Crate libasync_sys 

Structs

async_dispatcher

async_guest_bell_trap

Holds context for a bell trap and its handler.

async_irq

Similar to async_wait, but holds state for an interrupt.

async_ops

async_ops_v1

Operations supported by |ASYNC_OPS_V1|.

async_ops_v2

async_ops_v3

async_ops_v4

async_paged_vmo

Holds content for a paged request packet receiver and its handler.

async_receiver

Holds content for a packet receiver and its handler.

async_sequence_id

A dispatcher-specific sequence identifier, which identifies a set of actions with a total ordering of execution: each subsequent action will always observe side-effects from previous actions, if the thread(s) performing those actions have the same sequence identifier.

async_state_t

Private state owned by the asynchronous dispatcher. This allows the dispatcher to associate a small amount of state with pending asynchronous operations without having to allocate additional heap storage of its own.

async_task

Holds context for a task and its handler.

async_wait

Holds context for an asynchronous wait operation and its handler.

Constants

ASYNC_OPS_V1

ASYNC_OPS_V2

ASYNC_OPS_V3

ASYNC_OPS_V4

Functions

async_acquire_shared_ref^⚠

If supported, acquires a shared dispatcher reference for this dispatcher.

async_begin_wait^⚠

Begins asynchronously waiting for an object to receive one or more signals specified in |wait|. Invokes the handler when the wait completes.

async_bind_irq^⚠

Begins asynchronously waiting on an IRQ specified in |irq|. Invokes the handler when the wait completes. The irq’s handler will be invoked once for each interrupt packet received, until the irq object is unbound with |async_unbind_irq| or the dispatcher is shut down. When the dispatcher is shutting down (being destroyed), if the irq has not been unbound, the handlers of all remaining irqs will be invoked with a status of |ZX_ERR_CANCELED|.

async_cancel_task^⚠

Cancels the task associated with |task|.

async_cancel_wait^⚠

Cancels the wait associated with |wait|.

async_check_sequence_id^⚠

Checks that the the dispatcher-specific sequence identifier of the currently executing task is equal to |sequence_id|.

async_create_paged_vmo^⚠

Create a pager owned VMO.

async_detach_paged_vmo^⚠

Detach ownership of VMO from pager.

async_get_default_dispatcher

Gets the currently active async dispatcher for the current thread, if set.

async_get_sequence_id^⚠

Gets the dispatcher-specific sequence identifier of the currently executing task.

async_now^⚠

Returns the current time in the dispatcher’s timebase. For most loops, this is generally obtained from |ZX_CLOCK_MONOTONIC| but certain loops may use a different tiembase, notably for testing.

async_post_task^⚠

Posts a task to run on or after its deadline following all posted tasks with lesser or equal deadlines.

async_queue_packet^⚠

Enqueues a packet of data for delivery to a receiver.

async_release_shared_ref^⚠

Releases a shared dispatcher reference for this dispatcher.

async_set_default_dispatcher^⚠

Sets the current thread’s default asynchronous dispatcher interface. May be set to |NULL| if this thread doesn’t have a default dispatcher.

async_set_guest_bell_trap^⚠

Sets a bell trap in the guest to be handled asynchronously via a handler.

async_unbind_irq^⚠

Unbinds the IRQ associated with |irq|.

Type Aliases

async_dispatcher_t

Dispatcher interface for performing asynchronous operations. There may be multiple implementations of this interface.

async_guest_bell_trap_handler_t

Handles an asynchronous trap access.

async_guest_bell_trap_t

Holds context for a bell trap and its handler.

async_irq_handler_t

Handles interrupt.

async_irq_t

Similar to async_wait, but holds state for an interrupt.

async_ops_t

async_ops_version_t

Asynchronous dispatcher interface.

async_paged_vmo_handler_t

Handles port packets containing page requests.

async_paged_vmo_t

Holds content for a paged request packet receiver and its handler.

async_receiver_handler_t

Handles receipt of packets containing user supplied data.

async_receiver_t

Holds content for a packet receiver and its handler.

async_sequence_id_t

A dispatcher-specific sequence identifier, which identifies a set of actions with a total ordering of execution: each subsequent action will always observe side-effects from previous actions, if the thread(s) performing those actions have the same sequence identifier.

async_task_handler_t

Handles execution of a posted task.

async_task_t

Holds context for a task and its handler.

async_wait_handler_t

Handles completion of asynchronous wait operations.

async_wait_t

Holds context for an asynchronous wait operation and its handler.