xnu-2050.9.2.tar.gz

[apple/xnu.git] / osfmk / kern / task.h

diff --git a/osfmk/kern/task.h b/osfmk/kern/task.h
index 9b1e4afb6683c24bc7d5a6dc57cd6d6d4b069f15..7d2c981ce121f40d3c0f1d22f862a42916e787a3 100644 (file)
--- a/osfmk/kern/task.h
+++ b/osfmk/kern/task.h
@@ -1,16 +1,19 @@
 /*
 /*

- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2010 Apple Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in

- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.

  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER


@@ -20,7 +23,7 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 

- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

  */
 /*
  * @OSF_FREE_COPYRIGHT@
  */
 /*
  * @OSF_FREE_COPYRIGHT@


@@ -77,15 +80,20 @@
  * improvements that they make and grant CSL redistribution rights.
  *
  */
  * improvements that they make and grant CSL redistribution rights.
  *
  */

+/*
+ * NOTICE: This file was modified by McAfee Research in 2004 to introduce
+ * support for mandatory and extensible security protections.  This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.
+ * Copyright (c) 2005 SPARTA, Inc.
+ */

 
 #ifndef        _KERN_TASK_H_
 #define _KERN_TASK_H_
 
 #include <kern/kern_types.h>
 #include <mach/mach_types.h>
 
 #ifndef        _KERN_TASK_H_
 #define _KERN_TASK_H_
 
 #include <kern/kern_types.h>
 #include <mach/mach_types.h>

-#include <vm/pmap.h>
-
-#ifdef __APPLE_API_PRIVATE
+#include <sys/cdefs.h>

 
 #ifdef MACH_KERNEL_PRIVATE
 
 
 #ifdef MACH_KERNEL_PRIVATE
 


@@ -96,54 +104,154 @@
 #include <mach/mach_param.h>
 #include <mach/task_info.h>
 #include <mach/exception_types.h>
 #include <mach/mach_param.h>
 #include <mach/task_info.h>
 #include <mach/exception_types.h>

-#include <mach_prof.h>
+#include <mach/vm_statistics.h>

 #include <machine/task.h>
 #include <machine/task.h>

+
+#include <kern/cpu_data.h>

 #include <kern/queue.h>
 #include <kern/exception.h>
 #include <kern/lock.h>
 #include <kern/queue.h>
 #include <kern/exception.h>
 #include <kern/lock.h>

