/*
- * Copyright (c) 2000-2016 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2020 Apple Computer, Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#if CONFIG_TELEMETRY
#include <kern/telemetry.h>
#endif
+#if !defined(XNU_TARGET_OS_OSX)
+#include <kern/kalloc.h>
+#include <sys/errno.h>
+#endif /* !defined(XNU_TARGET_OS_OSX) */
#if IMPORTANCE_INHERITANCE
#include <ipc/ipc_importance.h>
-#if IMPORTANCE_DEBUG
+#if IMPORTANCE_TRACE
#include <mach/machine/sdt.h>
-#endif /* IMPORTANCE_DEBUG */
+#endif /* IMPORTANCE_TRACE */
#endif /* IMPORTANCE_INHERITACE */
#include <sys/kdebug.h>
static void proc_set_task_policy_locked(task_t task, int category, int flavor, int value, int value2);
static void task_policy_update_locked(task_t task, task_pend_token_t pend_token);
-static void task_policy_update_internal_locked(task_t task, boolean_t in_create, task_pend_token_t pend_token);
+static void task_policy_update_internal_locked(task_t task, bool in_create, task_pend_token_t pend_token);
/* For attributes that have two scalars as input/output */
static void proc_set_task_policy2(task_t task, int category, int flavor, int value1, int value2);
static void proc_get_task_policy2(task_t task, int category, int flavor, int *value1, int *value2);
-#if CONFIG_SCHED_SFI
-static boolean_t task_policy_update_coalition_focal_tasks(task_t task, int prev_role, int next_role);
-#endif
+static boolean_t task_policy_update_coalition_focal_tasks(task_t task, int prev_role, int next_role, task_pend_token_t pend_token);
static uint64_t task_requested_bitfield(task_t task);
static uint64_t task_effective_bitfield(task_t task);
#ifdef MACH_BSD
typedef struct proc * proc_t;
-int proc_pid(void *proc);
+int proc_pid(struct proc *proc);
extern int proc_selfpid(void);
extern char * proc_name_address(void *p);
extern char * proc_best_name(proc_t proc);
extern int proc_pidpathinfo_internal(proc_t p, uint64_t arg,
- char *buffer, uint32_t buffersize,
- int32_t *retval);
+ char *buffer, uint32_t buffersize,
+ int32_t *retval);
#endif /* MACH_BSD */
+#if CONFIG_TASKWATCH
+/* Taskwatch related helper functions */
+static void set_thread_appbg(thread_t thread, int setbg, int importance);
+static void add_taskwatch_locked(task_t task, task_watch_t * twp);
+static void remove_taskwatch_locked(task_t task, task_watch_t * twp);
+static void task_watch_lock(void);
+static void task_watch_unlock(void);
+static void apply_appstate_watchers(task_t task);
+
+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;
+
+typedef struct thread_watchlist {
+ thread_t thread; /* thread being worked on for taskwatch action */
+ int importance; /* importance to be restored if thread is being made active */
+} thread_watchlist_t;
+
+#endif /* CONFIG_TASKWATCH */
+
+extern int memorystatus_update_priority_for_appnap(proc_t p, boolean_t is_appnap);
/* Importance Inheritance related helper functions */
#endif /* IMPORTANCE_INHERITANCE */
-#if IMPORTANCE_DEBUG
-#define __impdebug_only
-#else
-#define __impdebug_only __unused
-#endif
+#if IMPORTANCE_TRACE
+#define __imptrace_only
+#else /* IMPORTANCE_TRACE */
+#define __imptrace_only __unused
+#endif /* !IMPORTANCE_TRACE */
#if IMPORTANCE_INHERITANCE
#define __imp_only
#define DEFAULT_CPUMON_INTERVAL (3 * 60)
uint8_t proc_max_cpumon_percentage;
-uint64_t proc_max_cpumon_interval;
+uint64_t proc_max_cpumon_interval;
kern_return_t
-qos_latency_policy_validate(task_latency_qos_t ltier) {
+qos_latency_policy_validate(task_latency_qos_t ltier)
+{
if ((ltier != LATENCY_QOS_TIER_UNSPECIFIED) &&
- ((ltier > LATENCY_QOS_TIER_5) || (ltier < LATENCY_QOS_TIER_0)))
+ ((ltier > LATENCY_QOS_TIER_5) || (ltier < LATENCY_QOS_TIER_0))) {
return KERN_INVALID_ARGUMENT;
+ }
return KERN_SUCCESS;
}
kern_return_t
-qos_throughput_policy_validate(task_throughput_qos_t ttier) {
+qos_throughput_policy_validate(task_throughput_qos_t ttier)
+{
if ((ttier != THROUGHPUT_QOS_TIER_UNSPECIFIED) &&
- ((ttier > THROUGHPUT_QOS_TIER_5) || (ttier < THROUGHPUT_QOS_TIER_0)))
+ ((ttier > THROUGHPUT_QOS_TIER_5) || (ttier < THROUGHPUT_QOS_TIER_0))) {
return KERN_INVALID_ARGUMENT;
+ }
return KERN_SUCCESS;
}
static kern_return_t
-task_qos_policy_validate(task_qos_policy_t qosinfo, mach_msg_type_number_t count) {
- if (count < TASK_QOS_POLICY_COUNT)
+task_qos_policy_validate(task_qos_policy_t qosinfo, mach_msg_type_number_t count)
+{
+ if (count < TASK_QOS_POLICY_COUNT) {
return KERN_INVALID_ARGUMENT;
+ }
task_latency_qos_t ltier = qosinfo->task_latency_qos_tier;
task_throughput_qos_t ttier = qosinfo->task_throughput_qos_tier;
kern_return_t kr = qos_latency_policy_validate(ltier);
- if (kr != KERN_SUCCESS)
+ if (kr != KERN_SUCCESS) {
return kr;
+ }
kr = qos_throughput_policy_validate(ttier);
}
uint32_t
-qos_extract(uint32_t qv) {
- return (qv & 0xFF);
+qos_extract(uint32_t qv)
+{
+ return qv & 0xFF;
}
uint32_t
-qos_latency_policy_package(uint32_t qv) {
+qos_latency_policy_package(uint32_t qv)
+{
return (qv == LATENCY_QOS_TIER_UNSPECIFIED) ? LATENCY_QOS_TIER_UNSPECIFIED : ((0xFF << 16) | qv);
}
uint32_t
-qos_throughput_policy_package(uint32_t qv) {
+qos_throughput_policy_package(uint32_t qv)
+{
return (qv == THROUGHPUT_QOS_TIER_UNSPECIFIED) ? THROUGHPUT_QOS_TIER_UNSPECIFIED : ((0xFE << 16) | qv);
}
+#define TASK_POLICY_SUPPRESSION_DISABLE 0x1
+#define TASK_POLICY_SUPPRESSION_IOTIER2 0x2
+#define TASK_POLICY_SUPPRESSION_NONDONOR 0x4
/* TEMPORARY boot-arg controlling task_policy suppression (App Nap) */
-static boolean_t task_policy_suppression_disable = FALSE;
+static boolean_t task_policy_suppression_flags = TASK_POLICY_SUPPRESSION_IOTIER2 |
+ TASK_POLICY_SUPPRESSION_NONDONOR;
kern_return_t
task_policy_set(
- task_t task,
- task_policy_flavor_t flavor,
- task_policy_t policy_info,
- mach_msg_type_number_t count)
+ task_t task,
+ task_policy_flavor_t flavor,
+ task_policy_t policy_info,
+ mach_msg_type_number_t count)
{
- kern_return_t result = KERN_SUCCESS;
+ kern_return_t result = KERN_SUCCESS;
- if (task == TASK_NULL || task == kernel_task)
- return (KERN_INVALID_ARGUMENT);
+ if (task == TASK_NULL || task == kernel_task) {
+ return KERN_INVALID_ARGUMENT;
+ }
switch (flavor) {
-
case TASK_CATEGORY_POLICY: {
task_category_policy_t info = (task_category_policy_t)policy_info;
- if (count < TASK_CATEGORY_POLICY_COUNT)
- return (KERN_INVALID_ARGUMENT);
+ if (count < TASK_CATEGORY_POLICY_COUNT) {
+ return KERN_INVALID_ARGUMENT;
+ }
+#if !defined(XNU_TARGET_OS_OSX)
+ /* On embedded, you can't modify your own role. */
+ if (current_task() == task) {
+ return KERN_INVALID_ARGUMENT;
+ }
+#endif
- switch(info->role) {
- case TASK_FOREGROUND_APPLICATION:
- case TASK_BACKGROUND_APPLICATION:
- case TASK_DEFAULT_APPLICATION:
+ switch (info->role) {
+ case TASK_FOREGROUND_APPLICATION:
+ case TASK_BACKGROUND_APPLICATION:
+ case TASK_DEFAULT_APPLICATION:
+ proc_set_task_policy(task,
+ TASK_POLICY_ATTRIBUTE, TASK_POLICY_ROLE,
+ info->role);
+ break;
+
+ case TASK_CONTROL_APPLICATION:
+ if (task != current_task() || task->sec_token.val[0] != 0) {
+ result = KERN_INVALID_ARGUMENT;
+ } else {
proc_set_task_policy(task,
- TASK_POLICY_ATTRIBUTE, TASK_POLICY_ROLE,
- info->role);
- break;
-
- case TASK_CONTROL_APPLICATION:
- if (task != current_task() || task->sec_token.val[0] != 0)
- result = KERN_INVALID_ARGUMENT;
- else
- proc_set_task_policy(task,
- TASK_POLICY_ATTRIBUTE, TASK_POLICY_ROLE,
- info->role);
- break;
-
- case TASK_GRAPHICS_SERVER:
- /* TODO: Restrict this role to FCFS <rdar://problem/12552788> */
- if (task != current_task() || task->sec_token.val[0] != 0)
- result = KERN_INVALID_ARGUMENT;
- else
- proc_set_task_policy(task,
- TASK_POLICY_ATTRIBUTE, TASK_POLICY_ROLE,
- info->role);
- break;
- default:
+ TASK_POLICY_ATTRIBUTE, TASK_POLICY_ROLE,
+ info->role);
+ }
+ break;
+
+ case TASK_GRAPHICS_SERVER:
+ /* TODO: Restrict this role to FCFS <rdar://problem/12552788> */
+ if (task != current_task() || task->sec_token.val[0] != 0) {
result = KERN_INVALID_ARGUMENT;
- break;
+ } else {
+ proc_set_task_policy(task,
+ TASK_POLICY_ATTRIBUTE, TASK_POLICY_ROLE,
+ info->role);
+ }
+ break;
+ default:
+ result = KERN_INVALID_ARGUMENT;
+ break;
} /* switch (info->role) */
break;
task_qos_policy_t qosinfo = (task_qos_policy_t)policy_info;
kern_return_t kr = task_qos_policy_validate(qosinfo, count);
- if (kr != KERN_SUCCESS)
+ if (kr != KERN_SUCCESS) {
return kr;
+ }
uint32_t lqos = qos_extract(qosinfo->task_latency_qos_tier);
uint32_t tqos = qos_extract(qosinfo->task_throughput_qos_tier);
proc_set_task_policy2(task, TASK_POLICY_ATTRIBUTE,
- flavor == TASK_BASE_QOS_POLICY ? TASK_POLICY_BASE_LATENCY_AND_THROUGHPUT_QOS : TASK_POLICY_OVERRIDE_LATENCY_AND_THROUGHPUT_QOS,
- lqos, tqos);
+ flavor == TASK_BASE_QOS_POLICY ? TASK_POLICY_BASE_LATENCY_AND_THROUGHPUT_QOS : TASK_POLICY_OVERRIDE_LATENCY_AND_THROUGHPUT_QOS,
+ lqos, tqos);
}
break;
task_qos_policy_t qosinfo = (task_qos_policy_t)policy_info;
kern_return_t kr = task_qos_policy_validate(qosinfo, count);
- if (kr != KERN_SUCCESS)
+ if (kr != KERN_SUCCESS) {
return kr;
+ }
uint32_t lqos = qos_extract(qosinfo->task_latency_qos_tier);
task_qos_policy_t qosinfo = (task_qos_policy_t)policy_info;
kern_return_t kr = task_qos_policy_validate(qosinfo, count);
- if (kr != KERN_SUCCESS)
+ if (kr != KERN_SUCCESS) {
return kr;
+ }
uint32_t tqos = qos_extract(qosinfo->task_throughput_qos_tier);
case TASK_SUPPRESSION_POLICY:
{
+#if !defined(XNU_TARGET_OS_OSX)
+ /*
+ * Suppression policy is not enabled for embedded
+ * because apps aren't marked as denap receivers
+ */
+ result = KERN_INVALID_ARGUMENT;
+ break;
+#else /* !defined(XNU_TARGET_OS_OSX) */
task_suppression_policy_t info = (task_suppression_policy_t)policy_info;
- if (count < TASK_SUPPRESSION_POLICY_COUNT)
- return (KERN_INVALID_ARGUMENT);
+ if (count < TASK_SUPPRESSION_POLICY_COUNT) {
+ return KERN_INVALID_ARGUMENT;
+ }
struct task_qos_policy qosinfo;
kern_return_t kr = task_qos_policy_validate(&qosinfo, TASK_QOS_POLICY_COUNT);
- if (kr != KERN_SUCCESS)
+ if (kr != KERN_SUCCESS) {
return kr;
+ }
/* TEMPORARY disablement of task suppression */
- if (task_policy_suppression_disable && info->active)
+ if (info->active &&
+ (task_policy_suppression_flags & TASK_POLICY_SUPPRESSION_DISABLE)) {
return KERN_SUCCESS;
+ }
struct task_pend_token pend_token = {};
task_lock(task);
KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE,
- (IMPORTANCE_CODE(IMP_TASK_SUPPRESSION, info->active)) | DBG_FUNC_START,
- proc_selfpid(), task_pid(task), trequested_0(task),
- trequested_1(task), 0);
+ (IMPORTANCE_CODE(IMP_TASK_SUPPRESSION, info->active)) | DBG_FUNC_START,
+ proc_selfpid(), task_pid(task), trequested_0(task),
+ trequested_1(task), 0);
task->requested_policy.trp_sup_active = (info->active) ? 1 : 0;
task->requested_policy.trp_sup_lowpri_cpu = (info->lowpri_cpu) ? 1 : 0;
task_policy_update_locked(task, &pend_token);
KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE,
- (IMPORTANCE_CODE(IMP_TASK_SUPPRESSION, info->active)) | DBG_FUNC_END,
- proc_selfpid(), task_pid(task), trequested_0(task),
- trequested_1(task), 0);
+ (IMPORTANCE_CODE(IMP_TASK_SUPPRESSION, info->active)) | DBG_FUNC_END,
+ proc_selfpid(), task_pid(task), trequested_0(task),
+ trequested_1(task), 0);
task_unlock(task);
break;
+#endif /* !defined(XNU_TARGET_OS_OSX) */
}
default:
break;
}
- return (result);
+ return result;
}
/* Sets BSD 'nice' value on the task */
kern_return_t
task_importance(
- task_t task,
- integer_t importance)
+ task_t task,
+ integer_t importance)
{
- if (task == TASK_NULL || task == kernel_task)
- return (KERN_INVALID_ARGUMENT);
+ if (task == TASK_NULL || task == kernel_task) {
+ return KERN_INVALID_ARGUMENT;
+ }
task_lock(task);
if (!task->active) {
task_unlock(task);
- return (KERN_TERMINATED);
+ return KERN_TERMINATED;
}
if (proc_get_effective_task_policy(task, TASK_POLICY_ROLE) >= TASK_CONTROL_APPLICATION) {
task_unlock(task);
- return (KERN_INVALID_ARGUMENT);
+ return KERN_INVALID_ARGUMENT;
}
task->importance = importance;
task_policy_update_complete_unlocked(task, &pend_token);
- return (KERN_SUCCESS);
+ return KERN_SUCCESS;
}
kern_return_t
task_policy_get(
- task_t task,
- task_policy_flavor_t flavor,
- task_policy_t policy_info,
- mach_msg_type_number_t *count,
- boolean_t *get_default)
+ task_t task,
+ task_policy_flavor_t flavor,
+ task_policy_t policy_info,
+ mach_msg_type_number_t *count,
+ boolean_t *get_default)
{
- if (task == TASK_NULL || task == kernel_task)
- return (KERN_INVALID_ARGUMENT);
+ if (task == TASK_NULL || task == kernel_task) {
+ return KERN_INVALID_ARGUMENT;
+ }
switch (flavor) {
-
case TASK_CATEGORY_POLICY:
{
- task_category_policy_t info = (task_category_policy_t)policy_info;
+ task_category_policy_t info = (task_category_policy_t)policy_info;
- if (*count < TASK_CATEGORY_POLICY_COUNT)
- return (KERN_INVALID_ARGUMENT);
+ if (*count < TASK_CATEGORY_POLICY_COUNT) {
+ return KERN_INVALID_ARGUMENT;
+ }
- if (*get_default)
+ if (*get_default) {
info->role = TASK_UNSPECIFIED;
- else
+ } else {
info->role = proc_get_task_policy(task, TASK_POLICY_ATTRIBUTE, TASK_POLICY_ROLE);
+ }
break;
}
{
task_qos_policy_t info = (task_qos_policy_t)policy_info;
- if (*count < TASK_QOS_POLICY_COUNT)
- return (KERN_INVALID_ARGUMENT);
