6 * Copyright (C) 2012 Eric Biggers
8 * wimlib - Library for working with WIM files
10 * This library is free software; you can redistribute it and/or modify it under
11 * the terms of the GNU Lesser General Public License as published by the Free
12 * Software Foundation; either version 2.1 of the License, or (at your option) any
15 * This library is distributed in the hope that it will be useful, but WITHOUT ANY
16 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
17 * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public License along
20 * with this library; if not, write to the Free Software Foundation, Inc., 59
21 * Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #ifndef _WIMLIB_UTIL_H
25 #define _WIMLIB_UTIL_H
38 typedef unsigned uint;
40 #define min(a, b) ({ typeof(a) __a = (a); typeof(b) __b = (b); \
41 (__a < __b) ? __a : __b; })
42 #define max(a, b) ({ typeof(a) __a = (a); typeof(b) __b = (b); \
43 (__a > __b) ? __a : __b; })
44 #define swap(a, b) ({typeof(a) _a = a; (a) = (b); (b) = _a;})
46 #define ARRAY_LEN(array) (sizeof(array) / sizeof((array)[0]))
48 #define ZERO_ARRAY(array) memset(array, 0, sizeof(array))
50 #ifdef ENABLE_ERROR_MESSAGES
51 extern bool __wimlib_print_errors;
52 extern void wimlib_error(const char *format, ...);
53 # define ERROR wimlib_error
55 # define ERROR(format, ...)
56 #endif /* ENABLE_ERROR_MESSAGES */
58 #if defined(ENABLE_DEBUG) || defined(ENABLE_MORE_DEBUG)
60 # define DEBUG(format, ...) \
62 int __errno_save = errno; \
63 fprintf(stdout, "[%s %d] %s(): " format, \
64 __FILE__, __LINE__, __func__, ## __VA_ARGS__); \
66 errno = __errno_save; \
70 # define DEBUG(format, ...)
71 #endif /* ENABLE_DEBUG || ENABLE_MORE_DEBUG */
73 #ifdef ENABLE_MORE_DEBUG
74 # define DEBUG2(format, ...) DEBUG(format, ## __VA_ARGS__)
76 # define DEBUG2(format, ...)
77 #endif /* ENABLE_DEBUG */
79 #ifdef ENABLE_ASSERTIONS
81 # define wimlib_assert(expr) assert(expr)
83 # define wimlib_assert(expr)
87 # define WIMLIBAPI __attribute__((visibility("default")))
88 # define NOINLINE __attribute__((noinline))
89 # define ALWAYS_INLINE inline __attribute__((always_inline))
90 # define COLD __attribute__((cold))
91 # define HOT __attribute__((hot))
95 # define ALWAYS_INLINE inline
100 #ifdef ENABLE_CUSTOM_MEMORY_ALLOCATOR
101 extern void *(*wimlib_malloc_func)(size_t);
102 extern void (*wimlib_free_func)(void *);
103 extern void *(*wimlib_realloc)(void *, size_t);
104 extern void *wimlib_calloc(size_t nmemb, size_t size);
105 extern char *wimlib_strdup(const char *str);
106 # define MALLOC wimlib_malloc_func
107 # define FREE wimlib_free_func
108 # define REALLOC wimlib_realloc_func
109 # define CALLOC wimlib_calloc
110 # define STRDUP wimlib_strdup
114 # define MALLOC malloc
116 # define REALLOC realloc
117 # define CALLOC calloc
118 # define STRDUP strdup
119 #endif /* ENABLE_CUSTOM_MEMORY_ALLOCATOR */
122 extern char *utf16_to_utf8(const char *utf16_str, size_t utf16_len,
123 size_t *utf8_len_ret);
125 extern char *utf8_to_utf16(const char *utf8_str, size_t utf8_len,
126 size_t *utf16_len_ret);
128 extern void randomize_byte_array(void *p, size_t n);
130 extern void randomize_char_array_with_alnum(char p[], size_t n);
132 extern int sha1sum(const char *filename, void *buf);
134 extern const char *path_next_part(const char *path,
135 size_t *first_part_len_ret);
137 extern const char *path_basename(const char *path);
139 extern void to_parent_name(char buf[], size_t len);
141 extern void print_string(const void *string, size_t len);
143 extern int get_num_path_components(const char *path);
145 extern ssize_t full_write(int fd, const void *buf, size_t n);
148 static inline void print_byte_field(const u8 field[], size_t len)
151 printf("%02hhx", *field++);
155 #endif /* _WIMLIB_UTIL_H */