1 files changed, 72 insertions, 0 deletions
diff --git a/src/include/gtm/assert.h b/src/include/gtm/assert.h
new file mode 100644
index 0000000000..5c71363832
--- /dev/null
+++ b/src/include/gtm/assert.h
@@ -0,0 +1,72 @@
+/*-------------------------------------------------------------------------
+ *
+ * assert.h
+ *
+ *
+ * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ * Portions Copyright (c) 2010 Nippon Telegraph and Telephone Corporation
+ *
+ * $PostgreSQL$
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef GTM_ASSERT_H
+#define GTM_ASSERT_H
+
+extern bool assert_enabled;
+
+/*
+ * USE_ASSERT_CHECKING, if defined, turns on all the assertions.
+ * - plai  9/5/90
+ *
+ * It should _NOT_ be defined in releases or in benchmark copies
+ */
+
+/*
+ * Trap
+ *		Generates an exception if the given condition is true.
+ */
+#define Trap(condition, errorType) \
+	do { \
+		if ((assert_enabled) && (condition)) \
+			ExceptionalCondition(CppAsString(condition), (errorType), \
+								 __FILE__, __LINE__); \
+	} while (0)
+
+/*
+ *	TrapMacro is the same as Trap but it's intended for use in macros:
+ *
+ *		#define foo(x) (AssertMacro(x != 0) && bar(x))
+ *
+ *	Isn't CPP fun?
+ */
+#define TrapMacro(condition, errorType) \
+	((bool) ((! assert_enabled) || ! (condition) || \
+			 (ExceptionalCondition(CppAsString(condition), (errorType), \
+								   __FILE__, __LINE__))))
+
+#ifndef USE_ASSERT_CHECKING
+#define Assert(condition)
+#define AssertMacro(condition)	((void)true)
+#define AssertArg(condition)
+#define AssertState(condition)
+#else
+#define Assert(condition) \
+		Trap(!(condition), "FailedAssertion")
+
+#define AssertMacro(condition) \
+		((void) TrapMacro(!(condition), "FailedAssertion"))
+
+#define AssertArg(condition) \
+		Trap(!(condition), "BadArgument")
+
+#define AssertState(condition) \
+		Trap(!(condition), "BadState")
+#endif   /* USE_ASSERT_CHECKING */
+
+extern int ExceptionalCondition(const char *conditionName,
+					 const char *errorType,
+					 const char *fileName, int lineNumber);
+
+#endif