#include <sys/types.h>
#include <sys/time.h>
+#include <stdint.h>
+#include <stdbool.h>
#include <time.h>
/*
#endif
+#ifdef __GNUC__
+#define _GNUC_MIN_VER(maj, min) (((__GNUC__ << 8) + __GNUC_MINOR__) >= (((maj) << 8) + (min)))
+#else
+#define _GNUC_MIN_VER(maj, min) 0
+#endif
+
#if defined(__linux__) || defined(__CYGWIN__)
#include <byteswap.h>
#include <endian.h>
#elif defined(__APPLE__)
#include <machine/endian.h>
#include <machine/byte_order.h>
-#define bswap_16(x) OSSwapInt16(x)
#define bswap_32(x) OSSwapInt32(x)
#define bswap_64(x) OSSwapInt64(x)
#elif defined(__FreeBSD__)
#include <sys/endian.h>
-#define bswap_16(x) bswap16(x)
#define bswap_32(x) bswap32(x)
#define bswap_64(x) bswap64(x)
#else
#include <machine/endian.h>
-#define bswap_16(x) swap16(x)
#define bswap_32(x) swap32(x)
#define bswap_64(x) swap64(x)
#endif
#define __LITTLE_ENDIAN LITTLE_ENDIAN
#endif
+#define __u_bswap16(x) ({ uint16_t val = (x); ((uint16_t)(((val >> 8) & 0xffu) | ((val & 0xffu) << 8))); })
+
+#if _GNUC_MIN_VER(4, 2)
+#define __u_bswap32(x) __builtin_bswap32(x)
+#define __u_bswap64(x) __builtin_bswap64(x)
+#else
+#define __u_bswap32(x) bswap_32(x)
+#define __u_bswap64(x) bswap_64(x)
+#endif
+
#if __BYTE_ORDER == __LITTLE_ENDIAN
-#define cpu_to_be64(x) bswap_64(x)
-#define cpu_to_be32(x) bswap_32(x)
-#define cpu_to_be16(x) bswap_16(x)
+#define cpu_to_be64(x) __u_bswap64(x)
+#define cpu_to_be32(x) __u_bswap32(x)
+#define cpu_to_be16(x) __u_bswap16((uint16_t) (x))
-#define be64_to_cpu(x) bswap_64(x)
-#define be32_to_cpu(x) bswap_32(x)
-#define be16_to_cpu(x) bswap_16(x)
+#define be64_to_cpu(x) __u_bswap64(x)
+#define be32_to_cpu(x) __u_bswap32(x)
+#define be16_to_cpu(x) __u_bswap16((uint16_t) (x))
-#else
+#define cpu_to_le64(x) (x)
+#define cpu_to_le32(x) (x)
+#define cpu_to_le16(x) (x)
+
+#define le64_to_cpu(x) (x)
+#define le32_to_cpu(x) (x)
+#define le16_to_cpu(x) (x)
+
+#else /* __BYTE_ORDER == __LITTLE_ENDIAN */
+
+#define cpu_to_le64(x) __u_bswap64(x)
+#define cpu_to_le32(x) __u_bswap32(x)
+#define cpu_to_le16(x) __u_bswap16((uint16_t) (x))
+
+#define le64_to_cpu(x) __u_bswap64(x)
+#define le32_to_cpu(x) __u_bswap32(x)
+#define le16_to_cpu(x) __u_bswap16((uint16_t) (x))
#define cpu_to_be64(x) (x)
#define cpu_to_be32(x) (x)
#define __packed __attribute__((packed))
#endif
+#ifndef BITS_PER_LONG
+#define BITS_PER_LONG (8 * sizeof(unsigned long))
+#endif
+
+static inline void bitfield_set(unsigned long *bits, int bit)
+{
+ bits[bit / BITS_PER_LONG] |= (1UL << (bit % BITS_PER_LONG));
+}
+
+static inline bool bitfield_test(unsigned long *bits, int bit)
+{
+ return !!(bits[bit / BITS_PER_LONG] & (1UL << (bit % BITS_PER_LONG)));
+}
+
#endif