Add infrastructure to save and restore GUC values.

This is further infrastructure for parallelism.

Amit Khandekar, Noah Misch, Robert Haas

1 files changed, 7 insertions, 1 deletions

diff --git a/src/include/utils/guc.h b/src/include/utils/guc.h
index 2b2aaf4ac26..395858b1022 100644
--- a/src/include/utils/guc.h
+++ b/src/include/utils/guc.h
@@ -339,7 +339,8 @@ extern bool parse_int(const char *value, int *result, int flags,
 extern bool parse_real(const char *value, double *result);
 extern int set_config_option(const char *name, const char *value,
 				  GucContext context, GucSource source,
-				  GucAction action, bool changeVal, int elevel);
+				  GucAction action, bool changeVal, int elevel,
+				  bool is_reload);
 extern void AlterSystemSetConfigFile(AlterSystemStmt *setstmt);
 extern char *GetConfigOptionByName(const char *name, const char **varname);
 extern void GetConfigOptionByNum(int varnum, const char **values, bool *noshow);
@@ -363,6 +364,11 @@ extern void write_nondefault_variables(GucContext context);
 extern void read_nondefault_variables(void);
 #endif
 
+/* GUC serialization */
+extern Size EstimateGUCStateSpace(void);
+extern void SerializeGUCState(Size maxsize, char *start_address);
+extern void RestoreGUCState(void *gucstate);
+
 /* Support for messages reported from GUC check hooks */
 
 extern PGDLLIMPORT char *GUC_check_errmsg_string;