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synced 2025-05-06 19:59:18 +03:00
pg_basebackup: Use atexit()
Instead of using our custom disconnect_and_exit(), just register the desired cleanup using atexit() and use the standard exit() to leave the program. Reviewed-by: Alvaro Herrera <alvherre@2ndquadrant.com> Reviewed-by: Michael Paquier <michael@paquier.xyz> Discussion: https://www.postgresql.org/message-id/flat/ec4135ba-84e9-28bf-b584-0e78d47448d5@2ndquadrant.com/
This commit is contained in:
parent
afb0d0712f
commit
a4205fa00d
@ -136,7 +136,6 @@ static PQExpBuffer recoveryconfcontents = NULL;
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/* Function headers */
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static void usage(void);
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static void disconnect_and_exit(int code) pg_attribute_noreturn();
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static void verify_dir_is_empty_or_create(char *dirname, bool *created, bool *found);
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static void progress_report(int tablespacenum, const char *filename, bool force);
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@ -217,25 +216,25 @@ cleanup_directories_atexit(void)
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}
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static void
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disconnect_and_exit(int code)
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disconnect_atexit(void)
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{
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if (conn != NULL)
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PQfinish(conn);
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#ifndef WIN32
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/*
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* On windows, our background thread dies along with the process. But on
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* Unix, if we have started a subprocess, we want to kill it off so it
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* doesn't remain running trying to stream data.
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*/
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if (bgchild > 0)
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kill(bgchild, SIGTERM);
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#endif
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exit(code);
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}
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#ifndef WIN32
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/*
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* On windows, our background thread dies along with the process. But on
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* Unix, if we have started a subprocess, we want to kill it off so it
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* doesn't remain running trying to stream data.
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*/
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static void
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kill_bgchild_atexit(void)
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{
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if (bgchild > 0)
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kill(bgchild, SIGTERM);
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}
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#endif
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/*
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* Split argument into old_dir and new_dir and append to tablespace mapping
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@ -562,7 +561,7 @@ StartLogStreamer(char *startpos, uint32 timeline, char *sysidentifier)
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fprintf(stderr,
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_("%s: could not parse write-ahead log location \"%s\"\n"),
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progname, startpos);
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disconnect_and_exit(1);
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exit(1);
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}
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param->startptr = ((uint64) hi) << 32 | lo;
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/* Round off to even segment position */
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@ -575,7 +574,7 @@ StartLogStreamer(char *startpos, uint32 timeline, char *sysidentifier)
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fprintf(stderr,
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_("%s: could not create pipe for background process: %s\n"),
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progname, strerror(errno));
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disconnect_and_exit(1);
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exit(1);
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}
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#endif
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@ -604,7 +603,7 @@ StartLogStreamer(char *startpos, uint32 timeline, char *sysidentifier)
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{
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if (!CreateReplicationSlot(param->bgconn, replication_slot, NULL,
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temp_replication_slot, true, true, false))
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disconnect_and_exit(1);
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exit(1);
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if (verbose)
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{
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@ -635,7 +634,7 @@ StartLogStreamer(char *startpos, uint32 timeline, char *sysidentifier)
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fprintf(stderr,
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_("%s: could not create directory \"%s\": %s\n"),
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progname, statusdir, strerror(errno));
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disconnect_and_exit(1);
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exit(1);
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}
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}
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@ -654,19 +653,20 @@ StartLogStreamer(char *startpos, uint32 timeline, char *sysidentifier)
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{
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fprintf(stderr, _("%s: could not create background process: %s\n"),
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progname, strerror(errno));
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disconnect_and_exit(1);
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exit(1);
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}
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/*
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* Else we are in the parent process and all is well.
