12 #include <linux/bug.h>
13 #include <linux/byteorder.h>
14 #include <linux/kernel.h>
15 #include <linux/log2.h>
16 #include <linux/string.h>
17 #include <linux/types.h>
18 #include <linux/uuid.h>
19 #include "ccan/darray/darray.h"
21 void die(const char *, ...);
22 char *mprintf(const char *, ...);
23 void *xcalloc(size_t, size_t);
24 void *xmalloc(size_t);
25 void *xrealloc(void *, size_t);
26 void xpread(int, void *, size_t, off_t);
27 void xpwrite(int, const void *, size_t, off_t);
28 struct stat xfstatat(int, const char *, int);
29 struct stat xfstat(int);
31 #define xopenat(_dirfd, _path, ...) \
33 int _fd = openat((_dirfd), (_path), __VA_ARGS__); \
35 die("Error opening %s: %m", (_path)); \
39 #define xopen(...) xopenat(AT_FDCWD, __VA_ARGS__)
41 #define xioctl(_fd, _nr, ...) \
43 if (ioctl((_fd), (_nr), ##__VA_ARGS__)) \
44 die(#_nr " ioctl error: %m"); \
53 struct units_buf __pr_units(s64, enum units);
59 #define pr_units(_v, _u) &(__pr_units(_v, _u).b[0])
61 char *read_file_str(int, const char *);
62 u64 read_file_u64(int, const char *);
64 ssize_t read_string_list_or_die(const char *, const char * const[],
67 u64 get_size(const char *, int);
68 unsigned get_blocksize(const char *, int);
69 int open_for_format(const char *, bool);
71 int bcachectl_open(void);
73 struct bcache_handle {
79 void bcache_fs_close(struct bcache_handle);
80 struct bcache_handle bcache_fs_open(const char *);
89 typedef darray(struct range) ranges;
91 static inline void range_add(ranges *data, u64 offset, u64 size)
93 darray_append(*data, (struct range) {
99 void ranges_sort_merge(ranges *);
100 void ranges_roundup(ranges *, unsigned);
101 void ranges_rounddown(ranges *, unsigned);
109 static inline struct range hole_iter_next(struct hole_iter *iter)
112 .start = iter->idx ? iter->r.item[iter->idx - 1].end : 0,
113 .end = iter->idx < iter->r.size
114 ? iter->r.item[iter->idx].start : iter->end,
117 BUG_ON(r.start > r.end);
123 #define for_each_hole(_iter, _ranges, _end, _i) \
124 for (_iter = (struct hole_iter) { .r = _ranges, .end = _end }; \
125 (_iter.idx <= _iter.r.size && \
126 (_i = hole_iter_next(&_iter), true));)
128 #include <linux/fiemap.h>
132 struct fiemap_extent fe[1024];
137 static inline void fiemap_iter_init(struct fiemap_iter *iter, int fd)
139 memset(iter, 0, sizeof(*iter));
141 iter->f.fm_extent_count = ARRAY_SIZE(iter->fe);
142 iter->f.fm_length = FIEMAP_MAX_OFFSET;
146 struct fiemap_extent fiemap_iter_next(struct fiemap_iter *);
148 #define fiemap_for_each(fd, iter, extent) \
149 for (fiemap_iter_init(&iter, fd); \
150 (extent = fiemap_iter_next(&iter)).fe_length;)
152 const char *strcmp_prefix(const char *, const char *);
154 unsigned hatoi_validate(const char *, const char *);
156 u32 crc32c(u32, const void *, size_t);
158 char *dev_to_path(dev_t);
160 #endif /* _TOOLS_UTIL_H */