251 lines
8.0 KiB
C
251 lines
8.0 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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#include <stdbool.h>
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#include "cgroup-util.h"
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#include "ip-address-access.h"
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#include "list.h"
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#include "time-util.h"
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typedef struct CGroupContext CGroupContext;
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typedef struct CGroupDeviceAllow CGroupDeviceAllow;
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typedef struct CGroupIODeviceWeight CGroupIODeviceWeight;
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typedef struct CGroupIODeviceLimit CGroupIODeviceLimit;
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typedef struct CGroupIODeviceLatency CGroupIODeviceLatency;
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typedef struct CGroupBlockIODeviceWeight CGroupBlockIODeviceWeight;
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typedef struct CGroupBlockIODeviceBandwidth CGroupBlockIODeviceBandwidth;
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typedef enum CGroupDevicePolicy {
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/* When devices listed, will allow those, plus built-in ones,
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if none are listed will allow everything. */
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CGROUP_AUTO,
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/* Everything forbidden, except built-in ones and listed ones. */
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CGROUP_CLOSED,
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/* Everything forbidden, except for the listed devices */
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CGROUP_STRICT,
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_CGROUP_DEVICE_POLICY_MAX,
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_CGROUP_DEVICE_POLICY_INVALID = -1
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} CGroupDevicePolicy;
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struct CGroupDeviceAllow {
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LIST_FIELDS(CGroupDeviceAllow, device_allow);
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char *path;
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bool r:1;
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bool w:1;
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bool m:1;
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};
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struct CGroupIODeviceWeight {
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LIST_FIELDS(CGroupIODeviceWeight, device_weights);
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char *path;
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uint64_t weight;
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};
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struct CGroupIODeviceLimit {
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LIST_FIELDS(CGroupIODeviceLimit, device_limits);
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char *path;
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uint64_t limits[_CGROUP_IO_LIMIT_TYPE_MAX];
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};
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struct CGroupIODeviceLatency {
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LIST_FIELDS(CGroupIODeviceLatency, device_latencies);
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char *path;
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usec_t target_usec;
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};
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struct CGroupBlockIODeviceWeight {
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LIST_FIELDS(CGroupBlockIODeviceWeight, device_weights);
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char *path;
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uint64_t weight;
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};
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struct CGroupBlockIODeviceBandwidth {
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LIST_FIELDS(CGroupBlockIODeviceBandwidth, device_bandwidths);
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char *path;
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uint64_t rbps;
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uint64_t wbps;
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};
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struct CGroupContext {
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bool cpu_accounting;
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bool io_accounting;
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bool blockio_accounting;
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bool memory_accounting;
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bool tasks_accounting;
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bool ip_accounting;
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/* Configures the memory.oom.group attribute (on unified) */
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bool memory_oom_group;
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bool delegate;
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CGroupMask delegate_controllers;
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CGroupMask disable_controllers;
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/* For unified hierarchy */
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uint64_t cpu_weight;
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uint64_t startup_cpu_weight;
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usec_t cpu_quota_per_sec_usec;
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usec_t cpu_quota_period_usec;
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uint64_t io_weight;
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uint64_t startup_io_weight;
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LIST_HEAD(CGroupIODeviceWeight, io_device_weights);
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LIST_HEAD(CGroupIODeviceLimit, io_device_limits);
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LIST_HEAD(CGroupIODeviceLatency, io_device_latencies);
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uint64_t default_memory_min;
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uint64_t default_memory_low;
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uint64_t memory_min;
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uint64_t memory_low;
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uint64_t memory_high;
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uint64_t memory_max;
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uint64_t memory_swap_max;
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bool default_memory_min_set;
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bool default_memory_low_set;
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bool memory_min_set;
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bool memory_low_set;
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LIST_HEAD(IPAddressAccessItem, ip_address_allow);
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LIST_HEAD(IPAddressAccessItem, ip_address_deny);
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/* For legacy hierarchies */
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uint64_t cpu_shares;
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uint64_t startup_cpu_shares;
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uint64_t blockio_weight;
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uint64_t startup_blockio_weight;
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LIST_HEAD(CGroupBlockIODeviceWeight, blockio_device_weights);
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LIST_HEAD(CGroupBlockIODeviceBandwidth, blockio_device_bandwidths);
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uint64_t memory_limit;
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CGroupDevicePolicy device_policy;
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LIST_HEAD(CGroupDeviceAllow, device_allow);
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/* Common */
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uint64_t tasks_max;
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};
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/* Used when querying IP accounting data */