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*/
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atexit(kill_bgchild_atexit);
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#else /* WIN32 */
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bgchild = _beginthreadex(NULL, 0, (void *) LogStreamerMain, param, 0, NULL);
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if (bgchild == 0)
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{
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fprintf(stderr, _("%s: could not create background thread: %s\n"),
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progname, strerror(errno));
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disconnect_and_exit(1);
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exit(1);
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}
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#endif
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}
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@ -691,7 +691,7 @@ verify_dir_is_empty_or_create(char *dirname, bool *created, bool *found)
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fprintf(stderr,
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_("%s: could not create directory \"%s\": %s\n"),
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progname, dirname, strerror(errno));
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disconnect_and_exit(1);
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exit(1);
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}
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if (created)
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*created = true;
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@ -714,7 +714,7 @@ verify_dir_is_empty_or_create(char *dirname, bool *created, bool *found)
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fprintf(stderr,
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_("%s: directory \"%s\" exists but is not empty\n"),
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progname, dirname);
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disconnect_and_exit(1);
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exit(1);
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case -1:
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/*
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@ -722,7 +722,7 @@ verify_dir_is_empty_or_create(char *dirname, bool *created, bool *found)
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*/
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fprintf(stderr, _("%s: could not access directory \"%s\": %s\n"),
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progname, dirname, strerror(errno));
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disconnect_and_exit(1);
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exit(1);
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}
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}
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@ -933,7 +933,7 @@ writeTarData(
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fprintf(stderr,
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_("%s: could not write to compressed file \"%s\": %s\n"),
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progname, current_file, get_gz_error(ztarfile));
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disconnect_and_exit(1);
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exit(1);
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}
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}
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else
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@ -943,7 +943,7 @@ writeTarData(
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{
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fprintf(stderr, _("%s: could not write to file \"%s\": %s\n"),
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progname, current_file, strerror(errno));
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disconnect_and_exit(1);
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exit(1);
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}
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}
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}
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@ -1005,7 +1005,7 @@ ReceiveTarFile(PGconn *conn, PGresult *res, int rownum)
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fprintf(stderr,
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_("%s: could not set compression level %d: %s\n"),
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progname, compresslevel, get_gz_error(ztarfile));
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disconnect_and_exit(1);
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exit(1);
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}
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}
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else
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@ -1026,7 +1026,7 @@ ReceiveTarFile(PGconn *conn, PGresult *res, int rownum)
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fprintf(stderr,
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_("%s: could not set compression level %d: %s\n"),
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progname, compresslevel, get_gz_error(ztarfile));
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disconnect_and_exit(1);
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exit(1);
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}
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}
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else
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@ -1054,7 +1054,7 @@ ReceiveTarFile(PGconn *conn, PGresult *res, int rownum)
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fprintf(stderr,
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_("%s: could not set compression level %d: %s\n"),
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progname, compresslevel, get_gz_error(ztarfile));
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disconnect_and_exit(1);
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exit(1);
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}
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}
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else
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@ -1075,7 +1075,7 @@ ReceiveTarFile(PGconn *conn, PGresult *res, int rownum)
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fprintf(stderr,
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_("%s: could not create compressed file \"%s\": %s\n"),
