12 # define WIMLIBAPI __attribute__((visibility("default")))
13 # define NOINLINE __attribute__((noinline))
14 # define ALWAYS_INLINE inline __attribute__((always_inline))
15 # define FORMAT(type, format_str, args_start) \
16 __attribute__((format(type, format_str, args_start)))
17 # if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
18 # define COLD __attribute__((cold))
19 # define HOT __attribute__((hot))
27 # define ALWAYS_INLINE inline
28 # define FORMAT(type, format_str, args_start)
36 #define atomic_inc(ptr) \
37 __sync_fetch_and_add(ptr, 1)
39 #define atomic_dec(ptr) \
40 __sync_sub_and_fetch(ptr, 1)
50 typedef unsigned uint;
53 #define min(a, b) ({ typeof(a) __a = (a); typeof(b) __b = (b); \
54 (__a < __b) ? __a : __b; })
58 #define max(a, b) ({ typeof(a) __a = (a); typeof(b) __b = (b); \
59 (__a > __b) ? __a : __b; })
63 #define swap(a, b) ({typeof(a) _a = a; (a) = (b); (b) = _a;})
67 * container_of - cast a member of a structure out to the containing structure
68 * @ptr: the pointer to the member.
69 * @type: the type of the container struct this is embedded in.
70 * @member: the name of the member within the struct.
74 #define container_of(ptr, type, member) ({ \
75 const typeof( ((type *)0)->member ) *__mptr = (ptr); \
76 (type *)( (char *)__mptr - offsetof(type,member) );})
79 #define ARRAY_LEN(array) (sizeof(array) / sizeof((array)[0]))
81 #define ZERO_ARRAY(array) memset(array, 0, sizeof(array))
83 /* Used for buffering FILE IO in a few places */
84 #define BUFFER_SIZE 4096
86 #ifdef ENABLE_ERROR_MESSAGES
87 extern bool __wimlib_print_errors;
88 extern void wimlib_error(const char *format, ...)
89 FORMAT(printf, 1, 2) COLD;
90 extern void wimlib_error_with_errno(const char *format, ...)
91 FORMAT(printf, 1, 2) COLD;
92 extern void wimlib_warning(const char *format, ...)
93 FORMAT(printf, 1, 2) COLD;
94 # define ERROR wimlib_error
95 # define ERROR_WITH_ERRNO wimlib_error_with_errno
96 # define WARNING wimlib_warning
98 # define ERROR(format, ...)
99 # define ERROR_WITH_ERRNO(format, ...)
100 # define WARNING(format, ...)
101 #endif /* ENABLE_ERROR_MESSAGES */
103 #if defined(ENABLE_DEBUG) || defined(ENABLE_MORE_DEBUG)
105 # define DEBUG(format, ...) \
107 int __errno_save = errno; \
108 fprintf(stdout, "[%s %d] %s(): " format, \
109 __FILE__, __LINE__, __func__, ## __VA_ARGS__); \
112 errno = __errno_save; \
116 # define DEBUG(format, ...)
117 #endif /* ENABLE_DEBUG || ENABLE_MORE_DEBUG */
119 #ifdef ENABLE_MORE_DEBUG
120 # define DEBUG2(format, ...) DEBUG(format, ## __VA_ARGS__)
122 # define DEBUG2(format, ...)
123 #endif /* ENABLE_DEBUG */
125 #ifdef ENABLE_ASSERTIONS
127 # define wimlib_assert(expr) assert(expr)
129 # define wimlib_assert(expr)
133 #ifdef ENABLE_CUSTOM_MEMORY_ALLOCATOR
134 extern void *(*wimlib_malloc_func)(size_t);
135 extern void (*wimlib_free_func)(void *);
136 extern void *(*wimlib_realloc_func)(void *, size_t);
137 extern void *wimlib_calloc(size_t nmemb, size_t size);
138 extern char *wimlib_strdup(const char *str);
139 # define MALLOC wimlib_malloc_func
140 # define FREE wimlib_free_func
141 # define REALLOC wimlib_realloc_func
142 # define CALLOC wimlib_calloc
143 # define STRDUP wimlib_strdup
147 # define MALLOC malloc
149 # define REALLOC realloc
150 # define CALLOC calloc
151 # define STRDUP strdup
152 #endif /* ENABLE_CUSTOM_MEMORY_ALLOCATOR */
155 extern char *utf16_to_utf8(const char *utf16_str, size_t utf16_len,
156 size_t *utf8_len_ret);
158 extern char *utf8_to_utf16(const char *utf8_str, size_t utf8_len,
159 size_t *utf16_len_ret);
161 extern void randomize_byte_array(u8 *p, size_t n);
163 extern void randomize_char_array_with_alnum(char p[], size_t n);
165 extern const char *path_next_part(const char *path,
166 size_t *first_part_len_ret);
168 extern const char *path_basename(const char *path);
170 extern const char *path_stream_name(const char *path);
172 extern void to_parent_name(char buf[], size_t len);
174 extern void print_string(const void *string, size_t len);
176 extern int get_num_path_components(const char *path);
178 extern ssize_t full_write(int fd, const void *buf, size_t n);
180 static inline void print_byte_field(const u8 field[], size_t len)
183 printf("%02hhx", *field++);
187 #endif /* _WIMLIB_UTIL_H */