-#include <kern/syscall_emulation.h>
-#include <norma_task.h>
-#include <mach_host.h>
-#include <fast_tas.h>
-#include <task_swapper.h>
-#include <kern/thread_act.h>
-
-typedef struct task {
+#include <security/_label.h>
+#include <ipc/ipc_labelh.h>
+#endif /* MACH_KERNEL_PRIVATE */
+
+#ifdef XNU_KERNEL_PRIVATE
+
+/* defns for task->rsu_controldata */
+#define TASK_POLICY_CPU_RESOURCE_USAGE         0
+#define TASK_POLICY_WIREDMEM_RESOURCE_USAGE    1
+#define TASK_POLICY_VIRTUALMEM_RESOURCE_USAGE  2
+#define TASK_POLICY_DISK_RESOURCE_USAGE                3
+#define TASK_POLICY_NETWORK_RESOURCE_USAGE     4
+#define TASK_POLICY_POWER_RESOURCE_USAGE       5
+
+#define TASK_POLICY_RESOURCE_USAGE_COUNT 6
+
+/*
+ * Process Action and Policy bit definitions 
+
+The bit defns of the policy states 
+64   60    56   52   48   44   40   36   32   28   24   20   16   12   8        0
+|----|-----|----|----|----|----|----|----|----|----|----|----|----|----|--------| 
+|RFU | RFU | PWR| NET| DSK| CPU| VM | WM | LVM| RFU| CPU| NET| GPU| DSK| BGRND  |
+|----|-----|----|----|----|----|----|----|----|----|----|----|----|----|--------| 
+|<-----------   RESOURCE USAGE  -------->|< LOWSRC>|<-HARDWARE ACCESS->|BackGrnd|     
+|----|-----|----|----|----|----|----|----|----|----|----|----|----|----|--------| 
+
+*
+*/
+
+#define TASK_POLICY_BACKGROUND_ATTRIBUTE_NONE          0x00
+#define TASK_POLICY_BACKGROUND_ATTRIBUTE_LOWPRI                0x01
+#define TASK_POLICY_BACKGROUND_ATTRIBUTE_DISKTHROTTLE  0x02
+#define TASK_POLICY_BACKGROUND_ATTRIBUTE_NETTHROTTLE   0x04
+#define TASK_POLICY_BACKGROUND_ATTRIBUTE_NOGPU         0x08
+#if CONFIG_EMBEDDED
+#define TASK_POLICY_BACKGROUND_ATTRIBUTE_ALL           0x0F
+#else /* CONFIG_EMBEDDED */
+#define TASK_POLICY_BACKGROUND_ATTRIBUTE_ALL           0x07
+#endif /* CONFIG_EMBEDDED */
+#define TASK_POLICY_BACKGROUND_ATTRIBUTE_DEFAULT       TASK_POLICY_BACKGROUND_ATTRIBUTE_ALL
+
+/* Hardware disk access attributes, bit different as it should reflect IOPOL_XXX */
+#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_NONE       0x00
+#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_FULLACCESS 0x01
+#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_NORMAL     0x01
+#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_PASSIVE    0x02
+#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_THROTTLE   0x03
+#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_UTILITY    0x04
+#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_DEFAULT    TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_FULLACCESS
+
+/* Hardware GPU access attributes */
+#define TASK_POLICY_HWACCESS_GPU_ATTRIBUTE_NONE                0x00
+#define TASK_POLICY_HWACCESS_GPU_ATTRIBUTE_FULLACCESS  0x00
+#define TASK_POLICY_HWACCESS_GPU_ATTRIBUTE_NOACCESS    0x01
+#define TASK_POLICY_HWACCESS_GPU_ATTRIBUTE_DEFAULT     TASK_POLICY_HWACCESS_GPU_ATTRIBUTE_FULLACCESS
+
+/* Hardware Network access attributes */
+#define TASK_POLICY_HWACCESS_NET_ATTRIBUTE_NONE                0x00
+#define TASK_POLICY_HWACCESS_NET_ATTRIBUTE_FULLACCESS  0x00
+#define TASK_POLICY_HWACCESS_NET_ATTRIBUTE_THROTTLE    0x01
+#define TASK_POLICY_HWACCESS_NET_ATTRIBUTE_DEFAULT     TASK_POLICY_HWACCESS_NET_ATTRIBUTE_FULLACCESS
+
+/* Hardware CPU access attributes */
+#define TASK_POLICY_HWACCESS_CPU_ATTRIBUTE_NONE                0x00
+#define TASK_POLICY_HWACCESS_CPU_ATTRIBUTE_FULLACCESS  0x00
+#define TASK_POLICY_HWACCESS_CPU_ATTRIBUTE_ONE         0x01
+#define TASK_POLICY_HWACCESS_CPU_ATTRIBUTE_LLCACHE     0x02
+#define TASK_POLICY_HWACCESS_CPU_ATTRIBUTE_DEFAULT     TASK_POLICY_HWACCESS_CPU_ATTRIBUTE_FULLACCESS
+
+/* Resource usage/low resource attributes */
+#define TASK_POLICY_RESOURCE_ATTRIBUTE_NONE            0x00
+#define TASK_POLICY_RESOURCE_ATTRIBUTE_THROTTLE                0x01
+#define TASK_POLICY_RESOURCE_ATTRIBUTE_SUSPEND                 0x02
+#define TASK_POLICY_RESOURCE_ATTRIBUTE_TERMINATE       0x03
+#define TASK_POLICY_RESOURCE_ATTRIBUTE_NOTIFY_KQ       0x04
+#define TASK_POLICY_RESOURCE_ATTRIBUTE_NOTIFY_EXC      0x05
+#define TASK_POLICY_RESOURCE_ATTRIBUTE_DEFAULT         TASK_POLICY_RESOURCE_ATTRIBUTE_NONE
+
+#endif /* XNU_KERNEL_PRIVATE */
+
+#ifdef MACH_KERNEL_PRIVATE
+
+typedef struct process_policy {
+       uint64_t  apptype:4,
+                 rfu1:4,
+                 ru_power:4,   /* Resource Usage Power */
+                 ru_net:4,     /* Resource Usage Network */
+                 ru_disk:4,    /* Resource Usage Disk */
+                 ru_cpu:4,     /* Resource Usage CPU */
+                 ru_virtmem:4, /* Resource Usage VM */
+                 ru_wiredmem:4,/* Resource Usage Wired Memory */
+                 low_vm:4,     /* Low Virtual Memory */
+                 rfu2:4,
+                 hw_cpu:4,     /* HW Access to CPU */
+                 hw_net:4,     /* HW Access to Network */
+                 hw_gpu:4,     /* HW Access to GPU */
+                 hw_disk:4,    /* HW Access to Disk */
+                 hw_bg:8;      /* Darwin Background Policy */
+} process_policy_t;
+
+#if CONFIG_EMBEDDED
+
+typedef struct task_watcher {
+       queue_chain_t   tw_links;               /* queueing of threads */
+       task_t          tw_task;        /* task that is being watched */
+       thread_t        tw_thread;      /* thread that is watching the watch_task */
+       int             tw_state;       /* the current app state of the thread */
+       int             tw_importance;  /* importance prior to backgrounding */
+} task_watch_t;
+
+extern lck_mtx_t task_watch_mtx;
+
+#endif /* CONFIG_EMBEDDED */
+
+#include <kern/thread.h>
+
+extern process_policy_t default_task_proc_policy;      /* init value for the process policy attributes */
+extern process_policy_t default_task_null_policy;      /* none as the value for the process policy attributes */
+
+struct task {

