Postgres95 1.01 Distribution - Virgin SourcesPG95-1_01

1 files changed, 101 insertions, 0 deletions

diff --git a/src/backend/utils/exc.h b/src/backend/utils/exc.h
new file mode 100644
index 00000000000..487ecca8374
--- /dev/null
+++ b/src/backend/utils/exc.h
@@ -0,0 +1,101 @@
+/*-------------------------------------------------------------------------
+ *
+ * exc.h--
+ *    POSTGRES exception handling definitions.
+ *
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ * $Id: exc.h,v 1.1.1.1 1996/07/09 06:22:01 scrappy Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef	EXC_H
+#define EXC_H
+
+#include "c.h"		/* for Exception, etc. */
+#include <setjmp.h>
+
+extern char *ExcFileName;
+extern Index ExcLineNumber;
+
+/*
+ * ExcMessage and Exception are now defined in c.h
+ */
+
+#if defined(PORTNAME_linux) \
+|| defined(PORTNAME_hpux) \
+|| defined(PORTNAME_next)\
+|| defined(WIN32)
+typedef jmp_buf		ExcContext;
+#else
+typedef sigjmp_buf	ExcContext;
+#endif
+
+typedef Exception*	ExcId;
+typedef long		ExcDetail;
+typedef char*		ExcData;
+
+typedef struct ExcFrame {
+    struct ExcFrame	*link;
+    ExcContext		context;
+    ExcId		id;
+    ExcDetail		detail;
+    ExcData		data;
+    ExcMessage		message;
+} ExcFrame;
+
+extern	ExcFrame*	ExcCurFrameP;
+
+#define	ExcBegin()							\
+	{								\
+		ExcFrame	exception;				\
+									\
+		exception.link = ExcCurFrameP; 				\
+		if (sigsetjmp(exception.context, 1) == 0) {		\
+			ExcCurFrameP = &exception;			\
+			{
+#define	ExcExcept()							\
+			}						\
+			ExcCurFrameP = exception.link;			\
+		} else {						\
+			{
+#define	ExcEnd()							\
+			}						\
+		}							\
+	}
+
+#define raise4(x, t, d, message) \
+	ExcRaise(&(x), (ExcDetail)(t), (ExcData)(d), (ExcMessage)(message))
+
+#define	reraise() \
+	raise4(*exception.id,exception.detail,exception.data,exception.message)
+
+typedef	void ExcProc(Exception*, ExcDetail, ExcData, ExcMessage);
+
+
+/*
+ * prototypes for functions in exc.c
+ */
+extern void EnableExceptionHandling(bool on);
+extern void ExcPrint(Exception *excP, ExcDetail detail, ExcData data,
+		     ExcMessage message);
+extern ExcProc *ExcGetUnCaught();
+extern ExcProc *ExcSetUnCaught(ExcProc *newP);
+extern void ExcUnCaught(Exception *excP, ExcDetail detail, ExcData data,
+			ExcMessage message);
+extern void ExcUnCaught(Exception *excP, ExcDetail detail, ExcData data,
+			ExcMessage message);
+extern void ExcRaise(Exception *excP,
+		     ExcDetail detail,
+		     ExcData    data,
+		     ExcMessage message);
+
+
+/*
+ * prototypes for functions in excabort.c
+ */
+extern void ExcAbort(const Exception *excP, ExcDetail detail, ExcData data,
+		     ExcMessage message);
+
+#endif	/* EXC_H */