X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/4b17d6b6e417f714551ec129064745ea9919780e..39236c6e673c41db228275375ab7fdb0f837b292:/osfmk/kern/task.h diff --git a/osfmk/kern/task.h b/osfmk/kern/task.h index 9b6e4a1f6..1b2991861 100644 --- a/osfmk/kern/task.h +++ b/osfmk/kern/task.h @@ -127,59 +127,8 @@ #define TASK_POLICY_RESOURCE_USAGE_COUNT 6 -/* - * Process Action and Policy bit definitions - -The bit defns of the policy states -64 60 56 52 48 44 40 36 32 28 24 20 16 12 8 0 -|----|-----|----|----|----|----|----|----|----|----|----|----|----|----|--------| -|RFU | RFU | PWR| NET| DSK| CPU| VM | WM | LVM| RFU| CPU| NET| GPU| DSK| BGRND | -|----|-----|----|----|----|----|----|----|----|----|----|----|----|----|--------| -|<----------- RESOURCE USAGE -------->|< LOWSRC>|<-HARDWARE ACCESS->|BackGrnd| -|----|-----|----|----|----|----|----|----|----|----|----|----|----|----|--------| - -* -*/ - -#define TASK_POLICY_BACKGROUND_ATTRIBUTE_NONE 0x00 -#define TASK_POLICY_BACKGROUND_ATTRIBUTE_LOWPRI 0x01 -#define TASK_POLICY_BACKGROUND_ATTRIBUTE_DISKTHROTTLE 0x02 -#define TASK_POLICY_BACKGROUND_ATTRIBUTE_NETTHROTTLE 0x04 -#define TASK_POLICY_BACKGROUND_ATTRIBUTE_NOGPU 0x08 -#if CONFIG_EMBEDDED -#define TASK_POLICY_BACKGROUND_ATTRIBUTE_ALL 0x0F -#else /* CONFIG_EMBEDDED */ -#define TASK_POLICY_BACKGROUND_ATTRIBUTE_ALL 0x07 -#endif /* CONFIG_EMBEDDED */ -#define TASK_POLICY_BACKGROUND_ATTRIBUTE_DEFAULT TASK_POLICY_BACKGROUND_ATTRIBUTE_ALL - -/* Hardware disk access attributes, bit different as it should reflect IOPOL_XXX */ -#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_NONE 0x00 -#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_FULLACCESS 0x01 -#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_NORMAL 0x01 -#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_PASSIVE 0x02 -#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_THROTTLE 0x03 -#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_UTILITY 0x04 -#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_DEFAULT TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_FULLACCESS - -/* Hardware GPU access attributes */ -#define TASK_POLICY_HWACCESS_GPU_ATTRIBUTE_NONE 0x00 -#define TASK_POLICY_HWACCESS_GPU_ATTRIBUTE_FULLACCESS 0x00 -#define TASK_POLICY_HWACCESS_GPU_ATTRIBUTE_NOACCESS 0x01 -#define TASK_POLICY_HWACCESS_GPU_ATTRIBUTE_DEFAULT TASK_POLICY_HWACCESS_GPU_ATTRIBUTE_FULLACCESS - -/* Hardware Network access attributes */ -#define TASK_POLICY_HWACCESS_NET_ATTRIBUTE_NONE 0x00 -#define TASK_POLICY_HWACCESS_NET_ATTRIBUTE_FULLACCESS 0x00 -#define TASK_POLICY_HWACCESS_NET_ATTRIBUTE_THROTTLE 0x01 -#define TASK_POLICY_HWACCESS_NET_ATTRIBUTE_DEFAULT TASK_POLICY_HWACCESS_NET_ATTRIBUTE_FULLACCESS - -/* Hardware CPU access attributes */ -#define TASK_POLICY_HWACCESS_CPU_ATTRIBUTE_NONE 0x00 -#define TASK_POLICY_HWACCESS_CPU_ATTRIBUTE_FULLACCESS 0x00 -#define TASK_POLICY_HWACCESS_CPU_ATTRIBUTE_ONE 0x01 -#define TASK_POLICY_HWACCESS_CPU_ATTRIBUTE_LLCACHE 0x02 -#define TASK_POLICY_HWACCESS_CPU_ATTRIBUTE_DEFAULT TASK_POLICY_HWACCESS_CPU_ATTRIBUTE_FULLACCESS +#define TASK_POLICY_CPUMON_DISABLE 0xFF +#define TASK_POLICY_CPUMON_DEFAULTS 0xFE /* Resource usage/low resource attributes */ #define TASK_POLICY_RESOURCE_ATTRIBUTE_NONE 0x00 @@ -194,43 +143,9 @@ The bit defns of the policy states #ifdef MACH_KERNEL_PRIVATE -typedef struct process_policy { - uint64_t apptype:4, - rfu1:4, - ru_power:4, /* Resource Usage Power */ - ru_net:4, /* Resource Usage Network */ - ru_disk:4, /* Resource Usage Disk */ - ru_cpu:4, /* Resource Usage CPU */ - ru_virtmem:4, /* Resource Usage VM */ - ru_wiredmem:4,/* Resource Usage Wired Memory */ - low_vm:4, /* Low Virtual Memory */ - rfu2:4, - hw_cpu:4, /* HW Access to CPU */ - hw_net:4, /* HW Access to Network */ - hw_gpu:4, /* HW Access to GPU */ - hw_disk:4, /* HW Access to Disk */ - hw_bg:8; /* Darwin Background Policy */ -} process_policy_t; - -#if CONFIG_EMBEDDED - -typedef struct task_watcher { - queue_chain_t tw_links; /* queueing of threads */ - task_t tw_task; /* task that is being watched */ - thread_t tw_thread; /* thread that is watching the watch_task */ - int tw_state; /* the current app state of the thread */ - int tw_importance; /* importance prior to backgrounding */ -} task_watch_t; - -extern lck_mtx_t task_watch_mtx; - -#endif /* CONFIG_EMBEDDED */ #include -extern process_policy_t default_task_proc_policy; /* init value for the process policy attributes */ -extern process_policy_t default_task_null_policy; /* none as the value for the process policy attributes */ - struct task { /* Synchronization/destruction information */ decl_lck_mtx_data(,lock) /* Task's lock */ @@ -255,12 +170,13 @@ struct task { /* User-visible scheduling information */ integer_t user_stop_count; /* outstanding stops */ - - task_role_t role; + integer_t legacy_stop_count; /* outstanding legacy stops */ integer_t priority; /* base priority for threads */ integer_t max_priority; /* maximum priority for threads */ + integer_t importance; /* priority offset (BSD 'nice' value) */ + /* Task security and audit tokens */ security_token_t sec_token; audit_token_t audit_token; @@ -284,6 +200,7 @@ struct task { struct ipc_port *itk_seatbelt; /* a send right */ struct ipc_port *itk_gssd; /* yet another send right */ struct ipc_port *itk_task_access; /* and another send right */ + struct ipc_port *itk_resume; /* a receive right to resume this task */ struct ipc_port *itk_registered[TASK_PORT_REGISTER_MAX]; /* all send rights */ @@ -291,9 +208,7 @@ struct task { /* Synchronizer ownership information */ queue_head_t semaphore_list; /* list of owned semaphores */ - queue_head_t lock_set_list; /* list of owned lock sets */ int semaphores_owned; /* number of semaphores owned */ - int lock_sets_owned; /* number of lock sets owned */ ledger_t ledger; @@ -319,15 +234,20 @@ struct task { void *bsd_info; #endif struct vm_shared_region *shared_region; - uint32_t taskFeatures[2]; /* Special feature for this task */ -#define tf64BitAddr 0x80000000 /* Task has 64-bit addressing */ -#define tf64BitData 0x40000000 /* Task has 64-bit data registers */ + uint32_t t_flags; /* general-purpose task flags protected by task_lock (TL) */ +#define TF_64B_ADDR 0x1 /* task has 64-bit addressing */ +#define TF_64B_DATA 0x2 /* task has 64-bit data registers */ +#define TF_CPUMON_WARNING 0x4 /* task has at least one thread in CPU usage warning zone */ +#define TF_WAKEMON_WARNING 0x8 /* task is in wakeups monitor warning zone */ +#define TF_TELEMETRY (TF_CPUMON_WARNING | TF_WAKEMON_WARNING) /* task is a telemetry participant */ #define