        /* Synchronization/destruction information */
        /* Synchronization/destruction information */

-       decl_mutex_data(,lock)          /* Task's lock */
-       int             ref_count;      /* Number of references to me */
+       decl_lck_mtx_data(,lock)                /* Task's lock */
+       uint32_t        ref_count;      /* Number of references to me */

        boolean_t       active;         /* Task has not been terminated */
        boolean_t       active;         /* Task has not been terminated */

-       boolean_t       kernel_loaded;  /* Created with kernel_task_create() */
+       boolean_t       halting;        /* Task is being halted */

 
        /* Miscellaneous */
        vm_map_t        map;            /* Address space description */
 
        /* Miscellaneous */
        vm_map_t        map;            /* Address space description */

-       queue_chain_t   pset_tasks;     /* list of tasks assigned to pset */
+       queue_chain_t   tasks;  /* global list of tasks */

        void            *user_data;     /* Arbitrary data settable via IPC */
        void            *user_data;     /* Arbitrary data settable via IPC */

-       int             suspend_count;  /* Internal scheduling only */
-
-#if    TASK_SWAPPER
-       /* Task swapper data */
-       unsigned short  swap_state;     /* swap state (e.g. IN/OUT) */
-       unsigned short  swap_flags;     /* swap flags (e.g. MAKE_UNSWAPP) */
-       unsigned int    swap_stamp;     /* when last swapped */
-       unsigned long   swap_rss;       /* size (pages) when last swapped */
-       int             swap_ast_waiting; /* number of threads that have not */
-                                         /* reached a clean point and halted */
-       int             swap_nswap;     /* number of times this task swapped */
-       queue_chain_t   swapped_tasks;  /* list of non-resident tasks */
-#endif /* TASK_SWAPPER */
-
-       /* Activations in this task */
-       queue_head_t    thr_acts;       /* list of thread_activations */
-       int             thr_act_count;
-       int             res_act_count;
-       int             active_act_count; /* have not terminate_self yet */
-
-       processor_set_t processor_set;  /* processor set for new threads */
-#if    MACH_HOST
-       boolean_t       may_assign;     /* can assigned pset be changed? */
-       boolean_t       assign_active;  /* waiting for may_assign */
-#endif /* MACH_HOST */
+
+       /* Threads in this task */
+       queue_head_t            threads;
+
+       processor_set_t         pset_hint;
+       struct affinity_space   *affinity_space;
+
+       int                     thread_count;
+       uint32_t                active_thread_count;
+       int                     suspend_count;  /* Internal scheduling only */

 
        /* User-visible scheduling information */
        integer_t               user_stop_count;        /* outstanding stops */
 
        /* User-visible scheduling information */
        integer_t               user_stop_count;        /* outstanding stops */


@@ -153,26 +261,29 @@ typedef struct task {
        integer_t               priority;                       /* base priority for threads */
        integer_t               max_priority;           /* maximum priority for threads */
 
        integer_t               priority;                       /* base priority for threads */
        integer_t               max_priority;           /* maximum priority for threads */
 

-       /* Task security token */
+       /* Task security and audit tokens */

        security_token_t sec_token;
        security_token_t sec_token;

+       audit_token_t   audit_token;

         
        /* Statistics */
         
        /* Statistics */

-       time_value_t    total_user_time;        /* user time for dead threads */
-       time_value_t    total_system_time;      /* system time for dead threads */
+       uint64_t                total_user_time;        /* terminated threads only */
+       uint64_t                total_system_time;

 
 

