X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Fcgroup-util.h;h=5835e04075dbb37918537133f741d070798a8f75;hb=b32ff512191bf873266ee8067f6f6c8a30c96a5e;hp=5da0004d818b7de0f23b3f75de54211b81f013b1;hpb=5430f7f2bc7330f3088b894166bf3524a067e3d8;p=elogind.git diff --git a/src/shared/cgroup-util.h b/src/shared/cgroup-util.h index 5da0004d8..5835e0407 100644 --- a/src/shared/cgroup-util.h +++ b/src/shared/cgroup-util.h @@ -1,7 +1,6 @@ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ -#ifndef foocgrouputilhfoo -#define foocgrouputilhfoo +#pragma once /*** This file is part of systemd. @@ -29,8 +28,22 @@ #include "set.h" #include "def.h" +/* + * General rules: + * + * We accept named hierarchies in the syntax "foo" and "name=foo". + * + * We expect that named hierarchies do not conflict in name with a + * kernel hierarchy, modulo the "name=" prefix. + * + * We always generate "normalized" controller names, i.e. without the + * "name=" prefix. + * + * We require absolute cgroup paths. When returning, we will always + * generate paths with multiple adjacent / removed. + */ + int cg_enumerate_processes(const char *controller, const char *path, FILE **_f); -int cg_enumerate_tasks(const char *controller, const char *path, FILE **_f); int cg_read_pid(FILE *f, pid_t *_pid); int cg_enumerate_subgroups(const char *controller, const char *path, DIR **_d); @@ -40,22 +53,24 @@ int cg_kill(const char *controller, const char *path, int sig, bool sigcont, boo int cg_kill_recursive(const char *controller, const char *path, int sig, bool sigcont, bool ignore_self, bool remove, Set *s); int cg_kill_recursive_and_wait(const char *controller, const char *path, bool remove); -int cg_migrate(const char *controller, const char *from, const char *to, bool ignore_self); -int cg_migrate_recursive(const char *controller, const char *from, const char *to, bool ignore_self, bool remove); +int cg_migrate(const char *cfrom, const char *pfrom, const char *cto, const char *pto, bool ignore_self); +int cg_migrate_recursive(const char *cfrom, const char *pfrom, const char *cto, const char *pto, bool ignore_self, bool remove); int cg_split_spec(const char *spec, char **controller, char **path); int cg_join_spec(const char *controller, const char *path, char **spec); -int cg_fix_path(const char *path, char **result); +int cg_mangle_path(const char *path, char **result); int cg_get_path(const char *controller, const char *path, const char *suffix, char **fs); -int cg_get_by_pid(const char *controller, pid_t pid, char **path); +int cg_get_path_and_check(const char *controller, const char *path, const char *suffix, char **fs); + +int cg_pid_get_path(const char *controller, pid_t pid, char **path); int cg_trim(const char *controller, const char *path, bool delete_root); int cg_rmdir(const char *controller, const char *path, bool honour_sticky); int cg_delete(const char *controller, const char *path); -int cg_create(const char *controller, const char *path); +int cg_create(const char *controller, const char *path, const char *suffix); int cg_attach(const char *controller, const char *path, pid_t pid); int cg_create_and_attach(const char *controller, const char *path, pid_t pid); @@ -65,8 +80,35 @@ int cg_set_task_access(const char *controller, const char *path, mode_t mode, ui int cg_install_release_agent(const char *controller, const char *agent); int cg_is_empty(const char *controller, const char *path, bool ignore_self); +int cg_is_empty_by_spec(const char *spec, bool ignore_self); int cg_is_empty_recursive(const char *controller, const char *path, bool ignore_self); +int cg_get_root_path(char **path); +int cg_get_system_path(char **path); int cg_get_user_path(char **path); +int cg_get_machine_path(const char *machine, char **path); + +int cg_path_get_session(const char *path, char **session); +int cg_path_get_owner_uid(const char *path, uid_t *uid); +int cg_path_get_unit(const char *path, char **unit); +int cg_path_get_user_unit(const char *path, char **unit); +int cg_path_get_machine_name(const char *path, char **machine); + +int cg_pid_get_path_shifted(pid_t pid, char **root, char **cgroup); + +int cg_pid_get_session(pid_t pid, char **session); +int cg_pid_get_owner_uid(pid_t pid, uid_t *uid); +int cg_pid_get_unit(pid_t pid, char **unit); +int cg_pid_get_user_unit(pid_t pid, char **unit); +int cg_pid_get_machine_name(pid_t pid, char **machine); + +int cg_path_decode_unit(const char *cgroup, char **unit); + +char **cg_shorten_controllers(char **controllers); + +int cg_controller_from_attr(const char *attr, char **controller); + +char *cg_escape(const char *p); +char *cg_unescape(const char *p) _pure_; -#endif +bool cg_controller_is_valid(const char *p, bool allow_named);