#include <sys/stat.h>
#include <sys/types.h>
-/* Maximum number of mount points/controllers */
-#define MAX_MNT_ELEMENTS 16
-/* Estimated number of groups created */
-#define MAX_GROUP_ELEMENTS 128
+#define MAX_MNT_ELEMENTS 16 /* Maximum number of mount points/controllers */
+#define MAX_GROUP_ELEMENTS 128 /* Estimated number of groups created */
-/* Maximum length of a value */
-#define CG_CONTROL_VALUE_MAX 4096
+#define CG_CONTROL_VALUE_MAX 4096 /* Maximum length of a value */
#define CG_NV_MAX 100
#define CG_CONTROLLER_MAX 100
#define CG_OPTIONS_MAX 100
-/* Max number of mounted hierarchies. Event if one controller is mounted per
- * hier, it can not exceed CG_CONTROLLER_MAX
+
+/*
+ * Max number of mounted hierarchies. Event if one controller is mounted
+ * per hier, it can not exceed CG_CONTROLLER_MAX
*/
#define CG_HIER_MAX CG_CONTROLLER_MAX
-/* Maximum length of a controller's name */
-#define CONTROL_NAMELEN_MAX 32
+#define CONTROL_NAMELEN_MAX 32 /* Maximum length of a controller's name */
/* Definitions for the uid and gid members of a cgroup_rules */
#define CGRULE_INVALID ((uid_t) -1)
#define CGRULE_WILD ((uid_t) -2)
#define CGRULE_SUCCESS_STORE_PID "SUCCESS_STORE_PID"
-
-/* Definitions for the cgrules options field */
-#define CGRULE_OPTION_IGNORE "ignore"
+#define CGRULE_OPTION_IGNORE "ignore" /* Definitions for the cgrules options field */
#define CGCONFIG_CONF_FILE "/etc/cgconfig.conf"
/* Minimum number of file in template file list for cgrulesengd */
#define CGCONFIG_CONF_FILES_LIST_MINIMUM_SIZE 4
-#define CGCONFIG_CONF_DIR "/etc/cgconfig.d"
+#define CGCONFIG_CONF_DIR "/etc/cgconfig.d"
-#define CGRULES_CONF_FILE "/etc/cgrules.conf"
-#define CGRULES_CONF_DIR "/etc/cgrules.d"
-#define CGRULES_MAX_FIELDS_PER_LINE 3
+#define CGRULES_CONF_FILE "/etc/cgrules.conf"
+#define CGRULES_CONF_DIR "/etc/cgrules.d"
+#define CGRULES_MAX_FIELDS_PER_LINE 3
-#define CGROUP_BUFFER_LEN (5 * FILENAME_MAX)
+#define CGROUP_BUFFER_LEN (5 * FILENAME_MAX)
/* Maximum length of a key(<user>:<process name>) in the daemon config file */
#define CGROUP_RULE_MAXKEY (LOGIN_NAME_MAX + FILENAME_MAX + 1)
/* Maximum length of a line in the daemon config file */
-#define CGROUP_RULE_MAXLINE (FILENAME_MAX + CGROUP_RULE_MAXKEY + \
- CG_CONTROLLER_MAX + 3)
+#define CGROUP_RULE_MAXLINE (FILENAME_MAX + CGROUP_RULE_MAXKEY + CG_CONTROLLER_MAX + 3)
#define CGROUP_FILE_PREFIX "cgroup"
char *multiline_value;
/*
- * The abstraction layer uses prev_name when there's an N->1 or
- * 1->N relationship between cgroup v1 and v2 settings.
+ * The abstraction layer uses prev_name when there's an
+ * N->1 or 1->N relationship between cgroup v1 and v2 settings.
*/
char *prev_name;
};
struct cgroup_rules_data {
- pid_t pid; /* pid of the process which needs to change group */
+ pid_t pid; /* pid of the process which needs to change group */
/* Details of user under consideration for destination cgroup */
- struct passwd *pw;
+ struct passwd *pw;
/* Gid of the process */
- gid_t gid;
+ gid_t gid;
};
/* A rule that maps UID/GID to a cgroup */
int len;
};
-/*The walk_tree handle */
+/* The walk_tree handle */
struct cgroup_tree_handle {
FTS *fts;
int flags;
/**
* Internal item of dictionary. Linked list is sufficient for now - we need
* only 'add' operation and simple iterator. In future, this might be easily
- * rewritten to dynamic array when random access is needed,
- * just keep in mind that the order is important and the iterator should
- * return the items in the order they were added there.
