1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
/***
Copyright 2010 Lennart Poettering
***/
#include <alloca.h>
#include <errno.h>
#include <fcntl.h>
#include <inttypes.h>
#include <limits.h>
#include <locale.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/inotify.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/statfs.h>
#include <sys/sysmacros.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#include "format-util.h"
#include "macro.h"
#include "missing.h"
#include "time-util.h"
size_t page_size(void) _pure_;
#define PAGE_ALIGN(l) ALIGN_TO((l), page_size())
static inline const char* yes_no(bool b) {
return b ? "yes" : "no";
}
static inline const char* true_false(bool b) {
return b ? "true" : "false";
}
static inline const char* one_zero(bool b) {
return b ? "1" : "0";
}
static inline const char* enable_disable(bool b) {
return b ? "enable" : "disable";
}
bool plymouth_running(void);
bool display_is_local(const char *display) _pure_;
int socket_from_display(const char *display, char **path);
#define NULSTR_FOREACH(i, l) \
for ((i) = (l); (i) && *(i); (i) = strchr((i), 0)+1)
#define NULSTR_FOREACH_PAIR(i, j, l) \
for ((i) = (l), (j) = strchr((i), 0)+1; (i) && *(i); (i) = strchr((j), 0)+1, (j) = *(i) ? strchr((i), 0)+1 : (i))
extern int saved_argc;
extern char **saved_argv;
bool kexec_loaded(void);
int prot_from_flags(int flags) _const_;
bool in_initrd(void);
void in_initrd_force(bool value);
void *xbsearch_r(const void *key, const void *base, size_t nmemb, size_t size,
int (*compar) (const void *, const void *, void *),
void *arg);
/**
* Normal bsearch requires base to be nonnull. Here were require
* that only if nmemb > 0.
*/
static inline void* bsearch_safe(const void *key, const void *base,
size_t nmemb, size_t size, comparison_fn_t compar) {
if (nmemb <= 0)
return NULL;
assert(base);
return bsearch(key, base, nmemb, size, compar);
}
/**
* Normal qsort requires base to be nonnull. Here were require
* that only if nmemb > 0.
*/
static inline void qsort_safe(void *base, size_t nmemb, size_t size, comparison_fn_t compar) {
if (nmemb <= 1)
return;
assert(base);
qsort(base, nmemb, size, compar);
}
/* A wrapper around the above, but that adds typesafety: the element size is automatically derived from the type and so
* is the prototype for the comparison function */
#define typesafe_qsort(p, n, func) \
({ \
int (*_func_)(const typeof(p[0])*, const typeof(p[0])*) = func; \
qsort_safe((p), (n), sizeof((p)[0]), (__compar_fn_t) _func_); \
})
static inline void qsort_r_safe(void *base, size_t nmemb, size_t size, int (*compar)(const void*, const void*, void*), void *userdata) {
if (nmemb <= 1)
return;
assert(base);
qsort_r(base, nmemb, size, compar, userdata);
}
/**
* Normal memcpy requires src to be nonnull. We do nothing if n is 0.
*/
static inline void memcpy_safe(void *dst, const void *src, size_t n) {
if (n == 0)
return;
assert(src);
memcpy(dst, src, n);
}
int on_ac_power(void);
#define memzero(x,l) (memset((x), 0, (l)))
#define zero(x) (memzero(&(x), sizeof(x)))
static inline void *mempset(void *s, int c, size_t n) {
memset(s, c, n);
return (uint8_t*)s + n;
}
static inline void _reset_errno_(int *saved_errno) {
errno = *saved_errno;
}
#define PROTECT_ERRNO _cleanup_(_reset_errno_) __attribute__((unused)) int _saved_errno_ = errno
static inline int negative_errno(void) {
/* This helper should be used to shut up gcc if you know 'errno' is
* negative. Instead of "return -errno;", use "return negative_errno();"
* It will suppress bogus gcc warnings in case it assumes 'errno' might
* be 0 and thus the caller's error-handling might not be triggered. */
assert_return(errno > 0, -EINVAL);
return -errno;
}
static inline unsigned u64log2(uint64_t n) {
#if __SIZEOF_LONG_LONG__ == 8
return (n > 1) ? (unsigned) __builtin_clzll(n) ^ 63U : 0;
#else
#error "Wut?"
#endif
}
static inline unsigned u32ctz(uint32_t n) {
#if __SIZEOF_INT__ == 4
return __builtin_ctz(n);
#else
#error "Wut?"
#endif
}
static inline unsigned log2i(int x) {
assert(x > 0);
return __SIZEOF_INT__ * 8 - __builtin_clz(x) - 1;
}
static inline unsigned log2u(unsigned x) {
assert(x > 0);
return sizeof(unsigned) * 8 - __builtin_clz(x) - 1;
}
static inline unsigned log2u_round_up(unsigned x) {
assert(x > 0);
if (x == 1)
return 0;
return log2u(x - 1) + 1;
}
int container_get_leader(const char *machine, pid_t *pid);
int namespace_open(pid_t pid, int *pidns_fd, int *mntns_fd, int *netns_fd, int *userns_fd, int *root_fd);
int namespace_enter(int pidns_fd, int mntns_fd, int netns_fd, int userns_fd, int root_fd);
uint64_t physical_memory(void);
uint64_t physical_memory_scale(uint64_t v, uint64_t max);
uint64_t system_tasks_max(void);
uint64_t system_tasks_max_scale(uint64_t v, uint64_t max);
int version(void);
int str_verscmp(const char *s1, const char *s2);
void disable_coredumps(void);
|
GitWeb