+ if (*count < TASK_QOS_POLICY_COUNT) {
+ return KERN_INVALID_ARGUMENT;
+ }
if (*get_default) {
info->task_latency_qos_tier = LATENCY_QOS_TIER_UNSPECIFIED;
info->task_latency_qos_tier = qos_latency_policy_package(value1);
info->task_throughput_qos_tier = qos_throughput_policy_package(value2);
-
} else if (flavor == TASK_OVERRIDE_QOS_POLICY) {
int value1, value2;
{
task_policy_state_t info = (task_policy_state_t)policy_info;
- if (*count < TASK_POLICY_STATE_COUNT)
- return (KERN_INVALID_ARGUMENT);
+ if (*count < TASK_POLICY_STATE_COUNT) {
+ return KERN_INVALID_ARGUMENT;
+ }
/* Only root can get this info */
- if (current_task()->sec_token.val[0] != 0)
+ if (current_task()->sec_token.val[0] != 0) {
return KERN_PROTECTION_FAILURE;
+ }
if (*get_default) {
info->requested = 0;
info->flags |= (task_is_marked_importance_denap_receiver(task) ? TASK_DENAP_RECEIVER : 0);
info->flags |= (task_is_marked_importance_donor(task) ? TASK_IMP_DONOR : 0);
info->flags |= (task_is_marked_live_importance_donor(task) ? TASK_IMP_LIVE_DONOR : 0);
+ info->flags |= (get_task_pidsuspended(task) ? TASK_IS_PIDSUSPENDED : 0);
info->imp_transitions = task->task_imp_base->iit_transitions;
} else {
info->imp_assertcnt = 0;
{
task_suppression_policy_t info = (task_suppression_policy_t)policy_info;
- if (*count < TASK_SUPPRESSION_POLICY_COUNT)
- return (KERN_INVALID_ARGUMENT);
+ if (*count < TASK_SUPPRESSION_POLICY_COUNT) {
+ return KERN_INVALID_ARGUMENT;
+ }
task_lock(task);
}
default:
- return (KERN_INVALID_ARGUMENT);
+ return KERN_INVALID_ARGUMENT;
}
- return (KERN_SUCCESS);
+ return KERN_SUCCESS;
}
/*
}
KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE,
- (IMPORTANCE_CODE(IMP_UPDATE, (IMP_UPDATE_TASK_CREATE | TASK_POLICY_TASK))) | DBG_FUNC_START,
- task_pid(task), teffective_0(task),
- teffective_1(task), task->priority, 0);
+ (IMPORTANCE_CODE(IMP_UPDATE, (IMP_UPDATE_TASK_CREATE | TASK_POLICY_TASK))) | DBG_FUNC_START,
+ task_pid(task), teffective_0(task),
+ teffective_1(task), task->priority, 0);
- task_policy_update_internal_locked(task, TRUE, NULL);
+ task_policy_update_internal_locked(task, true, NULL);
KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE,
- (IMPORTANCE_CODE(IMP_UPDATE, (IMP_UPDATE_TASK_CREATE | TASK_POLICY_TASK))) | DBG_FUNC_END,
- task_pid(task), teffective_0(task),
- teffective_1(task), task->priority, 0);
+ (IMPORTANCE_CODE(IMP_UPDATE, (IMP_UPDATE_TASK_CREATE | TASK_POLICY_TASK))) | DBG_FUNC_END,
+ task_pid(task), teffective_0(task),
+ teffective_1(task), task->priority, 0);
task_importance_update_live_donor(task);
}
task_policy_update_locked(task_t task, task_pend_token_t pend_token)
{
KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE,
- (IMPORTANCE_CODE(IMP_UPDATE, TASK_POLICY_TASK) | DBG_FUNC_START),
- task_pid(task), teffective_0(task),
- teffective_1(task), task->priority, 0);
+ (IMPORTANCE_CODE(IMP_UPDATE, TASK_POLICY_TASK) | DBG_FUNC_START),
+ task_pid(task), teffective_0(task),
+ teffective_1(task), task->priority, 0);
- task_policy_update_internal_locked(task, FALSE, pend_token);
+ task_policy_update_internal_locked(task, false, pend_token);
KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE,
- (IMPORTANCE_CODE(IMP_UPDATE, TASK_POLICY_TASK)) | DBG_FUNC_END,
- task_pid(task), teffective_0(task),
- teffective_1(task), task->priority, 0);
+ (IMPORTANCE_CODE(IMP_UPDATE, TASK_POLICY_TASK)) | DBG_FUNC_END,
+ task_pid(task), teffective_0(task),
+ teffective_1(task), task->priority, 0);
}
/*
*/
static void
-task_policy_update_internal_locked(task_t task, boolean_t in_create, task_pend_token_t pend_token)
+task_policy_update_internal_locked(task_t task, bool in_create, task_pend_token_t pend_token)
{
/*
* Step 1:
/* Set task qos clamp and ceiling */
next.tep_qos_clamp = requested.trp_qos_clamp;
- if (requested.trp_apptype == TASK_APPTYPE_APP_DEFAULT ||
- requested.trp_apptype == TASK_APPTYPE_APP_TAL) {
-
+ if (requested.trp_apptype == TASK_APPTYPE_APP_DEFAULT) {
switch (next.tep_role) {
- case TASK_FOREGROUND_APPLICATION:
- /* Foreground apps get urgent scheduler priority */
- next.tep_qos_ui_is_urgent = 1;
- next.tep_qos_ceiling = THREAD_QOS_UNSPECIFIED;
- break;
-
- case TASK_BACKGROUND_APPLICATION:
- /* This is really 'non-focal but on-screen' */
- next.tep_qos_ceiling = THREAD_QOS_UNSPECIFIED;
- break;
-
- case TASK_DEFAULT_APPLICATION:
- /* This is 'may render UI but we don't know if it's focal/nonfocal' */
- next.tep_qos_ceiling = THREAD_QOS_UNSPECIFIED;
- break;
-
- case TASK_NONUI_APPLICATION:
- /* i.e. 'off-screen' */
- next.tep_qos_ceiling = THREAD_QOS_LEGACY;
- break;
-
- case TASK_CONTROL_APPLICATION:
- case TASK_GRAPHICS_SERVER:
- next.tep_qos_ui_is_urgent = 1;
- next.tep_qos_ceiling = THREAD_QOS_UNSPECIFIED;
- break;
-
- case TASK_THROTTLE_APPLICATION:
- /* i.e. 'TAL launch' */
- next.tep_qos_ceiling = THREAD_QOS_UTILITY;
- break;
-
- case TASK_UNSPECIFIED:
- default:
- /* Apps that don't have an application role get
- * USER_INTERACTIVE and USER_INITIATED squashed to LEGACY */
- next.tep_qos_ceiling = THREAD_QOS_LEGACY;
- break;
+ case TASK_FOREGROUND_APPLICATION:
+ /* Foreground apps get urgent scheduler priority */
+ next.tep_qos_ui_is_urgent = 1;
+ next.tep_qos_ceiling = THREAD_QOS_UNSPECIFIED;
+ break;
+
+ case TASK_BACKGROUND_APPLICATION:
+ /* This is really 'non-focal but on-screen' */
+ next.tep_qos_ceiling = THREAD_QOS_UNSPECIFIED;
+ break;
+
+ case TASK_DEFAULT_APPLICATION:
+ /* This is 'may render UI but we don't know if it's focal/nonfocal' */
+ next.tep_qos_ceiling = THREAD_QOS_UNSPECIFIED;
+ break;
+
+ case TASK_NONUI_APPLICATION:
+ /* i.e. 'off-screen' */
+ next.tep_qos_ceiling = THREAD_QOS_LEGACY;
+ break;
+
+ case TASK_CONTROL_APPLICATION:
+ case TASK_GRAPHICS_SERVER:
+ next.tep_qos_ui_is_urgent = 1;
+ next.tep_qos_ceiling = THREAD_QOS_UNSPECIFIED;
+ break;
+
+ case TASK_THROTTLE_APPLICATION:
+ /* i.e. 'TAL launch' */
+ next.tep_qos_ceiling = THREAD_QOS_UTILITY;
+ break;
+
+ case TASK_DARWINBG_APPLICATION:
+ /* i.e. 'DARWIN_BG throttled background application' */
+ next.tep_qos_ceiling = THREAD_QOS_BACKGROUND;
+ break;
+
+ case TASK_UNSPECIFIED:
+ default:
+ /* Apps that don't have an application role get
+ * USER_INTERACTIVE and USER_INITIATED squashed to LEGACY */
+ next.tep_qos_ceiling = THREAD_QOS_LEGACY;
+ break;
}
} else {
- /* Daemons get USER_INTERACTIVE squashed to USER_INITIATED */
+ /* Daemons and dext get USER_INTERACTIVE squashed to USER_INITIATED */
next.tep_qos_ceiling = THREAD_QOS_USER_INITIATED;
}
/* Calculate DARWIN_BG */
- boolean_t wants_darwinbg = FALSE;
- boolean_t wants_all_sockets_bg = FALSE; /* Do I want my existing sockets to be bg */
- boolean_t wants_watchersbg = FALSE; /* Do I want my pidbound threads to be bg */
+ bool wants_darwinbg = false;
+ bool wants_all_sockets_bg = false; /* Do I want my existing sockets to be bg */
+ bool wants_watchersbg = false; /* Do I want my pidbound threads to be bg */
+ bool adaptive_bg_only = false; /* This task is BG only because it's adaptive unboosted */
+
+ /* Adaptive daemons are DARWIN_BG unless boosted, and don't get network throttled. */
+ if (requested.trp_apptype == TASK_APPTYPE_DAEMON_ADAPTIVE &&
+ requested.trp_boosted == 0) {
+ wants_darwinbg = true;
+ adaptive_bg_only = true;
+ }
/*
* If DARWIN_BG has been requested at either level, it's engaged.
*
* Backgrounding due to apptype does.
*/
- if (requested.trp_int_darwinbg || requested.trp_ext_darwinbg)
- wants_watchersbg = wants_all_sockets_bg = wants_darwinbg = TRUE;
-
- /* Background TAL apps are throttled when TAL is enabled */
- if (requested.trp_apptype == TASK_APPTYPE_APP_TAL &&
- requested.trp_role == TASK_BACKGROUND_APPLICATION &&
- requested.trp_tal_enabled == 1) {
- next.tep_tal_engaged = 1;
+ if (requested.trp_int_darwinbg || requested.trp_ext_darwinbg ||
+ next.tep_role == TASK_DARWINBG_APPLICATION) {
+ wants_watchersbg = wants_all_sockets_bg = wants_darwinbg = true;
+ adaptive_bg_only = false;
}
- if ((requested.trp_apptype == TASK_APPTYPE_APP_DEFAULT ||
- requested.trp_apptype == TASK_APPTYPE_APP_TAL) &&
- requested.trp_role == TASK_THROTTLE_APPLICATION) {
+ /* Application launching in special Transparent App Lifecycle throttle mode */
+ if (requested.trp_apptype == TASK_APPTYPE_APP_DEFAULT &&
+ requested.trp_role == TASK_THROTTLE_APPLICATION) {
next.tep_tal_engaged = 1;
}
- /* Adaptive daemons are DARWIN_BG unless boosted, and don't get network throttled. */
- if (requested.trp_apptype == TASK_APPTYPE_DAEMON_ADAPTIVE &&
- requested.trp_boosted == 0)
- wants_darwinbg = TRUE;
-
/* Background daemons are always DARWIN_BG, no exceptions, and don't get network throttled. */
- if (requested.trp_apptype == TASK_APPTYPE_DAEMON_BACKGROUND)
- wants_darwinbg = TRUE;
+ if (requested.trp_apptype == TASK_APPTYPE_DAEMON_BACKGROUND) {
+ wants_darwinbg = true;
+ adaptive_bg_only = false;
+ }
- if (next.tep_qos_clamp == THREAD_QOS_BACKGROUND || next.tep_qos_clamp == THREAD_QOS_MAINTENANCE)
- wants_darwinbg = TRUE;
+ if (next.tep_qos_clamp == THREAD_QOS_BACKGROUND ||
+ next.tep_qos_clamp == THREAD_QOS_MAINTENANCE) {
+ wants_darwinbg = true;
+ adaptive_bg_only = false;
+ }
/* Calculate side effects of DARWIN_BG */
next.tep_lowpri_cpu = 1;
}
- if (wants_all_sockets_bg)
+ if (wants_all_sockets_bg) {
next.tep_all_sockets_bg = 1;
+ }
- if (wants_watchersbg)
+ if (wants_watchersbg) {
next.tep_watchers_bg = 1;
+ }
+
+ next.tep_adaptive_bg = adaptive_bg_only;
/* Calculate low CPU priority */
- boolean_t wants_lowpri_cpu = FALSE;
+ boolean_t wants_lowpri_cpu = false;
- if (wants_darwinbg)
- wants_lowpri_cpu = TRUE;
+ if (wants_darwinbg) {
+ wants_lowpri_cpu = true;
+ }
- if (next.tep_tal_engaged)
- wants_lowpri_cpu = TRUE;
+ if (next.tep_tal_engaged) {
+ wants_lowpri_cpu = true;
+ }
- if (requested.trp_sup_lowpri_cpu && requested.trp_boosted == 0)
- wants_lowpri_cpu = TRUE;
+ if (requested.trp_sup_lowpri_cpu && requested.trp_boosted == 0) {
+ wants_lowpri_cpu = true;
+ }
- if (wants_lowpri_cpu)
+ if (wants_lowpri_cpu) {
next.tep_lowpri_cpu = 1;
+ }
/* Calculate IO policy */
int iopol = THROTTLE_LEVEL_TIER0;
- if (wants_darwinbg)
+ if (wants_darwinbg) {
iopol = MAX(iopol, requested.trp_bg_iotier);
+ }
- if (requested.trp_apptype == TASK_APPTYPE_DAEMON_STANDARD)
+ if (requested.trp_apptype == TASK_APPTYPE_DAEMON_STANDARD) {
iopol = MAX(iopol, proc_standard_daemon_tier);
+ }
- if (requested.trp_sup_disk && requested.trp_boosted == 0)
+ if (requested.trp_sup_disk && requested.trp_boosted == 0) {
iopol = MAX(iopol, proc_suppressed_disk_tier);
+ }
- if (next.tep_tal_engaged)
+ if (next.tep_tal_engaged) {
iopol = MAX(iopol, proc_tal_disk_tier);
+ }
- if (next.tep_qos_clamp != THREAD_QOS_UNSPECIFIED)
+ if (next.tep_qos_clamp != THREAD_QOS_UNSPECIFIED) {
iopol = MAX(iopol, thread_qos_policy_params.qos_iotier[next.tep_qos_clamp]);
+ }
iopol = MAX(iopol, requested.trp_int_iotier);
iopol = MAX(iopol, requested.trp_ext_iotier);
/* Calculate Passive IO policy */
- if (requested.trp_ext_iopassive || requested.trp_int_iopassive)
+ if (requested.trp_ext_iopassive || requested.trp_int_iopassive) {
next.tep_io_passive = 1;
+ }
/* Calculate suppression-active flag */
- if (requested.trp_sup_active && requested.trp_boosted == 0)
+ boolean_t appnap_transition = false;
+
+ if (requested.trp_sup_active && requested.trp_boosted == 0) {
next.tep_sup_active = 1;
+ }
+
+ if (task->effective_policy.tep_sup_active != next.tep_sup_active) {
+ appnap_transition = true;
+ }
/* Calculate timer QOS */
int latency_qos = requested.trp_base_latency_qos;
- if (requested.trp_sup_timer && requested.trp_boosted == 0)
+ if (requested.trp_sup_timer && requested.trp_boosted == 0) {
latency_qos = requested.trp_sup_timer;
+ }
- if (next.tep_qos_clamp != THREAD_QOS_UNSPECIFIED)
+ if (next.tep_qos_clamp != THREAD_QOS_UNSPECIFIED) {
latency_qos = MAX(latency_qos, (int)thread_qos_policy_params.qos_latency_qos[next.tep_qos_clamp]);
+ }
- if (requested.trp_over_latency_qos != 0)
+ if (requested.trp_over_latency_qos != 0) {
latency_qos = requested.trp_over_latency_qos;
+ }
/* Treat the windowserver special */
- if (requested.trp_role == TASK_GRAPHICS_SERVER)
+ if (requested.trp_role == TASK_GRAPHICS_SERVER) {
latency_qos = proc_graphics_timer_qos;
+ }
next.tep_latency_qos = latency_qos;
/* Calculate throughput QOS */
int through_qos = requested.trp_base_through_qos;
- if (requested.trp_sup_throughput && requested.trp_boosted == 0)
+ if (requested.trp_sup_throughput && requested.trp_boosted == 0) {
through_qos = requested.trp_sup_throughput;
+ }
- if (next.tep_qos_clamp != THREAD_QOS_UNSPECIFIED)
+ if (next.tep_qos_clamp != THREAD_QOS_UNSPECIFIED) {
through_qos = MAX(through_qos, (int)thread_qos_policy_params.qos_through_qos[next.tep_qos_clamp]);
+ }
- if (requested.trp_over_through_qos != 0)
+ if (requested.trp_over_through_qos != 0) {
through_qos = requested.trp_over_through_qos;
+ }
next.tep_through_qos = through_qos;
/* Calculate suppressed CPU priority */
- if (requested.trp_sup_cpu && requested.trp_boosted == 0)
+ if (requested.trp_sup_cpu && requested.trp_boosted == 0) {
next.tep_suppressed_cpu = 1;
+ }
/*
* Calculate background sockets
* Don't take into account boosting to limit transition frequency.