-#if    MACH_PROF
-       boolean_t       task_profiled;  /* is task being profiled ? */
-       struct prof_data *profil_buffer;/* profile struct if so */
-#endif /* MACH_PROF */
+       /* Virtual timers */
+       uint32_t                vtimers;

 
        /* IPC structures */
 
        /* IPC structures */

-       decl_mutex_data(,itk_lock_data)
+       decl_lck_mtx_data(,itk_lock_data)

        struct ipc_port *itk_self;      /* not a right, doesn't hold ref */
        struct ipc_port *itk_self;      /* not a right, doesn't hold ref */

+       struct ipc_port *itk_nself;     /* not a right, doesn't hold ref */

        struct ipc_port *itk_sself;     /* a send right */
        struct exception_action exc_actions[EXC_TYPES_COUNT];
                                        /* a send right each valid element  */
        struct ipc_port *itk_host;      /* a send right */
        struct ipc_port *itk_bootstrap; /* a send right */
        struct ipc_port *itk_sself;     /* a send right */
        struct exception_action exc_actions[EXC_TYPES_COUNT];
                                        /* a send right each valid element  */
        struct ipc_port *itk_host;      /* a send right */
        struct ipc_port *itk_bootstrap; /* a send right */

+       struct ipc_port *itk_seatbelt;  /* a send right */
+       struct ipc_port *itk_gssd;      /* yet another send right */
+       struct ipc_port *itk_task_access; /* and another send right */ 

        struct ipc_port *itk_registered[TASK_PORT_REGISTER_MAX];
                                        /* all send rights */
 
        struct ipc_port *itk_registered[TASK_PORT_REGISTER_MAX];
                                        /* all send rights */
 


@@ -184,21 +295,13 @@ typedef struct task {
        int             semaphores_owned;       /* number of semaphores owned */
        int             lock_sets_owned;        /* number of lock sets owned  */
 
        int             semaphores_owned;       /* number of semaphores owned */
        int             lock_sets_owned;        /* number of lock sets owned  */
 

-       /* User space system call emulation support */
-       struct  eml_dispatch    *eml_dispatch;
+       ledger_t        ledger;
+
+       unsigned int    priv_flags;                     /* privilege resource flags */
+#define VM_BACKING_STORE_PRIV  0x1

 
 

-        /* Ledgers */
-       struct ipc_port *wired_ledger_port;
-       struct ipc_port *paged_ledger_port;
-        
-#if    NORMA_TASK
-       long            child_node;     /* if != -1, node for new children */
-#endif /* NORMA_TASK */
-#if    FAST_TAS
-       vm_offset_t     fast_tas_base;
-       vm_offset_t     fast_tas_end;
-#endif /* FAST_TAS */

        MACHINE_TASK
        MACHINE_TASK

+        

        integer_t faults;              /* faults counter */
         integer_t pageins;             /* pageins counter */
         integer_t cow_faults;          /* copy on write fault counter */
        integer_t faults;              /* faults counter */
         integer_t pageins;             /* pageins counter */
         integer_t cow_faults;          /* copy on write fault counter */


@@ -206,90 +309,378 @@ typedef struct task {
         integer_t messages_received;   /* messages received counter */
         integer_t syscalls_mach;       /* mach system call counter */
         integer_t syscalls_unix;       /* unix system call counter */
         integer_t messages_received;   /* messages received counter */
         integer_t syscalls_mach;       /* mach system call counter */
         integer_t syscalls_unix;       /* unix system call counter */

-        integer_t csw;                 /* context switch counter */
+               uint32_t  c_switch;                        /* total context switches */
+               uint32_t  p_switch;                        /* total processor switches */
+               uint32_t  ps_switch;               /* total pset switches */
+
+       zinfo_usage_t tkm_zinfo;        /* per-task, per-zone usage statistics */
+

 #ifdef  MACH_BSD 
        void *bsd_info;
 #endif  
 #ifdef  MACH_BSD 
        void *bsd_info;
 #endif  

-       vm_offset_t     system_shared_region;
-       vm_offset_t     dynamic_working_set;
+       struct vm_shared_region         *shared_region;

        uint32_t taskFeatures[2];               /* Special feature for this task */
 #define tf64BitAddr    0x80000000              /* Task has 64-bit addressing */
 #define tf64BitData    0x40000000              /* Task has 64-bit data registers */
        uint32_t taskFeatures[2];               /* Special feature for this task */
 #define tf64BitAddr    0x80000000              /* Task has 64-bit addressing */
 #define tf64BitData    0x40000000              /* Task has 64-bit data registers */

