class OwnedWaitQueuePool

Defined at line 33 of file ../../zircon/kernel/include/kernel/owned_wait_queue_pool.h

Global pool for OwnedWaitQueue objects.

Public Methods

void OwnedWaitQueuePool ()

Defined at line 35 of file ../../zircon/kernel/include/kernel/owned_wait_queue_pool.h

void ~OwnedWaitQueuePool ()

Defined at line 40 of file ../../zircon/kernel/include/kernel/owned_wait_queue_pool.h

void OwnedWaitQueuePool (const OwnedWaitQueuePool & )

Defined at line 42 of file ../../zircon/kernel/include/kernel/owned_wait_queue_pool.h

void OwnedWaitQueuePool (OwnedWaitQueuePool && )

Defined at line 42 of file ../../zircon/kernel/include/kernel/owned_wait_queue_pool.h

OwnedWaitQueuePool & operator= (const OwnedWaitQueuePool & )

Defined at line 42 of file ../../zircon/kernel/include/kernel/owned_wait_queue_pool.h

OwnedWaitQueuePool & operator= (OwnedWaitQueuePool && )

Defined at line 42 of file ../../zircon/kernel/include/kernel/owned_wait_queue_pool.h

OwnedWaitQueuePool & Get ()

Returns the global singleton instance.

Defined at line 45 of file ../../zircon/kernel/include/kernel/owned_wait_queue_pool.h

zx_status_t Grow ()

Increases the pool size by one if the number of active threads exceeds the current pool

capacity.

May block the caller.

Must be called during Thread construction to ensure pool invariants are upheld.

Returns ZX_ERR_NO_MEMORY if allocation fails.

Defined at line 55 of file ../../zircon/kernel/include/kernel/owned_wait_queue_pool.h

void Shrink ()

Decreases the active thread count.

Must be called during Thread destruction or resource cleanup.

Note that this does not currently shrink the size of the pool, it shrinks the number of

active threads tracked by the pool. This allows new threads in the future to reuse already

allocated OwnedWaitQueue's.

Defined at line 64 of file ../../zircon/kernel/include/kernel/owned_wait_queue_pool.h

void RecycleLocked (OwnedWaitQueue * queue)

Recycle a queue back to the pool.

The queue must be in a clean state (no owner, no waiters).

Defined at line 69 of file ../../zircon/kernel/include/kernel/owned_wait_queue_pool.h

OwnedWaitQueue * BorrowLocked ()

Borrow a queue from the pool.

Defined at line 74 of file ../../zircon/kernel/include/kernel/owned_wait_queue_pool.h

int64_t GetExcessCapacityForTest ()

Returns the value of the excess capacity OWQ kcounter.

Defined at line 79 of file ../../zircon/kernel/include/kernel/owned_wait_queue_pool.h