update OpenHarmony 2.0 Canary

libevdev/libevdev-util.h

@@ -0,0 +1,86 @@
+/*
+ * Copyright © 2013 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifndef _UTIL_H_
+#define _UTIL_H_
+
+#include "config.h"
+#include <stdbool.h>
+#include <string.h>
+
+#define LONG_BITS (sizeof(long) * 8)
+#define NLONGS(x) (((x) + LONG_BITS - 1) / LONG_BITS)
+#define ARRAY_LENGTH(a) (sizeof(a) / (sizeof((a)[0])))
+#define unlikely(x) (__builtin_expect(!!(x),0))
+
+#undef min
+#undef max
+#ifdef __GNUC__
+#define min(a,b) \
+		({ __typeof__ (a) _a = (a); \
+	          __typeof__ (b) _b = (b); \
+		_a > _b ? _b : _a; \
+		})
+#define max(a,b) \
+		({ __typeof__ (a) _a = (a); \
+	          __typeof__ (b) _b = (b); \
+		_a > _b ? _a : _b; \
+		})
+#else
+#define min(a,b) ((a) > (b) ? (b) : (a))
+#define max(a,b) ((a) > (b) ? (a) : (b))
+#endif
+
+static inline bool
+startswith(const char *str, size_t len, const char *prefix, size_t plen)
+{
+	return len >= plen && !strncmp(str, prefix, plen);
+}
+
+static inline int
+bit_is_set(const unsigned long *array, int bit)
+{
+    return !!(array[bit / LONG_BITS] & (1LL << (bit % LONG_BITS)));
+}
+
+static inline void
+set_bit(unsigned long *array, int bit)
+{
+    array[bit / LONG_BITS] |= (1LL << (bit % LONG_BITS));
+}
+
+static inline void
+clear_bit(unsigned long *array, int bit)
+{
+    array[bit / LONG_BITS] &= ~(1LL << (bit % LONG_BITS));
+}
+
+static inline void
+set_bit_state(unsigned long *array, int bit, int state)
+{
+	if (state)
+		set_bit(array, bit);
+	else
+		clear_bit(array, bit);
+}
+
+#endif