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progname, filename, get_gz_error(ztarfile));
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disconnect_and_exit(1);
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exit(1);
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}
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}
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else
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@ -1086,7 +1086,7 @@ ReceiveTarFile(PGconn *conn, PGresult *res, int rownum)
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{
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fprintf(stderr, _("%s: could not create file \"%s\": %s\n"),
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progname, filename, strerror(errno));
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disconnect_and_exit(1);
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exit(1);
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}
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}
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@ -1098,7 +1098,7 @@ ReceiveTarFile(PGconn *conn, PGresult *res, int rownum)
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{
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fprintf(stderr, _("%s: could not get COPY data stream: %s"),
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progname, PQerrorMessage(conn));
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disconnect_and_exit(1);
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exit(1);
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}
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while (1)
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@ -1167,7 +1167,7 @@ ReceiveTarFile(PGconn *conn, PGresult *res, int rownum)
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fprintf(stderr,
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_("%s: could not close compressed file \"%s\": %s\n"),
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progname, filename, get_gz_error(ztarfile));
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disconnect_and_exit(1);
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exit(1);
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}
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}
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else
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@ -1180,7 +1180,7 @@ ReceiveTarFile(PGconn *conn, PGresult *res, int rownum)
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fprintf(stderr,
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_("%s: could not close file \"%s\": %s\n"),
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progname, filename, strerror(errno));
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disconnect_and_exit(1);
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exit(1);
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}
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}
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}
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@ -1191,7 +1191,7 @@ ReceiveTarFile(PGconn *conn, PGresult *res, int rownum)
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{
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fprintf(stderr, _("%s: could not read COPY data: %s"),
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progname, PQerrorMessage(conn));
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disconnect_and_exit(1);
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exit(1);
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}
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if (!writerecoveryconf || !basetablespace)
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@ -1427,7 +1427,7 @@ ReceiveAndUnpackTarFile(PGconn *conn, PGresult *res, int rownum)
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{
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fprintf(stderr, _("%s: could not get COPY data stream: %s"),
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progname, PQerrorMessage(conn));
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disconnect_and_exit(1);
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exit(1);
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}
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while (1)
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@ -1456,7 +1456,7 @@ ReceiveAndUnpackTarFile(PGconn *conn, PGresult *res, int rownum)
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{
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fprintf(stderr, _("%s: could not read COPY data: %s"),
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progname, PQerrorMessage(conn));
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disconnect_and_exit(1);
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exit(1);
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}
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if (file == NULL)
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@ -1470,7 +1470,7 @@ ReceiveAndUnpackTarFile(PGconn *conn, PGresult *res, int rownum)
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{
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fprintf(stderr, _("%s: invalid tar block header size: %d\n"),
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progname, r);
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disconnect_and_exit(1);
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exit(1);
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}
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totaldone += 512;
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@ -1520,7 +1520,7 @@ ReceiveAndUnpackTarFile(PGconn *conn, PGresult *res, int rownum)
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fprintf(stderr,
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_("%s: could not create directory \"%s\": %s\n"),
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progname, filename, strerror(errno));
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disconnect_and_exit(1);
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exit(1);
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}
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}
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#ifndef WIN32
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@ -1553,7 +1553,7 @@ ReceiveAndUnpackTarFile(PGconn *conn, PGresult *res, int rownum)
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_("%s: could not create symbolic link from \"%s\" to \"%s\": %s\n"),
