Module Name: src
Committed By: christos
Date: Fri Nov 6 15:41:25 UTC 2015
Modified Files:
src/sys/sys: fd_set.h
Log Message:
Generalize the length macro, and also provide a macro that returns the size
in bytes needed for a given fd.
To generate a diff of this commit:
cvs rdiff -u -r1.5 -r1.6 src/sys/sys/fd_set.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/sys/fd_set.h
diff -u src/sys/sys/fd_set.h:1.5 src/sys/sys/fd_set.h:1.6
--- src/sys/sys/fd_set.h:1.5 Thu Jul 8 14:56:17 2010
+++ src/sys/sys/fd_set.h Fri Nov 6 10:41:25 2015
@@ -1,4 +1,4 @@
-/* $NetBSD: fd_set.h,v 1.5 2010/07/08 18:56:17 rmind Exp $ */
+/* $NetBSD: fd_set.h,v 1.6 2015/11/06 15:41:25 christos Exp $ */
/*-
* Copyright (c) 1992, 1993
@@ -59,7 +59,9 @@ typedef __uint32_t __fd_mask;
#define FD_SETSIZE 256
#endif
-#define __NFD_SIZE (((FD_SETSIZE) + (__NFDBITS - 1)) / __NFDBITS)
+#define __NFD_LEN(a) (((a) + (__NFDBITS - 1)) / __NFDBITS)
+#define __NFD_SIZE __NFD_LEN(FD_SETSIZE)
+#define __NFD_BYTES(a) (__NFD_LEN(a) * sizeof(__fd_mask))
typedef struct fd_set {
__fd_mask fds_bits[__NFD_SIZE];
