency isn't
3628 * in the archive then just assume it was a TABLE; this is to cover
3629 * cases where the table was suppressed but we have the data and some
3630 * dependent post-data items.
3632 for (te = AH->toc->next; te != AH->toc; te = te->next)
3634 if (strcmp(te->desc, "TABLE DATA") == 0 && te->nDeps > 0)
3636 DumpId tableId = te->dependencies[0];
3638 if (tocsByDumpId[tableId - 1] == NULL ||
3639 strcmp(tocsByDumpId[tableId - 1]->desc, "TABLE") == 0)
3641 repoint_table_dependencies(AH, tableId, te->dumpId);
3647 * Pre-8.4 versions of pg_dump neglected to set up a dependency from
3648 * BLOB COMMENTS to BLOBS. Cope. (We assume there's only one BLOBS
3649 * and only one BLOB COMMENTS in such files.)
3651 if (AH->version < K_VERS_1_11)
3653 for (te = AH->toc->next; te != AH->toc; te = te->next)
3655 if (strcmp(te->desc, "BLOB COMMENTS") == 0 && te->nDeps == 0)
3659 for (te2 = AH->toc->next; te2 != AH->toc; te2 = te2->next)
3661 if (strcmp(te2->desc, "BLOBS") == 0)
3663 te->dependencies = (DumpId *) malloc(sizeof(DumpId));
3664 te->dependencies[0] = te2->dumpId;
3676 * It is possible that the dependencies list items that are not in the
3677 * archive at all. Subtract such items from the depCounts.
3679 for (te = AH->toc->next; te != AH->toc; te = te->next)
3681 for (i = 0; i < te->nDeps; i++)
3683 if (tocsByDumpId[te->dependencies[i] - 1] == NULL)
3689 * Lastly, work out the locking dependencies.
3691 for (te = AH->toc->next; te != AH->toc; te = te->next)
3693 te->lockDeps = NULL;
3695 identify_locking_dependencies(te, tocsByDumpId);
3702 * Change dependencies on tableId to depend on tableDataId instead,
3703 * but only in POST_DATA items.
3706 repoint_table_dependencies(ArchiveHandle *AH,
3707 DumpId tableId, DumpId tableDataId)
3712 for (te = AH->toc->next; te != AH->toc; te = te->next)
3714 if (te->section != SECTION_POST_DATA)
3716 for (i = 0; i < te->nDeps; i++)
3718 if (te->dependencies[i] == tableId)
3720 te->dependencies[i] = tableDataId;
3721 ahlog(AH, 2, "transferring dependency %d -> %d to %d\n",
3722 te->dumpId, tableId, tableDataId);
3729 * Identify which objects we'll need exclusive lock on in order to restore
3730 * the given TOC entry (*other* than the one identified by the TOC entry
3731 * itself). Record their dump IDs in the entry's lockDeps[] array.
3732 * tocsByDumpId[] is a convenience array to avoid searching the TOC
3733 * for each dependency.
3736 identify_locking_dependencies(TocEntry *te, TocEntry **tocsByDumpId)
3742 /* Quick exit if no dependencies at all */
3746 /* Exit if this entry doesn't need exclusive lock on other objects */
3747 if (!(strcmp(te->desc, "CONSTRAINT") == 0 ||
3748 strcmp(te->desc, "CHECK CONSTRAINT") == 0 ||
3749 strcmp(te->desc, "FK CONSTRAINT") == 0 ||
3750 strcmp(te->desc, "RULE") == 0 ||
3751 strcmp(te->desc, "TRIGGER") == 0))
3755 * We assume the item requires exclusive lock on each TABLE DATA item
3756 * listed among its dependencies. (This was originally a dependency
3757 * on the TABLE, but fix_dependencies repointed it to the data item.
3758 * Note that all the entry types we are interested in here are POST_DATA,
3759 * so they will all have been changed this way.)
3761 lockids = (DumpId *) malloc(te->nDeps * sizeof(DumpId));
3763 for (i = 0; i < te->nDeps; i++)
3765 DumpId depid = te->dependencies[i];
3767 if (tocsByDumpId[depid - 1] &&
3768 strcmp(tocsByDumpId[depid - 1]->desc, "TABLE DATA") == 0)
3769 lockids[nlockids++] = depid;
3778 te->lockDeps = realloc(lockids, nlockids * sizeof(DumpId));
3779 te->nLockDeps = nlockids;
3783 * Remove the specified TOC entry from the depCounts of items that depend on
3784 * it, thereby possibly making them ready-to-run.