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progname, filename, mapped_tblspc_path,
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strerror(errno));
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disconnect_and_exit(1);
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exit(1);
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}
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}
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else
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@ -1561,7 +1561,7 @@ ReceiveAndUnpackTarFile(PGconn *conn, PGresult *res, int rownum)
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fprintf(stderr,
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_("%s: unrecognized link indicator \"%c\"\n"),
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progname, copybuf[156]);
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disconnect_and_exit(1);
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exit(1);
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}
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continue; /* directory or link handled */
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}
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@ -1574,7 +1574,7 @@ ReceiveAndUnpackTarFile(PGconn *conn, PGresult *res, int rownum)
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{
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fprintf(stderr, _("%s: could not create file \"%s\": %s\n"),
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progname, filename, strerror(errno));
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disconnect_and_exit(1);
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exit(1);
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}
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#ifndef WIN32
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@ -1614,7 +1614,7 @@ ReceiveAndUnpackTarFile(PGconn *conn, PGresult *res, int rownum)
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{
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fprintf(stderr, _("%s: could not write to file \"%s\": %s\n"),
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progname, filename, strerror(errno));
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disconnect_and_exit(1);
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exit(1);
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}
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totaldone += r;
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progress_report(rownum, filename, false);
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@ -1640,7 +1640,7 @@ ReceiveAndUnpackTarFile(PGconn *conn, PGresult *res, int rownum)
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fprintf(stderr,
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_("%s: COPY stream ended before last file was finished\n"),
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progname);
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disconnect_and_exit(1);
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exit(1);
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}
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if (copybuf != NULL)
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@ -1687,14 +1687,14 @@ GenerateRecoveryConf(PGconn *conn)
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if (!recoveryconfcontents)
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{
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fprintf(stderr, _("%s: out of memory\n"), progname);
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disconnect_and_exit(1);
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exit(1);
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}
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connOptions = PQconninfo(conn);
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if (connOptions == NULL)
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{
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fprintf(stderr, _("%s: out of memory\n"), progname);
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disconnect_and_exit(1);
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exit(1);
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}
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initPQExpBuffer(&conninfo_buf);
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@ -1745,7 +1745,7 @@ GenerateRecoveryConf(PGconn *conn)
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PQExpBufferDataBroken(conninfo_buf))
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{
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fprintf(stderr, _("%s: out of memory\n"), progname);
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disconnect_and_exit(1);
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exit(1);
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}
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termPQExpBuffer(&conninfo_buf);
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@ -1771,7 +1771,7 @@ WriteRecoveryConf(void)
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if (cf == NULL)
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{
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fprintf(stderr, _("%s: could not open file \"%s\": %s\n"), progname, filename, strerror(errno));
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disconnect_and_exit(1);
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exit(1);
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}
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if (fwrite(recoveryconfcontents->data, recoveryconfcontents->len, 1, cf) != 1)
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@ -1779,7 +1779,7 @@ WriteRecoveryConf(void)
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fprintf(stderr,
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_("%s: could not write to file \"%s\": %s\n"),
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progname, filename, strerror(errno));
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disconnect_and_exit(1);
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exit(1);
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}
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fclose(cf);
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@ -1789,7 +1789,7 @@ WriteRecoveryConf(void)
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if (cf == NULL)
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{
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fprintf(stderr, _("%s: could not create file \"%s\": %s\n"), progname, filename, strerror(errno));
