10 #include <sys/types.h>
13 #include <linux/bug.h>
14 #include <linux/byteorder.h>
15 #include <linux/kernel.h>
16 #include <linux/log2.h>
17 #include <linux/string.h>
18 #include <linux/types.h>
19 #include <linux/uuid.h>
20 #include "ccan/darray/darray.h"
22 void die(const char *, ...);
23 char *mprintf(const char *, ...);
24 void *xcalloc(size_t, size_t);
25 void *xmalloc(size_t);
26 void *xrealloc(void *, size_t);
27 void xpread(int, void *, size_t, off_t);
28 void xpwrite(int, const void *, size_t, off_t);
29 struct stat xfstatat(int, const char *, int);
30 struct stat xfstat(int);
31 struct stat xstat(const char *);
33 #define xopenat(_dirfd, _path, ...) \
35 int _fd = openat((_dirfd), (_path), __VA_ARGS__); \
37 die("Error opening %s: %m", (_path)); \
41 #define xopen(...) xopenat(AT_FDCWD, __VA_ARGS__)
43 #define xioctl(_fd, _nr, ...) \
45 int _ret = ioctl((_fd), (_nr), ##__VA_ARGS__); \
47 die(#_nr " ioctl error: %m"); \
51 int printf_pad(unsigned pad, const char * fmt, ...);
59 struct units_buf __pr_units(s64, enum units);
65 #define pr_units(_v, _u) &(__pr_units(_v, _u).b[0])
67 char *read_file_str(int, const char *);
68 u64 read_file_u64(int, const char *);
70 ssize_t read_string_list_or_die(const char *, const char * const[],
73 u64 get_size(const char *, int);
74 unsigned get_blocksize(const char *, int);
75 int open_for_format(const char *, bool);
84 typedef darray(struct range) ranges;
86 static inline void range_add(ranges *data, u64 offset, u64 size)
88 darray_append(*data, (struct range) {
94 void ranges_sort_merge(ranges *);
95 void ranges_roundup(ranges *, unsigned);
96 void ranges_rounddown(ranges *, unsigned);
104 static inline struct range hole_iter_next(struct hole_iter *iter)
107 .start = iter->idx ? iter->r.item[iter->idx - 1].end : 0,
108 .end = iter->idx < iter->r.size
109 ? iter->r.item[iter->idx].start : iter->end,
112 BUG_ON(r.start > r.end);
118 #define for_each_hole(_iter, _ranges, _end, _i) \
119 for (_iter = (struct hole_iter) { .r = _ranges, .end = _end }; \
120 (_iter.idx <= _iter.r.size && \
121 (_i = hole_iter_next(&_iter), true));)
123 #include <linux/fiemap.h>
127 struct fiemap_extent fe[1024];
132 static inline void fiemap_iter_init(struct fiemap_iter *iter, int fd)
134 memset(iter, 0, sizeof(*iter));
136 iter->f.fm_extent_count = ARRAY_SIZE(iter->fe);
137 iter->f.fm_length = FIEMAP_MAX_OFFSET;
141 struct fiemap_extent fiemap_iter_next(struct fiemap_iter *);
143 #define fiemap_for_each(fd, iter, extent) \
144 for (fiemap_iter_init(&iter, fd); \
145 (extent = fiemap_iter_next(&iter)).fe_length;)
147 const char *strcmp_prefix(const char *, const char *);
149 unsigned hatoi_validate(const char *, const char *);
151 u32 crc32c(u32, const void *, size_t);
153 char *dev_to_name(dev_t);
154 char *dev_to_path(dev_t);
155 char *dev_to_mount(char *);
157 #define args_shift(_nr) \
159 unsigned _n = min((_nr), argc); \
166 char *_ret = argc ? argv[0] : NULL; \
172 #endif /* _TOOLS_UTIL_H */