X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fbasic%2Fcgroup-util.h;h=e3f3bf080c422be242047a26b9220df01e97810a;hp=8fa1e9f8257093a969d5f21919074b18279c1842;hb=eaca07ccfdf5d7dabc50afc7e539c2413dd69d3e;hpb=faf2e887be42215c1999950d16d1975e70bbdfe9 diff --git a/src/basic/cgroup-util.h b/src/basic/cgroup-util.h index 8fa1e9f82..e3f3bf080 100644 --- a/src/basic/cgroup-util.h +++ b/src/basic/cgroup-util.h @@ -34,7 +34,9 @@ typedef enum CGroupController { CGROUP_CONTROLLER_CPUACCT, CGROUP_CONTROLLER_BLKIO, CGROUP_CONTROLLER_MEMORY, - CGROUP_CONTROLLER_DEVICE, + CGROUP_CONTROLLER_DEVICES, + CGROUP_CONTROLLER_PIDS, + CGROUP_CONTROLLER_NET_CLS, _CGROUP_CONTROLLER_MAX, _CGROUP_CONTROLLER_INVALID = -1, } CGroupController; @@ -47,10 +49,36 @@ typedef enum CGroupMask { CGROUP_MASK_CPUACCT = CGROUP_CONTROLLER_TO_MASK(CGROUP_CONTROLLER_CPUACCT), CGROUP_MASK_BLKIO = CGROUP_CONTROLLER_TO_MASK(CGROUP_CONTROLLER_BLKIO), CGROUP_MASK_MEMORY = CGROUP_CONTROLLER_TO_MASK(CGROUP_CONTROLLER_MEMORY), - CGROUP_MASK_DEVICE = CGROUP_CONTROLLER_TO_MASK(CGROUP_CONTROLLER_DEVICE), + CGROUP_MASK_DEVICES = CGROUP_CONTROLLER_TO_MASK(CGROUP_CONTROLLER_DEVICES), + CGROUP_MASK_PIDS = CGROUP_CONTROLLER_TO_MASK(CGROUP_CONTROLLER_PIDS), + CGROUP_MASK_NET_CLS = CGROUP_CONTROLLER_TO_MASK(CGROUP_CONTROLLER_NET_CLS), _CGROUP_MASK_ALL = CGROUP_CONTROLLER_TO_MASK(_CGROUP_CONTROLLER_MAX) - 1 } CGroupMask; +/* Special values for the cpu.shares attribute */ +#define CGROUP_CPU_SHARES_INVALID ((uint64_t) -1) +#define CGROUP_CPU_SHARES_MIN UINT64_C(2) +#define CGROUP_CPU_SHARES_MAX UINT64_C(262144) +#define CGROUP_CPU_SHARES_DEFAULT UINT64_C(1024) + +static inline bool CGROUP_CPU_SHARES_IS_OK(uint64_t x) { + return + x == CGROUP_CPU_SHARES_INVALID || + (x >= CGROUP_CPU_SHARES_MIN && x <= CGROUP_CPU_SHARES_MAX); +} + +/* Special values for the blkio.weight attribute */ +#define CGROUP_BLKIO_WEIGHT_INVALID ((uint64_t) -1) +#define CGROUP_BLKIO_WEIGHT_MIN UINT64_C(10) +#define CGROUP_BLKIO_WEIGHT_MAX UINT64_C(1000) +#define CGROUP_BLKIO_WEIGHT_DEFAULT UINT64_C(500) + +static inline bool CGROUP_BLKIO_WEIGHT_IS_OK(uint64_t x) { + return + x == CGROUP_BLKIO_WEIGHT_INVALID || + (x >= CGROUP_BLKIO_WEIGHT_MIN && x <= CGROUP_BLKIO_WEIGHT_MAX); +} + /* * General rules: * @@ -111,25 +139,25 @@ int cg_is_empty_recursive(const char *controller, const char *path); int cg_get_root_path(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_path_get_slice(const char *path, char **slice); -int cg_path_get_user_slice(const char *path, char **slice); +// UNNEEDED int cg_path_get_owner_uid(const char *path, uid_t *uid); +// UNNEEDED int cg_path_get_unit(const char *path, char **unit); +// UNNEEDED int cg_path_get_user_unit(const char *path, char **unit); +// UNNEEDED int cg_path_get_machine_name(const char *path, char **machine); +// UNNEEDED int cg_path_get_slice(const char *path, char **slice); +// UNNEEDED int cg_path_get_user_slice(const char *path, char **slice); int cg_shift_path(const char *cgroup, const char *cached_root, const char **shifted); int cg_pid_get_path_shifted(pid_t pid, const char *cached_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_pid_get_slice(pid_t pid, char **slice); -int cg_pid_get_user_slice(pid_t pid, char **slice); +// UNNEEDED int cg_pid_get_owner_uid(pid_t pid, uid_t *uid); +// UNNEEDED int cg_pid_get_unit(pid_t pid, char **unit); +// UNNEEDED int cg_pid_get_user_unit(pid_t pid, char **unit); +// UNNEEDED int cg_pid_get_machine_name(pid_t pid, char **machine); +// UNNEEDED int cg_pid_get_slice(pid_t pid, char **slice); +// UNNEEDED int cg_pid_get_user_slice(pid_t pid, char **slice); -int cg_path_decode_unit(const char *cgroup, char **unit); +// UNNEEDED int cg_path_decode_unit(const char *cgroup, char **unit); char *cg_escape(const char *p); char *cg_unescape(const char *p) _pure_; @@ -141,7 +169,7 @@ bool cg_controller_is_valid(const char *p); typedef const char* (*cg_migrate_callback_t)(CGroupMask mask, void *userdata); // UNNEEDED int cg_create_everywhere(CGroupMask supported, CGroupMask mask, const char *path); -int cg_attach_everywhere(CGroupMask supported, const char *path, pid_t pid, cg_migrate_callback_t callback, void *userdata); +// UNNEEDED int cg_attach_everywhere(CGroupMask supported, const char *path, pid_t pid, cg_migrate_callback_t callback, void *userdata); // UNNEEDED int cg_attach_many_everywhere(CGroupMask supported, const char *path, Set* pids, cg_migrate_callback_t callback, void *userdata); // UNNEEDED int cg_migrate_everywhere(CGroupMask supported, const char *from, const char *to, cg_migrate_callback_t callback, void *userdata); // UNNEEDED int cg_trim_everywhere(CGroupMask supported, const char *path, bool delete_root); @@ -154,8 +182,11 @@ int cg_mask_supported(CGroupMask *ret); int cg_unified(void); // UNNEEDED void cg_unified_flush(void); -bool cg_is_unified_wanted(void); -// UNNEEDED bool cg_is_legacy_wanted(void); +// UNNEEDED bool cg_is_unified_wanted(void); +bool cg_is_legacy_wanted(void); const char* cgroup_controller_to_string(CGroupController c) _const_; CGroupController cgroup_controller_from_string(const char *s) _pure_; + +// UNNEEDED int cg_cpu_shares_parse(const char *s, uint64_t *ret); +// UNNEEDED int cg_blkio_weight_parse(const char *s, uint64_t *ret);