task_has_64BitAddr(task) \ - (((task)->taskFeatures[0] & tf64BitAddr) != 0) + (((task)->t_flags & TF_64B_ADDR) != 0) #define task_set_64BitAddr(task) \ - ((task)->taskFeatures[0] |= tf64BitAddr) + ((task)->t_flags |= TF_64B_ADDR) #define task_clear_64BitAddr(task) \ - ((task)->taskFeatures[0] &= ~tf64BitAddr) + ((task)->t_flags &= ~TF_64B_ADDR) +#define task_has_64BitData(task) \ + (((task)->t_flags & TF_64B_DATA) != 0) mach_vm_address_t all_image_info_addr; /* dyld __all_image_info */ mach_vm_size_t all_image_info_size; /* section location and size */ @@ -342,10 +262,11 @@ struct task { boolean_t pidsuspended; /* pid_suspend called; no threads can execute */ boolean_t frozen; /* frozen; private resident pages committed to swap */ - process_policy_t ext_appliedstate; /* externally applied actions */ - process_policy_t ext_policystate; /* externally defined process policy states*/ - process_policy_t appliedstate; /* self applied acions */ - process_policy_t policystate; /* process wide policy states */ + boolean_t changing_freeze_state; /* in the process of freezing or thawing */ + uint16_t policy_ru_cpu :4, + policy_ru_cpu_ext :4, + applied_ru_cpu :4, + applied_ru_cpu_ext :4; uint8_t rusage_cpu_flags; uint8_t rusage_cpu_percentage; /* Task-wide CPU limit percentage */ uint64_t rusage_cpu_interval; /* Task-wide CPU limit interval */ @@ -353,24 +274,47 @@ struct task { uint64_t rusage_cpu_perthr_interval; /* Per-thread CPU limit interval */ uint64_t rusage_cpu_deadline; thread_call_t rusage_cpu_callt; -#if CONFIG_EMBEDDED - uint32_t appstate; /* the current appstate */ - queue_head_t task_watchers; /* app state watcher threads */ - int num_taskwatchers; - int watchapplying; -#endif /* CONFIG_EMBEDDED */ + +#if IMPORTANCE_INHERITANCE + uint32_t imp_receiver :1, /* the task can receive importance boost */ + imp_donor :1, /* the task always sends boosts regardless of boost status */ + imp_reserved :30; /* reserved for future use */ + + uint32_t task_imp_assertcnt; /* total number of boost assertions (kernel managed plus userspace managed) */ + uint32_t task_imp_externcnt; /* number of boost assertions externalized (userspace managed) */ +#endif /* IMPORTANCE_INHERITANCE */ vm_extmod_statistics_data_t extmod_statistics; - natural_t proc_terminate; /* the process is marked for proc_terminate */ + +#if MACH_ASSERT + int8_t suspends_outstanding; /* suspends this task performed in excess of resumes */ +#endif + + struct task_requested_policy requested_policy; + struct task_effective_policy effective_policy; + struct task_pended_policy pended_policy; + + /* + * Can be merged with imp_donor bits, once the IMPORTANCE_INHERITANCE macro goes away. + */ + uint32_t low_mem_notified_warn :1, /* warning low memory notification is sent to the task */ + low_mem_notified_critical :1, /* critical low memory notification is sent to the task */ + purged_memory_warn :1, /* purgeable memory of the task is purged for warning level pressure */ + purged_memory_critical :1, /* purgeable memory of the task is purged for critical level pressure */ + mem_notify_reserved :28; /* reserved for future use */ /* Statistics accumulated for terminated threads from this task */ uint32_t task_timer_wakeups_bin_1; uint32_t task_timer_wakeups_bin_2; + + int task_volatile_objects; /* # of purgeable VM