*/
- if (requested.trp_sup_bg_sockets){
+ if (requested.trp_sup_bg_sockets) {
next.tep_all_sockets_bg = 1;
next.tep_new_sockets_bg = 1;
}
/* Calculate 'live donor' status for live importance */
switch (requested.trp_apptype) {
- case TASK_APPTYPE_APP_TAL:
- case TASK_APPTYPE_APP_DEFAULT:
- if (requested.trp_ext_darwinbg == 0)
- next.tep_live_donor = 1;
- else
- next.tep_live_donor = 0;
- break;
-
- case TASK_APPTYPE_DAEMON_INTERACTIVE:
- case TASK_APPTYPE_DAEMON_STANDARD:
- case TASK_APPTYPE_DAEMON_ADAPTIVE:
- case TASK_APPTYPE_DAEMON_BACKGROUND:
- default:
+ case TASK_APPTYPE_APP_TAL:
+ case TASK_APPTYPE_APP_DEFAULT:
+ if (requested.trp_ext_darwinbg == 1 ||
+ (next.tep_sup_active == 1 &&
+ (task_policy_suppression_flags & TASK_POLICY_SUPPRESSION_NONDONOR)) ||
+ next.tep_role == TASK_DARWINBG_APPLICATION) {
next.tep_live_donor = 0;
- break;
+ } else {
+ next.tep_live_donor = 1;
+ }
+ break;
+
+ case TASK_APPTYPE_DAEMON_INTERACTIVE:
+ case TASK_APPTYPE_DAEMON_STANDARD:
+ case TASK_APPTYPE_DAEMON_ADAPTIVE:
+ case TASK_APPTYPE_DAEMON_BACKGROUND:
+ case TASK_APPTYPE_DRIVER:
+ default:
+ next.tep_live_donor = 0;
+ break;
}
if (requested.trp_terminated) {
task->effective_policy = next;
/* Don't do anything further to a half-formed task */
- if (in_create)
+ if (in_create) {
return;
+ }
- if (task == kernel_task)
+ if (task == kernel_task) {
panic("Attempting to set task policy on kernel_task");
+ }
/*
* Step 4:
* Pend updates that can't be done while holding the task lock
*/
- if (prev.tep_all_sockets_bg != next.tep_all_sockets_bg)
+ if (prev.tep_all_sockets_bg != next.tep_all_sockets_bg) {
pend_token->tpt_update_sockets = 1;
+ }
/* Only re-scan the timer list if the qos level is getting less strong */
- if (prev.tep_latency_qos > next.tep_latency_qos)
+ if (prev.tep_latency_qos > next.tep_latency_qos) {
pend_token->tpt_update_timers = 1;
+ }
+#if CONFIG_TASKWATCH
+ if (prev.tep_watchers_bg != next.tep_watchers_bg) {
+ pend_token->tpt_update_watchers = 1;
+ }
+#endif /* CONFIG_TASKWATCH */
- if (prev.tep_live_donor != next.tep_live_donor)
+ if (prev.tep_live_donor != next.tep_live_donor) {
pend_token->tpt_update_live_donor = 1;
+ }
/*
* Step 5:
* Update other subsystems as necessary if something has changed
*/
- boolean_t update_threads = FALSE, update_sfi = FALSE;
+ bool update_threads = false, update_sfi = false;
/*
* Check for the attributes that thread_policy_update_internal_locked() consults,
* and trigger thread policy re-evaluation.
*/
- if (prev.tep_io_tier != next.tep_io_tier ||
- prev.tep_bg_iotier != next.tep_bg_iotier ||
- prev.tep_io_passive != next.tep_io_passive ||
- prev.tep_darwinbg != next.tep_darwinbg ||
- prev.tep_qos_clamp != next.tep_qos_clamp ||
- prev.tep_qos_ceiling != next.tep_qos_ceiling ||
- prev.tep_qos_ui_is_urgent != next.tep_qos_ui_is_urgent ||
- prev.tep_latency_qos != next.tep_latency_qos ||
- prev.tep_through_qos != next.tep_through_qos ||
- prev.tep_lowpri_cpu != next.tep_lowpri_cpu ||
- prev.tep_new_sockets_bg != next.tep_new_sockets_bg ||
- prev.tep_terminated != next.tep_terminated )
- update_threads = TRUE;
+ if (prev.tep_io_tier != next.tep_io_tier ||
+ prev.tep_bg_iotier != next.tep_bg_iotier ||
+ prev.tep_io_passive != next.tep_io_passive ||
+ prev.tep_darwinbg != next.tep_darwinbg ||
+ prev.tep_qos_clamp != next.tep_qos_clamp ||
+ prev.tep_qos_ceiling != next.tep_qos_ceiling ||
+ prev.tep_qos_ui_is_urgent != next.tep_qos_ui_is_urgent ||
+ prev.tep_latency_qos != next.tep_latency_qos ||
+ prev.tep_through_qos != next.tep_through_qos ||
+ prev.tep_lowpri_cpu != next.tep_lowpri_cpu ||
+ prev.tep_new_sockets_bg != next.tep_new_sockets_bg ||
+ prev.tep_terminated != next.tep_terminated ||
+ prev.tep_adaptive_bg != next.tep_adaptive_bg) {
+ update_threads = true;
+ }
/*
* Check for the attributes that sfi_thread_classify() consults,
* and trigger SFI re-evaluation.
*/
if (prev.tep_latency_qos != next.tep_latency_qos ||
- prev.tep_role != next.tep_role ||
- prev.tep_sfi_managed != next.tep_sfi_managed )
- update_sfi = TRUE;
+ prev.tep_role != next.tep_role ||
+ prev.tep_sfi_managed != next.tep_sfi_managed) {
+ update_sfi = true;
+ }
-#if CONFIG_SCHED_SFI
/* Reflect task role transitions into the coalition role counters */
if (prev.tep_role != next.tep_role) {
- if (task_policy_update_coalition_focal_tasks(task, prev.tep_role, next.tep_role)) {
- update_sfi = TRUE;
- pend_token->tpt_update_coal_sfi = 1;
+ if (task_policy_update_coalition_focal_tasks(task, prev.tep_role, next.tep_role, pend_token)) {
+ update_sfi = true;
}
}
-#endif /* !CONFIG_SCHED_SFI */
- boolean_t update_priority = FALSE;
+ bool update_priority = false;
- int priority = BASEPRI_DEFAULT;
- int max_priority = MAXPRI_USER;
+ int16_t priority = BASEPRI_DEFAULT;
+ int16_t max_priority = MAXPRI_USER;
if (next.tep_lowpri_cpu) {
priority = MAXPRI_THROTTLE;
max_priority = MAXPRI_SUPPRESSED;
} else {
switch (next.tep_role) {
- case TASK_CONTROL_APPLICATION:
- priority = BASEPRI_CONTROL;
- break;
- case TASK_GRAPHICS_SERVER:
- priority = BASEPRI_GRAPHICS;
- max_priority = MAXPRI_RESERVED;
- break;
- default:
- break;
+ case TASK_CONTROL_APPLICATION:
+ priority = BASEPRI_CONTROL;
+ break;
+ case TASK_GRAPHICS_SERVER:
+ priority = BASEPRI_GRAPHICS;
+ max_priority = MAXPRI_RESERVED;
+ break;
+ default:
+ break;
}
/* factor in 'nice' value */
priority += task->importance;
if (task->effective_policy.tep_qos_clamp != THREAD_QOS_UNSPECIFIED) {
- int qos_clamp_priority = thread_qos_policy_params.qos_pri[task->effective_policy.tep_qos_clamp];
+ int16_t qos_clamp_priority = thread_qos_policy_params.qos_pri[task->effective_policy.tep_qos_clamp];
priority = MIN(priority, qos_clamp_priority);
max_priority = MIN(max_priority, qos_clamp_priority);
}
- if (priority > max_priority)
+ if (priority > max_priority) {
priority = max_priority;
- else if (priority < MINPRI)
+ } else if (priority < MINPRI) {
priority = MINPRI;
+ }
}
assert(priority <= max_priority);
/* avoid extra work if priority isn't changing */
- if (priority != task->priority ||
- max_priority != task->max_priority ) {
+ if (priority != task->priority ||
+ max_priority != task->max_priority) {
/* update the scheduling priority for the task */
task->max_priority = max_priority;
task->priority = priority;
- update_priority = TRUE;
+ update_priority = true;
}
/* Loop over the threads in the task:
queue_iterate(&task->threads, thread, thread_t, task_threads) {
struct task_pend_token thread_pend_token = {};
- if (update_sfi)
+ if (update_sfi) {
thread_pend_token.tpt_update_thread_sfi = 1;
+ }
- if (update_priority || update_threads)
+ if (update_priority || update_threads) {
thread_policy_update_tasklocked(thread,
- task->priority, task->max_priority,
- &thread_pend_token);
+ task->priority, task->max_priority,
+ &thread_pend_token);
+ }
assert(!thread_pend_token.tpt_update_sockets);
thread_policy_update_complete_unlocked(thread, &thread_pend_token);
}
}
+
+ /*
+ * Use the app-nap transitions to influence the
+ * transition of the process within the jetsam band
+ * [and optionally its live-donor status]
+ * On macOS only.
+ */
+ if (appnap_transition) {
+ if (task->effective_policy.tep_sup_active == 1) {
+ memorystatus_update_priority_for_appnap(((proc_t) task->bsd_info), TRUE);
+ } else {
+ memorystatus_update_priority_for_appnap(((proc_t) task->bsd_info), FALSE);
+ }
+ }
}
-#if CONFIG_SCHED_SFI
/*
* Yet another layering violation. We reach out and bang on the coalition directly.
