12 # if defined(__CYGWIN__) || defined(__WIN32__)
13 # define WIMLIBAPI __declspec(dllexport)
15 # define WIMLIBAPI __attribute__((visibility("default")))
17 # define ALWAYS_INLINE inline __attribute__((always_inline))
18 # define PACKED __attribute__((packed))
19 # define FORMAT(type, format_str, args_start) \
20 __attribute__((format(type, format_str, args_start)))
21 # if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
22 # define COLD __attribute__((cold))
28 # define ALWAYS_INLINE inline
29 # define FORMAT(type, format_str, args_start)
37 #define atomic_inc(ptr) \
38 __sync_fetch_and_add(ptr, 1)
40 #define atomic_dec(ptr) \
41 __sync_sub_and_fetch(ptr, 1)
52 /* A pointer to 'mbchar' indicates a string of "multibyte characters" provided
53 * in the default encoding of the user's locale, which may be "UTF-8",
54 * "ISO-8859-1", "C", or any other ASCII-compatible encoding.
55 * "ASCII-compatible" here means any encoding where all ASCII characters have
56 * the same representation, and any non-ASCII character is represented as a
57 * sequence of one or more bytes not already used by any ASCII character. */
60 /* A pointer to 'utf8char' indicates a UTF-8 encoded string */
61 typedef char utf8char;
63 /* Note: in some places in the code, strings of plain old 'char' are still used.
64 * This means that the string is being operated on in an ASCII-compatible way,
65 * and may be either a multibyte or UTF-8 string. */
67 /* A pointer to 'utf16lechar' indicates a UTF-16LE encoded string */
68 typedef u16 utf16lechar;
72 iconv_global_cleanup();
74 extern bool wimlib_mbs_is_utf8;
76 #define DECLARE_CHAR_CONVERSION_FUNCTIONS(varname1, varname2, \
77 chartype1, chartype2) \
80 varname1##_to_##varname2##_nbytes(const chartype1 *in, size_t in_nbytes,\
81 size_t *out_nbytes_ret); \
84 varname1##_to_##varname2##_buf(const chartype1 *in, size_t in_nbytes, \
88 varname1##_to_##varname2(const chartype1 *in, size_t in_nbytes, \
89 chartype2 **out_ret, \
90 size_t *out_nbytes_ret); \
92 /* multi-byte string to UTF16-LE string */
93 DECLARE_CHAR_CONVERSION_FUNCTIONS(mbs, utf16le, mbchar, utf16lechar);
95 /* UTF16-LE string to multi-byte string */
96 DECLARE_CHAR_CONVERSION_FUNCTIONS(utf16le, mbs, utf16lechar, mbchar);
98 /* UTF-8 string to multi-byte string */
99 DECLARE_CHAR_CONVERSION_FUNCTIONS(utf8, mbs, utf8char, mbchar);
102 utf8_str_contains_nonascii_chars(const utf8char *utf8_str);
105 #define min(a, b) ({ typeof(a) __a = (a); typeof(b) __b = (b); \
106 (__a < __b) ? __a : __b; })
110 #define max(a, b) ({ typeof(a) __a = (a); typeof(b) __b = (b); \
111 (__a > __b) ? __a : __b; })
115 #define swap(a, b) ({typeof(a) _a = a; (a) = (b); (b) = _a;})
119 * container_of - cast a member of a structure out to the containing structure
120 * @ptr: the pointer to the member.
121 * @type: the type of the container struct this is embedded in.
122 * @member: the name of the member within the struct.
126 #define container_of(ptr, type, member) ({ \
127 const typeof( ((type *)0)->member ) *__mptr = (ptr); \
128 (type *)( (char *)__mptr - offsetof(type,member) );})
131 #define DIV_ROUND_UP(numerator, denominator) \
132 (((numerator) + (denominator) - 1) / (denominator))
134 #define MODULO_NONZERO(numerator, denominator) \
135 (((numerator) % (denominator)) ? ((numerator) % (denominator)) : (denominator))
137 #define ARRAY_LEN(array) (sizeof(array) / sizeof((array)[0]))
139 #define ZERO_ARRAY(array) memset(array, 0, sizeof(array))
141 /* Used for buffering FILE IO in a few places */
142 #define BUFFER_SIZE 4096
144 static inline void FORMAT(printf, 1, 2)
145 dummy_printf(const char *format, ...)