+ * rewritten to dynamic array when random access is needed, just keep in mind
+ * that the order is important and the iterator should return the items in
+ * the order they were added there.
*/
struct cgroup_dictionary_item {
const char *name;
/* Flags for cgroup_dictionary_create */
/**
* All items (i.e. both name and value strings) stored in the dictionary
- * should *NOT* be free()d on cgroup_dictionary_free(),
- * only the dictionary helper structures (i.e. underlying linked list)
- * should be freed.
+ * should *NOT* be free()d on cgroup_dictionary_free(), only the dictionary
+ * helper structures (i.e. underlying linked list) should be freed.
*/
-#define CG_DICT_DONT_FREE_ITEMS 1
+#define CG_DICT_DONT_FREE_ITEMS 1
/**
* Dictionary of (name, value) items.
- * The dictionary keeps its order, iterator iterates in the same order
- * as the items were added there. It is *not* hash-style structure,
- * it does not provide random access to its items nor quick search.
- * This structure should be opaque to users of the dictionary, underlying data
- * structure might change anytime and without warnings.
+ * The dictionary keeps its order, iterator iterates in the same order as
+ * the items were added there. It is *not* hash-style structure, it does
+ * not provide random access to its items nor quick search. This structure
+ * should be opaque to users of the dictionary, underlying data structure
+ * might change anytime and without warnings.
*/
struct cgroup_dictionary {
struct cgroup_dictionary_item *head;
int cgroup_get_procname_from_procfs(pid_t pid, char **procname);
int cg_mkdir_p(const char *path);
struct cgroup *create_cgroup_from_name_value_pairs(const char *name,
- struct control_value *name_value, int nv_number);
+ struct control_value *name_value, int nv_number);
void init_cgroup_table(struct cgroup *cgroups, size_t count);
/*
/*
* config related structures
*/
-
extern __thread char *cg_namespace_table[CG_CONTROLLER_MAX];
/*
* config related API
*/
int cgroup_config_insert_cgroup(char *cg_name);
-int cgroup_config_parse_controller_options(char *controller,
- struct cgroup_dictionary *values);
+int cgroup_config_parse_controller_options(char *controller, struct cgroup_dictionary *values);
int template_config_insert_cgroup(char *cg_name);
-int template_config_parse_controller_options(char *controller,
- struct cgroup_dictionary *values);
+int template_config_parse_controller_options(char *controller, struct cgroup_dictionary *values);
int template_config_group_task_perm(char *perm_type, char *value);
int template_config_group_admin_perm(char *perm_type, char *value);
int cgroup_config_group_task_perm(char *perm_type, char *value);
/**
* Create an empty dictionary.
*/
-extern int cgroup_dictionary_create(struct cgroup_dictionary **dict,
- int flags);
+extern int cgroup_dictionary_create(struct cgroup_dictionary **dict, int flags);
+
/**
* Add an item to existing dictionary.
*/
-extern int cgroup_dictionary_add(struct cgroup_dictionary *dict,
- const char *name, const char *value);
+extern int cgroup_dictionary_add(struct cgroup_dictionary *dict, const char *name,
+ const char *value);
/**
* Fully destroy existing dictionary. Depending on flags passed to
* cgroup_dictionary_create(), names and values might get destroyed too.
* Start iterating through a dictionary. The items are returned in the same
* order as they were added using cgroup_dictionary_add().
*/
-extern int cgroup_dictionary_iterator_begin(struct cgroup_dictionary *dict,
- void **handle, const char **name, const char **value);
+extern int cgroup_dictionary_iterator_begin(struct cgroup_dictionary *dict, void **handle,
+ const char **name, const char **value);
/**
* Continue iterating through the dictionary.
*/
-extern int cgroup_dictionary_iterator_next(void **handle,
- const char **name, const char **value);
+extern int cgroup_dictionary_iterator_next(void **handle, const char **name, const char **value);
+
/**
* Finish iteration through the dictionary.
*/
extern void cgroup_dictionary_iterator_end(void **handle);
/**
- * Changes permissions for given path. If owner_is_umask is specified
- * then it uses owner permissions as a mask for group and others permissions.
+ * Changes permissions for given path. If owner_is_umask is specified then
+ * it uses owner permissions as a mask for group and others permissions.
*
* @param path Patch to chmod.
* @param mode File permissions to set.
* @param owner_is_umask Flag whether path owner permissions should be used
- * as a mask for group and others permissions.
