1 files changed, 113 insertions, 0 deletions
diff --git a/storage/innobase/include/ut0dbg.h b/storage/innobase/include/ut0dbg.h
new file mode 100644
index 00000000000..a317f35f4be
--- /dev/null
+++ b/storage/innobase/include/ut0dbg.h
@@ -0,0 +1,113 @@
+/*********************************************************************
+Debug utilities for Innobase
+
+(c) 1994, 1995 Innobase Oy
+
+Created 1/30/1994 Heikki Tuuri
+**********************************************************************/
+
+#ifndef ut0dbg_h
+#define ut0dbg_h
+
+#include "univ.i"
+#include <stdlib.h>
+#include "os0thread.h"
+
+#if defined(__GNUC__) && (__GNUC__ > 2)
+# define UT_DBG_FAIL(EXPR) UNIV_UNLIKELY(!((ulint)(EXPR)))
+#else
+extern ulint	ut_dbg_zero; /* This is used to eliminate
+				compiler warnings */
+# define UT_DBG_FAIL(EXPR) !((ulint)(EXPR) + ut_dbg_zero)
+#endif
+
+/*****************************************************************
+Report a failed assertion. */
+
+void
+ut_dbg_assertion_failed(
+/*====================*/
+	const char* expr,	/* in: the failed assertion */
+	const char* file,	/* in: source file containing the assertion */
+	ulint line);		/* in: line number of the assertion */
+
+#ifdef __NETWARE__
+/* Flag for ignoring further assertion failures.
+On NetWare, have a graceful exit rather than a segfault to avoid abends. */
+extern ibool	panic_shutdown;
+/* Abort the execution. */
+void ut_dbg_panic(void);
+# define UT_DBG_PANIC ut_dbg_panic()
+/* Stop threads in ut_a(). */
+# define UT_DBG_STOP	while (0)	/* We do not do this on NetWare */
+#else /* __NETWARE__ */
+# if defined(__WIN__) || defined(__INTEL_COMPILER)
+#  undef UT_DBG_USE_ABORT
+# elif defined(__GNUC__) && (__GNUC__ > 2)
+#  define UT_DBG_USE_ABORT
+# endif
+
+# ifndef UT_DBG_USE_ABORT
+/* A null pointer that will be dereferenced to trigger a memory trap */
+extern ulint*	ut_dbg_null_ptr;
+# endif
+
+# if defined(UNIV_SYNC_DEBUG) || !defined(UT_DBG_USE_ABORT)
+/* Flag for indicating that all threads should stop.  This will be set
+by ut_dbg_assertion_failed(). */
+extern ibool	ut_dbg_stop_threads;
+
+/*****************************************************************
+Stop a thread after assertion failure. */
+
+void
+ut_dbg_stop_thread(
+/*===============*/
+	const char*	file,
+	ulint		line);
+# endif
+
+# ifdef UT_DBG_USE_ABORT
+/* Abort the execution. */
+#  define UT_DBG_PANIC abort()
+/* Stop threads (null operation) */
+#  define UT_DBG_STOP while (0)
+# else /* UT_DBG_USE_ABORT */
+/* Abort the execution. */
+#  define UT_DBG_PANIC					\
+	if (*(ut_dbg_null_ptr)) ut_dbg_null_ptr = NULL
+/* Stop threads in ut_a(). */
+#  define UT_DBG_STOP do						\
+	if (UNIV_UNLIKELY(ut_dbg_stop_threads)) {		\
+		ut_dbg_stop_thread(__FILE__, (ulint) __LINE__);	\
+	} while (0)
+# endif /* UT_DBG_USE_ABORT */
+#endif /* __NETWARE__ */
+
+/* Abort execution if EXPR does not evaluate to nonzero. */
+#define ut_a(EXPR) do {						\
+	if (UT_DBG_FAIL(EXPR)) {				\
+		ut_dbg_assertion_failed(#EXPR,			\
+				__FILE__, (ulint) __LINE__);	\
+		UT_DBG_PANIC;					\
+	}							\
+	UT_DBG_STOP;						\
+} while (0)
+
+/* Abort execution. */
+#define ut_error do {						\
+	ut_dbg_assertion_failed(0, __FILE__, (ulint) __LINE__);	\
+	UT_DBG_PANIC;						\
+} while (0)
+
+#ifdef UNIV_DEBUG
+#define ut_ad(EXPR)	ut_a(EXPR)
+#define ut_d(EXPR)	do {EXPR;} while (0)
+#else
+#define ut_ad(EXPR)
+#define ut_d(EXPR)
+#endif
+
+#define UT_NOT_USED(A)	A = A
+
+#endif