core: do not fail in a container if we can't use setgroups

[elogind.git] / src / basic / cgroup-util.h

diff --git a/src/basic/cgroup-util.h b/src/basic/cgroup-util.h
index 2ff43843789cb41cb4b30df47060f355c18e6bc7..5f3152995e253b1a4e3182d5a5747733ee8430df 100644 (file)
--- a/src/basic/cgroup-util.h
+++ b/src/basic/cgroup-util.h
@@ -114,6 +114,10 @@ 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 */
+
 /*
  * General rules:
  *
@@ -137,12 +141,20 @@ 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);
@@ -162,9 +174,10 @@ 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
@@ -224,10 +237,12 @@ 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_unified(void);
 void cg_unified_flush(void);
 
 bool cg_is_unified_wanted(void);