-} Task;
+#define task_has_64BitAddr(task)       \
+        (((task)->taskFeatures[0] & tf64BitAddr) != 0)
+#define task_set_64BitAddr(task)       \
+        ((task)->taskFeatures[0] |= tf64BitAddr)
+#define task_clear_64BitAddr(task)     \
+        ((task)->taskFeatures[0] &= ~tf64BitAddr)
+
+       mach_vm_address_t       all_image_info_addr; /* dyld __all_image_info     */
+       mach_vm_size_t          all_image_info_size; /* section location and size */
+#if CONFIG_MACF_MACH
+       ipc_labelh_t label;
+#endif

 
 

-#define task_lock(task)                mutex_lock(&(task)->lock)
-#define task_lock_try(task)    mutex_try(&(task)->lock)
-#define task_unlock(task)      mutex_unlock(&(task)->lock)
+#if CONFIG_COUNTERS
+#define TASK_PMC_FLAG 0x1      /* Bit in "t_chud" signifying PMC interest */
+       uint32_t t_chud;                /* CHUD flags, used for Shark */
+#endif

 
 

-#define        itk_lock_init(task)     mutex_init(&(task)->itk_lock_data, \
-                                          ETAP_THREAD_TASK_ITK)
-#define        itk_lock(task)          mutex_lock(&(task)->itk_lock_data)
-#define        itk_unlock(task)        mutex_unlock(&(task)->itk_lock_data)
+       boolean_t pidsuspended; /* pid_suspend called; no threads can execute */
+       boolean_t frozen;       /* frozen; private resident pages committed to swap */
+       process_policy_t ext_appliedstate;      /* externally applied actions */
+       process_policy_t ext_policystate;       /* externally defined process policy states*/
+       process_policy_t appliedstate;          /* self applied acions */
+       process_policy_t policystate;           /* process wide policy states */
+       uint8_t  rusage_cpu_flags;
+       uint8_t  rusage_cpu_percentage;         /* Task-wide CPU limit percentage */
+       uint64_t rusage_cpu_interval;           /* Task-wide CPU limit interval */
+       uint8_t  rusage_cpu_perthr_percentage;  /* Per-thread CPU limit percentage */
+       uint64_t rusage_cpu_perthr_interval;    /* Per-thread CPU limit interval */
+       uint64_t rusage_cpu_deadline;
+       thread_call_t rusage_cpu_callt;
+#if CONFIG_EMBEDDED
+       uint32_t        appstate;               /* the current appstate */
+       queue_head_t    task_watchers;          /* app state watcher threads */
+       int     num_taskwatchers;
+       int             watchapplying;
+#endif /* CONFIG_EMBEDDED */
+
+       vm_extmod_statistics_data_t     extmod_statistics;
+       natural_t       proc_terminate; /* the process is marked for proc_terminate */
+};
+
+#define task_lock(task)                lck_mtx_lock(&(task)->lock)
+#define task_lock_try(task)    lck_mtx_try_lock(&(task)->lock)
+#define task_unlock(task)      lck_mtx_unlock(&(task)->lock)
+
+#if CONFIG_MACF_MACH
+#define maclabel label->lh_label
+
+#define tasklabel_lock(task)   lh_lock((task)->label)
+#define tasklabel_unlock(task) lh_unlock((task)->label)
+
+extern void tasklabel_lock2(task_t a, task_t b);
+extern void tasklabel_unlock2(task_t a, task_t b);
+#endif /* MAC_MACH */
+
+#define        itk_lock_init(task)     lck_mtx_init(&(task)->itk_lock_data, &ipc_lck_grp, &ipc_lck_attr)
+#define        itk_lock_destroy(task)  lck_mtx_destroy(&(task)->itk_lock_data, &ipc_lck_grp)
+#define        itk_lock(task)          lck_mtx_lock(&(task)->itk_lock_data)
+#define        itk_unlock(task)        lck_mtx_unlock(&(task)->itk_lock_data)
+
+#define task_reference_internal(task)          \
+                       (void)hw_atomic_add(&(task)->ref_count, 1)
+
+#define task_deallocate_internal(task)         \
+                       hw_atomic_sub(&(task)->ref_count, 1)
+
+#define task_reference(task)                                   \
+MACRO_BEGIN                                                                            \
+       if ((task) != TASK_NULL)                                        \
+               task_reference_internal(task);                  \
+MACRO_END
+
+extern kern_return_t   kernel_task_create(
+                                                       task_t                  task,
+                                                       vm_offset_t             map_base,
+                                                       vm_size_t               map_size,
+                                                       task_t                  *child);

