1
2#ifndef GIT_COMPAT_UTIL_H
3#define GIT_COMPAT_UTIL_H
4
5#define _BSD_SOURCE 1
6
7#define _DEFAULT_SOURCE 1
8
9#include <fcntl.h>
10#include <stdbool.h>
11#include <stddef.h>
12#include <stdlib.h>
13#include <stdarg.h>
14#include <linux/compiler.h>
15#include <linux/types.h>
16#include "namespaces.h"
17
18
19void usage(const char *err) __noreturn;
20void die(const char *err, ...) __noreturn __printf(1, 2);
21
22static inline void *zalloc(size_t size)
23{
24 return calloc(1, size);
25}
26
27#define zfree(ptr) ({ free(*ptr); *ptr = NULL; })
28
29struct dirent;
30struct strlist;
31
32int mkdir_p(char *path, mode_t mode);
33int rm_rf(const char *path);
34struct strlist *lsdir(const char *name, bool (*filter)(const char *, struct dirent *));
35bool lsdir_no_dot_filter(const char *name, struct dirent *d);
36int copyfile(const char *from, const char *to);
37int copyfile_mode(const char *from, const char *to, mode_t mode);
38int copyfile_ns(const char *from, const char *to, struct nsinfo *nsi);
39int copyfile_offset(int fromfd, loff_t from_ofs, int tofd, loff_t to_ofs, u64 size);
40
41ssize_t readn(int fd, void *buf, size_t n);
42ssize_t writen(int fd, const void *buf, size_t n);
43
44size_t hex_width(u64 v);
45int hex2u64(const char *ptr, u64 *val);
46
47extern unsigned int page_size;
48extern int cacheline_size;
49
50int fetch_kernel_version(unsigned int *puint,
51 char *str, size_t str_sz);
52#define KVER_VERSION(x) (((x) >> 16) & 0xff)
53#define KVER_PATCHLEVEL(x) (((x) >> 8) & 0xff)
54#define KVER_SUBLEVEL(x) ((x) & 0xff)
55#define KVER_FMT "%d.%d.%d"
56#define KVER_PARAM(x) KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x)
57
58const char *perf_tip(const char *dirpath);
59
60#ifndef HAVE_SCHED_GETCPU_SUPPORT
61int sched_getcpu(void);
62#endif
63
64#ifndef HAVE_SETNS_SUPPORT
65int setns(int fd, int nstype);
66#endif
67
68#endif
69
