X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Futil.h;h=b246996fcc69bc0ba6844cda91742499039bcf4a;hb=2c21044f05e32ec483b6ab13e175278779e9ebe3;hp=062ab6dd055e00764962997bb2edd8d576d5a78d;hpb=9bdc770ccd3e23419a0d908782a661dd81a36bc8;p=elogind.git diff --git a/src/shared/util.h b/src/shared/util.h index 062ab6dd0..b246996fc 100644 --- a/src/shared/util.h +++ b/src/shared/util.h @@ -9,16 +9,16 @@ Copyright 2010 Lennart Poettering systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. + Lesser General Public License for more details. - You should have received a copy of the GNU General Public License + You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see . ***/ @@ -34,6 +34,7 @@ #include #include #include +#include #include "macro.h" @@ -58,6 +59,17 @@ typedef struct dual_timestamp { #define USEC_PER_MONTH (2629800ULL*USEC_PER_SEC) #define USEC_PER_YEAR (31557600ULL*USEC_PER_SEC) +/* + * container_of - cast a member of a structure out to the containing structure + * @ptr: the pointer to the member. + * @type: the type of the container struct this is embedded in. + * @member: the name of the member within the struct. + * + */ +#define container_of(ptr, type, member) ({ \ + const typeof( ((type *)0)->member ) *__mptr = (ptr); \ + (type *)( (char *)__mptr - offsetof(type,member) );}) + /* What is interpreted as whitespace? */ #define WHITESPACE " \t\n\r" #define NEWLINE "\n\r" @@ -99,6 +111,10 @@ bool streq_ptr(const char *a, const char *b); #define new0(t, n) ((t*) calloc((n), sizeof(t))) +#define newa(t, n) ((t*) alloca(sizeof(t)*(n))) + +#define newdup(t, p, n) ((t*) memdup(p, sizeof(t)*(n)) + #define malloc0(n) (calloc((n), 1)) static inline const char* yes_no(bool b) { @@ -347,6 +363,7 @@ ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll); ssize_t loop_write(int fd, const void *buf, size_t nbytes, bool do_poll); int path_is_mount_point(const char *path, bool allow_symlink); +int path_is_read_only_fs(const char *path); bool is_device_path(const char *path); @@ -411,6 +428,7 @@ char *fstab_node_to_udev_node(const char *p); bool tty_is_vc(const char *tty); bool tty_is_vc_resolve(const char *tty); +bool tty_is_console(const char *tty); int vtnr_from_tty(const char *tty); const char *default_term_for_tty(const char *tty); @@ -442,8 +460,6 @@ int symlink_or_copy_atomic(const char *from, const char *to); int fchmod_umask(int fd, mode_t mode); -int conf_files_list(char ***strv, const char *suffix, const char *dir, ...); - int hwclock_is_localtime(void); int hwclock_apply_localtime_delta(int *min); int hwclock_reset_localtime_delta(void); @@ -531,4 +547,8 @@ int fd_inc_rcvbuf(int fd, size_t n); int fork_agent(pid_t *pid, const int except[], unsigned n_except, const char *path, ...); +int setrlimit_closest(int resource, const struct rlimit *rlim); + +int getenv_for_pid(pid_t pid, const char *field, char **_value); + #endif