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disconnect_and_exit(1);
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exit(1);
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}
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fclose(cf);
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@ -1830,7 +1830,7 @@ BaseBackup(void)
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fprintf(stderr, _("%s: incompatible server version %s\n"),
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progname, serverver ? serverver : "'unknown'");
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disconnect_and_exit(1);
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exit(1);
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}
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/*
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@ -1844,7 +1844,7 @@ BaseBackup(void)
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* but add a hint about using -X none.
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*/
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fprintf(stderr, _("HINT: use -X none or -X fetch to disable log streaming\n"));
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disconnect_and_exit(1);
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exit(1);
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}
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/*
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@ -1857,7 +1857,7 @@ BaseBackup(void)
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* Run IDENTIFY_SYSTEM so we can get the timeline
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*/
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if (!RunIdentifySystem(conn, &sysidentifier, &latesttli, NULL, NULL))
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disconnect_and_exit(1);
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exit(1);
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/*
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* Start the actual backup
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@ -1896,7 +1896,7 @@ BaseBackup(void)
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{
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fprintf(stderr, _("%s: could not send replication command \"%s\": %s"),
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progname, "BASE_BACKUP", PQerrorMessage(conn));
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disconnect_and_exit(1);
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exit(1);
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}
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/*
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@ -1907,14 +1907,14 @@ BaseBackup(void)
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{
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fprintf(stderr, _("%s: could not initiate base backup: %s"),
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progname, PQerrorMessage(conn));
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disconnect_and_exit(1);
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exit(1);
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}
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if (PQntuples(res) != 1)
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{
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fprintf(stderr,
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_("%s: server returned unexpected response to BASE_BACKUP command; got %d rows and %d fields, expected %d rows and %d fields\n"),
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progname, PQntuples(res), PQnfields(res), 1, 2);
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disconnect_and_exit(1);
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exit(1);
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}
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strlcpy(xlogstart, PQgetvalue(res, 0, 0), sizeof(xlogstart));
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@ -1946,12 +1946,12 @@ BaseBackup(void)
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{
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fprintf(stderr, _("%s: could not get backup header: %s"),
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progname, PQerrorMessage(conn));
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disconnect_and_exit(1);
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exit(1);
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}
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if (PQntuples(res) < 1)
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{
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fprintf(stderr, _("%s: no data returned from server\n"), progname);
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disconnect_and_exit(1);
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exit(1);
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}
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/*
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@ -1984,7 +1984,7 @@ BaseBackup(void)
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fprintf(stderr,
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_("%s: can only write single tablespace to stdout, database has %d\n"),
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progname, PQntuples(res));
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disconnect_and_exit(1);
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exit(1);
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}
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/*
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@ -2028,14 +2028,14 @@ BaseBackup(void)
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fprintf(stderr,
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_("%s: could not get write-ahead log end position from server: %s"),
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progname, PQerrorMessage(conn));
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disconnect_and_exit(1);
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exit(1);
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}
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if (PQntuples(res) != 1)
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{
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fprintf(stderr,
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_("%s: no write-ahead log end position returned from server\n"),
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||||
progname);
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
strlcpy(xlogend, PQgetvalue(res, 0, 0), sizeof(xlogend));
|
||||
