#ifdef __GNUC__
# define WIMLIBAPI __attribute__((visibility("default")))
-# define NOINLINE __attribute__((noinline))
# define ALWAYS_INLINE inline __attribute__((always_inline))
+# define PACKED __attribute__((packed))
# define FORMAT(type, format_str, args_start) \
__attribute__((format(type, format_str, args_start)))
# if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
# define COLD __attribute__((cold))
-# define HOT __attribute__((hot))
# else
# define COLD
-# define HOT
# endif
#else
# define WIMLIBAPI
-# define NOINLINE
# define ALWAYS_INLINE inline
# define FORMAT(type, format_str, args_start)
# define COLD
-# define HOT
+# define PACKED
#endif /* __GNUC__ */
+
+#if 0
#ifdef WITH_FUSE
-/*
- * Compare-and-swap. Equivalent to the folliwng, but executed
- * atomically:
- *
- * Q tmp = *ptr;
- * if (tmp == oval)
- * *ptr = nval;
- * return tmp;
- */
#define atomic_inc(ptr) \
__sync_fetch_and_add(ptr, 1)
#define atomic_dec(ptr) \
__sync_sub_and_fetch(ptr, 1)
-
-#define cas(ptr, oval, nval) \
- __sync_val_compare_and_swap(ptr, oval, nval);
-
-#define cas_bool(ptr, oval, nval) \
- __sync_bool_compare_and_swap(ptr, oval, nval);
+#endif
#endif
#ifndef _NTFS_TYPES_H
(type *)( (char *)__mptr - offsetof(type,member) );})
#endif
+#define DIV_ROUND_UP(numerator, denominator) \
+ (((numerator) + (denominator) - 1) / (denominator))
+
+#define MODULO_NONZERO(numerator, denominator) \
+ (((numerator) % (denominator)) ? ((numerator) % (denominator)) : (denominator))
+
#define ARRAY_LEN(array) (sizeof(array) / sizeof((array)[0]))
#define ZERO_ARRAY(array) memset(array, 0, sizeof(array))
#endif /* ENABLE_CUSTOM_MEMORY_ALLOCATOR */
-extern char *utf16_to_utf8(const char *utf16_str, size_t utf16_len,
- size_t *utf8_len_ret);
+/* encoding.c */
+extern int utf16_to_utf8(const char *utf16_str, size_t utf16_nbytes,
+ char **utf8_str_ret, size_t *utf8_nbytes_ret);
-extern char *utf8_to_utf16(const char *utf8_str, size_t utf8_len,
- size_t *utf16_len_ret);
+extern int utf8_to_utf16(const char *utf8_str, size_t utf8_nbytes,
+ char **utf16_str_ret, size_t *utf16_nbytes_ret);
+/* util.c */
extern void randomize_byte_array(u8 *p, size_t n);
extern void randomize_char_array_with_alnum(char p[], size_t n);
extern int get_num_path_components(const char *path);
-extern ssize_t full_write(int fd, const void *buf, size_t n);
-
static inline void print_byte_field(const u8 field[], size_t len)
{
while (len--)
printf("%02hhx", *field++);
}
+static inline u32 bsr32(u32 n)
+{
+#if defined(__x86__) || defined(__x86_64__)
+ asm("bsrl %0, %0;"
+ : "=r"(n)
+ : "0" (n));
+ return n;
+#else
+ u32 pow = 0;
+ while ((n >>= 1) != 0)
+ pow++;
+ return pow;
+#endif
+}
#endif /* _WIMLIB_UTIL_H */