extract_wim_resource() refactor

[wimlib] / src / util.h

diff --git a/src/util.h b/src/util.h
index 3292a32eb9878890efd45d43845699d536f304c8..083ddb2e14e4b6ed8d7344bf7bc77a069a4a6dc9 100644 (file)
--- a/src/util.h
+++ b/src/util.h
@@ -30,6 +30,17 @@
 #      define HOT
 #endif /* __GNUC__ */
 
+
+#if 0
+#ifdef WITH_FUSE
+#define atomic_inc(ptr) \
+       __sync_fetch_and_add(ptr, 1)
+
+#define atomic_dec(ptr) \
+       __sync_sub_and_fetch(ptr, 1)
+#endif
+#endif
+
 #ifndef _NTFS_TYPES_H
 typedef uint8_t  u8;
 typedef uint16_t u16;
@@ -65,6 +76,12 @@ typedef unsigned uint;
        (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))
@@ -164,13 +181,25 @@ extern void print_string(const void *string, size_t len);
 
 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 */