3787 reduce_dependencies(ArchiveHandle *AH, TocEntry *te)
3789 DumpId target = te->dumpId;
3792 ahlog(AH,2,"reducing dependencies for %d\n",target);
3795 * We must examine all entries, not only the ones after the target item,
3796 * because if the user used a -L switch then the original dependency-
3797 * respecting order has been destroyed by SortTocFromFile.
3799 for (te = AH->toc->next; te != AH->toc; te = te->next)
3801 for (i = 0; i < te->nDeps; i++)
3803 if (te->dependencies[i] == target)
3810 * Set the created flag on the DATA member corresponding to the given
3814 mark_create_done(ArchiveHandle *AH, TocEntry *te)
3818 for (tes = AH->toc->next; tes != AH->toc; tes = tes->next)
3820 if (strcmp(tes->desc, "TABLE DATA") == 0 &&
3821 strcmp(tes->tag, te->tag) == 0 &&
3822 strcmp(tes->namespace ? tes->namespace : "",
3823 te->namespace ? te->namespace : "") == 0)
3825 tes->created = true;
3832 * Mark the DATA member corresponding to the given TABLE member
3836 inhibit_data_for_failed_table(ArchiveHandle *AH, TocEntry *te)
3838 RestoreOptions *ropt = AH->ropt;
3841 ahlog(AH, 1, "table \"%s\" could not be created, will not restore its data\n",
3844 for (tes = AH->toc->next; tes != AH->toc; tes = tes->next)
3846 if (strcmp(tes->desc, "TABLE DATA") == 0 &&
3847 strcmp(tes->tag, te->tag) == 0 &&
3848 strcmp(tes->namespace ? tes->namespace : "",
3849 te->namespace ? te->namespace : "") == 0)
3851 /* mark it unwanted; we assume idWanted array already exists */
3852 ropt->idWanted[tes->dumpId - 1] = false;
3860 * Clone and de-clone routines used in parallel restoration.
3862 * Enough of the structure is cloned to ensure that there is no
3863 * conflict between different threads each with their own clone.
3865 * These could be public, but no need at present.
3867 static ArchiveHandle *
3868 CloneArchive(ArchiveHandle *AH)
3870 ArchiveHandle *clone;
3872 /* Make a "flat" copy */
3873 clone = (ArchiveHandle *) malloc(sizeof(ArchiveHandle));
3875 die_horribly(AH, modulename, "out of memory\n");
3876 memcpy(clone, AH, sizeof(ArchiveHandle));
3878 /* Handle format-independent fields */
3879 clone->pgCopyBuf = createPQExpBuffer();
3880 clone->sqlBuf = createPQExpBuffer();
3881 clone->sqlparse.tagBuf = NULL;
3883 /* The clone will have its own connection, so disregard connection state */
3884 clone->connection = NULL;
3885 clone->currUser = NULL;
3886 clone->currSchema = NULL;
3887 clone->currTablespace = NULL;
3888 clone->currWithOids = -1;
3890 /* savedPassword must be local in case we change it while connecting */
3891 if (clone->savedPassword)
3892 clone->savedPassword = strdup(clone->savedPassword);
3894 /* clone has its own error count, too */
3895 clone->public.n_errors = 0;
3897 /* Let the format-specific code have a chance too */
3898 (clone->ClonePtr) (clone);
3904 * Release clone-local storage.
3906 * Note: we assume any clone-local connection was already closed.
3909 DeCloneArchive(ArchiveHandle *AH)
3911 /* Clear format-specific state */
3912 (AH->DeClonePtr) (AH);
3914 /* Clear state allocated by CloneArchive */
3915 destroyPQExpBuffer(AH->pgCopyBuf);
3916 destroyPQExpBuffer(AH->sqlBuf);
3917 if (AH->sqlparse.tagBuf)
3918 destroyPQExpBuffer(AH->sqlparse.tagBuf);
3920 /* Clear any connection-local state */
3924 free(AH->currSchema);
3925 if (AH->currTablespace)
3926 free(AH->currTablespace);
3927 if (AH->savedPassword)
3928 free(AH->savedPassword);