objects made + * "volatile" by this task */ }; -#define task_lock(task) lck_mtx_lock(&(task)->lock) -#define task_lock_try(task) lck_mtx_try_lock(&(task)->lock) -#define task_unlock(task) lck_mtx_unlock(&(task)->lock) +#define task_lock(task) lck_mtx_lock(&(task)->lock) +#define task_lock_assert_owned(task) lck_mtx_assert(&(task)->lock, LCK_MTX_ASSERT_OWNED) +#define task_lock_try(task) lck_mtx_try_lock(&(task)->lock) +#define task_unlock(task) lck_mtx_unlock(&(task)->lock) #if CONFIG_MACF_MACH #define maclabel label->lh_label @@ -387,11 +331,18 @@ extern void tasklabel_unlock2(task_t a, task_t b); #define itk_lock(task) lck_mtx_lock(&(task)->itk_lock_data) #define itk_unlock(task) lck_mtx_unlock(&(task)->itk_lock_data) +#define TASK_REFERENCE_LEAK_DEBUG 0 + +#if TASK_REFERENCE_LEAK_DEBUG +extern void task_reference_internal(task_t task); +extern uint32_t task_deallocate_internal(task_t task); +#else #define task_reference_internal(task) \ (void)hw_atomic_add(&(task)->ref_count, 1) #define task_deallocate_internal(task) \ hw_atomic_sub(&(task)->ref_count, 1) +#endif #define task_reference(task) \ MACRO_BEGIN \ @@ -406,7 +357,7 @@ extern kern_return_t kernel_task_create( task_t *child); /* Initialize task module */ -extern void task_init(void) __attribute__((section("__TEXT, initcode"))); +extern void task_init(void); #define current_task_fast() (current_thread()->task) #define current_task() current_task_fast() @@ -493,6 +444,10 @@ extern kern_return_t task_importance( task_t task, integer_t importance); +extern void task_power_info_locked( + task_t task, + task_power_info_t info); + extern void task_vtimer_set( task_t task, integer_t which); @@ -534,6 +489,11 @@ extern vm_map_t get_task_map_reference(task_t); extern vm_map_t swap_task_map(task_t, thread_t, vm_map_t, boolean_t); extern pmap_t get_task_pmap(task_t); extern uint64_t get_task_resident_size(task_t); +extern uint64_t get_task_phys_footprint(task_t); +extern uint64_t get_task_phys_footprint_max(task_t); + +extern kern_return_t task_set_phys_footprint_limit_internal(task_t, int, int *, boolean_t); +extern kern_return_t task_get_phys_footprint_limit(task_t task, int *limit_mb); extern boolean_t is_kerneltask(task_t task); @@ -559,106 +519,166 @@ struct _task_ledger_indices { int tkm_shared; int phys_mem; int wired_mem; + int iokit_mem; + int phys_footprint; + int phys_compressed; int platform_idle_wakeups; int interrupt_wakeups; }; extern struct _task_ledger_indices task_ledgers; -int proc_get_task_bg_policy(task_t task); -int proc_get_thread_bg_policy(task_t task, uint64_t tid); -int proc_get_self_isbackground(void); -int proc_get_selfthread_isbackground(void); - -int proc_get_darwinbgstate(task_t, uint32_t *); -int proc_set_bgtaskpolicy(task_t task, int intval); -int proc_set_and_apply_bgtaskpolicy(task_t task, int intval); -int proc_set_bgthreadpolicy(task_t task, uint64_t tid, int val); -int proc_set_and_apply_bgthreadpolicy(task_t task, uint64_t tid, int val); - -int proc_add_bgtaskpolicy(task_t task, int val); -int proc_add_bgthreadpolicy(task_t task, uint64_t tid, int val); -int proc_remove_bgtaskpolicy(task_t task, int policy); -int proc_remove_bgthreadpolicy(task_t task, uint64_t tid, int val); - -int proc_apply_bgtaskpolicy(task_t task); -int proc_apply_bgtaskpolicy_external(task_t