1 #ifndef GIT_COMPAT_UTIL_H
2 #define GIT_COMPAT_UTIL_H
5 /* glibc 2.20 deprecates _BSD_SOURCE in favour of _DEFAULT_SOURCE */
6 #define _DEFAULT_SOURCE 1
13 #include <linux/compiler.h>
14 #include <linux/types.h>
16 /* General helper functions */
17 void usage(const char *err) __noreturn;
18 void die(const char *err, ...) __noreturn __printf(1, 2);
20 static inline void *zalloc(size_t size)
22 return calloc(1, size);
25 #define zfree(ptr) ({ free(*ptr); *ptr = NULL; })
30 int mkdir_p(char *path, mode_t mode);
31 int rm_rf(const char *path);
32 struct strlist *lsdir(const char *name, bool (*filter)(const char *, struct dirent *));
33 bool lsdir_no_dot_filter(const char *name, struct dirent *d);
34 int copyfile(const char *from, const char *to);
35 int copyfile_mode(const char *from, const char *to, mode_t mode);
36 int copyfile_offset(int fromfd, loff_t from_ofs, int tofd, loff_t to_ofs, u64 size);
38 ssize_t readn(int fd, void *buf, size_t n);
39 ssize_t writen(int fd, void *buf, size_t n);
41 size_t hex_width(u64 v);
42 int hex2u64(const char *ptr, u64 *val);
44 extern unsigned int page_size;
45 extern int cacheline_size;
47 int fetch_kernel_version(unsigned int *puint,
48 char *str, size_t str_sz);
49 #define KVER_VERSION(x) (((x) >> 16) & 0xff)
50 #define KVER_PATCHLEVEL(x) (((x) >> 8) & 0xff)
51 #define KVER_SUBLEVEL(x) ((x) & 0xff)
52 #define KVER_FMT "%d.%d.%d"
53 #define KVER_PARAM(x) KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x)
55 const char *perf_tip(const char *dirpath);
57 #ifndef HAVE_SCHED_GETCPU_SUPPORT
58 int sched_getcpu(void);
61 #endif /* GIT_COMPAT_UTIL_H */