/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ #pragma once /*** This file is part of systemd. Copyright 2013 Lennart Poettering systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ #include <stdbool.h> #include "list.h" #include "time-util.h" /* Maximum value for fixed (manual) net class ID assignment, * and also the value at which the range of automatic assignments starts */ #define CGROUP_NETCLASS_FIXED_MAX UINT32_C(65535) typedef struct CGroupContext CGroupContext; typedef struct CGroupDeviceAllow CGroupDeviceAllow; typedef struct CGroupBlockIODeviceWeight CGroupBlockIODeviceWeight; typedef struct CGroupBlockIODeviceBandwidth CGroupBlockIODeviceBandwidth; typedef enum CGroupDevicePolicy { /* When devices listed, will allow those, plus built-in ones, if none are listed will allow everything. */ CGROUP_AUTO, /* Everything forbidden, except built-in ones and listed ones. */ CGROUP_CLOSED, /* Everythings forbidden, except for the listed devices */ CGROUP_STRICT, _CGROUP_DEVICE_POLICY_MAX, _CGROUP_DEVICE_POLICY_INVALID = -1 } CGroupDevicePolicy; typedef enum CGroupNetClassType { /* Default - do not assign a net class */ CGROUP_NETCLASS_TYPE_NONE, /* Automatically assign a net class */ CGROUP_NETCLASS_TYPE_AUTO, /* Assign the net class that was provided by the user */ CGROUP_NETCLASS_TYPE_FIXED, } CGroupNetClassType; struct CGroupDeviceAllow { LIST_FIELDS(CGroupDeviceAllow, device_allow); char *path; bool r:1; bool w:1; bool m:1; }; struct CGroupBlockIODeviceWeight { LIST_FIELDS(CGroupBlockIODeviceWeight, device_weights); char *path; uint64_t weight; }; struct CGroupBlockIODeviceBandwidth { LIST_FIELDS(CGroupBlockIODeviceBandwidth, device_bandwidths); char *path; uint64_t bandwidth; bool read; }; struct CGroupContext { bool cpu_accounting; bool blockio_accounting; bool memory_accounting; bool tasks_accounting; uint64_t cpu_shares; uint64_t startup_cpu_shares; usec_t cpu_quota_per_sec_usec; uint64_t blockio_weight; uint64_t startup_blockio_weight; LIST_HEAD(CGroupBlockIODeviceWeight, blockio_device_weights); LIST_HEAD(CGroupBlockIODeviceBandwidth, blockio_device_bandwidths); uint64_t memory_limit; CGroupDevicePolicy device_policy; LIST_HEAD(CGroupDeviceAllow, device_allow); CGroupNetClassType netclass_type; uint32_t netclass_id; uint64_t tasks_max; bool delegate; }; #include "unit.h" #include "cgroup-util.h" void cgroup_context_init(CGroupContext *c); void cgroup_context_done(CGroupContext *c); void cgroup_context_dump(CGroupContext *c, FILE* f, const char *prefix); void cgroup_context_apply(CGroupContext *c, CGroupMask mask, const char *path, uint32_t netclass_id, ManagerState state); CGroupMask cgroup_context_get_mask(CGroupContext *c); void cgroup_context_free_device_allow(CGroupContext *c, CGroupDeviceAllow *a); void cgroup_context_free_blockio_device_weight(CGroupContext *c, CGroupBlockIODeviceWeight *w); void cgroup_context_free_blockio_device_bandwidth(CGroupContext *c, CGroupBlockIODeviceBandwidth *b); CGroupMask unit_get_own_mask(Unit *u); CGroupMask unit_get_siblings_mask(Unit *u); CGroupMask unit_get_members_mask(Unit *u); CGroupMask unit_get_subtree_mask(Unit *u); CGroupMask unit_get_target_mask(Unit *u); CGroupMask unit_get_enable_mask(Unit *u); void unit_update_cgroup_members_masks(Unit *u); char *unit_default_cgroup_path(Unit *u); int unit_set_cgroup_path(Unit *u, const char *path); int unit_realize_cgroup(Unit *u); void unit_release_cgroup(Unit *u); void unit_prune_cgroup(Unit *u); int unit_watch_cgroup(Unit *u); int unit_attach_pids_to_cgroup(Unit *u); int unit_add_to_netclass_cgroup(Unit *u); int unit_remove_from_netclass_cgroup(Unit *u); int manager_setup_cgroup(Manager *m); void manager_shutdown_cgroup(Manager *m, bool delete); unsigned manager_dispatch_cgroup_queue(Manager *m); Unit *manager_get_unit_by_cgroup(Manager *m, const char *cgroup); Unit *manager_get_unit_by_pid_cgroup(Manager *m, pid_t pid); Unit* manager_get_unit_by_pid(Manager *m, pid_t pid); int unit_search_main_pid(Unit *u, pid_t *ret); int unit_watch_all_pids(Unit *u); int unit_get_memory_current(Unit *u, uint64_t *ret); int unit_get_tasks_current(Unit *u, uint64_t *ret); int unit_get_cpu_usage(Unit *u, nsec_t *ret); int unit_reset_cpu_usage(Unit *u); bool unit_cgroup_delegate(Unit *u); int unit_notify_cgroup_empty(Unit *u); int manager_notify_cgroup_empty(Manager *m, const char *group); void unit_invalidate_cgroup(Unit *u, CGroupMask m); void manager_invalidate_startup_units(Manager *m); const char* cgroup_device_policy_to_string(CGroupDevicePolicy i) _const_; CGroupDevicePolicy cgroup_device_policy_from_string(const char *s) _pure_;