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authorjulian <julian@FreeBSD.org>1996-01-22 00:02:33 +0000
committerjulian <julian@FreeBSD.org>1996-01-22 00:02:33 +0000
commit619b731f5bb5e09dcf1eaf1fbd96383ca64398fd (patch)
treea89c7f50ec371cef4418259b9dccdd31ebb2f61f /lib/libc/stdio/getchar.c
parent663b14fb2f3198fb0bfb62ae16b6b56c2a4dd055 (diff)
downloadFreeBSD-src-619b731f5bb5e09dcf1eaf1fbd96383ca64398fd.zip
FreeBSD-src-619b731f5bb5e09dcf1eaf1fbd96383ca64398fd.tar.gz
Reviewed by: julian and (hsu?)
Submitted by: John Birrel(L?) changes for threadsafe operations
Diffstat (limited to 'lib/libc/stdio/getchar.c')
-rw-r--r--lib/libc/stdio/getchar.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/lib/libc/stdio/getchar.c b/lib/libc/stdio/getchar.c
index 20e52b7..7aeef8a 100644
--- a/lib/libc/stdio/getchar.c
+++ b/lib/libc/stdio/getchar.c
@@ -42,10 +42,23 @@ static char sccsid[] = "@(#)getchar.c 8.1 (Berkeley) 6/4/93";
* A subroutine version of the macro getchar.
*/
#include <stdio.h>
+#ifdef _THREAD_SAFE
+#include <pthread.h>
+#include "pthread_private.h"
+#endif
#undef getchar
+int
getchar()
{
- return (getc(stdin));
+ int retval;
+#ifdef _THREAD_SAFE
+ _thread_flockfile(stdin,__FILE__,__LINE__);
+#endif
+ retval = getc(stdin);
+#ifdef _THREAD_SAFE
+ _thread_funlockfile(stdin);
+#endif
+ return (retval);
}
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