 
 

-#define task_reference_locked(task) ((task)->ref_count++)
+/* Initialize task module */
+extern void            task_init(void) __attribute__((section("__TEXT, initcode")));

 
 

-/*
- *     Internal only routines
- */
+#define        current_task_fast()     (current_thread()->task)
+#define current_task()         current_task_fast()

 
 

-/* Initialize task module */
-extern void            task_init(void);
+extern lck_attr_t      task_lck_attr;
+extern lck_grp_t       task_lck_grp;

 
 

-/* task create */
-extern kern_return_t   task_create_local(
-                               task_t          parent_task,
-                               boolean_t       inherit_memory,
-                               boolean_t       kernel_loaded,
-                               task_t          *child_task);   /* OUT */
+#else  /* MACH_KERNEL_PRIVATE */

 
 

-extern void            consider_task_collect(void);
+__BEGIN_DECLS

 
 

-#define        current_task_fast()     (current_act_fast()->task)
-#define current_task()         current_task_fast()
+extern task_t  current_task(void);
+
+extern void            task_reference(task_t   task);
+
+__END_DECLS

 
 #endif /* MACH_KERNEL_PRIVATE */
 
 
 #endif /* MACH_KERNEL_PRIVATE */
 

-extern task_t          kernel_task;
+__BEGIN_DECLS
+
+#ifdef XNU_KERNEL_PRIVATE

 
 

-/* Temporarily hold all threads in a task */
+/* Hold all threads in a task */

 extern kern_return_t   task_hold(
 extern kern_return_t   task_hold(

-                               task_t  task);
+                                                       task_t          task);

 
 

-/* Release temporary hold on all threads in a task */
-extern kern_return_t   task_release(
-                               task_t  task);
+/* Wait for task to stop running, either just to get off CPU or to cease being runnable */
+extern kern_return_t   task_wait(
+                                                       task_t          task,
+                                                       boolean_t       until_not_runnable);

 
 

-/* Get a task prepared for major changes */
-extern kern_return_t   task_halt(
-                               task_t  task);
+/* Release hold on all threads in a task */
+extern kern_return_t   task_release(
+                                                       task_t          task);
+
+/* Suspends a task by placing a hold on its threads */
+extern kern_return_t    task_pidsuspend(
+                                                       task_t          task);
+extern kern_return_t    task_pidsuspend_locked(
+                                                       task_t          task);
+
+/* Resumes a previously paused task */
+extern kern_return_t    task_pidresume(
+                                                       task_t          task);
+
+#if CONFIG_FREEZE
+
+/* Freeze a task's resident pages */
+extern kern_return_t   task_freeze(
+                                                       task_t          task,
+                                                       uint32_t        *purgeable_count,
+                                                       uint32_t        *wired_count,
+                                                       uint32_t        *clean_count,
+                                                       uint32_t        *dirty_count,
+                                                       uint32_t        dirty_budget,
+                                                       boolean_t       *shared,
+                                                       boolean_t       walk_only);
+
+/* Thaw a currently frozen task */
+extern kern_return_t   task_thaw(
+                                                       task_t          task);
+
+#endif /* CONFIG_FREEZE */
+
+/* Halt all other threads in the current task */
+extern kern_return_t   task_start_halt(
+                                                       task_t          task);
+
+/* Wait for other threads to halt and free halting task resources */
+extern void            task_complete_halt(
+                                                       task_t          task);
+
+extern kern_return_t   task_terminate_internal(
+                                                       task_t                  task);
+
+extern kern_return_t   task_create_internal(
+                                                       task_t          parent_task,
+                                                       boolean_t       inherit_memory,
+                                                       boolean_t       is_64bit,
+                                                       task_t          *child_task);   /* OUT */

 
 

-#if defined(MACH_KERNEL_PRIVATE) || defined(BSD_BUILD)

 extern kern_return_t   task_importance(
                                                        task_t                  task,
                                                        integer_t               importance);
 extern kern_return_t   task_importance(
                                                        task_t                  task,
                                                        integer_t               importance);

