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[[Category:Kernel objects]]
[[Category:Kernel synchronization objects]]
class [[KThread]] extends [[KSynchronizationObject]];
[[Category:Kernel interrupt events]]
class [[KThread]] extends [[KSynchronizationObject]], [[KTimeableInterruptEvent]], [[KSendableInterruptEvent]] and [[KSchedulableInterruptEvent]];


Size : 0xB0 bytes
Size : 0xB0 bytes
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{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Offset
! Offset
! Type
! Type
! Description
! Description
|-
|-
| 0x0
| 0x0
Line 31: Line 32:
|-
|-
| 0x14
| 0x14
| u32
| [[KTimeableInterruptEvent]]
| Start of 0x10 byte unnamed kernel object in KThread
| Used to suspend threads (*this)
|-
|-
| 0x24
| 0x24
| u32
| [[KSendableInterruptEvent]]
| Start of 0x8 byte unnamed kernel object in KThread
| Interrupt event (*this) sent to terminate a thread, except in the case just below
|-
|-
| 0x2C
| 0x2C
| u32
| [[KSchedulableInterruptEvent]]
| Start of unnamed kernel object of undetermined size in KThread
| Interrupt event (*this) scheduled by the IRQ handler when the thread should terminate (*this)
|-
|-
| 0x34
| 0x34
| u8
| u8
| Used to signal (re)scheduling
| Scheduling mask
|-
|-
| 0x35
| 0x35
| u8
| u8
| Used in syncing
| Set to 1 when a thread is woken up from a svcSendSyncRequest call due to the ServerSession endpoint closing down
|-
|-
| 0x36
| 0x36
| u8
| s8
| ?
| Indicates that the thread shall terminate
|-
|-
| 0x37
| 0x37
| u8
| u8
| Used in syncing
| Indicates there was an error translating the parameters in the command buffer during an IPC call
|-
|-
| 0x38
| 0x38
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| u32
| u32
| Pointer to object the KThread is waiting on- can be a timer, event, session, etc.
| Pointer to object the KThread is waiting on- can be a timer, event, session, etc.
|-
| 0x44
| Result
| Status for object above
|-
|-
| 0x48
| 0x48
| u32
| KObjectMutex*
| Double pointer to KThread of unknown use/creation - used in scheduler
| Locking kernel mutex
|-
|-
| 0x4C
| 0x4C
| u32
| u32
| Arbitration address
| Arbitration address
|-
| 0x50
| KLinkedListNode*
| Pointer to first KLinkedListNode in node list of objects this thread is waiting on
|-
| 0x54
| KLinkedListNode*
| Pointer to last KLinkedListNode in node list of objects this thread is
|-
|-
| 0x5C
| 0x5C
| KMutex*(?)
| [[KMutex|KMutexLinkedList]] *
| Set to KMutex+0x14 in some very specific circumstances
| Set in some very specific circumstances
|-
|-
| 0x60
| 0x60
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| 0x70
| 0x70
| s32
| s32
| Processor that created the thread
| Processor that created the thread (in the sense of "first ran") ; processor the thread is running in
|-
| 0x74
| [[KResourceLimit|KPreemptionTimer]] *
| Points to [[KResourceLimit]]+0x60, which among other things holds the amount of CPU time available in ticks, or NULL
|-
|-
| 0x7C
| 0x7C
| u8
| u8
| ?
| Thread is alive
|-
|-
| 0x7D
| 0x7D
| u8
| u8
| ?
| Thread has been terminated
|-
|-
| 0x7E
| 0x7E
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| 0x94
| 0x94
| void*
| void*
| Ptr to threadlocalstorage
| Ptr to [[Thread Local Storage]]
|-
|-
| 0x98
| 0x98
| void*
| void*
| Ptr to threadlocalstorage in FCRAM via kernel vmem
| Ptr to [[Thread Local Storage]] in FCRAM via kernel vmem
|-
|-
| 0xA0
| 0xA0
| KThread*
| KThreadLinkedListNode
| Previous (virtual address)
| Previous and next scheduled threads
|-
|-
| 0xA4
| 0xA8
| KThread*
| KThreadLinkedList *
| Next (virtual address)
| Pointer to linked list of scheduled threads that has stolen it, or 0 if in normal list
|-
|-
| 0xA8
| 0xAC
| struct { KThread* first; KThread* last; } ptr
| s32
| Pointer to linked list that has stolen it, or 0 if in normal list
| Priority to restore after sleep if suspended, otherwise -1
|}
 
With the following declarations: <code>struct KThreadLinkedList { KThread *first, *last; };</code> and <code>struct KThreadLinkedListNode { KThread *prev, *next; };</code>.
 
=Thread Scheduling Mask=
The thread scheduling mask is made of a low nibble (enum) and a high nibble (bitfield).
 
Low nibble:
 
{| class="wikitable" border="1"
|-
! Value
! Description
|-
| 0
| The thread is not scheduled
|-
| 1
| The thread is scheduled
|-
| 2
| The thread is being terminated
|}
|}


High nibble:
{| class="wikitable" border="1"
|-
! Mask
! Description
|-
| 0
| Nothing special
|-
| 0x8 (bit 3)
| The thread has been debug-locked
|}


A thread is scheduled *if and only if* its (full) scheduling mask is exactly 1. This allows debug-(un)locking of threads to be done transparently.
=Thread Affinity Mask=
=Thread Affinity Mask=


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