task); -int proc_apply_bgthreadpolicy(task_t task, uint64_t tid); -int proc_apply_bgtask_selfpolicy(void); -int proc_apply_bgthread_selfpolicy(void); -int proc_apply_workq_bgthreadpolicy(thread_t); - -int proc_restore_bgtaskpolicy(task_t task); -int proc_restore_bgthreadpolicy(task_t task, uint64_t tid); -int proc_restore_bgthread_selfpolicy(void); -int proc_restore_workq_bgthreadpolicy(thread_t); -void proc_task_remove_throttle(task_t task); - -/* hw access routines */ -int proc_apply_task_diskacc(task_t task, int policy); -int proc_apply_thread_diskacc(task_t task, uint64_t tid, int policy); -int proc_apply_thread_selfdiskacc(int policy); -int proc_get_task_disacc(task_t task); -int proc_get_task_selfdiskacc(void); -int proc_get_diskacc(thread_t thread); -int proc_get_thread_selfdiskacc(void); -int proc_denyinherit_policy(task_t task); -int proc_denyselfset_policy(task_t task); - -int proc_get_task_selfgpuacc_deny(void); -int proc_apply_task_gpuacc(task_t task, int prio); - -int proc_get_task_ruse_cpu(task_t task, uint32_t * policyp, uint32_t * percentagep, uint64_t * intervalp, uint64_t * deadlinep); -int proc_set_task_ruse_cpu(task_t task, uint32_t policy, uint32_t percentage, uint64_t interval, uint64_t deadline); -int proc_clear_task_ruse_cpu(task_t task); -thread_t task_findtid(task_t, uint64_t); +/* Begin task_policy */ -#define TASK_RUSECPU_FLAGS_PROC_LIMIT 0x1 -#define TASK_RUSECPU_FLAGS_PERTHR_LIMIT 0x2 -#define TASK_RUSECPU_FLAGS_DEADLINE 0x4 +/* value */ +#define TASK_POLICY_DISABLE 0x0 +#define TASK_POLICY_ENABLE 0x1 -#define PROC_POLICY_OSX_APPTYPE_NONE 0 -#if CONFIG_EMBEDDED -#define PROC_POLICY_IOS_RESV1_APPTYPE 1 -#define PROC_POLICY_IOS_APPLE_DAEMON 2 -#define PROC_POLICY_IOS_APPTYPE 3 -#define PROC_POLICY_IOS_NONUITYPE 4 -#else -#define PROC_POLICY_OSX_APPTYPE_TAL 1 -#define PROC_POLICY_OSX_APPTYPE_WIDGET 2 -#define PROC_POLICY_OSX_APPTYPE_DBCLIENT 2 /* Not a bug, just rename of widget */ -#endif +/* category */ +#define TASK_POLICY_INTERNAL 0x0 +#define TASK_POLICY_EXTERNAL 0x1 +#define TASK_POLICY_ATTRIBUTE 0x2 -void proc_set_task_apptype(task_t task, int type, thread_t thread); -int proc_disable_task_apptype(task_t task, int policy_subtype); -int proc_enable_task_apptype(task_t task, int policy_subtype); +/* for tracing */ +#define TASK_POLICY_TASK 0x4 +#define TASK_POLICY_THREAD 0x8 -#if CONFIG_EMBEDDED -extern int proc_setthread_saved_importance(thread_t thread, int importance); -#endif +/* flavors (also DBG_IMPORTANCE subclasses 0x20 - 0x3F) */ + +/* internal or external, thread or task */ +#define TASK_POLICY_DARWIN_BG 0x21 +#define TASK_POLICY_IOPOL 0x22 +#define TASK_POLICY_IO 0x23 +#define TASK_POLICY_PASSIVE_IO 0x24 + +/* internal or external, task only */ +#define TASK_POLICY_DARWIN_BG_AND_GPU 0x25 +#define TASK_POLICY_GPU_DENY 0x26 + +/* internal, task only */ +#define TASK_POLICY_DARWIN_BG_IOPOL 0x27 + +/* task-only attributes */ +#define TASK_POLICY_TAL 0x28 +#define TASK_POLICY_BOOST 0x29 +#define TASK_POLICY_ROLE 0x2A +#define TASK_POLICY_SUPPRESSED_CPU 0x2B +#define TASK_POLICY_TERMINATED 0x2C +#define TASK_POLICY_NEW_SOCKETS_BG 0x2D +#define TASK_POLICY_LOWPRI_CPU 0x2E +#define TASK_POLICY_LATENCY_QOS 0x2F +#define TASK_POLICY_THROUGH_QOS 0x30 +#define TASK_POLICY_WATCHERS_BG 0x31 + +/* thread-only