if (verbose && includewal != NO_WAL)
|
||||
@ -2059,7 +2059,7 @@ BaseBackup(void)
|
||||
fprintf(stderr, _("%s: final receive failed: %s"),
|
||||
progname, PQerrorMessage(conn));
|
||||
}
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if (bgchild > 0)
|
||||
@ -2089,7 +2089,7 @@ BaseBackup(void)
|
||||
fprintf(stderr,
|
||||
_("%s: could not send command to background pipe: %s\n"),
|
||||
progname, strerror(errno));
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* Just wait for the background process to exit */
|
||||
@ -2098,19 +2098,19 @@ BaseBackup(void)
|
||||
{
|
||||
fprintf(stderr, _("%s: could not wait for child process: %s\n"),
|
||||
progname, strerror(errno));
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
if (r != bgchild)
|
||||
{
|
||||
fprintf(stderr, _("%s: child %d died, expected %d\n"),
|
||||
progname, (int) r, (int) bgchild);
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
if (status != 0)
|
||||
{
|
||||
fprintf(stderr, "%s: %s\n",
|
||||
progname, wait_result_to_str(status));
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
/* Exited normally, we're happy! */
|
||||
#else /* WIN32 */
|
||||
@ -2125,7 +2125,7 @@ BaseBackup(void)
|
||||
fprintf(stderr,
|
||||
_("%s: could not parse write-ahead log location \"%s\"\n"),
|
||||
progname, xlogend);
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
xlogendptr = ((uint64) hi) << 32 | lo;
|
||||
InterlockedIncrement(&has_xlogendptr);
|
||||
@ -2137,20 +2137,20 @@ BaseBackup(void)
|
||||
_dosmaperr(GetLastError());
|
||||
fprintf(stderr, _("%s: could not wait for child thread: %s\n"),
|
||||
progname, strerror(errno));
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
if (GetExitCodeThread((HANDLE) bgchild_handle, &status) == 0)
|
||||
{
|
||||
_dosmaperr(GetLastError());
|
||||
fprintf(stderr, _("%s: could not get child thread exit status: %s\n"),
|
||||
progname, strerror(errno));
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
if (status != 0)
|
||||
{
|
||||
fprintf(stderr, _("%s: child thread exited with error %u\n"),
|
||||
progname, (unsigned int) status);
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
/* Exited normally, we're happy */
|
||||
#endif
|
||||
@ -2164,6 +2164,7 @@ BaseBackup(void)
|
||||
*/
|
||||
PQclear(res);
|
||||
PQfinish(conn);
|
||||
conn = NULL;
|
||||
|
||||
/*
|
||||
* Make data persistent on disk once backup is completed. For tar format
|
||||
@ -2542,6 +2543,7 @@ main(int argc, char **argv)
|
||||
/* Error message already written in GetConnection() */
|
||||
exit(1);
|
||||
}
|
||||
atexit(disconnect_atexit);
|
||||
|
||||
/*
|
||||
* Set umask so that directories/files are created with the same
|
||||
@ -2563,7 +2565,7 @@ main(int argc, char **argv)
|
||||
|
||||
/* determine remote server's xlog segment size */
|
||||
if (!RetrieveWalSegSize(conn))
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
|
||||
/* Create pg_wal symlink, if required */
|
||||
if (xlog_dir)
|
||||
@ -2585,11 +2587,11 @@ main(int argc, char **argv)
|
||||
{
|
||||
fprintf(stderr, _("%s: could not create symbolic link \"%s\": %s\n"),
|
||||
progname, linkloc, strerror(errno));
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
#else
|
||||
fprintf(stderr, _("%s: symlinks are not supported on this platform\n"), progname);
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
#endif
|
||||
free(linkloc);
|
||||
}
|
||||
|
@ -55,11 +55,12 @@ static void StreamLog(void);
|
||||
static bool stop_streaming(XLogRecPtr segendpos, uint32 timeline,
|
||||
bool segment_finished);
|
||||
|
||||
#define disconnect_and_exit(code) \
|
||||
{ \
|
||||
if (conn != NULL) PQfinish(conn); \
|
||||
exit(code); \
|
||||
}
|
||||
static void
|
||||
disconnect_atexit(void)
|
||||
{
|
||||
if (conn != NULL)
|
||||
PQfinish(conn);
|
||||
}
|
||||
|
||||
/* Routines to evaluate segment file format */
|
||||
#define IsCompressXLogFileName(fname) \
|
||||
@ -168,7 +169,7 @@ get_destination_dir(char *dest_folder)
|
||||
{
|
||||
fprintf(stderr, _("%s: could not open directory \"%s\": %s\n"),
|
||||
progname, basedir, strerror(errno));
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
return dir;
|
||||
@ -186,7 +187,7 @@ close_destination_dir(DIR *dest_dir, char *dest_folder)
|
||||
{
|
||||
fprintf(stderr, _("%s: could not close directory \"%s\": %s\n"),
|
||||
progname, dest_folder, strerror(errno));
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
@ -267,7 +268,7 @@ FindStreamingStart(uint32 *tli)
|
||||
{
|
||||
fprintf(stderr, _("%s: could not stat file \"%s\": %s\n"),
|
||||
progname, fullpath, strerror(errno));
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if (statbuf.st_size != WalSegSz)
|
||||
@ -293,13 +294,13 @@ FindStreamingStart(uint32 *tli)
|
||||
{
|
||||
fprintf(stderr, _("%s: could not open compressed file \"%s\": %s\n"),
|
||||
progname, fullpath, strerror(errno));
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
if (lseek(fd, (off_t) (-4), SEEK_END) < 0)
|
||||
{
|
||||
fprintf(stderr, _("%s: could not seek in compressed file \"%s\": %s\n"),
|
||||
progname, fullpath, strerror(errno));
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
r = read(fd, (char *) buf, sizeof(buf));
|
||||
if (r != sizeof(buf))
|
||||
@ -310,7 +311,7 @@ FindStreamingStart(uint32 *tli)
|
||||
else
|
||||
fprintf(stderr, _("%s: could not read compressed file \"%s\": read %d of %zu\n"),
|
||||
progname, fullpath, r, sizeof(buf));
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
close(fd);
|
||||
@ -341,7 +342,7 @@ FindStreamingStart(uint32 *tli)
|
||||
{
|
||||
fprintf(stderr, _("%s: could not read directory \"%s\": %s\n"),
|
||||
progname, basedir, strerror(errno));
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
close_destination_dir(dir, basedir);
|
||||
@ -395,7 +396,7 @@ StreamLog(void)
|
||||
* There's no hope of recovering from a version mismatch, so don't
|
||||
* retry.
|
||||
*/
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -404,7 +405,7 @@ StreamLog(void)
|
||||
* existing output directory.
|
||||
*/
|
||||
if (!RunIdentifySystem(conn, NULL, &servertli, &serverpos, NULL))
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
|
||||
/*
|
||||
* Figure out where to start streaming.
|
||||
@ -452,6 +453,7 @@ StreamLog(void)
|
||||
}
|
||||
|
||||
PQfinish(conn);
|
||||
conn = NULL;
|
||||
|
||||
FreeWalDirectoryMethod();
|
||||
pg_free(stream.walmethod);
|
||||
@ -701,6 +703,7 @@ main(int argc, char **argv)
|
||||
if (!conn)
|
||||
/* error message already written in GetConnection() */
|
||||
exit(1);
|
||||
atexit(disconnect_atexit);
|
||||
|
||||
/*
|
||||
* Run IDENTIFY_SYSTEM to make sure we've successfully have established a
|
||||
@ -708,7 +711,7 @@ main(int argc, char **argv)
|
||||
* connection.