149 #ifdef ENABLE_ERROR_MESSAGES
151 wimlib_error(const char *format, ...) FORMAT(printf, 1, 2) COLD;
154 wimlib_error_with_errno(const char *format, ...) FORMAT(printf, 1, 2) COLD;
157 wimlib_warning(const char *format, ...) FORMAT(printf, 1, 2) COLD;
160 wimlib_warning_with_errno(const char *format, ...) FORMAT(printf, 1, 2) COLD;
161 # define ERROR wimlib_error
162 # define ERROR_WITH_ERRNO wimlib_error_with_errno
163 # define WARNING wimlib_warning
164 # define WARNING_WITH_ERRNO wimlib_warning
166 # define ERROR(format, ...) dummy_printf(format, ## __VA_ARGS__)
167 # define ERROR_WITH_ERRNO(format, ...) dummy_printf(format, ## __VA_ARGS__)
168 # define WARNING(format, ...) dummy_printf(format, ## __VA_ARGS__)
169 # define WARNING_WITH_ERRNO(format, ...) dummy_printf(format, ## __VA_ARGS__)
170 #endif /* ENABLE_ERROR_MESSAGES */
172 #if defined(ENABLE_DEBUG) || defined(ENABLE_MORE_DEBUG)
174 # define DEBUG(format, ...) \
176 int __errno_save = errno; \
177 wimlib_fprintf(stdout, "[%s %d] %s(): " format, \
178 __FILE__, __LINE__, __func__, ## __VA_ARGS__); \
181 errno = __errno_save; \
185 # define DEBUG(format, ...) dummy_printf(format, ## __VA_ARGS__)
186 #endif /* ENABLE_DEBUG || ENABLE_MORE_DEBUG */
188 #ifdef ENABLE_MORE_DEBUG
189 # define DEBUG2(format, ...) DEBUG(format, ## __VA_ARGS__)
191 # define DEBUG2(format, ...) dummy_printf(format, ## __VA_ARGS__)
192 #endif /* ENABLE_DEBUG */
194 #ifdef ENABLE_ASSERTIONS
196 # define wimlib_assert(expr) assert(expr)
198 # define wimlib_assert(expr)
201 #ifdef ENABLE_MORE_ASSERTIONS
202 #define wimlib_assert2(expr) wimlib_assert(expr)
204 #define wimlib_assert2(expr)
207 #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
209 #ifdef ENABLE_CUSTOM_MEMORY_ALLOCATOR
210 extern void *(*wimlib_malloc_func)(size_t);
211 extern void (*wimlib_free_func)(void *);
212 extern void *(*wimlib_realloc_func)(void *, size_t);
213 extern void *wimlib_calloc(size_t nmemb, size_t size);
214 extern char *wimlib_strdup(const char *str);
215 # define MALLOC wimlib_malloc_func
216 # define FREE wimlib_free_func
217 # define REALLOC wimlib_realloc_func
218 # define CALLOC wimlib_calloc
219 # define STRDUP wimlib_strdup
223 # define MALLOC malloc
225 # define REALLOC realloc
226 # define CALLOC calloc
227 # define STRDUP strdup
228 #endif /* ENABLE_CUSTOM_MEMORY_ALLOCATOR */
233 randomize_byte_array(u8 *p, size_t n);
236 randomize_char_array_with_alnum(char p[], size_t n);
239 path_next_part(const char *path, size_t *first_part_len_ret);
242 path_basename(const char *path);
245 path_stream_name(const char *path);
248 to_parent_name(char buf[], size_t len);
251 print_string(const void *string, size_t len);
254 get_num_path_components(const char *path);
257 print_byte_field(const u8 field[], size_t len)
260 printf("%02hhx", *field++);
266 #if defined(__x86__) || defined(__x86_64__)
273 while ((n >>= 1) != 0)
280 wimlib_fprintf(FILE *fp, const char *format, ...) FORMAT(printf, 2, 3);
283 wimlib_printf(const char *format, ...) FORMAT(printf, 1, 2);
285 #endif /* _WIMLIB_UTIL_H */