attributes */ +#define TASK_POLICY_PIDBIND_BG 0x32 +#define TASK_POLICY_WORKQ_BG 0x33 + +#define TASK_POLICY_MAX 0x3F + +/* The main entrance to task policy is this function */ +extern void proc_set_task_policy(task_t task, thread_t thread, int category, int flavor, int value); +extern int proc_get_task_policy(task_t task, thread_t thread, int category, int flavor); + +/* For use by kernel threads and others who don't hold a reference on the target thread */ +extern void proc_set_task_policy_thread(task_t task, uint64_t tid, int category, int flavor, int value); + +extern void proc_set_task_apptype(task_t task, int type); + +/* IO Throttle tiers */ +#define THROTTLE_LEVEL_NONE -1 +#define THROTTLE_LEVEL_TIER0 0 /* IOPOL_NORMAL, IOPOL_DEFAULT, IOPOL_PASSIVE */ + +#define THROTTLE_LEVEL_THROTTLED 1 +#define THROTTLE_LEVEL_TIER1 1 /* IOPOL_STANDARD */ +#define THROTTLE_LEVEL_TIER2 2 /* IOPOL_UTILITY */ +#define THROTTLE_LEVEL_TIER3 3 /* IOPOL_THROTTLE */ + +#define THROTTLE_LEVEL_START 0 +#define THROTTLE_LEVEL_END 3 + +#define THROTTLE_LEVEL_COMPRESSOR_TIER0 THROTTLE_LEVEL_TIER0 +#define THROTTLE_LEVEL_COMPRESSOR_TIER1 THROTTLE_LEVEL_TIER1 +#define THROTTLE_LEVEL_COMPRESSOR_TIER2 THROTTLE_LEVEL_TIER2 + +#define THROTTLE_LEVEL_PAGEOUT_THROTTLED THROTTLE_LEVEL_TIER2 +#define THROTTLE_LEVEL_PAGEOUT_UNTHROTTLED THROTTLE_LEVEL_TIER1 + +extern int proc_apply_workq_bgthreadpolicy(thread_t thread); +extern int proc_restore_workq_bgthreadpolicy(thread_t thread); + +extern int proc_get_darwinbgstate(task_t task, uint32_t *flagsp); +extern boolean_t proc_task_is_tal(task_t task); +extern integer_t task_grab_latency_qos(task_t task); +extern void task_policy_create(task_t task, int parent_boosted); + +/* + * Get effective policy + * Only for use by relevant subsystem, should never be passed into a setter! + */ + +extern int proc_get_effective_task_policy(task_t task, int flavor); +extern int proc_get_effective_thread_policy(thread_t thread, int flavor); + +/* temporary compatibility */ +int proc_setthread_saved_importance(thread_t thread, int importance); + +int proc_get_task_ruse_cpu(task_t task, uint32_t *policyp, uint8_t *percentagep, uint64_t *intervalp, uint64_t *deadlinep); +int proc_set_task_ruse_cpu(task_t task, uint32_t policy, uint8_t percentage, uint64_t interval, uint64_t deadline, int cpumon_entitled); +int proc_clear_task_ruse_cpu(task_t task, int cpumon_entitled); +thread_t task_findtid(task_t, uint64_t); +void set_thread_iotier_override(thread_t, int policy); + +#define TASK_RUSECPU_FLAGS_PROC_LIMIT 0x01 +#define TASK_RUSECPU_FLAGS_PERTHR_LIMIT 0x02 +#define TASK_RUSECPU_FLAGS_DEADLINE 0x04 +#define TASK_RUSECPU_FLAGS_FATAL_CPUMON 0x08 /* CPU usage monitor violations are fatal */ +#define TASK_RUSECPU_FLAGS_FATAL_WAKEUPSMON 0x10 /* wakeups monitor violations are fatal */ +#define TASK_RUSECPU_FLAGS_PHYS_FOOTPRINT_EXCEPTION 0x20 /* exceeding physical footprint generates EXC_RESOURCE */ /* BSD call back functions */ extern int proc_apply_resource_actions(void * p, int type, int action); extern int proc_restore_resource_actions(void * p, int type, int action); extern int task_restore_resource_actions(task_t task, int type); -extern void proc_apply_task_networkbg(void * bsd_info); -extern void proc_restore_task_networkbg(void * bsd_info); -extern