From 52f00e4396ef3d5f47122233da72feb932ce3f8e Mon Sep 17 00:00:00 2001
From: Marc Espie <espie@cvs.openbsd.org>
Date: Thu, 14 Sep 2000 13:52:43 +0000
Subject: Introduce a few macros to handle timestamps in an abstract way.

Replace the time stamp hash in dir.c with an open hashing structure.

In doing so, remove some nasty casts, simplify code a bit:
Dir_MTime can return a modification time, since make does not make
a distinction between out-of-date and non-existent files.
---
 usr.bin/make/make.h | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

(limited to 'usr.bin/make/make.h')

diff --git a/usr.bin/make/make.h b/usr.bin/make/make.h
index 386ba0b8c65..9592bfeb28d 100644
--- a/usr.bin/make/make.h
+++ b/usr.bin/make/make.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: make.h,v 1.26 2000/09/14 13:40:03 espie Exp $	*/
+/*	$OpenBSD: make.h,v 1.27 2000/09/14 13:52:42 espie Exp $	*/
 /*	$NetBSD: make.h,v 1.15 1997/03/10 21:20:00 christos Exp $	*/
 
 /*
@@ -90,6 +90,25 @@
 #include "config.h"
 #include "buf.h"
 
+typedef time_t TIMESTAMP;
+#define is_out_of_date(t)	((t) == INT_MIN)
+#define set_out_of_date(t)	(t) = INT_MIN
+#define grab_stat(s, t)	\
+do { \
+	(t) = (s).st_mtime; \
+	if (is_out_of_date(t)) \
+		(t)++; \
+} while (0)
+#define is_before(t1, t2)	((t1) < (t2))
+#define grab_date(d, t) \
+do { \
+	(t) = d; \
+	if (is_out_of_date(t)) \
+		(t)++; \
+} while (0)
+#define grab(n) time(&(n))
+#define timestamp2time_t(t)	(t)
+
 #define OUT_OF_DATE INT_MIN
 
 /* Variables that are kept in local GNodes.  */
-- 
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