*/
static boolean_t
-task_policy_update_coalition_focal_tasks(task_t task,
- int prev_role,
- int next_role)
+task_policy_update_coalition_focal_tasks(task_t task,
+ int prev_role,
+ int next_role,
+ task_pend_token_t pend_token)
{
boolean_t sfi_transition = FALSE;
+ uint32_t new_count = 0;
/* task moving into/out-of the foreground */
if (prev_role != TASK_FOREGROUND_APPLICATION && next_role == TASK_FOREGROUND_APPLICATION) {
- if (task_coalition_adjust_focal_count(task, 1) == 1)
+ if (task_coalition_adjust_focal_count(task, 1, &new_count) && (new_count == 1)) {
sfi_transition = TRUE;
+ pend_token->tpt_update_tg_ui_flag = TRUE;
+ }
} else if (prev_role == TASK_FOREGROUND_APPLICATION && next_role != TASK_FOREGROUND_APPLICATION) {
- if (task_coalition_adjust_focal_count(task, -1) == 0)
+ if (task_coalition_adjust_focal_count(task, -1, &new_count) && (new_count == 0)) {
sfi_transition = TRUE;
+ pend_token->tpt_update_tg_ui_flag = TRUE;
+ }
}
/* task moving into/out-of background */
if (prev_role != TASK_BACKGROUND_APPLICATION && next_role == TASK_BACKGROUND_APPLICATION) {
- if (task_coalition_adjust_nonfocal_count(task, 1) == 1)
+ if (task_coalition_adjust_nonfocal_count(task, 1, &new_count) && (new_count == 1)) {
sfi_transition = TRUE;
+ }
} else if (prev_role == TASK_BACKGROUND_APPLICATION && next_role != TASK_BACKGROUND_APPLICATION) {
- if (task_coalition_adjust_nonfocal_count(task, -1) == 0)
+ if (task_coalition_adjust_nonfocal_count(task, -1, &new_count) && (new_count == 0)) {
sfi_transition = TRUE;
+ }
}
+ if (sfi_transition) {
+ pend_token->tpt_update_coal_sfi = 1;
+ }
return sfi_transition;
}
+#if CONFIG_SCHED_SFI
+
/* coalition object is locked */
static void
task_sfi_reevaluate_cb(coalition_t coal, void *ctx, task_t task)
(void)coal;
/* skip the task we're re-evaluating on behalf of: it's already updated */
- if (task == (task_t)ctx)
+ if (task == (task_t)ctx) {
return;
+ }
task_lock(task);
task_policy_update_complete_unlocked(task_t task, task_pend_token_t pend_token)
{
#ifdef MACH_BSD
- if (pend_token->tpt_update_sockets)
+ if (pend_token->tpt_update_sockets) {
proc_apply_task_networkbg(task->bsd_info, THREAD_NULL);
+ }
#endif /* MACH_BSD */
/* The timer throttle has been removed or reduced, we need to look for expired timers and fire them */
- if (pend_token->tpt_update_timers)
+ if (pend_token->tpt_update_timers) {
ml_timer_evaluate();
+ }
+#if CONFIG_TASKWATCH
+ if (pend_token->tpt_update_watchers) {
+ apply_appstate_watchers(task);
+ }
+#endif /* CONFIG_TASKWATCH */
- if (pend_token->tpt_update_live_donor)
+ if (pend_token->tpt_update_live_donor) {
task_importance_update_live_donor(task);
+ }
#if CONFIG_SCHED_SFI
/* use the resource coalition for SFI re-evaluation */
- if (pend_token->tpt_update_coal_sfi)
+ if (pend_token->tpt_update_coal_sfi) {
coalition_for_each_task(task->coalition[COALITION_TYPE_RESOURCE],
- (void *)task, task_sfi_reevaluate_cb);
+ (void *)task, task_sfi_reevaluate_cb);
+ }
#endif /* CONFIG_SCHED_SFI */
+
+#if CONFIG_THREAD_GROUPS
+ if (pend_token->tpt_update_tg_ui_flag) {
+ task_coalition_thread_group_focal_update(task);
+ }
+#endif /* CONFIG_THREAD_GROUPS */
}
/*
*/
void
proc_set_task_policy(task_t task,
- int category,
- int flavor,
- int value)
+ int category,
+ int flavor,
+ int value)
{
struct task_pend_token pend_token = {};
task_lock(task);
KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE,
- (IMPORTANCE_CODE(flavor, (category | TASK_POLICY_TASK))) | DBG_FUNC_START,
- task_pid(task), trequested_0(task),
- trequested_1(task), value, 0);
+ (IMPORTANCE_CODE(flavor, (category | TASK_POLICY_TASK))) | DBG_FUNC_START,
+ task_pid(task), trequested_0(task),
+ trequested_1(task), value, 0);
proc_set_task_policy_locked(task, category, flavor, value, 0);
KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE,
- (IMPORTANCE_CODE(flavor, (category | TASK_POLICY_TASK))) | DBG_FUNC_END,
- task_pid(task), trequested_0(task),
- trequested_1(task), tpending(&pend_token), 0);
+ (IMPORTANCE_CODE(flavor, (category | TASK_POLICY_TASK))) | DBG_FUNC_END,
+ task_pid(task), trequested_0(task),
+ trequested_1(task), tpending(&pend_token), 0);
task_unlock(task);
*/
void
proc_set_task_policy2(task_t task,
- int category,
- int flavor,
- int value,
- int value2)
+ int category,
+ int flavor,
+ int value,
+ int value2)
{
struct task_pend_token pend_token = {};
task_lock(task);
KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE,
- (IMPORTANCE_CODE(flavor, (category | TASK_POLICY_TASK))) | DBG_FUNC_START,
- task_pid(task), trequested_0(task),
- trequested_1(task), value, 0);
+ (IMPORTANCE_CODE(flavor, (category | TASK_POLICY_TASK))) | DBG_FUNC_START,
+ task_pid(task), trequested_0(task),
+ trequested_1(task), value, 0);
proc_set_task_policy_locked(task, category, flavor, value, value2);
task_policy_update_locked(task, &pend_token);
KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE,
- (IMPORTANCE_CODE(flavor, (category | TASK_POLICY_TASK))) | DBG_FUNC_END,
- task_pid(task), trequested_0(task),
- trequested_1(task), tpending(&pend_token), 0);
+ (IMPORTANCE_CODE(flavor, (category | TASK_POLICY_TASK))) | DBG_FUNC_END,
+ task_pid(task), trequested_0(task),
+ trequested_1(task), tpending(&pend_token), 0);
task_unlock(task);
*/
static void
proc_set_task_policy_locked(task_t task,
- int category,
- int flavor,
- int value,
- int value2)
+ int category,
+ int flavor,
+ int value,
+ int value2)
{
int tier, passive;
struct task_requested_policy requested = task->requested_policy;
switch (flavor) {
-
/* Category: EXTERNAL and INTERNAL */
- case TASK_POLICY_DARWIN_BG:
- if (category == TASK_POLICY_EXTERNAL)
- requested.trp_ext_darwinbg = value;
- else
- requested.trp_int_darwinbg = value;
- break;
+ case TASK_POLICY_DARWIN_BG:
+ if (category == TASK_POLICY_EXTERNAL) {
+ requested.trp_ext_darwinbg = value;
+ } else {
+ requested.trp_int_darwinbg = value;
+ }
+ break;
- case TASK_POLICY_IOPOL:
- proc_iopol_to_tier(value, &tier, &passive);
- if (category == TASK_POLICY_EXTERNAL) {
- requested.trp_ext_iotier = tier;
- requested.trp_ext_iopassive = passive;
- } else {
- requested.trp_int_iotier = tier;
- requested.trp_int_iopassive = passive;
- }
- break;
+ case TASK_POLICY_IOPOL:
+ proc_iopol_to_tier(value, &tier, &passive);
+ if (category == TASK_POLICY_EXTERNAL) {
+ requested.trp_ext_iotier = tier;
+ requested.trp_ext_iopassive = passive;
+ } else {
+ requested.trp_int_iotier = tier;
+ requested.trp_int_iopassive = passive;
+ }
+ break;
- case TASK_POLICY_IO:
- if (category == TASK_POLICY_EXTERNAL)
- requested.trp_ext_iotier = value;
- else
- requested.trp_int_iotier = value;
- break;
+ case TASK_POLICY_IO:
+ if (category == TASK_POLICY_EXTERNAL) {
+ requested.trp_ext_iotier = value;
+ } else {
+ requested.trp_int_iotier = value;
+ }
+ break;
- case TASK_POLICY_PASSIVE_IO:
- if (category == TASK_POLICY_EXTERNAL)
- requested.trp_ext_iopassive = value;
- else
- requested.trp_int_iopassive = value;
- break;
+ case TASK_POLICY_PASSIVE_IO:
+ if (category == TASK_POLICY_EXTERNAL) {
+ requested.trp_ext_iopassive = value;
+ } else {
+ requested.trp_int_iopassive = value;
+ }
+ break;
/* Category: INTERNAL */
- case TASK_POLICY_DARWIN_BG_IOPOL:
- assert(category == TASK_POLICY_INTERNAL);
- proc_iopol_to_tier(value, &tier, &passive);
- requested.trp_bg_iotier = tier;
- break;
+ case TASK_POLICY_DARWIN_BG_IOPOL:
+ assert(category == TASK_POLICY_INTERNAL);
+ proc_iopol_to_tier(value, &tier, &passive);
+ requested.trp_bg_iotier = tier;
+ break;
/* Category: ATTRIBUTE */
- case TASK_POLICY_TAL:
- assert(category == TASK_POLICY_ATTRIBUTE);
- requested.trp_tal_enabled = value;
- break;
-
- case TASK_POLICY_BOOST:
- assert(category == TASK_POLICY_ATTRIBUTE);
- requested.trp_boosted = value;
- break;
+ case TASK_POLICY_BOOST:
+ assert(category == TASK_POLICY_ATTRIBUTE);
+ requested.trp_boosted = value;
+ break;
- case TASK_POLICY_ROLE:
- assert(category == TASK_POLICY_ATTRIBUTE);
- requested.trp_role = value;
- break;
+ case TASK_POLICY_ROLE:
+ assert(category == TASK_POLICY_ATTRIBUTE);
+ requested.trp_role = value;
+ break;
- case TASK_POLICY_TERMINATED:
- assert(category == TASK_POLICY_ATTRIBUTE);
- requested.trp_terminated = value;
- break;
+ case TASK_POLICY_TERMINATED:
+ assert(category == TASK_POLICY_ATTRIBUTE);
+ requested.trp_terminated = value;
+ break;
- case TASK_BASE_LATENCY_QOS_POLICY:
- assert(category == TASK_POLICY_ATTRIBUTE);
- requested.trp_base_latency_qos = value;
- break;
+ case TASK_BASE_LATENCY_QOS_POLICY:
+ assert(category == TASK_POLICY_ATTRIBUTE);
+ requested.trp_base_latency_qos = value;
+ break;
- case TASK_BASE_THROUGHPUT_QOS_POLICY:
- assert(category == TASK_POLICY_ATTRIBUTE);
- requested.trp_base_through_qos = value;
- break;
+ case TASK_BASE_THROUGHPUT_QOS_POLICY:
+ assert(category == TASK_POLICY_ATTRIBUTE);
+ requested.trp_base_through_qos = value;
+ break;
- case TASK_POLICY_SFI_MANAGED:
- assert(category == TASK_POLICY_ATTRIBUTE);
- requested.trp_sfi_managed = value;
- break;
+ case TASK_POLICY_SFI_MANAGED:
+ assert(category == TASK_POLICY_ATTRIBUTE);
+ requested.trp_sfi_managed = value;
+ break;
- case TASK_POLICY_BASE_LATENCY_AND_THROUGHPUT_QOS:
- assert(category == TASK_POLICY_ATTRIBUTE);
- requested.trp_base_latency_qos = value;
- requested.trp_base_through_qos = value2;
- break;
+ case TASK_POLICY_BASE_LATENCY_AND_THROUGHPUT_QOS:
+ assert(category == TASK_POLICY_ATTRIBUTE);
+ requested.trp_base_latency_qos = value;
+ requested.trp_base_through_qos = value2;
+ break;
- case TASK_POLICY_OVERRIDE_LATENCY_AND_THROUGHPUT_QOS:
- assert(category == TASK_POLICY_ATTRIBUTE);
- requested.trp_over_latency_qos = value;
- requested.trp_over_through_qos = value2;
- break;
+ case TASK_POLICY_OVERRIDE_LATENCY_AND_THROUGHPUT_QOS:
+ assert(category == TASK_POLICY_ATTRIBUTE);
+ requested.trp_over_latency_qos = value;
+ requested.trp_over_through_qos = value2;
+ break;
- default:
- panic("unknown task policy: %d %d %d %d", category, flavor, value, value2);
- break;
+ default:
+ panic("unknown task policy: %d %d %d %d", category, flavor, value, value2);
+ break;
}
task->requested_policy = requested;
*/
int
proc_get_task_policy(task_t task,
- int category,
- int flavor)
+ int category,
+ int flavor)
{
int value = 0;
struct task_requested_policy requested = task->requested_policy;
switch (flavor) {
- case TASK_POLICY_DARWIN_BG:
- if (category == TASK_POLICY_EXTERNAL)
- value = requested.trp_ext_darwinbg;
- else
- value = requested.trp_int_darwinbg;
- break;
- case TASK_POLICY_IOPOL:
- if (category == TASK_POLICY_EXTERNAL)
- value = proc_tier_to_iopol(requested.trp_ext_iotier,
- requested.trp_ext_iopassive);
- else
- value = proc_tier_to_iopol(requested.trp_int_iotier,
- requested.trp_int_iopassive);
- break;
- case TASK_POLICY_IO:
- if (category == TASK_POLICY_EXTERNAL)
- value = requested.trp_ext_iotier;
- else
- value = requested.trp_int_iotier;
- break;
- case TASK_POLICY_PASSIVE_IO:
- if (category == TASK_POLICY_EXTERNAL)
- value = requested.trp_ext_iopassive;
- else
- value = requested.trp_int_iopassive;
- break;
- case TASK_POLICY_DARWIN_BG_IOPOL:
- assert(category == TASK_POLICY_ATTRIBUTE);
- value = proc_tier_to_iopol(requested.trp_bg_iotier, 0);
- break;
- case TASK_POLICY_ROLE:
- assert(category == TASK_POLICY_ATTRIBUTE);
- value = requested.trp_role;
- break;
- case TASK_POLICY_SFI_MANAGED:
- assert(category == TASK_POLICY_ATTRIBUTE);
- value = requested.trp_sfi_managed;
- break;
- default:
- panic("unknown policy_flavor %d", flavor);
- break;
+ case TASK_POLICY_DARWIN_BG:
+ if (category == TASK_POLICY_EXTERNAL) {
+ value = requested.trp_ext_darwinbg;
+ } else {
+ value = requested.trp_int_darwinbg;
+ }
+ break;
+ case TASK_POLICY_IOPOL:
+ if (category == TASK_POLICY_EXTERNAL) {
+ value = proc_tier_to_iopol(requested.trp_ext_iotier,
+ requested.trp_ext_iopassive);
+ } else {
+ value = proc_tier_to_iopol(requested.trp_int_iotier,
+ requested.trp_int_iopassive);
+ }
+ break;
+ case TASK_POLICY_IO:
+ if (category == TASK_POLICY_EXTERNAL) {
+ value = requested.trp_ext_iotier;
+ } else {
+ value = requested.trp_int_iotier;
+ }
+ break;
+ case TASK_POLICY_PASSIVE_IO:
+ if (category == TASK_POLICY_EXTERNAL) {
+ value = requested.trp_ext_iopassive;
+ } else {
+ value = requested.trp_int_iopassive;
+ }
+ break;
+ case TASK_POLICY_DARWIN_BG_IOPOL:
+ assert(category == TASK_POLICY_INTERNAL);
+ value = proc_tier_to_iopol(requested.trp_bg_iotier, 0);
+ break;
+ case TASK_POLICY_ROLE:
+ assert(category == TASK_POLICY_ATTRIBUTE);
+ value = requested.trp_role;
+ break;
+ case TASK_POLICY_SFI_MANAGED:
+ assert(category == TASK_POLICY_ATTRIBUTE);
+ value = requested.trp_sfi_managed;
+ break;
+ default:
+ panic("unknown policy_flavor %d", flavor);
+ break;
}
task_unlock(task);
*/
void
proc_get_task_policy2(task_t task,
- __assert_only int category,
- int flavor,
- int *value1,
- int *value2)
+ __assert_only int category,
+ int flavor,
+ int *value1,
+ int *value2)
{
task_lock(task);
struct task_requested_policy requested = task->requested_policy;
switch (flavor) {
- case TASK_POLICY_BASE_LATENCY_AND_THROUGHPUT_QOS:
- assert(category == TASK_POLICY_ATTRIBUTE);
- *value1 = requested.trp_base_latency_qos;
- *value2 = requested.trp_base_through_qos;
- break;
+ case TASK_POLICY_BASE_LATENCY_AND_THROUGHPUT_QOS:
+ assert(category == TASK_POLICY_ATTRIBUTE);
+ *value1 = requested.trp_base_latency_qos;
+ *value2 = requested.trp_base_through_qos;
+ break;
- case TASK_POLICY_OVERRIDE_LATENCY_AND_THROUGHPUT_QOS:
- assert(category == TASK_POLICY_ATTRIBUTE);
- *value1 = requested.trp_over_latency_qos;
- *value2 = requested.trp_over_through_qos;
- break;
+ case TASK_POLICY_OVERRIDE_LATENCY_AND_THROUGHPUT_QOS:
+ assert(category == TASK_POLICY_ATTRIBUTE);
+ *value1 = requested.trp_over_latency_qos;
+ *value2 = requested.trp_over_through_qos;
+ break;
- default:
- panic("unknown policy_flavor %d", flavor);
- break;
+ default:
+ panic("unknown policy_flavor %d", flavor);
+ break;
}
task_unlock(task);
*/
int
proc_get_effective_task_policy(task_t task,
- int flavor)
+ int flavor)
{
int value = 0;
switch (flavor) {
- case TASK_POLICY_DARWIN_BG:
- /*
- * This backs the KPI call proc_pidbackgrounded to find
- * out if a pid is backgrounded.
- * It is used to communicate state to the VM system, as well as
- * prioritizing requests to the graphics system.
- * Returns 1 for background mode, 0 for normal mode
- */
- value = task->effective_policy.tep_darwinbg;
- break;
- case TASK_POLICY_ALL_SOCKETS_BG:
- /*
- * do_background_socket() calls this to determine what it should do to the proc's sockets
- * Returns 1 for background mode, 0 for normal mode
- *
- * This consults both thread and task so un-DBGing a thread while the task is BG
- * doesn't get you out of the network throttle.
- */
- value = task->effective_policy.tep_all_sockets_bg;
- break;
- case TASK_POLICY_LATENCY_QOS:
- /*
- * timer arming calls into here to find out the timer coalescing level
- * Returns a QoS tier (0-6)
- */
- value = task->effective_policy.tep_latency_qos;
- break;
- case TASK_POLICY_THROUGH_QOS:
- /*
- * This value is passed into the urgency callout from the scheduler
- * to the performance management subsystem.
