1 files changed, 49 insertions, 1 deletions
diff --git a/src/include/utils/guc.h b/src/include/utils/guc.h
index ca1f87b1fe1..707dca33910 100644
--- a/src/include/utils/guc.h
+++ b/src/include/utils/guc.h
@@ -7,7 +7,7 @@
  * Copyright (c) 2000-2003, PostgreSQL Global Development Group
  * Written by Peter Eisentraut <peter_e@gmx.net>.
  *
- * $PostgreSQL: pgsql/src/include/utils/guc.h,v 1.45 2004/04/07 05:05:50 momjian Exp $
+ * $PostgreSQL: pgsql/src/include/utils/guc.h,v 1.46 2004/05/26 15:07:41 momjian Exp $
  *--------------------------------------------------------------------
  */
 #ifndef GUC_H
@@ -102,6 +102,15 @@ typedef enum
 	PGC_S_SESSION				/* SET command */
 } GucSource;
 
+typedef const char* (*GucStringAssignHook)(const char *newval, bool doit, GucSource source);
+typedef bool (*GucBoolAssignHook)(bool newval, bool doit, GucSource source);
+typedef bool (*GucIntAssignHook)(int newval, bool doit, GucSource source);
+typedef bool (*GucRealAssignHook)(double newval, bool doit, GucSource source);
+
+typedef const char* (*GucShowHook)(void);
+
+#define GUC_QUALIFIER_SEPARATOR '.'
+
 /* GUC vars that are actually declared in guc.c, rather than elsewhere */
 extern bool log_duration;
 extern bool Debug_print_plan;
@@ -129,6 +138,45 @@ extern int	log_min_duration_statement;
 
 extern void SetConfigOption(const char *name, const char *value,
 				GucContext context, GucSource source);
+
+extern void DefineCustomBoolVariable(
+	const char* name,
+	const char* short_desc,
+	const char* long_desc,
+	bool*       valueAddr,
+	GucContext  context,
+	GucBoolAssignHook assign_hook,
+	GucShowHook show_hook);
+
+extern void DefineCustomIntVariable(
+	const char* name,
+	const char* short_desc,
+	const char* long_desc,
+	int*        valueAddr,
+	GucContext  context,
+	GucIntAssignHook assign_hook,
+	GucShowHook show_hook);
+
+extern void DefineCustomRealVariable(
+	const char* name,
+	const char* short_desc,
+	const char* long_desc,
+	double*     valueAddr,
+	GucContext  context,
+	GucRealAssignHook assign_hook,
+	GucShowHook show_hook);
+
+extern void DefineCustomStringVariable(
+	const char* name,
+	const char* short_desc,
+	const char* long_desc,
+	char**      valueAddr,
+	GucContext  context,
+	GucStringAssignHook assign_hook,
+	GucShowHook show_hook);
+
+extern void EmittWarningsOnPlaceholders(const char* className);
+
 extern const char *GetConfigOption(const char *name);
 extern const char *GetConfigOptionResetString(const char *name);
 extern void ProcessConfigFile(GucContext context);