From 4332139a9a11f773ffe5109bed871561e3c290a1 Mon Sep 17 00:00:00 2001
From: gshapiro <gshapiro@FreeBSD.org>
Date: Sat, 12 Aug 2000 21:55:49 +0000
Subject: Import of sendmail version 8.11.0 into vendor branch SENDMAIL with
 release tag v8_11_0.

Obtained from: ftp://ftp.sendmail.org/pub/sendmail/
---
 contrib/sendmail/src/shmticklib.c | 84 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 contrib/sendmail/src/shmticklib.c

(limited to 'contrib/sendmail/src/shmticklib.c')

diff --git a/contrib/sendmail/src/shmticklib.c b/contrib/sendmail/src/shmticklib.c
new file mode 100644
index 0000000..a3e1ad5
--- /dev/null
+++ b/contrib/sendmail/src/shmticklib.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 1999-2000 Sendmail, Inc. and its suppliers.
+ *	All rights reserved.
+ *
+ * By using this file, you agree to the terms and conditions set
+ * forth in the LICENSE file which can be found at the top level of
+ * the sendmail distribution.
+ *
+ * Contributed by Exactis.com, Inc.
+ *
+ */
+
+#ifndef lint
+static char id[] = "@(#)$Id: shmticklib.c,v 8.6 2000/02/26 01:32:27 gshapiro Exp $";
+#endif /* ! lint */
+
+#if _FFR_SHM_STATUS
+# if SFIO
+#  include <sfio/stdio.h>
+# else /* !SFIO */
+#  include <stdio.h>
+# endif /* SFIO */
+# include <sys/types.h>
+# include <sys/ipc.h>
+# include <sys/shm.h>
+
+# include "statusd_shm.h"
+
+/*
+**  SHMTICK -- increment a shared memory variable
+**
+**	Parameters:
+**		inc_me -- identity of shared memory segment
+**		what -- which variable to increment
+**
+**	Returns:
+**		none
+*/
+
+void
+shmtick(inc_me, what)
+	int inc_me;
+	int what;
+{
+	static int shmid = -1;
+	static STATUSD_SHM *sp = (STATUSD_SHM *)-1;
+	static unsigned int cookie = 0;
+
+	if (shmid < 0)
+	{
+		int size = sizeof(STATUSD_SHM);
+
+		shmid = shmget(STATUSD_SHM_KEY, size, 0);
+		if (shmid < 0)
+			return;
+	}
+	if ((unsigned long *)sp == (unsigned long *)-1)
+	{
+		sp = (STATUSD_SHM *)shmat(shmid, NULL, 0);
+		if ((unsigned long *)sp == (unsigned long *)-1)
+			return;
+	}
+	if (sp->magic != STATUSD_MAGIC)
+	{
+		/*
+		**  possible race condition, wait for
+		**  statusd to initialize.
+		*/
+
+		return;
+	}
+	if (what >= STATUSD_LONGS)
+		what = STATUSD_LONGS - 1;
+	if (inc_me >= STATUSD_LONGS)
+		inc_me = STATUSD_LONGS - 1;
+
+	if (sp->ul[STATUSD_COOKIE] != cookie)
+	{
+		cookie = sp->ul[STATUSD_COOKIE];
+		++(sp->ul[inc_me]);
+	}
+	++(sp->ul[what]);
+}
+#endif /* _FFR_SHM_STATUS */
-- 
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