- * Returns a QoS tier (0-6)
- */
- value = task->effective_policy.tep_through_qos;
- break;
- case TASK_POLICY_ROLE:
- /*
- * This controls various things that ask whether a process is foreground,
- * like SFI, VM, access to GPU, etc
- */
- value = task->effective_policy.tep_role;
- break;
- case TASK_POLICY_WATCHERS_BG:
- /*
- * This controls whether or not a thread watching this process should be BG.
- */
- value = task->effective_policy.tep_watchers_bg;
- break;
- case TASK_POLICY_SFI_MANAGED:
- /*
- * This controls whether or not a process is targeted for specific control by thermald.
- */
- value = task->effective_policy.tep_sfi_managed;
- break;
- default:
- panic("unknown policy_flavor %d", flavor);
- break;
+ case TASK_POLICY_DARWIN_BG:
+ /*
+ * This backs the KPI call proc_pidbackgrounded to find
+ * out if a pid is backgrounded.
+ * It is used to communicate state to the VM system, as well as
+ * prioritizing requests to the graphics system.
+ * Returns 1 for background mode, 0 for normal mode
+ */
+ value = task->effective_policy.tep_darwinbg;
+ break;
+ case TASK_POLICY_ALL_SOCKETS_BG:
+ /*
+ * do_background_socket() calls this to determine what it should do to the proc's sockets
+ * Returns 1 for background mode, 0 for normal mode
+ *
+ * This consults both thread and task so un-DBGing a thread while the task is BG
+ * doesn't get you out of the network throttle.
+ */
+ value = task->effective_policy.tep_all_sockets_bg;
+ break;
+ case TASK_POLICY_SUP_ACTIVE:
+ /*
+ * Is the task in AppNap? This is used to determine the urgency
+ * that's passed to the performance management subsystem for threads
+ * that are running at a priority <= MAXPRI_THROTTLE.
+ */
+ value = task->effective_policy.tep_sup_active;
+ break;
+ case TASK_POLICY_LATENCY_QOS:
+ /*
+ * timer arming calls into here to find out the timer coalescing level
+ * Returns a QoS tier (0-6)
+ */
+ value = task->effective_policy.tep_latency_qos;
+ break;
+ case TASK_POLICY_THROUGH_QOS:
+ /*
+ * This value is passed into the urgency callout from the scheduler
+ * to the performance management subsystem.
+ * Returns a QoS tier (0-6)
+ */
+ value = task->effective_policy.tep_through_qos;
+ break;
+ case TASK_POLICY_ROLE:
+ /*
+ * This controls various things that ask whether a process is foreground,
+ * like SFI, VM, access to GPU, etc
+ */
+ value = task->effective_policy.tep_role;
+ break;
+ case TASK_POLICY_WATCHERS_BG:
+ /*
+ * This controls whether or not a thread watching this process should be BG.
+ */
+ value = task->effective_policy.tep_watchers_bg;
+ break;
+ case TASK_POLICY_SFI_MANAGED:
+ /*
+ * This controls whether or not a process is targeted for specific control by thermald.
+ */
+ value = task->effective_policy.tep_sfi_managed;
+ break;
+ default:
+ panic("unknown policy_flavor %d", flavor);
+ break;
}
return value;
*passive = 0;
*tier = 0;
switch (iopolicy) {
- case IOPOL_IMPORTANT:
- *tier = THROTTLE_LEVEL_TIER0;
- break;
- case IOPOL_PASSIVE:
- *tier = THROTTLE_LEVEL_TIER0;
- *passive = 1;
- break;
- case IOPOL_STANDARD:
- *tier = THROTTLE_LEVEL_TIER1;
- break;
- case IOPOL_UTILITY:
- *tier = THROTTLE_LEVEL_TIER2;
- break;
- case IOPOL_THROTTLE:
- *tier = THROTTLE_LEVEL_TIER3;
- break;
- default:
- panic("unknown I/O policy %d", iopolicy);
- break;
+ case IOPOL_IMPORTANT:
+ *tier = THROTTLE_LEVEL_TIER0;
+ break;
+ case IOPOL_PASSIVE:
+ *tier = THROTTLE_LEVEL_TIER0;
+ *passive = 1;
+ break;
+ case IOPOL_STANDARD:
+ *tier = THROTTLE_LEVEL_TIER1;
+ break;
+ case IOPOL_UTILITY:
+ *tier = THROTTLE_LEVEL_TIER2;
+ break;
+ case IOPOL_THROTTLE:
+ *tier = THROTTLE_LEVEL_TIER3;
+ break;
+ default:
+ panic("unknown I/O policy %d", iopolicy);
+ break;
}
}
{
if (passive == 1) {
switch (tier) {
- case THROTTLE_LEVEL_TIER0:
- return IOPOL_PASSIVE;
- default:
- panic("unknown passive tier %d", tier);
- return IOPOL_DEFAULT;
+ case THROTTLE_LEVEL_TIER0:
+ return IOPOL_PASSIVE;
+ default:
+ panic("unknown passive tier %d", tier);
+ return IOPOL_DEFAULT;
}
} else {
switch (tier) {
- case THROTTLE_LEVEL_NONE:
- case THROTTLE_LEVEL_TIER0:
- return IOPOL_DEFAULT;
- case THROTTLE_LEVEL_TIER1:
- return IOPOL_STANDARD;
- case THROTTLE_LEVEL_TIER2:
- return IOPOL_UTILITY;
- case THROTTLE_LEVEL_TIER3:
- return IOPOL_THROTTLE;
- default:
- panic("unknown tier %d", tier);
- return IOPOL_DEFAULT;
+ case THROTTLE_LEVEL_NONE:
+ case THROTTLE_LEVEL_TIER0:
+ return IOPOL_DEFAULT;
+ case THROTTLE_LEVEL_TIER1:
+ return IOPOL_STANDARD;
+ case THROTTLE_LEVEL_TIER2:
+ return IOPOL_UTILITY;
+ case THROTTLE_LEVEL_TIER3:
+ return IOPOL_THROTTLE;
+ default:
+ panic("unknown tier %d", tier);
+ return IOPOL_DEFAULT;
}
}
}
int
-proc_darwin_role_to_task_role(int darwin_role, int* task_role)
+proc_darwin_role_to_task_role(int darwin_role, task_role_t* task_role)
{
integer_t role = TASK_UNSPECIFIED;
switch (darwin_role) {
- case PRIO_DARWIN_ROLE_DEFAULT:
- role = TASK_UNSPECIFIED;
- break;
- case PRIO_DARWIN_ROLE_UI_FOCAL:
- role = TASK_FOREGROUND_APPLICATION;
- break;
- case PRIO_DARWIN_ROLE_UI:
- role = TASK_DEFAULT_APPLICATION;
- break;
- case PRIO_DARWIN_ROLE_NON_UI:
- role = TASK_NONUI_APPLICATION;
- break;
- case PRIO_DARWIN_ROLE_UI_NON_FOCAL:
- role = TASK_BACKGROUND_APPLICATION;
- break;
- case PRIO_DARWIN_ROLE_TAL_LAUNCH:
- role = TASK_THROTTLE_APPLICATION;
- break;
- default:
- return EINVAL;
+ case PRIO_DARWIN_ROLE_DEFAULT:
+ role = TASK_UNSPECIFIED;
+ break;
+ case PRIO_DARWIN_ROLE_UI_FOCAL:
+ role = TASK_FOREGROUND_APPLICATION;
+ break;
+ case PRIO_DARWIN_ROLE_UI:
+ role = TASK_DEFAULT_APPLICATION;
+ break;
+ case PRIO_DARWIN_ROLE_NON_UI:
+ role = TASK_NONUI_APPLICATION;
+ break;
+ case PRIO_DARWIN_ROLE_UI_NON_FOCAL:
+ role = TASK_BACKGROUND_APPLICATION;
+ break;
+ case PRIO_DARWIN_ROLE_TAL_LAUNCH:
+ role = TASK_THROTTLE_APPLICATION;
+ break;
+ case PRIO_DARWIN_ROLE_DARWIN_BG:
+ role = TASK_DARWINBG_APPLICATION;
+ break;
+ default:
+ return EINVAL;
}
*task_role = role;
}
int
-proc_task_role_to_darwin_role(int task_role)
+proc_task_role_to_darwin_role(task_role_t task_role)
{
- switch (task_role) {
- case TASK_FOREGROUND_APPLICATION:
- return PRIO_DARWIN_ROLE_UI_FOCAL;
- case TASK_BACKGROUND_APPLICATION:
- return PRIO_DARWIN_ROLE_UI_NON_FOCAL;
- case TASK_NONUI_APPLICATION:
- return PRIO_DARWIN_ROLE_NON_UI;
- case TASK_DEFAULT_APPLICATION:
- return PRIO_DARWIN_ROLE_UI;
- case TASK_THROTTLE_APPLICATION:
- return PRIO_DARWIN_ROLE_TAL_LAUNCH;
- case TASK_UNSPECIFIED:
- default:
- return PRIO_DARWIN_ROLE_DEFAULT;
+ switch (task_role) {
+ case TASK_FOREGROUND_APPLICATION:
+ return PRIO_DARWIN_ROLE_UI_FOCAL;
+ case TASK_BACKGROUND_APPLICATION:
+ return PRIO_DARWIN_ROLE_UI_NON_FOCAL;
+ case TASK_NONUI_APPLICATION:
+ return PRIO_DARWIN_ROLE_NON_UI;
+ case TASK_DEFAULT_APPLICATION:
+ return PRIO_DARWIN_ROLE_UI;
+ case TASK_THROTTLE_APPLICATION:
+ return PRIO_DARWIN_ROLE_TAL_LAUNCH;
+ case TASK_DARWINBG_APPLICATION:
+ return PRIO_DARWIN_ROLE_DARWIN_BG;
+ case TASK_UNSPECIFIED:
+ default:
+ return PRIO_DARWIN_ROLE_DEFAULT;
}
}
/* TODO: remove this variable when interactive daemon audit period is over */
-extern boolean_t ipc_importance_interactive_receiver;
+static TUNABLE(bool, ipc_importance_interactive_receiver,
+ "imp_interactive_receiver", false);
/*
* Called at process exec to initialize the apptype, qos clamp, and qos seed of a process
* TODO: Make this function more table-driven instead of ad-hoc
*/
void
-proc_set_task_spawnpolicy(task_t task, int apptype, int qos_clamp, int role,
- ipc_port_t * portwatch_ports, int portwatch_count)
+proc_set_task_spawnpolicy(task_t task, thread_t thread, int apptype, int qos_clamp, task_role_t role,
+ ipc_port_t * portwatch_ports, uint32_t portwatch_count)
{
struct task_pend_token pend_token = {};
KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE,
- (IMPORTANCE_CODE(IMP_TASK_APPTYPE, apptype)) | DBG_FUNC_START,
- task_pid(task), trequested_0(task), trequested_1(task),
- apptype, 0);
+ (IMPORTANCE_CODE(IMP_TASK_APPTYPE, apptype)) | DBG_FUNC_START,
+ task_pid(task), trequested_0(task), trequested_1(task),
+ apptype, 0);
switch (apptype) {
- case TASK_APPTYPE_APP_TAL:
- case TASK_APPTYPE_APP_DEFAULT:
- /* Apps become donors via the 'live-donor' flag instead of the static donor flag */
- task_importance_mark_donor(task, FALSE);
- task_importance_mark_live_donor(task, TRUE);
- task_importance_mark_receiver(task, FALSE);
- /* Apps are de-nap recievers on desktop for suppression behaviors */
- task_importance_mark_denap_receiver(task, TRUE);
- break;
+ case TASK_APPTYPE_APP_DEFAULT:
+ /* Apps become donors via the 'live-donor' flag instead of the static donor flag */
+ task_importance_mark_donor(task, FALSE);
+ task_importance_mark_live_donor(task, TRUE);
+ task_importance_mark_receiver(task, FALSE);
+#if !defined(XNU_TARGET_OS_OSX)
+ task_importance_mark_denap_receiver(task, FALSE);
+#else
+ /* Apps are de-nap recievers on macOS for suppression behaviors */
+ task_importance_mark_denap_receiver(task, TRUE);
+#endif /* !defined(XNU_TARGET_OS_OSX) */
+ break;
- case TASK_APPTYPE_DAEMON_INTERACTIVE:
- task_importance_mark_donor(task, TRUE);
- task_importance_mark_live_donor(task, FALSE);
-
- /*
- * A boot arg controls whether interactive daemons are importance receivers.
- * Normally, they are not. But for testing their behavior as an adaptive
- * daemon, the boot-arg can be set.
- *
- * TODO: remove this when the interactive daemon audit period is over.
- */
- task_importance_mark_receiver(task, /* FALSE */ ipc_importance_interactive_receiver);
- task_importance_mark_denap_receiver(task, FALSE);
- break;
+ case TASK_APPTYPE_DAEMON_INTERACTIVE:
+ task_importance_mark_donor(task, TRUE);
+ task_importance_mark_live_donor(task, FALSE);
- case TASK_APPTYPE_DAEMON_STANDARD:
- task_importance_mark_donor(task, TRUE);
- task_importance_mark_live_donor(task, FALSE);
- task_importance_mark_receiver(task, FALSE);
- task_importance_mark_denap_receiver(task, FALSE);
- break;
+ /*
+ * A boot arg controls whether interactive daemons are importance receivers.
+ * Normally, they are not. But for testing their behavior as an adaptive
+ * daemon, the boot-arg can be set.
+ *
+ * TODO: remove this when the interactive daemon audit period is over.
