X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fbasic%2Fcgroup-util.h;h=5a6d41635ddd79a8086b2503df65925ac3eac2b3;hb=1e2c11636861da69c5637e59afe207a11dd4f386;hp=2ff43843789cb41cb4b30df47060f355c18e6bc7;hpb=c733f9b08d9eadc5e671185112567ada81116bdf;p=elogind.git diff --git a/src/basic/cgroup-util.h b/src/basic/cgroup-util.h index 2ff438437..5a6d41635 100644 --- a/src/basic/cgroup-util.h +++ b/src/basic/cgroup-util.h @@ -114,6 +114,17 @@ static inline bool CGROUP_BLKIO_WEIGHT_IS_OK(uint64_t x) { } #endif // 0 +/* Default resource limits */ +#define DEFAULT_TASKS_MAX_PERCENTAGE 15U /* 15% of PIDs, 4915 on default settings */ +#define DEFAULT_USER_TASKS_MAX_PERCENTAGE 33U /* 33% of PIDs, 10813 on default settings */ + +typedef enum CGroupUnified { + CGROUP_UNIFIED_UNKNOWN = -1, + CGROUP_UNIFIED_NONE = 0, /* Both systemd and controllers on legacy */ + CGROUP_UNIFIED_SYSTEMD = 1, /* Only systemd on unified */ + CGROUP_UNIFIED_ALL = 2, /* Both systemd and controllers on unified */ +} CGroupUnified; + /* * General rules: * @@ -137,12 +148,20 @@ int cg_read_event(const char *controller, const char *path, const char *event, int cg_enumerate_subgroups(const char *controller, const char *path, DIR **_d); int cg_read_subgroup(DIR *d, char **fn); -int cg_kill(const char *controller, const char *path, int sig, bool sigcont, bool ignore_self, Set *s); -int cg_kill_recursive(const char *controller, const char *path, int sig, bool sigcont, bool ignore_self, bool remove, Set *s); +typedef enum CGroupFlags { + CGROUP_SIGCONT = 1, + CGROUP_IGNORE_SELF = 2, + CGROUP_REMOVE = 4, +} CGroupFlags; + +typedef void (*cg_kill_log_func_t)(pid_t pid, int sig, void *userdata); -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_migrate_recursive_fallback(const char *cfrom, const char *pfrom, const char *cto, const char *pto, bool ignore_self, bool rem); +int cg_kill(const char *controller, const char *path, int sig, CGroupFlags flags, Set *s, cg_kill_log_func_t kill_log, void *userdata); +int cg_kill_recursive(const char *controller, const char *path, int sig, CGroupFlags flags, Set *s, cg_kill_log_func_t kill_log, void *userdata); + +int cg_migrate(const char *cfrom, const char *pfrom, const char *cto, const char *pto, CGroupFlags flags); +int cg_migrate_recursive(const char *cfrom, const char *pfrom, const char *cto, const char *pto, CGroupFlags flags); +int cg_migrate_recursive_fallback(const char *cfrom, const char *pfrom, const char *cto, const char *pto, CGroupFlags flags); int cg_split_spec(const char *spec, char **controller, char **path); int cg_mangle_path(const char *path, char **result); @@ -162,13 +181,17 @@ int cg_attach_fallback(const char *controller, const char *path, pid_t pid); int cg_create_and_attach(const char *controller, const char *path, pid_t pid); int cg_set_attribute(const char *controller, const char *path, const char *attribute, const char *value); -#if 0 /// UNNEEDED by elogind int cg_get_attribute(const char *controller, const char *path, const char *attribute, char **ret); +int cg_get_keyed_attribute(const char *controller, const char *path, const char *attribute, const char **keys, char **values); +#if 0 /// UNNEEDED by elogind int cg_set_group_access(const char *controller, const char *path, mode_t mode, uid_t uid, gid_t gid); int cg_set_task_access(const char *controller, const char *path, mode_t mode, uid_t uid, gid_t gid); #endif // 0 +int cg_set_xattr(const char *controller, const char *path, const char *name, const void *value, size_t size, int flags); +int cg_get_xattr(const char *controller, const char *path, const char *name, void *value, size_t size); + int cg_install_release_agent(const char *controller, const char *agent); int cg_uninstall_release_agent(const char *controller); @@ -224,15 +247,20 @@ int cg_mask_supported(CGroupMask *ret); #if 0 /// UNNEEDED by elogind int cg_kernel_controllers(Set *controllers); + +bool cg_ns_supported(void); #endif // 0 -int cg_unified(void); #if 0 /// UNNEEDED by elogind +int cg_all_unified(void); +int cg_unified(const char *controller); void cg_unified_flush(void); bool cg_is_unified_wanted(void); #endif // 0 bool cg_is_legacy_wanted(void); +bool cg_is_unified_systemd_controller_wanted(void); +bool cg_is_legacy_systemd_controller_wanted(void); const char* cgroup_controller_to_string(CGroupController c) _const_; CGroupController cgroup_controller_from_string(const char *s) _pure_; @@ -242,3 +270,6 @@ int cg_weight_parse(const char *s, uint64_t *ret); int cg_cpu_shares_parse(const char *s, uint64_t *ret); int cg_blkio_weight_parse(const char *s, uint64_t *ret); #endif // 0 + +bool is_cgroup_fs(const struct statfs *s); +bool fd_is_cgroup_fs(int fd);