void proc_set_task_networkbg(void * bsd_info, int setbg); -extern int task_clear_cpuusage(task_t task); - -#if CONFIG_EMBEDDED -#define TASK_APPSTATE_NONE 0 -#define TASK_APPSTATE_ACTIVE 1 -#define TASK_APPSTATE_BACKGROUND 2 -#define TASK_APPSTATE_NONUI 3 -#define TASK_APPSTATE_INACTIVE 4 - -extern int proc_lf_getappstate(task_t task); -extern int proc_lf_setappstate(task_t task, int state); -extern int proc_lf_pidbind(task_t curtask, uint64_t tid, task_t target_task, int bind); -extern void thead_remove_taskwatch(thread_t thread); -extern void task_removewatchers(task_t task); -#endif /* CONFIG_EMBEDDED */ +extern int task_clear_cpuusage(task_t task, int cpumon_entitled); + +extern kern_return_t task_wakeups_monitor_ctl(task_t task, uint32_t *rate_hz, int32_t *flags); +extern kern_return_t task_cpu_usage_monitor_ctl(task_t task, uint32_t *flags); + + +void task_importance_mark_donor(task_t task, boolean_t donating); + +#if IMPORTANCE_INHERITANCE +extern boolean_t task_is_importance_donor(task_t task); +extern boolean_t task_is_importance_receiver(task_t task); + +extern int task_importance_hold_internal_assertion(task_t target_task, uint32_t count); +extern int task_importance_drop_internal_assertion(task_t target_task, uint32_t count); + +extern int task_importance_hold_external_assertion(task_t target_task, uint32_t count); +extern int task_importance_drop_external_assertion(task_t target_task, uint32_t count); + +extern int task_importance_externalize_assertion(task_t target_task, uint32_t count, int sender_pid); +#endif /* IMPORTANCE_INHERITANCE */ + +extern void task_hold_multiple_assertion(task_t task, uint32_t count); +extern void task_add_importance_watchport(task_t task, int pid, mach_port_t port, int *boostp); + +extern boolean_t task_has_been_notified(task_t task, int pressurelevel); +extern boolean_t task_used_for_purging(task_t task, int pressurelevel); +extern void task_mark_has_been_notified(task_t task, int pressurelevel); +extern void task_mark_used_for_purging(task_t task, int pressurelevel); +extern void task_clear_has_been_notified(task_t task, int pressurelevel); +extern void task_clear_used_for_purging(task_t task); +extern int task_importance_estimate(task_t task); + +/* + * This should only be used for debugging. + * pid is stored in audit_token by set_security_token(). + */ +#define audit_token_pid_from_task(task) ((task)->audit_token.val[5]) + +/* End task_policy */ #endif /* XNU_KERNEL_PRIVATE */ @@ -674,9 +694,13 @@ extern boolean_t get_task_frozen(task_t); /* Convert from a task to a port */ extern ipc_port_t convert_task_to_port(task_t); - -/* Convert from a task name to a port */ extern ipc_port_t convert_task_name_to_port(task_name_t); +extern ipc_port_t convert_task_suspension_token_to_port(task_suspension_token_t task); + +/* Convert from a port (in this case, an SO right to a task's resume port) to a task. */ +extern task_suspension_token_t convert_port_to_task_suspension_token(ipc_port_t port); + +extern boolean_t task_suspension_notify(mach_msg_header_t *); #endif /* KERNEL_PRIVATE */ @@ -687,6 +711,9 @@ extern void task_deallocate( extern void task_name_deallocate( task_name_t task_name); + +extern void task_suspension_token_deallocate( + task_suspension_token_t token); __END_DECLS #endif /* _KERN_TASK_H_ */