patch-1.3.2 linux/include/asm-alpha/types.h

• Lines: 58
• Date: Fri Jun 16 20:03:02 1995
• Orig file: v1.3.1/linux/include/asm-alpha/types.h
• Orig date: Fri Jun 2 13:51:17 1995

diff -u --recursive --new-file v1.3.1/linux/include/asm-alpha/types.h linux/include/asm-alpha/types.h
@@ -99,4 +99,57 @@
 
 #endif /* __KERNEL__ */
 
+#undef __FD_SET
+static inline void __FD_SET(unsigned long fd, fd_set *fdsetp)
+{
+	unsigned long _tmp = fd / __NFDBITS;
+	unsigned long _rem = fd % __NFDBITS;
+	fdsetp->fds_bits[_tmp] |= (1UL<<_rem);
+}
+
+#undef __FD_CLR
+static inline void __FD_CLR(unsigned long fd, fd_set *fdsetp)
+{
+	unsigned long _tmp = fd / __NFDBITS;
+	unsigned long _rem = fd % __NFDBITS;
+	fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem);
+}
+
+#undef __FD_ISSET
+static inline int __FD_ISSET(unsigned long fd, fd_set *p)
+{ 
+	unsigned long _tmp = fd / __NFDBITS;
+	unsigned long _rem = fd % __NFDBITS;
+	return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0;
+}
+
+/*
+ * This will unroll the loop for the normal constant cases (4 or 8 longs,
+ * for 256 and 512-bit fd_sets respectively)
+ */
+#undef __FD_ZERO
+static inline void __FD_ZERO(fd_set *p)
+{
+	unsigned long *tmp = p->fds_bits;
+	int i;
+
+	if (__builtin_constant_p(__FDSET_LONGS)) {
+		switch (__FDSET_LONGS) {
+			case 8:
+				tmp[0] = 0; tmp[1] = 0; tmp[2] = 0; tmp[3] = 0;
+				tmp[4] = 0; tmp[5] = 0; tmp[6] = 0; tmp[7] = 0;
+				return;
+			case 4:
+				tmp[0] = 0; tmp[1] = 0; tmp[2] = 0; tmp[3] = 0;
+				return;
+		}
+	}
+	i = __FDSET_LONGS;
+	while (i) {
+		i--;
+		*tmp = 0;
+		tmp++;
+	}
+}
+
 #endif