|
||||
*/
|
||||
if (!RunIdentifySystem(conn, NULL, NULL, NULL, &db_name))
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
|
||||
/*
|
||||
* Set umask so that directories/files are created with the same
|
||||
@ -722,7 +725,7 @@ main(int argc, char **argv)
|
||||
|
||||
/* determine remote server's xlog segment size */
|
||||
if (!RetrieveWalSegSize(conn))
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
|
||||
/*
|
||||
* Check that there is a database associated with connection, none should
|
||||
@ -733,7 +736,7 @@ main(int argc, char **argv)
|
||||
fprintf(stderr,
|
||||
_("%s: replication connection using slot \"%s\" is unexpectedly database specific\n"),
|
||||
progname, replication_slot);
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -747,8 +750,8 @@ main(int argc, char **argv)
|
||||
progname, replication_slot);
|
||||
|
||||
if (!DropReplicationSlot(conn, replication_slot))
|
||||
disconnect_and_exit(1);
|
||||
disconnect_and_exit(0);
|
||||
exit(1);
|
||||
exit(0);
|
||||
}
|
||||
|
||||
/* Create a replication slot */
|
||||
@ -761,8 +764,8 @@ main(int argc, char **argv)
|
||||
|
||||
if (!CreateReplicationSlot(conn, replication_slot, NULL, false, true, false,
|
||||
slot_exists_ok))
|
||||
disconnect_and_exit(1);
|
||||
disconnect_and_exit(0);
|
||||
exit(1);
|
||||
exit(0);
|
||||
}
|
||||
|
||||
/*
|
||||
|
@ -65,7 +65,6 @@ static XLogRecPtr output_fsync_lsn = InvalidXLogRecPtr;
|
||||
|
||||
static void usage(void);
|
||||
static void StreamLogicalLog(void);
|
||||
static void disconnect_and_exit(int code) pg_attribute_noreturn();
|
||||
static bool flushAndSendFeedback(PGconn *conn, TimestampTz *now);
|
||||
static void prepareToTerminate(PGconn *conn, XLogRecPtr endpos,
|
||||
bool keepalive, XLogRecPtr lsn);
|
||||
@ -167,12 +166,10 @@ sendFeedback(PGconn *conn, TimestampTz now, bool force, bool replyRequested)
|
||||
}
|
||||
|
||||
static void
|
||||
disconnect_and_exit(int code)
|
||||
disconnect_atexit(void)
|
||||
{
|
||||
if (conn != NULL)
|
||||
PQfinish(conn);
|
||||
|
||||
exit(code);
|
||||
}
|
||||
|
||||
static bool
|
||||
@ -944,20 +941,21 @@ main(int argc, char **argv)
|
||||
if (!conn)
|
||||
/* Error message already written in GetConnection() */
|
||||
exit(1);
|
||||
atexit(disconnect_atexit);
|
||||
|
||||
/*
|
||||
* Run IDENTIFY_SYSTEM to make sure we connected using a database specific
|
||||
* replication connection.
|
||||
*/
|
||||
if (!RunIdentifySystem(conn, NULL, NULL, NULL, &db_name))
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
|
||||
if (db_name == NULL)
|
||||
{
|
||||
fprintf(stderr,
|
||||
_("%s: could not establish database-specific replication connection\n"),
|
||||
progname);
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -979,7 +977,7 @@ main(int argc, char **argv)
|
||||
progname, replication_slot);
|
||||
|
||||
if (!DropReplicationSlot(conn, replication_slot))
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* Create a replication slot. */
|
||||
@ -992,12 +990,12 @@ main(int argc, char **argv)
|
||||
|
||||
if (!CreateReplicationSlot(conn, replication_slot, plugin, false,
|
||||
false, false, slot_exists_ok))
|
||||
disconnect_and_exit(1);
|
||||
exit(1);
|
||||
startpos = InvalidXLogRecPtr;
|
||||
}
|
||||
|
||||
if (!do_start_slot)
|
||||
disconnect_and_exit(0);
|
||||
exit(0);
|
||||
|
||||
/* Stream loop */
|
||||
while (true)
|
||||
@ -1009,7 +1007,7 @@ main(int argc, char **argv)
|
||||
* We've been Ctrl-C'ed or reached an exit limit condition. That's
|
||||
* not an error, so exit without an errorcode.
|
||||
*/
|
||||
disconnect_and_exit(0);
|
||||
exit(0);
|
||||
}
|
||||
else if (noloop)
|
||||
{
|
||||
|
Loading…
x
Reference in New Issue
Block a user