X-Git-Url: https://wimlib.net/git/?p=wimlib;a=blobdiff_plain;f=src%2Futil.h;h=2dc794370ad3c58e2a00915cf07bcb04d75099ad;hp=911b7c5e2cc92e3897320e7d132dfd08abd8fdf8;hb=ad37dd86e75416ffc47c97b35f097012be5eeaa2;hpb=8191ca50a47773d20e94ffb85bedefe199166484 diff --git a/src/util.h b/src/util.h index 911b7c5e..2dc79437 100644 --- a/src/util.h +++ b/src/util.h @@ -9,34 +9,45 @@ #include "config.h" #ifdef __GNUC__ -# define WIMLIBAPI __attribute__((visibility("default"))) -# define NOINLINE __attribute__((noinline)) +# if defined(__CYGWIN__) || defined(__WIN32__) +# define WIMLIBAPI __declspec(dllexport) +# else +# define WIMLIBAPI __attribute__((visibility("default"))) +# endif # 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 +#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; typedef uint32_t u32; typedef uint64_t u64; #endif -typedef unsigned uint; #ifndef min #define min(a, b) ({ typeof(a) __a = (a); typeof(b) __b = (b); \ @@ -52,6 +63,25 @@ typedef unsigned uint; #define swap(a, b) ({typeof(a) _a = a; (a) = (b); (b) = _a;}) #endif +/** + * container_of - cast a member of a structure out to the containing structure + * @ptr: the pointer to the member. + * @type: the type of the container struct this is embedded in. + * @member: the name of the member within the struct. + * + */ +#ifndef container_of +#define container_of(ptr, type, member) ({ \ + const typeof( ((type *)0)->member ) *__mptr = (ptr); \ + (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)) @@ -59,21 +89,29 @@ typedef unsigned uint; /* Used for buffering FILE IO in a few places */ #define BUFFER_SIZE 4096 +static inline void FORMAT(printf, 1, 2) +dummy_printf(const char *format, ...) +{ +} + #ifdef ENABLE_ERROR_MESSAGES -extern bool __wimlib_print_errors; -extern void wimlib_error(const char *format, ...) +extern void wimlib_error(const char *format, ...) FORMAT(printf, 1, 2) COLD; -extern void wimlib_error_with_errno(const char *format, ...) +extern void wimlib_error_with_errno(const char *format, ...) FORMAT(printf, 1, 2) COLD; extern void wimlib_warning(const char *format, ...) FORMAT(printf, 1, 2) COLD; -# define ERROR wimlib_error -# define ERROR_WITH_ERRNO wimlib_error_with_errno -# define WARNING wimlib_warning +extern void wimlib_warning_with_errno(const char *format, ...) + FORMAT(printf, 1, 2) COLD; +# define ERROR wimlib_error +# define ERROR_WITH_ERRNO wimlib_error_with_errno +# define WARNING wimlib_warning +# define WARNING_WITH_ERRNO wimlib_warning #else -# define ERROR(format, ...) -# define ERROR_WITH_ERRNO(format, ...) -# define WARNING(format, ...) +# define ERROR(format, ...) dummy_printf +# define ERROR_WITH_ERRNO(format, ...) dummy_printf +# define WARNING(format, ...) dummy_printf +# define WARNING_WITH_ERRNO(format, ...) dummy_printf #endif /* ENABLE_ERROR_MESSAGES */ #if defined(ENABLE_DEBUG) || defined(ENABLE_MORE_DEBUG) @@ -89,13 +127,13 @@ extern void wimlib_warning(const char *format, ...) }) #else -# define DEBUG(format, ...) +# define DEBUG(format, ...) dummy_printf(format, ## __VA_ARGS__) #endif /* ENABLE_DEBUG || ENABLE_MORE_DEBUG */ #ifdef ENABLE_MORE_DEBUG # define DEBUG2(format, ...) DEBUG(format, ## __VA_ARGS__) #else -# define DEBUG2(format, ...) +# define DEBUG2(format, ...) dummy_printf(format, ## __VA_ARGS__) #endif /* ENABLE_DEBUG */ #ifdef ENABLE_ASSERTIONS @@ -105,6 +143,13 @@ extern void wimlib_warning(const char *format, ...) # define wimlib_assert(expr) #endif +#ifdef ENABLE_MORE_ASSERTIONS +#define wimlib_assert2(expr) wimlib_assert(expr) +#else +#define wimlib_assert2(expr) +#endif + +#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) #ifdef ENABLE_CUSTOM_MEMORY_ALLOCATOR extern void *(*wimlib_malloc_func)(size_t); @@ -128,17 +173,32 @@ extern char *wimlib_strdup(const char *str); #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 */ + +#ifdef WITH_NTFS_3G +static inline int iconv_global_init() +{ + return 0; +} -extern char *utf8_to_utf16(const char *utf8_str, size_t utf8_len, - size_t *utf16_len_ret); +static inline void iconv_global_cleanup() { } +#else +extern int iconv_global_init(); +extern void iconv_global_cleanup(); +#endif +extern int utf16_to_utf8(const char *utf16_str, size_t utf16_nbytes, + char **utf8_str_ret, size_t *utf8_nbytes_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 const char *path_next_part(const char *path, +extern const char *path_next_part(const char *path, size_t *first_part_len_ret); extern const char *path_basename(const char *path); @@ -151,13 +211,25 @@ 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 */