diff options
| author | Michael Biebl <biebl@debian.org> | 2019-04-21 21:09:51 +0200 |
|---|---|---|
| committer | Michael Biebl <biebl@debian.org> | 2019-04-21 21:09:51 +0200 |
| commit | 85563b7fc7ec2cd21e38debb9b28db342e2e8e7c (patch) | |
| tree | cce7b0b02d28fae2df9fdf2c1804cacd1500f2d7 /shared/systemd/src/basic/util.h | |
| parent | 9a6dcbf895f9da01768e64b73cec88c16157d91e (diff) | |
New upstream version 1.18.0 upstream/1.18.0
Diffstat (limited to 'shared/systemd/src/basic/util.h')
| -rw-r--r-- | shared/systemd/src/basic/util.h | 181 |
1 files changed, 6 insertions, 175 deletions
diff --git a/shared/systemd/src/basic/util.h b/shared/systemd/src/basic/util.h index dc33d660..25e6ab81 100644 --- a/shared/systemd/src/basic/util.h +++ b/shared/systemd/src/basic/util.h @@ -1,34 +1,9 @@ /* SPDX-License-Identifier: LGPL-2.1+ */ #pragma once -#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 "time-util.h" -size_t page_size(void) _pure_; -#define PAGE_ALIGN(l) ALIGN_TO((l), page_size()) +#include "macro.h" static inline const char* yes_no(bool b) { return b ? "yes" : "no"; @@ -46,19 +21,14 @@ static inline const char* enable_disable(bool b) { return b ? "enable" : "disable"; } -bool plymouth_running(void); - -bool display_is_local(const char *display) _pure_; - -#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; +static inline void save_argc_argv(int argc, char **argv) { + saved_argc = argc; + saved_argv = argv; +} + bool kexec_loaded(void); int prot_from_flags(int flags) _const_; @@ -66,138 +36,8 @@ 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, - __compar_d_fn_t compar, void *arg); - -#define typesafe_bsearch_r(k, b, n, func, userdata) \ - ({ \ - const typeof(b[0]) *_k = k; \ - int (*_func_)(const typeof(b[0])*, const typeof(b[0])*, typeof(userdata)) = func; \ - xbsearch_r((const void*) _k, (b), (n), sizeof((b)[0]), (__compar_d_fn_t) _func_, userdata); \ - }) - -/** - * 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, __compar_fn_t compar) { - if (nmemb <= 0) - return NULL; - - assert(base); - return bsearch(key, base, nmemb, size, compar); -} - -#define typesafe_bsearch(k, b, n, func) \ - ({ \ - const typeof(b[0]) *_k = k; \ - int (*_func_)(const typeof(b[0])*, const typeof(b[0])*) = func; \ - bsearch_safe((const void*) _k, (b), (n), sizeof((b)[0]), (__compar_fn_t) _func_); \ - }) - -/** - * 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, __compar_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, __compar_d_fn_t compar, void *userdata) { - if (nmemb <= 1) - return; - - assert(base); - qsort_r(base, nmemb, size, compar, userdata); -} - -#define typesafe_qsort_r(p, n, func, userdata) \ - ({ \ - int (*_func_)(const typeof(p[0])*, const typeof(p[0])*, typeof(userdata)) = func; \ - qsort_r_safe((p), (n), sizeof((p)[0]), (__compar_d_fn_t) _func_, 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); -} - -/* Normal memcmp requires s1 and s2 to be nonnull. We do nothing if n is 0. */ -static inline int memcmp_safe(const void *s1, const void *s2, size_t n) { - if (n == 0) - return 0; - assert(s1); - assert(s2); - return memcmp(s1, s2, n); -} - -/* Compare s1 (length n1) with s2 (length n2) in lexicographic order. */ -static inline int memcmp_nn(const void *s1, size_t n1, const void *s2, size_t n2) { - return memcmp_safe(s1, s2, MIN(n1, n2)) - ?: CMP(n1, n2); -} - int on_ac_power(void); -#define memzero(x,l) \ - ({ \ - size_t _l_ = (l); \ - void *_x_ = (x); \ - _l_ == 0 ? _x_ : memset(_x_, 0, _l_); \ - }) - -#define zero(x) (memzero(&(x), sizeof(x))) - -bool memeqzero(const void *data, size_t length); - -#define eqzero(x) memeqzero(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) { - if (*saved_errno < 0) /* Invalidated by UNPROTECT_ERRNO? */ - return; - - errno = *saved_errno; -} - -#define PROTECT_ERRNO \ - _cleanup_(_reset_errno_) _unused_ int _saved_errno_ = errno - -#define UNPROTECT_ERRNO \ - do { \ - errno = _saved_errno_; \ - _saved_errno_ = -1; \ - } while (false) - -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; @@ -237,15 +77,6 @@ static inline unsigned log2u_round_up(unsigned x) { 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); |