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-rw-r--r--src/bin/pg_basebackup/pg_basebackup.c38
1 files changed, 22 insertions, 16 deletions
diff --git a/src/bin/pg_basebackup/pg_basebackup.c b/src/bin/pg_basebackup/pg_basebackup.c
index 3f83d87e506..8ebf24e7717 100644
--- a/src/bin/pg_basebackup/pg_basebackup.c
+++ b/src/bin/pg_basebackup/pg_basebackup.c
@@ -61,6 +61,16 @@ typedef struct TablespaceList
*/
#define MINIMUM_VERSION_FOR_PG_WAL 100000
+/*
+ * Different ways to include WAL
+ */
+typedef enum
+{
+ NO_WAL,
+ FETCH_WAL,
+ STREAM_WAL
+} IncludeWal;
+
/* Global options */
static char *basedir = NULL;
static TablespaceList tablespace_dirs = {NULL, NULL};
@@ -71,8 +81,7 @@ static bool noclean = false;
static bool showprogress = false;
static int verbose = 0;
static int compresslevel = 0;
-static bool includewal = true;
-static bool streamwal = true;
+static IncludeWal includewal = STREAM_WAL;
static bool fastcheckpoint = false;
static bool writerecoveryconf = false;
static bool do_sync = true;
@@ -1697,7 +1706,7 @@ BaseBackup(void)
* If WAL streaming was requested, also check that the server is new
* enough for that.
*/
- if (streamwal && !CheckServerVersionForStreaming(conn))
+ if (includewal == STREAM_WAL && !CheckServerVersionForStreaming(conn))
{
/*
* Error message already written in CheckServerVersionForStreaming(),
@@ -1731,9 +1740,9 @@ BaseBackup(void)
psprintf("BASE_BACKUP LABEL '%s' %s %s %s %s %s %s",
escaped_label,
showprogress ? "PROGRESS" : "",
- includewal && !streamwal ? "WAL" : "",
+ includewal == FETCH_WAL ? "WAL" : "",
fastcheckpoint ? "FAST" : "",
- includewal ? "NOWAIT" : "",
+ includewal == NO_WAL ? "" : "NOWAIT",
maxrate_clause ? maxrate_clause : "",
format == 't' ? "TABLESPACE_MAP" : "");
@@ -1776,7 +1785,7 @@ BaseBackup(void)
PQclear(res);
MemSet(xlogend, 0, sizeof(xlogend));
- if (verbose && includewal)
+ if (verbose && includewal != NO_WAL)
fprintf(stderr, _("transaction log start point: %s on timeline %u\n"),
xlogstart, starttli);
@@ -1833,7 +1842,7 @@ BaseBackup(void)
* If we're streaming WAL, start the streaming session before we start
* receiving the actual data chunks.
*/
- if (streamwal)
+ if (includewal == STREAM_WAL)
{
if (verbose)
fprintf(stderr, _("%s: starting background WAL receiver\n"),
@@ -1879,7 +1888,7 @@ BaseBackup(void)
disconnect_and_exit(1);
}
strlcpy(xlogend, PQgetvalue(res, 0, 0), sizeof(xlogend));
- if (verbose && includewal)
+ if (verbose && includewal != NO_WAL)
fprintf(stderr, "transaction log end point: %s\n", xlogend);
PQclear(res);
@@ -2117,20 +2126,17 @@ main(int argc, char **argv)
if (strcmp(optarg, "n") == 0 ||
strcmp(optarg, "none") == 0)
{
- includewal = false;
- streamwal = false;
+ includewal = NO_WAL;
}
else if (strcmp(optarg, "f") == 0 ||
strcmp(optarg, "fetch") == 0)
{
- includewal = true;
- streamwal = false;
+ includewal = FETCH_WAL;
}
else if (strcmp(optarg, "s") == 0 ||
strcmp(optarg, "stream") == 0)
{
- includewal = true;
- streamwal = true;
+ includewal = STREAM_WAL;
}
else
{
@@ -2261,7 +2267,7 @@ main(int argc, char **argv)
exit(1);
}
- if (format == 't' && streamwal && strcmp(basedir, "-") == 0)
+ if (format == 't' && includewal == STREAM_WAL && strcmp(basedir, "-") == 0)
{
fprintf(stderr,
_("%s: cannot stream transaction logs in tar mode to stdout\n"),
@@ -2271,7 +2277,7 @@ main(int argc, char **argv)
exit(1);
}
- if (replication_slot && !streamwal)
+ if (replication_slot && includewal != STREAM_WAL)
{
fprintf(stderr,
_("%s: replication slots can only be used with WAL streaming\n"),