-#endif
+
+extern void            task_vtimer_set(
+                                       task_t          task,
+                                       integer_t       which);
+
+extern void            task_vtimer_clear(
+                                       task_t          task,
+                                       integer_t       which);
+
+extern void            task_vtimer_update(
+                                       task_t          task,
+                                       integer_t       which,
+                                       uint32_t        *microsecs);
+
+#define        TASK_VTIMER_USER                0x01
+#define        TASK_VTIMER_PROF                0x02
+#define        TASK_VTIMER_RLIM                0x04
+
+extern void            task_set_64bit(
+                                       task_t          task,
+                                       boolean_t       is64bit);
+
+extern void            task_backing_store_privileged(
+                                       task_t          task);
+
+extern void            task_set_dyld_info(
+                                       task_t          task,
+                                       mach_vm_address_t addr,
+                                       mach_vm_size_t size);
+
+/* Get number of activations in a task */
+extern int             get_task_numacts(
+                                       task_t          task);
+
+extern int get_task_numactivethreads(task_t task);

 
 /* JMM - should just be temporary (implementation in bsd_kern still) */
 
 /* JMM - should just be temporary (implementation in bsd_kern still) */

-extern void    *get_bsdtask_info(task_t);

 extern void    set_bsdtask_info(task_t,void *);
 extern void    set_bsdtask_info(task_t,void *);

-extern vm_map_t get_task_map(task_t);
-extern vm_map_t        swap_task_map(task_t, vm_map_t);
+extern vm_map_t get_task_map_reference(task_t);
+extern vm_map_t        swap_task_map(task_t, thread_t, vm_map_t, boolean_t);

 extern pmap_t  get_task_pmap(task_t);
 extern pmap_t  get_task_pmap(task_t);

+extern uint64_t        get_task_resident_size(task_t);
+
+extern boolean_t       is_kerneltask(task_t task);
+
+extern kern_return_t check_actforsig(task_t task, thread_t thread, int setast);
+
+extern kern_return_t machine_task_get_state(
+                                       task_t task, 
+                                       int flavor, 
+                                       thread_state_t state, 
+                                       mach_msg_type_number_t *state_count);
+
+extern kern_return_t machine_task_set_state(
+                                       task_t task, 
+                                       int flavor, 
+                                       thread_state_t state, 
+                                       mach_msg_type_number_t state_count);
+
+extern void machine_task_terminate(task_t task);
+
+struct _task_ledger_indices {
+       int cpu_time;
+       int tkm_private;
+       int tkm_shared;
+       int phys_mem;
+       int wired_mem;
+};
+extern struct _task_ledger_indices task_ledgers;
+
+int proc_get_task_bg_policy(task_t task);
+int proc_get_thread_bg_policy(task_t task, uint64_t tid);
+int proc_get_self_isbackground(void);
+int proc_get_selfthread_isbackground(void);
+
+int proc_get_darwinbgstate(task_t, uint32_t *);
+int proc_set_bgtaskpolicy(task_t task, int intval);
+int proc_set_and_apply_bgtaskpolicy(task_t task, int intval);
+int proc_set_bgthreadpolicy(task_t task, uint64_t tid, int val);
+int proc_set_and_apply_bgthreadpolicy(task_t task, uint64_t tid, int val);
+
+int proc_add_bgtaskpolicy(task_t task, int val);
+int proc_add_bgthreadpolicy(task_t task, uint64_t tid, int val);
+int proc_remove_bgtaskpolicy(task_t task, int policy);
+int proc_remove_bgthreadpolicy(task_t task, uint64_t tid, int val);
+
+int proc_apply_bgtaskpolicy(task_t task);
+int proc_apply_bgtaskpolicy_external(task_t task);
+int proc_apply_bgthreadpolicy(task_t task, uint64_t tid);
+int proc_apply_bgtask_selfpolicy(void);
+int proc_apply_bgthread_selfpolicy(void);
+int proc_apply_workq_bgthreadpolicy(thread_t);
+
+int proc_restore_bgtaskpolicy(task_t task);
+int proc_restore_bgthreadpolicy(task_t task, uint64_t tid);
+int proc_restore_bgthread_selfpolicy(void);
+int proc_restore_workq_bgthreadpolicy(thread_t);
+void proc_task_remove_throttle(task_t task);
+
+/* hw access routines */
+int proc_apply_task_diskacc(task_t task, int policy);
+int proc_apply_thread_diskacc(task_t task, uint64_t tid, int policy);
+int proc_apply_thread_selfdiskacc(int policy);
+int proc_get_task_disacc(task_t task);
+int proc_get_task_selfdiskacc(void);
+int proc_get_diskacc(thread_t thread);
+int proc_get_thread_selfdiskacc(void);
+int proc_denyinherit_policy(task_t task);
+int proc_denyselfset_policy(task_t task);
+
+int proc_get_task_selfgpuacc_deny(void);
+int proc_apply_task_gpuacc(task_t task, int prio);
+
+int proc_get_task_ruse_cpu(task_t task, uint32_t * policyp, uint32_t * percentagep, uint64_t * intervalp, uint64_t * deadlinep);
+int proc_set_task_ruse_cpu(task_t task, uint32_t policy, uint32_t percentage, uint64_t interval, uint64_t deadline);
+int proc_clear_task_ruse_cpu(task_t task);
+thread_t task_findtid(task_t, uint64_t);
+
+#define TASK_RUSECPU_FLAGS_PROC_LIMIT  0x1
+#define TASK_RUSECPU_FLAGS_PERTHR_LIMIT        0x2
+#define TASK_RUSECPU_FLAGS_DEADLINE            0x4
+
+#define PROC_POLICY_OSX_APPTYPE_NONE           0
+#if CONFIG_EMBEDDED
+#define PROC_POLICY_IOS_RESV1_APPTYPE          1
+#define PROC_POLICY_IOS_APPLE_DAEMON           2
+#define PROC_POLICY_IOS_APPTYPE                        3
+#define PROC_POLICY_IOS_NONUITYPE              4
+#else
+#define PROC_POLICY_OSX_APPTYPE_TAL            1
+#define PROC_POLICY_OSX_APPTYPE_WIDGET         2
+#define PROC_POLICY_OSX_APPTYPE_DBCLIENT       2       /* Not a bug, just rename of widget */
+#endif

