rex::kernel::IOCompletionObject Struct Reference

Public Member Functions
void	Queue (const IONotification &notification)
bool	Wait (u64 wait_ticks, IONotification *out_notification)

Public Attributes
std::mutex	notification_lock
std::queue< IONotification >	notifications
std::unique_ptr< rex::platform::Semaphore >	notification_semaphore

Static Public Attributes
static constexpr u32	kMaxNotifications = 1024

Member Function Documentation

Queue()

void rex::kernel::IOCompletionObject::Queue

(

const IONotification &

notification

)

Queues a notification and wakes one waiter.

Wait()

bool rex::kernel::IOCompletionObject::Wait	(	u64	wait_ticks,
		IONotification *	out_notification )

Waits for a notification and dequeues it.

Parameters

wait_ticks	The timeout in 100 nanosecond ticks, negative for relative.
out_notification	Receives the notification when one arrived.

Returns

True when the wait ended because a notification was received.

Member Data Documentation

kMaxNotifications

u32 rex::kernel::IOCompletionObject::kMaxNotifications = 1024

staticconstexpr

Maximum count of the notification semaphore, so the queue holds at most this many entries.

notification_semaphore

std::unique_ptr<rex::platform::Semaphore> rex::kernel::IOCompletionObject::notification_semaphore

Counts the queued notifications, waited on to receive the next one.

notifications

std::queue<IONotification> rex::kernel::IOCompletionObject::notifications

Completed requests in arrival order, one per release of notification_semaphore.

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The documentation for this struct was generated from the following file:

• rex/kernel/object/io_completion_object.h