+ */
+ task_importance_mark_receiver(task, /* FALSE */ ipc_importance_interactive_receiver);
+ task_importance_mark_denap_receiver(task, FALSE);
+ break;
- case TASK_APPTYPE_DAEMON_ADAPTIVE:
- task_importance_mark_donor(task, FALSE);
- task_importance_mark_live_donor(task, FALSE);
- task_importance_mark_receiver(task, TRUE);
- task_importance_mark_denap_receiver(task, FALSE);
- break;
+ case TASK_APPTYPE_DAEMON_STANDARD:
+ task_importance_mark_donor(task, TRUE);
+ task_importance_mark_live_donor(task, FALSE);
+ task_importance_mark_receiver(task, FALSE);
+ task_importance_mark_denap_receiver(task, FALSE);
+ break;
- case TASK_APPTYPE_DAEMON_BACKGROUND:
- task_importance_mark_donor(task, FALSE);
- task_importance_mark_live_donor(task, FALSE);
- task_importance_mark_receiver(task, FALSE);
- task_importance_mark_denap_receiver(task, FALSE);
- break;
+ case TASK_APPTYPE_DAEMON_ADAPTIVE:
+ task_importance_mark_donor(task, FALSE);
+ task_importance_mark_live_donor(task, FALSE);
+ task_importance_mark_receiver(task, TRUE);
+ task_importance_mark_denap_receiver(task, FALSE);
+ break;
- case TASK_APPTYPE_NONE:
- break;
+ case TASK_APPTYPE_DAEMON_BACKGROUND:
+ task_importance_mark_donor(task, FALSE);
+ task_importance_mark_live_donor(task, FALSE);
+ task_importance_mark_receiver(task, FALSE);
+ task_importance_mark_denap_receiver(task, FALSE);
+ break;
+
+ case TASK_APPTYPE_DRIVER:
+ task_importance_mark_donor(task, FALSE);
+ task_importance_mark_live_donor(task, FALSE);
+ task_importance_mark_receiver(task, FALSE);
+ task_importance_mark_denap_receiver(task, FALSE);
+ break;
+
+ case TASK_APPTYPE_NONE:
+ break;
}
if (portwatch_ports != NULL && apptype == TASK_APPTYPE_DAEMON_ADAPTIVE) {
int portwatch_boosts = 0;
- for (int i = 0; i < portwatch_count; i++) {
+ for (uint32_t i = 0; i < portwatch_count; i++) {
ipc_port_t port = NULL;
- if ((port = portwatch_ports[i]) != NULL) {
+ if (IP_VALID(port = portwatch_ports[i])) {
int boost = 0;
task_add_importance_watchport(task, port, &boost);
portwatch_boosts += boost;
}
}
- task_lock(task);
-
- if (apptype == TASK_APPTYPE_APP_TAL) {
- /* TAL starts off enabled by default */
- task->requested_policy.trp_tal_enabled = 1;
+ /* Redirect the turnstile push of watchports to task */
+ if (portwatch_count && portwatch_ports != NULL) {
+ task_add_turnstile_watchports(task, thread, portwatch_ports, portwatch_count);
}
+ task_lock(task);
+
if (apptype != TASK_APPTYPE_NONE) {
task->requested_policy.trp_apptype = apptype;
}
+#if !defined(XNU_TARGET_OS_OSX)
+ /* Remove this after launchd starts setting it properly */
+ if (apptype == TASK_APPTYPE_APP_DEFAULT && role == TASK_UNSPECIFIED) {
+ task->requested_policy.trp_role = TASK_FOREGROUND_APPLICATION;
+ } else
+#endif
if (role != TASK_UNSPECIFIED) {
- task->requested_policy.trp_role = role;
+ task->requested_policy.trp_role = (uint32_t)role;
}
if (qos_clamp != THREAD_QOS_UNSPECIFIED) {
task_policy_update_complete_unlocked(task, &pend_token);
KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE,
- (IMPORTANCE_CODE(IMP_TASK_APPTYPE, apptype)) | DBG_FUNC_END,
- task_pid(task), trequested_0(task), trequested_1(task),
- task_is_importance_receiver(task), 0);
+ (IMPORTANCE_CODE(IMP_TASK_APPTYPE, apptype)) | DBG_FUNC_END,
+ task_pid(task), trequested_0(task), trequested_1(task),
+ task_is_importance_receiver(task), 0);
}
/*
*/
void
proc_inherit_task_role(task_t new_task,
- task_t old_task)
+ task_t old_task)
{
int role;
proc_set_task_policy(new_task, TASK_POLICY_ATTRIBUTE, TASK_POLICY_ROLE, role);
}
-extern void *initproc;
+extern void * XNU_PTRAUTH_SIGNED_PTR("initproc") initproc;
/*
* Compute the default main thread qos for a task
*/
-int
+thread_qos_t
task_compute_main_thread_qos(task_t task)
{
- int primordial_qos = THREAD_QOS_UNSPECIFIED;
+ thread_qos_t primordial_qos = THREAD_QOS_UNSPECIFIED;
- int qos_clamp = task->requested_policy.trp_qos_clamp;
+ thread_qos_t qos_clamp = task->requested_policy.trp_qos_clamp;
switch (task->requested_policy.trp_apptype) {
- case TASK_APPTYPE_APP_TAL:
- case TASK_APPTYPE_APP_DEFAULT:
- primordial_qos = THREAD_QOS_USER_INTERACTIVE;
- break;
+ case TASK_APPTYPE_APP_TAL:
+ case TASK_APPTYPE_APP_DEFAULT:
+ primordial_qos = THREAD_QOS_USER_INTERACTIVE;
+ break;
- case TASK_APPTYPE_DAEMON_INTERACTIVE:
- case TASK_APPTYPE_DAEMON_STANDARD:
- case TASK_APPTYPE_DAEMON_ADAPTIVE:
- primordial_qos = THREAD_QOS_LEGACY;
- break;
+ case TASK_APPTYPE_DAEMON_INTERACTIVE:
+ case TASK_APPTYPE_DAEMON_STANDARD:
+ case TASK_APPTYPE_DAEMON_ADAPTIVE:
+ case TASK_APPTYPE_DRIVER:
+ primordial_qos = THREAD_QOS_LEGACY;
+ break;
- case TASK_APPTYPE_DAEMON_BACKGROUND:
- primordial_qos = THREAD_QOS_BACKGROUND;
- break;
+ case TASK_APPTYPE_DAEMON_BACKGROUND:
+ primordial_qos = THREAD_QOS_BACKGROUND;
+ break;
}
if (task->bsd_info == initproc) {
}
}
+bool
+task_is_driver(task_t task)
+{
+ if (!task) {
+ return FALSE;
+ }
+ return task->requested_policy.trp_apptype == TASK_APPTYPE_DRIVER;
+}
+
boolean_t
task_is_app(task_t task)
{
int
proc_get_darwinbgstate(task_t task, uint32_t * flagsp)
{
- if (task->requested_policy.trp_ext_darwinbg)
+ if (task->requested_policy.trp_ext_darwinbg) {
*flagsp |= PROC_FLAG_EXT_DARWINBG;
+ }
- if (task->requested_policy.trp_int_darwinbg)
+ if (task->requested_policy.trp_int_darwinbg) {
*flagsp |= PROC_FLAG_DARWINBG;
+ }
+
+#if !defined(XNU_TARGET_OS_OSX)
+ if (task->requested_policy.trp_apptype == TASK_APPTYPE_DAEMON_BACKGROUND) {
+ *flagsp |= PROC_FLAG_IOS_APPLEDAEMON;
+ }
+ if (task->requested_policy.trp_apptype == TASK_APPTYPE_DAEMON_ADAPTIVE) {
+ *flagsp |= PROC_FLAG_IOS_IMPPROMOTION;
+ }
+#endif /* !defined(XNU_TARGET_OS_OSX) */
if (task->requested_policy.trp_apptype == TASK_APPTYPE_APP_DEFAULT ||
- task->requested_policy.trp_apptype == TASK_APPTYPE_APP_TAL)
+ task->requested_policy.trp_apptype == TASK_APPTYPE_APP_TAL) {
*flagsp |= PROC_FLAG_APPLICATION;
+ }
- if (task->requested_policy.trp_apptype == TASK_APPTYPE_DAEMON_ADAPTIVE)
+ if (task->requested_policy.trp_apptype == TASK_APPTYPE_DAEMON_ADAPTIVE) {
*flagsp |= PROC_FLAG_ADAPTIVE;
+ }
if (task->requested_policy.trp_apptype == TASK_APPTYPE_DAEMON_ADAPTIVE &&
- task->requested_policy.trp_boosted == 1)
+ task->requested_policy.trp_boosted == 1) {
*flagsp |= PROC_FLAG_ADAPTIVE_IMPORTANT;
+ }
- if (task_is_importance_donor(task))
+ if (task_is_importance_donor(task)) {
*flagsp |= PROC_FLAG_IMPORTANCE_DONOR;
+ }
- if (task->effective_policy.tep_sup_active)
+ if (task->effective_policy.tep_sup_active) {
*flagsp |= PROC_FLAG_SUPPRESSED;
+ }
- return(0);
+ return 0;
}
/*
* given tracepoint will emit either requested or effective data, but not both.
*
* A tracepoint may emit any of task, thread, or task & thread data.
- *
+ *
* The type of data emitted varies with pointer size. Where possible, both
* task and thread data are emitted. In LP32 systems, the first and second
* halves of either the task or thread data is emitted.
}
/* dump pending for tracepoint */
-uint32_t tpending(task_pend_token_t pend_token) { return *(uint32_t*)(void*)(pend_token); }
+uint32_t
+tpending(task_pend_token_t pend_token)
+{
+ return *(uint32_t*)(void*)(pend_token);
+}
uint64_t
task_requested_bitfield(task_t task)
bits |= (requested.trp_ext_iotier ? (((uint64_t)requested.trp_ext_iotier) << POLICY_REQ_EXT_IO_TIER_SHIFT) : 0);
bits |= (requested.trp_int_iopassive ? POLICY_REQ_INT_PASSIVE_IO : 0);
bits |= (requested.trp_ext_iopassive ? POLICY_REQ_EXT_PASSIVE_IO : 0);
- bits |= (requested.trp_bg_iotier ? (((uint64_t)requested.trp_bg_iotier) << POLICY_REQ_BG_IOTIER_SHIFT) : 0);
+ bits |= (requested.trp_bg_iotier ? (((uint64_t)requested.trp_bg_iotier) << POLICY_REQ_BG_IOTIER_SHIFT) : 0);
bits |= (requested.trp_terminated ? POLICY_REQ_TERMINATED : 0);
bits |= (requested.trp_boosted ? POLICY_REQ_BOOSTED : 0);
bits |= (requested.trp_tal_enabled ? POLICY_REQ_TAL_ENABLED : 0);
bits |= (requested.trp_apptype ? (((uint64_t)requested.trp_apptype) << POLICY_REQ_APPTYPE_SHIFT) : 0);
- bits |= (requested.trp_role ? (((uint64_t)requested.trp_role) << POLICY_REQ_ROLE_SHIFT) : 0);
+ bits |= (requested.trp_role ? (((uint64_t)requested.trp_role) << POLICY_REQ_ROLE_SHIFT) : 0);
bits |= (requested.trp_sup_active ? POLICY_REQ_SUP_ACTIVE : 0);
bits |= (requested.trp_sup_lowpri_cpu ? POLICY_REQ_SUP_LOWPRI_CPU : 0);
bits |= (requested.trp_sup_cpu ? POLICY_REQ_SUP_CPU : 0);
- bits |= (requested.trp_sup_timer ? (((uint64_t)requested.trp_sup_timer) << POLICY_REQ_SUP_TIMER_THROTTLE_SHIFT) : 0);
- bits |= (requested.trp_sup_throughput ? (((uint64_t)requested.trp_sup_throughput) << POLICY_REQ_SUP_THROUGHPUT_SHIFT) : 0);
+ bits |= (requested.trp_sup_timer ? (((uint64_t)requested.trp_sup_timer) << POLICY_REQ_SUP_TIMER_THROTTLE_SHIFT) : 0);
+ bits |= (requested.trp_sup_throughput ? (((uint64_t)requested.trp_sup_throughput) << POLICY_REQ_SUP_THROUGHPUT_SHIFT) : 0);
bits |= (requested.trp_sup_disk ? POLICY_REQ_SUP_DISK_THROTTLE : 0);
bits |= (requested.trp_sup_bg_sockets ? POLICY_REQ_SUP_BG_SOCKETS : 0);
bits |= (requested.trp_base_through_qos ? (((uint64_t)requested.trp_base_through_qos) << POLICY_REQ_BASE_THROUGH_QOS_SHIFT) : 0);
bits |= (requested.trp_over_through_qos ? (((uint64_t)requested.trp_over_through_qos) << POLICY_REQ_OVER_THROUGH_QOS_SHIFT) : 0);
bits |= (requested.trp_sfi_managed ? POLICY_REQ_SFI_MANAGED : 0);
- bits |= (requested.trp_qos_clamp ? (((uint64_t)requested.trp_qos_clamp) << POLICY_REQ_QOS_CLAMP_SHIFT) : 0);
+ bits |= (requested.trp_qos_clamp ? (((uint64_t)requested.trp_qos_clamp) << POLICY_REQ_QOS_CLAMP_SHIFT) : 0);
return bits;
}
bits |= (effective.tep_watchers_bg ? POLICY_EFF_WATCHERS_BG : 0);
bits |= (effective.tep_sup_active ? POLICY_EFF_SUP_ACTIVE : 0);
bits |= (effective.tep_suppressed_cpu ? POLICY_EFF_SUP_CPU : 0);
- bits |= (effective.tep_role ? (((uint64_t)effective.tep_role) << POLICY_EFF_ROLE_SHIFT) : 0);
+ bits |= (effective.tep_role ? (((uint64_t)effective.tep_role) << POLICY_EFF_ROLE_SHIFT) : 0);
bits |= (effective.tep_latency_qos ? (((uint64_t)effective.tep_latency_qos) << POLICY_EFF_LATENCY_QOS_SHIFT) : 0);
bits |= (effective.tep_through_qos ? (((uint64_t)effective.tep_through_qos) << POLICY_EFF_THROUGH_QOS_SHIFT) : 0);
bits |= (effective.tep_sfi_managed ? POLICY_EFF_SFI_MANAGED : 0);
* Resource usage and CPU related routines
*/
-int
+int
proc_get_task_ruse_cpu(task_t task, uint32_t *policyp, uint8_t *percentagep, uint64_t *intervalp, uint64_t *deadlinep)
{
-
int error = 0;
int scope;
task_lock(task);
-
+
error = task_get_cpuusage(task, percentagep, intervalp, deadlinep, &scope);
task_unlock(task);
*policyp = TASK_POLICY_RESOURCE_ATTRIBUTE_NONE;
}
- return(error);
+ return error;
}
/*
* device tree.
*/
if (!PE_parse_boot_argn("max_cpumon_percentage", &proc_max_cpumon_percentage,
- sizeof (proc_max_cpumon_percentage)))
- {
+ sizeof(proc_max_cpumon_percentage))) {
uint64_t max_percentage = 0ULL;
if (!PE_get_default("kern.max_cpumon_percentage", &max_percentage,
- sizeof(max_percentage)))
- {
+ sizeof(max_percentage))) {
max_percentage = DEFAULT_CPUMON_PERCENTAGE;
}
* via boot-args and the device tree.
*/
if (!PE_parse_boot_argn("max_cpumon_interval", &proc_max_cpumon_interval,
- sizeof (proc_max_cpumon_interval)))
- {
+ sizeof(proc_max_cpumon_interval))) {
if (!PE_get_default("kern.max_cpumon_interval", &proc_max_cpumon_interval,
- sizeof(proc_max_cpumon_interval)))
- {
+ sizeof(proc_max_cpumon_interval))) {
proc_max_cpumon_interval = DEFAULT_CPUMON_INTERVAL;
}
}
proc_max_cpumon_interval *= NSEC_PER_SEC;
/* TEMPORARY boot arg to control App suppression */
- PE_parse_boot_argn("task_policy_suppression_disable",
- &task_policy_suppression_disable,
- sizeof(task_policy_suppression_disable));
+ PE_parse_boot_argn("task_policy_suppression_flags",
+ &task_policy_suppression_flags,
+ sizeof(task_policy_suppression_flags));
+
+ /* adjust suppression disk policy if called for in boot arg */
+ if (task_policy_suppression_flags & TASK_POLICY_SUPPRESSION_IOTIER2) {
+ proc_suppressed_disk_tier = THROTTLE_LEVEL_TIER2;
+ }
}
/*
* Currently, requesting notification via an exception is the only way to get per-thread scope for a
* CPU limit. All other types of notifications force task-wide scope for the limit.
*/
-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_set_task_ruse_cpu(task_t task, uint16_t policy, uint8_t percentage, uint64_t interval, uint64_t deadline,
+ int cpumon_entitled)
{
int error = 0;
int scope;
- /*
- * Enforce the matrix of supported configurations for policy, percentage, and deadline.
- */
- switch (policy) {
- // If no policy is explicitly given, the default is to throttle.
- case TASK_POLICY_RESOURCE_ATTRIBUTE_NONE:
+ /*
+ * Enforce the matrix of supported configurations for policy, percentage, and deadline.
+ */
+ switch (policy) {
+ // If no policy is explicitly given, the default is to throttle.
