diff options
| -rw-r--r-- | src/backend/utils/misc/pg_controldata.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/backend/utils/misc/pg_controldata.c b/src/backend/utils/misc/pg_controldata.c index 781f8b87580..fe52cffbf40 100644 --- a/src/backend/utils/misc/pg_controldata.c +++ b/src/backend/utils/misc/pg_controldata.c @@ -24,6 +24,7 @@ #include "common/controldata_utils.h" #include "funcapi.h" #include "miscadmin.h" +#include "storage/lwlock.h" #include "utils/builtins.h" #include "utils/pg_lsn.h" #include "utils/timestamp.h" @@ -54,7 +55,9 @@ pg_control_system(PG_FUNCTION_ARGS) tupdesc = BlessTupleDesc(tupdesc); /* read the control file */ + LWLockAcquire(ControlFileLock, LW_SHARED); ControlFile = get_controlfile(DataDir, &crc_ok); + LWLockRelease(ControlFileLock); if (!crc_ok) ereport(ERROR, (errmsg("calculated CRC checksum does not match value stored in file"))); @@ -132,7 +135,9 @@ pg_control_checkpoint(PG_FUNCTION_ARGS) tupdesc = BlessTupleDesc(tupdesc); /* Read the control file. */ + LWLockAcquire(ControlFileLock, LW_SHARED); ControlFile = get_controlfile(DataDir, &crc_ok); + LWLockRelease(ControlFileLock); if (!crc_ok) ereport(ERROR, (errmsg("calculated CRC checksum does not match value stored in file"))); @@ -235,7 +240,9 @@ pg_control_recovery(PG_FUNCTION_ARGS) tupdesc = BlessTupleDesc(tupdesc); /* read the control file */ + LWLockAcquire(ControlFileLock, LW_SHARED); ControlFile = get_controlfile(DataDir, &crc_ok); + LWLockRelease(ControlFileLock); if (!crc_ok) ereport(ERROR, (errmsg("calculated CRC checksum does not match value stored in file"))); @@ -300,7 +307,9 @@ pg_control_init(PG_FUNCTION_ARGS) tupdesc = BlessTupleDesc(tupdesc); /* read the control file */ + LWLockAcquire(ControlFileLock, LW_SHARED); ControlFile = get_controlfile(DataDir, &crc_ok); + LWLockRelease(ControlFileLock); if (!crc_ok) ereport(ERROR, (errmsg("calculated CRC checksum does not match value stored in file"))); |