 
 

-extern boolean_t       task_reference_try(task_t task);
+void proc_set_task_apptype(task_t task, int type, thread_t thread);
+int proc_disable_task_apptype(task_t task, int policy_subtype);
+int proc_enable_task_apptype(task_t task, int policy_subtype);

 
 

-#endif /* __APPLE_API_PRIVATE */
+#if CONFIG_EMBEDDED
+extern int proc_setthread_saved_importance(thread_t thread, int importance);
+#endif

 
 

-#if            !defined(MACH_KERNEL_PRIVATE)
+/* BSD call back functions */
+extern int proc_apply_resource_actions(void * p, int type, int action);
+extern int proc_restore_resource_actions(void * p, int type, int action);
+extern int task_restore_resource_actions(task_t task, int type);

 
 

-extern task_t  current_task(void);
+extern void proc_apply_task_networkbg(void * bsd_info);
+extern void proc_restore_task_networkbg(void * bsd_info);
+extern void proc_set_task_networkbg(void * bsd_info, int setbg);
+extern int task_clear_cpuusage(task_t task);

 
 

-#endif /* MACH_KERNEL_TASK */
+#if CONFIG_EMBEDDED
+#define TASK_APPSTATE_NONE              0
+#define TASK_APPSTATE_ACTIVE            1
+#define TASK_APPSTATE_BACKGROUND        2
+#define TASK_APPSTATE_NONUI             3
+#define TASK_APPSTATE_INACTIVE          4

 
 

-/* Take reference on task (make sure it doesn't go away) */
-extern void            task_reference(task_t   task);
+extern int proc_lf_getappstate(task_t task);
+extern int proc_lf_setappstate(task_t task, int state);
+extern int proc_lf_pidbind(task_t curtask, uint64_t tid, task_t target_task, int bind);
+extern void thead_remove_taskwatch(thread_t thread);
+extern void task_removewatchers(task_t task);
+#endif /* CONFIG_EMBEDDED */
+
+#endif /* XNU_KERNEL_PRIVATE */
+
+#ifdef KERNEL_PRIVATE
+
+extern void    *get_bsdtask_info(task_t);
+extern void    *get_bsdthreadtask_info(thread_t);
+extern vm_map_t get_task_map(task_t);
+extern ledger_t        get_task_ledger(task_t);
+
+extern boolean_t get_task_pidsuspended(task_t);
+extern boolean_t get_task_frozen(task_t);
+
+/* Convert from a task to a port */
+extern ipc_port_t convert_task_to_port(task_t);
+
+/* Convert from a task name to a port */
+extern ipc_port_t convert_task_name_to_port(task_name_t);
+
+#endif /* KERNEL_PRIVATE */
+
+extern task_t  kernel_task;
+
+extern void            task_deallocate(
+                                       task_t          task);

 
 

-/* Remove reference to task */
-extern void            task_deallocate(task_t  task);
+extern void            task_name_deallocate(
+                                       task_name_t             task_name);
+__END_DECLS

 
 #endif /* _KERN_TASK_H_ */
 
 #endif /* _KERN_TASK_H_ */