+ case TASK_POLICY_RESOURCE_ATTRIBUTE_NONE:
case TASK_POLICY_RESOURCE_ATTRIBUTE_THROTTLE:
- if (deadline != 0)
- return (ENOTSUP);
+ if (deadline != 0) {
+ return ENOTSUP;
+ }
scope = TASK_RUSECPU_FLAGS_PROC_LIMIT;
break;
case TASK_POLICY_RESOURCE_ATTRIBUTE_SUSPEND:
case TASK_POLICY_RESOURCE_ATTRIBUTE_TERMINATE:
case TASK_POLICY_RESOURCE_ATTRIBUTE_NOTIFY_KQ:
- if (percentage != 0)
- return (ENOTSUP);
+ if (percentage != 0) {
+ return ENOTSUP;
+ }
scope = TASK_RUSECPU_FLAGS_DEADLINE;
break;
- case TASK_POLICY_RESOURCE_ATTRIBUTE_NOTIFY_EXC:
- if (deadline != 0)
- return (ENOTSUP);
+ case TASK_POLICY_RESOURCE_ATTRIBUTE_NOTIFY_EXC:
+ if (deadline != 0) {
+ return ENOTSUP;
+ }
scope = TASK_RUSECPU_FLAGS_PERTHR_LIMIT;
#ifdef CONFIG_NOMONITORS
- return (error);
+ return error;
#endif /* CONFIG_NOMONITORS */
break;
default:
- return (EINVAL);
+ return EINVAL;
}
task_lock(task);
}
error = task_set_cpuusage(task, percentage, interval, deadline, scope, cpumon_entitled);
task_unlock(task);
- return(error);
+ return error;
}
/* TODO: get rid of these */
#define TASK_POLICY_RESOURCE_USAGE_COUNT 6
-int
+int
proc_clear_task_ruse_cpu(task_t task, int cpumon_entitled)
{
int error = 0;
}
error = task_clear_cpuusage_locked(task, cpumon_entitled);
- if (error != 0)
- goto out;
+ if (error != 0) {
+ goto out;
+ }
action = task->applied_ru_cpu;
if (task->applied_ru_cpu_ext != TASK_POLICY_RESOURCE_ATTRIBUTE_NONE) {
out:
task_unlock(task);
out1:
- return(error);
-
+ return error;
}
/* used to apply resource limit related actions */
{
int action = TASK_POLICY_RESOURCE_ATTRIBUTE_NONE;
void * bsdinfo = NULL;
-
+
switch (type) {
- case TASK_POLICY_CPU_RESOURCE_USAGE:
- break;
- case TASK_POLICY_WIREDMEM_RESOURCE_USAGE:
- case TASK_POLICY_VIRTUALMEM_RESOURCE_USAGE:
- case TASK_POLICY_DISK_RESOURCE_USAGE:
- case TASK_POLICY_NETWORK_RESOURCE_USAGE:
- case TASK_POLICY_POWER_RESOURCE_USAGE:
- return(0);
+ case TASK_POLICY_CPU_RESOURCE_USAGE:
+ break;
+ case TASK_POLICY_WIREDMEM_RESOURCE_USAGE:
+ case TASK_POLICY_VIRTUALMEM_RESOURCE_USAGE:
+ case TASK_POLICY_DISK_RESOURCE_USAGE:
+ case TASK_POLICY_NETWORK_RESOURCE_USAGE:
+ case TASK_POLICY_POWER_RESOURCE_USAGE:
+ return 0;
- default:
- return(1);
- };
+ default:
+ return 1;
+ }
+ ;
/* only cpu actions for now */
task_lock(task);
-
+
if (task->applied_ru_cpu_ext == TASK_POLICY_RESOURCE_ATTRIBUTE_NONE) {
/* apply action */
task->applied_ru_cpu_ext = task->policy_ru_cpu_ext;
bsdinfo = task->bsd_info;
task_unlock(task);
proc_apply_resource_actions(bsdinfo, TASK_POLICY_CPU_RESOURCE_USAGE, action);
- } else
+ } else {
task_unlock(task);
+ }
- return(0);
+ return 0;
}
/*
*scope = 0;
}
- return(0);
+ return 0;
}
/*
task_suspend_cpumon(task_t task)
{
thread_t thread;
-
+
task_lock_assert_owned(task);
if ((task->rusage_cpu_flags & TASK_RUSECPU_FLAGS_PERTHR_LIMIT) == 0) {
/*
* Suspend monitoring for the task, and propagate that change to each thread.
*/
- task->rusage_cpu_flags &= ~(TASK_RUSECPU_FLAGS_PERTHR_LIMIT | TASK_RUSECPU_FLAGS_FATAL_CPUMON);
+ task->rusage_cpu_flags &= ~(TASK_RUSECPU_FLAGS_PERTHR_LIMIT | TASK_RUSECPU_FLAGS_FATAL_CPUMON);
queue_iterate(&task->threads, thread, thread_t, task_threads) {
- set_astledger(thread);
+ act_set_astledger(thread);
}
return KERN_SUCCESS;
task_lock_assert_owned(task);
kret = task_suspend_cpumon(task);
- if (kret) return kret;
+ if (kret) {
+ return kret;
+ }
/* Once we clear these values, the monitor can't be resumed */
task->rusage_cpu_perthr_percentage = 0;
task->rusage_cpu_perthr_interval = 0;
- return (KERN_SUCCESS);
+ return KERN_SUCCESS;
}
task_lock_assert_owned(task);
if (task->rusage_cpu_perthr_percentage == 0 ||
- task->rusage_cpu_perthr_interval == 0) {
+ task->rusage_cpu_perthr_interval == 0) {
return KERN_INVALID_ARGUMENT;
}
task->rusage_cpu_flags |= TASK_RUSECPU_FLAGS_PERTHR_LIMIT;
queue_iterate(&task->threads, thread, thread_t, task_threads) {
- set_astledger(thread);
+ act_set_astledger(thread);
}
return KERN_SUCCESS;
/* duplicate values from bsd/sys/process_policy.h */
-#define PROC_POLICY_CPUMON_DISABLE 0xFF
-#define PROC_POLICY_CPUMON_DEFAULTS 0xFE
+#define PROC_POLICY_CPUMON_DISABLE 0xFF
+#define PROC_POLICY_CPUMON_DEFAULTS 0xFE
static int
task_set_cpuusage(task_t task, uint8_t percentage, uint64_t interval, uint64_t deadline, int scope, int cpumon_entitled)
lck_mtx_assert(&task->lock, LCK_MTX_ASSERT_OWNED);
/* By default, refill once per second */
- if (interval == 0)
+ if (interval == 0) {
interval = NSEC_PER_SEC;
+ }
if (percentage != 0) {
if (scope == TASK_RUSECPU_FLAGS_PERTHR_LIMIT) {
* missing the required entitlement:
* com.apple.private.kernel.override-cpumon
*
- * Instead, treat this as a request to reset its params
+ * Instead, treat this as a request to reset its params
* back to the defaults.
*/
warn = TRUE;
* - Leave the interval as-is, if there's already a per-thread
* limit configured
* - Use the system default.
- */
+ */
if (interval == -1ULL) {
if (task->rusage_cpu_flags & TASK_RUSECPU_FLAGS_PERTHR_LIMIT) {
- interval = task->rusage_cpu_perthr_interval;
+ interval = task->rusage_cpu_perthr_interval;
} else {
interval = proc_max_cpumon_interval;
}
* Enforce global caps on CPU usage monitor here if the process is not
* entitled to escape the global caps.
*/
- if ((percentage > proc_max_cpumon_percentage) && (cpumon_entitled == 0)) {
+ if ((percentage > proc_max_cpumon_percentage) && (cpumon_entitled == 0)) {
warn = TRUE;
- percentage = proc_max_cpumon_percentage;
- }
+ percentage = proc_max_cpumon_percentage;
+ }
- if ((interval > proc_max_cpumon_interval) && (cpumon_entitled == 0)) {
+ if ((interval > proc_max_cpumon_interval) && (cpumon_entitled == 0)) {
warn = TRUE;
- interval = proc_max_cpumon_interval;
- }
+ interval = proc_max_cpumon_interval;
+ }
if (warn) {
- int pid = 0;
+ int pid = 0;
const char *procname = "unknown";
#ifdef MACH_BSD
#endif
printf("process %s[%d] denied attempt to escape CPU monitor"
- " (missing required entitlement).\n", procname, pid);
+ " (missing required entitlement).\n", procname, pid);
}
/* configure the limit values */
}
}
- return(0);
+ return 0;
}
int
retval = task_clear_cpuusage_locked(task, cpumon_entitled);
task_unlock(task);
- return(retval);
+ return retval;
}
static int
/* cancel percentage handling if set */
if (task->rusage_cpu_flags & TASK_RUSECPU_FLAGS_PROC_LIMIT) {
- task->rusage_cpu_flags &= ~TASK_RUSECPU_FLAGS_PROC_LIMIT;
+ task->rusage_cpu_flags &= ~TASK_RUSECPU_FLAGS_PROC_LIMIT;
ledger_set_limit(task->ledger, task_ledgers.cpu_time, LEDGER_LIMIT_INFINITY, 0);
task->rusage_cpu_percentage = 0;
task->rusage_cpu_interval = 0;
task_lock(task);
}
}
- return(0);
+ return 0;
}
/* called by ledger unit to enforce action due to resource usage criteria being met */
* Routines for taskwatch and pidbind
*/
+#if CONFIG_TASKWATCH
+
+LCK_MTX_DECLARE_ATTR(task_watch_mtx, &task_lck_grp, &task_lck_attr);
+
+static void
+task_watch_lock(void)
+{
+ lck_mtx_lock(&task_watch_mtx);
+}
+
+static void
+task_watch_unlock(void)
+{
+ lck_mtx_unlock(&task_watch_mtx);
+}
+
+static void
+add_taskwatch_locked(task_t task, task_watch_t * twp)
+{
+ queue_enter(&task->task_watchers, twp, task_watch_t *, tw_links);
+ task->num_taskwatchers++;
+}
+
+static void
+remove_taskwatch_locked(task_t task, task_watch_t * twp)
+{
+ queue_remove(&task->task_watchers, twp, task_watch_t *, tw_links);
+ task->num_taskwatchers--;
+}
+
+
+int
+proc_lf_pidbind(task_t curtask, uint64_t tid, task_t target_task, int bind)
+{
+ thread_t target_thread = NULL;
+ int ret = 0, setbg = 0;
+ task_watch_t *twp = NULL;
+ task_t task = TASK_NULL;
+
+ target_thread = task_findtid(curtask, tid);
+ if (target_thread == NULL) {
+ return ESRCH;
+ }
+ /* holds thread reference */
+
+ if (bind != 0) {
+ /* task is still active ? */
+ task_lock(target_task);
+ if (target_task->active == 0) {
+ task_unlock(target_task);
+ ret = ESRCH;
+ goto out;
+ }
+ task_unlock(target_task);
+
+ twp = (task_watch_t *)kalloc(sizeof(task_watch_t));
+ if (twp == NULL) {
+ task_watch_unlock();
+ ret = ENOMEM;
+ goto out;
+ }
+
+ bzero(twp, sizeof(task_watch_t));
+
+ task_watch_lock();
+
+ if (target_thread->taskwatch != NULL) {
+ /* already bound to another task */
+ task_watch_unlock();
+
+ kfree(twp, sizeof(task_watch_t));
+ ret = EBUSY;
+ goto out;
+ }
+
+ task_reference(target_task);
+
+ setbg = proc_get_effective_task_policy(target_task, TASK_POLICY_WATCHERS_BG);
+
+ twp->tw_task = target_task; /* holds the task reference */
+ twp->tw_thread = target_thread; /* holds the thread reference */
+ twp->tw_state = setbg;
+ twp->tw_importance = target_thread->importance;
+
+ add_taskwatch_locked(target_task, twp);
+
+ target_thread->taskwatch = twp;
+
+ task_watch_unlock();
+
+ if (setbg) {
+ set_thread_appbg(target_thread, setbg, INT_MIN);
+ }
+
+ /* retain the thread reference as it is in twp */
+ target_thread = NULL;
+ } else {
+ /* unbind */
+ task_watch_lock();
+ if ((twp = target_thread->taskwatch) != NULL) {
+ task = twp->tw_task;
+ target_thread->taskwatch = NULL;
+ remove_taskwatch_locked(task, twp);
+
+ task_watch_unlock();
+
+ task_deallocate(task); /* drop task ref in twp */
+ set_thread_appbg(target_thread, 0, twp->tw_importance);
+ thread_deallocate(target_thread); /* drop thread ref in twp */
+ kfree(twp, sizeof(task_watch_t));
+ } else {
+ task_watch_unlock();
+ ret = 0; /* return success if it not alredy bound */
+ goto out;
+ }
+ }
+out:
+ thread_deallocate(target_thread); /* drop thread ref acquired in this routine */
+ return ret;
+}
+
+static void
+set_thread_appbg(thread_t thread, int setbg, __unused int importance)
+{
+ int enable = (setbg ? TASK_POLICY_ENABLE : TASK_POLICY_DISABLE);
+
+ proc_set_thread_policy(thread, TASK_POLICY_ATTRIBUTE, TASK_POLICY_PIDBIND_BG, enable);
+}
+
+static void
+apply_appstate_watchers(task_t task)
+{
+ int numwatchers = 0, i, j, setbg;
+ thread_watchlist_t * threadlist;
+ task_watch_t * twp;
+
+retry:
+ /* if no watchers on the list return */
+ if ((numwatchers = task->num_taskwatchers) == 0) {
+ return;
+ }
+
+ threadlist = kheap_alloc(KHEAP_TEMP,
+ numwatchers * sizeof(thread_watchlist_t), Z_WAITOK | Z_ZERO);
+ if (threadlist == NULL) {
+ return;
+ }
+
+ task_watch_lock();
+ /*serialize application of app state changes */
+
+ if (task->watchapplying != 0) {
+ lck_mtx_sleep(&task_watch_mtx, LCK_SLEEP_DEFAULT, &task->watchapplying, THREAD_UNINT);
+ task_watch_unlock();
+ kheap_free(KHEAP_TEMP, threadlist, numwatchers * sizeof(thread_watchlist_t));
+ goto retry;
+ }
+
+ if (numwatchers != task->num_taskwatchers) {
+ task_watch_unlock();
+ kheap_free(KHEAP_TEMP, threadlist, numwatchers * sizeof(thread_watchlist_t));
+ goto retry;
+ }
+
+ setbg = proc_get_effective_task_policy(task, TASK_POLICY_WATCHERS_BG);
+
+ task->watchapplying = 1;
+ i = 0;
+ queue_iterate(&task->task_watchers, twp, task_watch_t *, tw_links) {
+ threadlist[i].thread = twp->tw_thread;
+ thread_reference(threadlist[i].thread);
+ if (setbg != 0) {
+ twp->tw_importance = twp->tw_thread->importance;
+ threadlist[i].importance = INT_MIN;
+ } else {
+ threadlist[i].importance = twp->tw_importance;
+ }
+ i++;
+ if (i > numwatchers) {
+ break;
+ }
+ }
+
+ task_watch_unlock();
+
+ for (j = 0; j < i; j++) {
+ set_thread_appbg(threadlist[j].thread, setbg, threadlist[j].importance);
+ thread_deallocate(threadlist[j].thread);
+ }
+ kheap_free(KHEAP_TEMP, threadlist, numwatchers * sizeof(thread_watchlist_t));
+
+
+ task_watch_lock();
+ task->watchapplying = 0;
+ thread_wakeup_one(&task->watchapplying);
+ task_watch_unlock();
+}
+
+void
+thead_remove_taskwatch(thread_t thread)
+{
+ task_watch_t * twp;
+ int importance = 0;
+
+ task_watch_lock();
+ if ((twp = thread->taskwatch) != NULL) {
+ thread->taskwatch = NULL;
+ remove_taskwatch_locked(twp->tw_task, twp);
+ }
+ task_watch_unlock();
+ if (twp != NULL) {
+ thread_deallocate(twp->tw_thread);
+ task_deallocate(twp->tw_task);
+ importance = twp->tw_importance;
+ kfree(twp, sizeof(task_watch_t));
+ /* remove the thread and networkbg */
+ set_thread_appbg(thread, 0, importance);
+ }
+}
+
+void
+task_removewatchers(task_t task)
+{
+ queue_head_t queue;
+ task_watch_t *twp;
+
+ task_watch_lock();
+ queue_new_head(&task->task_watchers, &queue, task_watch_t *, tw_links);
+ queue_init(&task->task_watchers);
+
+ queue_iterate(&queue, twp, task_watch_t *, tw_links) {
+ /*
+ * Since the linkage is removed and thead state cleanup is already set up,
+ * remove the refernce from the thread.