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typedef enum CGroupIPAccountingMetric {
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CGROUP_IP_INGRESS_BYTES,
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CGROUP_IP_INGRESS_PACKETS,
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CGROUP_IP_EGRESS_BYTES,
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CGROUP_IP_EGRESS_PACKETS,
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_CGROUP_IP_ACCOUNTING_METRIC_MAX,
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_CGROUP_IP_ACCOUNTING_METRIC_INVALID = -1,
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} CGroupIPAccountingMetric;
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/* Used when querying IO accounting data */
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typedef enum CGroupIOAccountingMetric {
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CGROUP_IO_READ_BYTES,
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CGROUP_IO_WRITE_BYTES,
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CGROUP_IO_READ_OPERATIONS,
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CGROUP_IO_WRITE_OPERATIONS,
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_CGROUP_IO_ACCOUNTING_METRIC_MAX,
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_CGROUP_IO_ACCOUNTING_METRIC_INVALID = -1,
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} CGroupIOAccountingMetric;
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typedef struct Unit Unit;
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typedef struct Manager Manager;
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usec_t cgroup_cpu_adjust_period(usec_t period, usec_t quota, usec_t resolution, usec_t max_period);
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void cgroup_context_init(CGroupContext *c);
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void cgroup_context_done(CGroupContext *c);
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void cgroup_context_dump(CGroupContext *c, FILE* f, const char *prefix);
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void cgroup_context_free_device_allow(CGroupContext *c, CGroupDeviceAllow *a);
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void cgroup_context_free_io_device_weight(CGroupContext *c, CGroupIODeviceWeight *w);
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void cgroup_context_free_io_device_limit(CGroupContext *c, CGroupIODeviceLimit *l);
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void cgroup_context_free_io_device_latency(CGroupContext *c, CGroupIODeviceLatency *l);
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void cgroup_context_free_blockio_device_weight(CGroupContext *c, CGroupBlockIODeviceWeight *w);
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void cgroup_context_free_blockio_device_bandwidth(CGroupContext *c, CGroupBlockIODeviceBandwidth *b);
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int cgroup_add_device_allow(CGroupContext *c, const char *dev, const char *mode);
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CGroupMask unit_get_own_mask(Unit *u);
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CGroupMask unit_get_delegate_mask(Unit *u);
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CGroupMask unit_get_members_mask(Unit *u);
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CGroupMask unit_get_siblings_mask(Unit *u);
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CGroupMask unit_get_subtree_mask(Unit *u);
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CGroupMask unit_get_disable_mask(Unit *u);
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CGroupMask unit_get_ancestor_disable_mask(Unit *u);
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CGroupMask unit_get_target_mask(Unit *u);
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CGroupMask unit_get_enable_mask(Unit *u);
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void unit_invalidate_cgroup_members_masks(Unit *u);
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void unit_add_to_cgroup_realize_queue(Unit *u);
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const char *unit_get_realized_cgroup_path(Unit *u, CGroupMask mask);
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char *unit_default_cgroup_path(const Unit *u);
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int unit_set_cgroup_path(Unit *u, const char *path);
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int unit_pick_cgroup_path(Unit *u);
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int unit_realize_cgroup(Unit *u);
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void unit_release_cgroup(Unit *u);
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void unit_prune_cgroup(Unit *u);
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int unit_watch_cgroup(Unit *u);
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int unit_watch_cgroup_memory(Unit *u);
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void unit_add_to_cgroup_empty_queue(Unit *u);
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int unit_attach_pids_to_cgroup(Unit *u, Set *pids, const char *suffix_path);
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int manager_setup_cgroup(Manager *m);
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void manager_shutdown_cgroup(Manager *m, bool delete);
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unsigned manager_dispatch_cgroup_realize_queue(Manager *m);
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Unit *manager_get_unit_by_cgroup(Manager *m, const char *cgroup);
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Unit *manager_get_unit_by_pid_cgroup(Manager *m, pid_t pid);
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Unit* manager_get_unit_by_pid(Manager *m, pid_t pid);
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uint64_t unit_get_ancestor_memory_min(Unit *u);
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uint64_t unit_get_ancestor_memory_low(Unit *u);
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int unit_search_main_pid(Unit *u, pid_t *ret);
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int unit_watch_all_pids(Unit *u);
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int unit_synthesize_cgroup_empty_event(Unit *u);
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int unit_get_memory_current(Unit *u, uint64_t *ret);
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int unit_get_tasks_current(Unit *u, uint64_t *ret);
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int unit_get_cpu_usage(Unit *u, nsec_t *ret);
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int unit_get_io_accounting(Unit *u, CGroupIOAccountingMetric metric, bool allow_cache, uint64_t *ret);
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int unit_get_ip_accounting(Unit *u, CGroupIPAccountingMetric metric, uint64_t *ret);
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int unit_reset_cpu_accounting(Unit *u);
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int unit_reset_ip_accounting(Unit *u);
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int unit_reset_io_accounting(Unit *u);
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int unit_reset_accounting(Unit *u);
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#define UNIT_CGROUP_BOOL(u, name) \
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({ \
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CGroupContext *cc = unit_get_cgroup_context(u); \
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cc ? cc->name : false; \
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})
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bool manager_owns_host_root_cgroup(Manager *m);
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bool unit_has_host_root_cgroup(Unit *u);
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int manager_notify_cgroup_empty(Manager *m, const char *group);
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void unit_invalidate_cgroup(Unit *u, CGroupMask m);
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void unit_invalidate_cgroup_bpf(Unit *u);
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void manager_invalidate_startup_units(Manager *m);
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const char* cgroup_device_policy_to_string(CGroupDevicePolicy i) _const_;
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CGroupDevicePolicy cgroup_device_policy_from_string(const char *s) _pure_;
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bool unit_cgroup_delegate(Unit *u);
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