From ec216c263498f3ab7c5554f5c5571125b57024b8 Mon Sep 17 00:00:00 2001
From: John Birrell <jb@FreeBSD.org>
Date: Sat, 11 Apr 1998 07:40:47 +0000
Subject: Add FILE locking stubs for libc.

Change the FILE locking to support kernel threads when linked with
libpthread (which you haven't see yet). This requires that libc become
thread-safe and thread-aware, testing __isthreaded before attempting
to do lock/unlock calls. The impact on non-threaded programs is minor.
This change works with libc_r, so it's the best compromise.
---
 lib/libc/stdio/fputc.c | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

(limited to 'lib/libc/stdio/fputc.c')

diff --git a/lib/libc/stdio/fputc.c b/lib/libc/stdio/fputc.c
index 89b138d15a0a..d1f5e6c079a8 100644
--- a/lib/libc/stdio/fputc.c
+++ b/lib/libc/stdio/fputc.c
@@ -39,14 +39,11 @@
 static char sccsid[] = "@(#)fputc.c	8.1 (Berkeley) 6/4/93";
 #endif
 static const char rcsid[] =
-		"$Id$";
+		"$Id: fputc.c,v 1.5 1997/02/22 15:02:00 peter Exp $";
 #endif /* LIBC_SCCS and not lint */
 
 #include <stdio.h>
-#ifdef _THREAD_SAFE
-#include <pthread.h>
-#include "pthread_private.h"
-#endif
+#include "libc_private.h"
 
 int
 fputc(c, fp)
@@ -54,12 +51,8 @@ fputc(c, fp)
 	register FILE *fp;
 {
 	int retval;
-#ifdef _THREAD_SAFE
-	_thread_flockfile(fp,__FILE__,__LINE__);
-#endif
+	FLOCKFILE(fp);
 	retval = putc(c, fp);
-#ifdef _THREAD_SAFE
-	_thread_funlockfile(fp);
-#endif
+	FUNLOCKFILE(fp);
 	return (retval);
 }
-- 
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