+ */
+ twp->tw_thread->taskwatch = NULL; /* removed linkage, clear thread holding ref */
+ }
+
+ task->num_taskwatchers = 0;
+ task_watch_unlock();
+
+ while (!queue_empty(&queue)) {
+ queue_remove_first(&queue, twp, task_watch_t *, tw_links);
+ /* remove thread and network bg */
+ set_thread_appbg(twp->tw_thread, 0, twp->tw_importance);
+ thread_deallocate(twp->tw_thread);
+ task_deallocate(twp->tw_task);
+ kfree(twp, sizeof(task_watch_t));
+ }
+}
+#endif /* CONFIG_TASKWATCH */
/*
* Routines for importance donation/inheritance/boosting
#endif /* IMPORTANCE_INHERITANCE */
}
+void
+task_importance_init_from_parent(__imp_only task_t new_task, __imp_only task_t parent_task)
+{
#if IMPORTANCE_INHERITANCE
+ ipc_importance_task_t new_task_imp = IIT_NULL;
+
+ new_task->task_imp_base = NULL;
+ if (!parent_task) {
+ return;
+ }
+
+ if (task_is_marked_importance_donor(parent_task)) {
+ new_task_imp = ipc_importance_for_task(new_task, FALSE);
+ assert(IIT_NULL != new_task_imp);
+ ipc_importance_task_mark_donor(new_task_imp, TRUE);
+ }
+ if (task_is_marked_live_importance_donor(parent_task)) {
+ if (IIT_NULL == new_task_imp) {
+ new_task_imp = ipc_importance_for_task(new_task, FALSE);
+ }
+ assert(IIT_NULL != new_task_imp);
+ ipc_importance_task_mark_live_donor(new_task_imp, TRUE);
+ }
+ /* Do not inherit 'receiver' on fork, vfexec or true spawn */
+ if (task_is_exec_copy(new_task) &&
+ task_is_marked_importance_receiver(parent_task)) {
+ if (IIT_NULL == new_task_imp) {
+ new_task_imp = ipc_importance_for_task(new_task, FALSE);
+ }
+ assert(IIT_NULL != new_task_imp);
+ ipc_importance_task_mark_receiver(new_task_imp, TRUE);
+ }
+ if (task_is_marked_importance_denap_receiver(parent_task)) {
+ if (IIT_NULL == new_task_imp) {
+ new_task_imp = ipc_importance_for_task(new_task, FALSE);
+ }
+ assert(IIT_NULL != new_task_imp);
+ ipc_importance_task_mark_denap_receiver(new_task_imp, TRUE);
+ }
+ if (IIT_NULL != new_task_imp) {
+ assert(new_task->task_imp_base == new_task_imp);
+ ipc_importance_task_release(new_task_imp);
+ }
+#endif /* IMPORTANCE_INHERITANCE */
+}
+#if IMPORTANCE_INHERITANCE
/*
* Sets the task boost bit to the provided value. Does NOT run the update function.
*
static void
task_set_boost_locked(task_t task, boolean_t boost_active)
{
-#if IMPORTANCE_DEBUG
+#if IMPORTANCE_TRACE
KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE, (IMPORTANCE_CODE(IMP_BOOST, (boost_active ? IMP_BOOSTED : IMP_UNBOOSTED)) | DBG_FUNC_START),
- proc_selfpid(), task_pid(task), trequested_0(task), trequested_1(task), 0);
-#endif
+ proc_selfpid(), task_pid(task), trequested_0(task), trequested_1(task), 0);
+#endif /* IMPORTANCE_TRACE */
task->requested_policy.trp_boosted = boost_active;
-#if IMPORTANCE_DEBUG
- if (boost_active == TRUE){
+#if IMPORTANCE_TRACE
+ if (boost_active == TRUE) {
DTRACE_BOOST2(boost, task_t, task, int, task_pid(task));
} else {
DTRACE_BOOST2(unboost, task_t, task, int, task_pid(task));
}
KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE, (IMPORTANCE_CODE(IMP_BOOST, (boost_active ? IMP_BOOSTED : IMP_UNBOOSTED)) | DBG_FUNC_END),
- proc_selfpid(), task_pid(task),
- trequested_0(task), trequested_1(task), 0);
-#endif
+ proc_selfpid(), task_pid(task),
+ trequested_0(task), trequested_1(task), 0);
+#endif /* IMPORTANCE_TRACE */
}
/*
boolean_t
task_is_importance_donor(task_t task)
{
- if (task->task_imp_base == IIT_NULL)
+ if (task->task_imp_base == IIT_NULL) {
return FALSE;
+ }
return ipc_importance_task_is_donor(task->task_imp_base);
}
boolean_t
task_is_marked_importance_donor(task_t task)
{
- if (task->task_imp_base == IIT_NULL)
+ if (task->task_imp_base == IIT_NULL) {
return FALSE;
+ }
return ipc_importance_task_is_marked_donor(task->task_imp_base);
}
boolean_t
task_is_marked_live_importance_donor(task_t task)
{
- if (task->task_imp_base == IIT_NULL)
+ if (task->task_imp_base == IIT_NULL) {
return FALSE;
+ }
return ipc_importance_task_is_marked_live_donor(task->task_imp_base);
}
boolean_t
task_is_importance_receiver(task_t task)
{
- if (task->task_imp_base == IIT_NULL)
+ if (task->task_imp_base == IIT_NULL) {
return FALSE;
+ }
return ipc_importance_task_is_marked_receiver(task->task_imp_base);
}
boolean_t
task_is_marked_importance_receiver(task_t task)
{
- if (task->task_imp_base == IIT_NULL)
+ if (task->task_imp_base == IIT_NULL) {
return FALSE;
+ }
return ipc_importance_task_is_marked_receiver(task->task_imp_base);
}
boolean_t
task_is_importance_denap_receiver(task_t task)
{
- if (task->task_imp_base == IIT_NULL)
+ if (task->task_imp_base == IIT_NULL) {
return FALSE;
+ }
return ipc_importance_task_is_denap_receiver(task->task_imp_base);
}
boolean_t
task_is_marked_importance_denap_receiver(task_t task)
{
- if (task->task_imp_base == IIT_NULL)
+ if (task->task_imp_base == IIT_NULL) {
return FALSE;
+ }
return ipc_importance_task_is_marked_denap_receiver(task->task_imp_base);
}
boolean_t
task_is_importance_receiver_type(task_t task)
{
- if (task->task_imp_base == IIT_NULL)
+ if (task->task_imp_base == IIT_NULL) {
return FALSE;
- return (task_is_importance_receiver(task) ||
- task_is_importance_denap_receiver(task));
+ }
+ return task_is_importance_receiver(task) ||
+ task_is_importance_denap_receiver(task);
}
/*
{
ipc_importance_task_t task_imp;
kern_return_t ret;
-
+
/* must already have set up an importance */
task_imp = target_task->task_imp_base;
if (IIT_NULL == task_imp) {
return EOVERFLOW;
- }
+ }
ret = ipc_importance_task_hold_legacy_external_assertion(task_imp, count);
return (KERN_SUCCESS != ret) ? ENOTSUP : 0;
}
{
ipc_importance_task_t task_imp;
kern_return_t ret;
-
+
/* must already have set up an importance */
task_imp = target_task->task_imp_base;
if (IIT_NULL == task_imp) {
{
ipc_importance_task_t task_imp;
kern_return_t ret;
-
+
/* must already have set up an importance */
task_imp = target_task->task_imp_base;
if (IIT_NULL == task_imp) {
{
int boost = 0;
- __impdebug_only int released_pid = 0;
- __impdebug_only int pid = task_pid(task);
+ __imptrace_only int released_pid = 0;
+ __imptrace_only int pid = task_pid(task);
ipc_importance_task_t release_imp_task = IIT_NULL;
}
if (IIT_NULL != release_imp_task) {
- if (boost > 0)
+ if (boost > 0) {
ipc_importance_task_drop_internal_assertion(release_imp_task, boost);
+ }
// released_pid = task_pid(release_imp_task); /* TODO: Need ref-safe way to get pid */
ipc_importance_task_release(release_imp_task);
}
-#if IMPORTANCE_DEBUG
+#if IMPORTANCE_TRACE
KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE, (IMPORTANCE_CODE(IMP_WATCHPORT, 0)) | DBG_FUNC_NONE,
- proc_selfpid(), pid, boost, released_pid, 0);
-#endif /* IMPORTANCE_DEBUG */
+ proc_selfpid(), pid, boost, released_pid, 0);
+#endif /* IMPORTANCE_TRACE */
}
*boostp = boost;
if (task == NULL) {
return FALSE;
}
-
- if (pressurelevel == kVMPressureWarning)
- return (task->low_mem_notified_warn ? TRUE : FALSE);
- else if (pressurelevel == kVMPressureCritical)
- return (task->low_mem_notified_critical ? TRUE : FALSE);
- else
+
+ if (pressurelevel == kVMPressureWarning) {
+ return task->low_mem_notified_warn ? TRUE : FALSE;
+ } else if (pressurelevel == kVMPressureCritical) {
+ return task->low_mem_notified_critical ? TRUE : FALSE;
+ } else {
return TRUE;
+ }
}
if (task == NULL) {
return FALSE;
}
-
- if (pressurelevel == kVMPressureWarning)
- return (task->purged_memory_warn ? TRUE : FALSE);
- else if (pressurelevel == kVMPressureCritical)
- return (task->purged_memory_critical ? TRUE : FALSE);
- else
+
+ if (pressurelevel == kVMPressureWarning) {
+ return task->purged_memory_warn ? TRUE : FALSE;
+ } else if (pressurelevel == kVMPressureCritical) {
+ return task->purged_memory_critical ? TRUE : FALSE;
+ } else {
return TRUE;
+ }
}
/*
* Mark the task as notified with memory notification.
- *
+ *
* Condition: task lock should be held while calling this function.
*/
void
if (task == NULL) {
return;
}
-
- if (pressurelevel == kVMPressureWarning)
+
+ if (pressurelevel == kVMPressureWarning) {
task->low_mem_notified_warn = 1;
- else if (pressurelevel == kVMPressureCritical)
+ } else if (pressurelevel == kVMPressureCritical) {
task->low_mem_notified_critical = 1;
+ }
}
if (task == NULL) {
return;
}
-
- if (pressurelevel == kVMPressureWarning)
+
+ if (pressurelevel == kVMPressureWarning) {
task->purged_memory_warn = 1;
- else if (pressurelevel == kVMPressureCritical)
+ } else if (pressurelevel == kVMPressureCritical) {
task->purged_memory_critical = 1;
+ }
}
/*
* Mark the task eligible for low memory notification.
- *
+ *
* Condition: task lock should be held while calling this function.
*/
void
if (task == NULL) {
return;
}
-
- if (pressurelevel == kVMPressureWarning)
+
+ if (pressurelevel == kVMPressureWarning) {
task->low_mem_notified_warn = 0;
- else if (pressurelevel == kVMPressureCritical)
+ } else if (pressurelevel == kVMPressureCritical) {
task->low_mem_notified_critical = 0;
+ }
}
if (task == NULL) {
return;
}
-
+
task->purged_memory_warn = 0;
task->purged_memory_critical = 0;
}
/*
- * Estimate task importance for purging its purgeable memory
+ * Estimate task importance for purging its purgeable memory
* and low memory notification.
- *
+ *
* Importance is calculated in the following order of criteria:
* -Task role : Background vs Foreground
* -Boost status: Not boosted vs Boosted
* -Darwin BG status.
*
- * Returns: Estimated task importance. Less important task will have lower
+ * Returns: Estimated task importance. Less important task will have lower
* estimated importance.
*/
int
return 0;
}
- if (proc_get_effective_task_policy(task, TASK_POLICY_ROLE) == TASK_FOREGROUND_APPLICATION)
- task_importance += TASK_IMPORTANCE_FOREGROUND;
+ if (proc_get_effective_task_policy(task, TASK_POLICY_ROLE) == TASK_FOREGROUND_APPLICATION) {
+ task_importance += TASK_IMPORTANCE_FOREGROUND;
+ }
+
+ if (proc_get_effective_task_policy(task, TASK_POLICY_DARWIN_BG) == 0) {
+ task_importance += TASK_IMPORTANCE_NOTDARWINBG;
+ }
- if (proc_get_effective_task_policy(task, TASK_POLICY_DARWIN_BG) == 0)
- task_importance += TASK_IMPORTANCE_NOTDARWINBG;
-
return task_importance;
}
boolean_t
task_has_assertions(task_t task)
{
- return (task->task_imp_base->iit_assertcnt? TRUE : FALSE);
+ return task->task_imp_base->iit_assertcnt? TRUE : FALSE;
}
kern_return_t
send_resource_violation(typeof(send_cpu_usage_violation) sendfunc,
- task_t violator,
- struct ledger_entry_info *linfo,
- resource_notify_flags_t flags)
+ task_t violator,
+ struct ledger_entry_info *linfo,
+ resource_notify_flags_t flags)
{
#ifndef MACH_BSD
return KERN_NOT_SUPPORTED;
pid = task_pid(violator);
if (flags & kRNFatalLimitFlag) {
kr = proc_pidpathinfo_internal(proc, 0, proc_path,
- sizeof(proc_path), NULL);
+ sizeof(proc_path), NULL);
}
task_unlock(violator);
- if (kr) goto finish;
+ if (kr) {
+ goto finish;
+ }
/* violation time ~ now */
clock_get_calendar_nanotime(&secs, &nsecs);
/* send message */
kr = host_get_special_port(host_priv_self(), HOST_LOCAL_NODE,
- HOST_RESOURCE_NOTIFY_PORT, &dstport);
- if (kr) goto finish;
+ HOST_RESOURCE_NOTIFY_PORT, &dstport);
+ if (kr) {
+ goto finish;
+ }
- /* TH_OPT_HONOR_QLIMIT causes ipc_kmsg_send() to respect the
- * queue limit. It also unsets this flag, but this code also
- * unsets it for clarity and in case that code changes. */
- curthread->options |= TH_OPT_HONOR_QLIMIT;
+ thread_set_honor_qlimit(curthread);
kr = sendfunc(dstport,
- procname, pid, proc_path, timestamp,
- linfo->lei_balance, linfo->lei_last_refill,
- linfo->lei_limit, linfo->lei_refill_period,
- flags);
- curthread->options &= (~TH_OPT_HONOR_QLIMIT);
+ procname, pid, proc_path, timestamp,
+ linfo->lei_balance, linfo->lei_last_refill,
+ linfo->lei_limit, linfo->lei_refill_period,
+ flags);
+ thread_clear_honor_qlimit(curthread);
ipc_port_release_send(dstport);
#ifdef __LP64__
void
trace_resource_violation(uint16_t code,
- struct ledger_entry_info *linfo)
+ struct ledger_entry_info *linfo)
{
KERNEL_DBG_IST_SANE(KDBG_CODE(DBG_MACH, DBG_MACH_RESOURCE, code),
- linfo->lei_balance, linfo->lei_last_refill,
- linfo->lei_limit, linfo->lei_refill_period);
+ linfo->lei_balance, linfo->lei_last_refill,
+ linfo->lei_limit, linfo->lei_refill_period);
}
#else /* K32 */
/* TODO: create/find a trace_two_LLs() for K32 systems */
#define MASK32 0xffffffff
void
trace_resource_violation(uint16_t code,
- struct ledger_entry_info *linfo)
+ struct ledger_entry_info *linfo)
{
int8_t lownibble = (code & 0x3) * 2;
int16_t codeA = (code & 0xffc) | lownibble;
int32_t refill_period_low = linfo->lei_refill_period & MASK32;
KERNEL_DBG_IST_SANE(KDBG_CODE(DBG_MACH, DBG_MACH_RESOURCE, codeA),
- balance_high, balance_low,
- last_refill_high, last_refill_low);
+ balance_high, balance_low,
+ last_refill_high, last_refill_low);
KERNEL_DBG_IST_SANE(KDBG_CODE(DBG_MACH, DBG_MACH_RESOURCE, codeB),
- limit_high, limit_low,
- refill_period_high, refill_period_low);
+ limit_high, limit_low,
+ refill_period_high, refill_period_low);
}
#endif /* K64/K32 */
projects / apple / xnu.git / blobdiff