+ * as a mask for group and
+ * others permissions.
*/
int cg_chmod_path(const char *path, mode_t mode, int owner_is_umask);
/**
* Build the path to the tasks or cgroup.procs file
*
- * @param path Output variable that will contain the path. Must be
- * of size FILENAME_MAX or larger
+ * @param path Output variable that will contain the path. Must be of size
+ * FILENAME_MAX or larger
* @param path_sz Size of the path string
* @param cg_name Cgroup name
* @param ctrl_name Controller name
*/
-int cgroup_build_tasks_procs_path(char * const path,
- size_t path_sz, const char * const cg_name,
+int cgroup_build_tasks_procs_path(char * const path, size_t path_sz, const char * const cg_name,
const char * const ctrl_name);
/**
*
* @note The cg_mount_table_lock must be held prior to calling this function
*/
-char *cg_build_path_locked(const char *setting, char *path,
- const char *controller);
+char *cg_build_path_locked(const char *setting, char *path, const char *controller);
/**
- * Given a cgroup controller and a setting within it, populate the setting's
- * value
+ * Given a cgroup controller and a setting within it, populate the setting's value
*
* @param ctrl_dir dirent representation of the setting, e.g. memory.stat
* @param cgroup current cgroup
*
* @note The cg_mount_table_lock must be held prior to calling this function
*/
-int cgroup_fill_cgc(struct dirent *ctrl_dir, struct cgroup *cgroup,
- struct cgroup_controller *cgc, int cg_index);
+int cgroup_fill_cgc(struct dirent *ctrl_dir, struct cgroup *cgroup, struct cgroup_controller *cgc,
+ int cg_index);
/**
* Given a controller name, test if it's mounted
* @param name The name of the name/value pair to be removed
* @return 0 on success. ECGROUPNOTEXIST if name does not exist.
*/
-int cgroup_remove_value(struct cgroup_controller * const controller,
- const char * const name);
+int cgroup_remove_value(struct cgroup_controller * const controller, const char * const name);
/**
* Free the specified controller from the group.
#define TEST_PROC_PID_CGROUP_FILE "test-procpidcgroup"
-int cgroup_parse_rules_options(char *options,
- struct cgroup_rule * const rule);
-
-int cg_get_cgroups_from_proc_cgroups(pid_t pid, char *cgroup_list[],
- char *controller_list[],
+int cgroup_parse_rules_options(char *options, struct cgroup_rule * const rule);
+int cg_get_cgroups_from_proc_cgroups(pid_t pid, char *cgroup_list[], char *controller_list[],
int list_len);
-
-bool cgroup_compare_ignore_rule(const struct cgroup_rule * const rule,
- pid_t pid, const char * const procname);
-
+bool cgroup_compare_ignore_rule(const struct cgroup_rule * const rule, pid_t pid,
+ const char * const procname);
bool cgroup_compare_wildcard_procname(const char * const rule_procname,
const char * const procname);
-
-int cgroup_process_v1_mnt(char *controllers[], struct mntent *ent,
- int *mnt_tbl_idx);
-
+int cgroup_process_v1_mnt(char *controllers[], struct mntent *ent, int *mnt_tbl_idx);
int cgroup_process_v2_mnt(struct mntent *ent, int *mnt_tbl_idx);
-
int cgroup_set_values_recursive(const char * const base,
- const struct cgroup_controller * const controller,
- bool ignore_non_dirty_failures);
-
-int cgroup_chown_chmod_tasks(const char * const cg_path,
- uid_t uid, gid_t gid, mode_t fperm);
-
-int cgroupv2_subtree_control(const char *path, const char *ctrl_name,
- bool enable);
-
-int cgroupv2_get_subtree_control(const char *path,
- const char *ctrl_name,
- bool * const enabled);
-
-int cgroupv2_controller_enabled(const char * const cg_name,
- const char * const ctrl_name);
+ const struct cgroup_controller * const controller,
+ bool ignore_non_dirty_failures);
+int cgroup_chown_chmod_tasks(const char * const cg_path, uid_t uid, gid_t gid, mode_t fperm);
+int cgroupv2_subtree_control(const char *path, const char *ctrl_name, bool enable);
+int cgroupv2_get_subtree_control(const char *path, const char *ctrl_name, bool * const enabled);
+int cgroupv2_controller_enabled(const char * const cg_name, const char * const ctrl_name);
#endif /* UNIT_TEST */
projects / thirdparty / libcgroup.git / commitdiff
