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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/fread.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/fread.c')
-rw-r--r--lib/libc/stdio/fread.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/libc/stdio/fread.c b/lib/libc/stdio/fread.c
index 22436ec..7132e85 100644
--- a/lib/libc/stdio/fread.c
+++ b/lib/libc/stdio/fread.c
@@ -40,6 +40,11 @@ static char sccsid[] = "@(#)fread.c 8.2 (Berkeley) 12/11/93";
#include <stdio.h>
#include <string.h>
+#include "local.h"
+#ifdef _THREAD_SAFE
+#include <pthread.h>
+#include "pthread_private.h"
+#endif
size_t
fread(buf, size, count, fp)
@@ -59,6 +64,9 @@ fread(buf, size, count, fp)
*/
if ((resid = count * size) == 0)
return (0);
+#ifdef _THREAD_SAFE
+ _thread_flockfile(fp,__FILE__,__LINE__);
+#endif
if (fp->_r < 0)
fp->_r = 0;
total = resid;
@@ -77,5 +85,8 @@ fread(buf, size, count, fp)
(void)memcpy((void *)p, (void *)fp->_p, resid);
fp->_r -= resid;
fp->_p += resid;
+#ifdef _THREAD_SAFE
+ _thread_funlockfile(fp);
+#endif
return (count);
}
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