class WireSyncClientImpl

template <>

class WireSyncClientImpl

Defined at line 986 of file fidling/gen/sdk/fidl/fuchsia.hardware.usb.endpoint/fuchsia.hardware.usb.endpoint/cpp/fidl/fuchsia.hardware.usb.endpoint/cpp/wire_messaging.h

Methods to make a sync FIDL call directly on an unowned handle or a

const reference to a |::fidl::ClientEnd

<

::fuchsia_hardware_usb_endpoint::Endpoint>|,

avoiding setting up a client.

Public Methods

::fidl::WireResult< ::fuchsia_hardware_usb_endpoint::Endpoint::GetInfo> GetInfo ()

Gets endpoint information

Allocates 16 bytes of request buffer on the stack. Response is heap-allocated.

::fidl::WireResult< ::fuchsia_hardware_usb_endpoint::Endpoint::RegisterVmos> RegisterVmos (::fidl::VectorView< ::fuchsia_hardware_usb_endpoint::wire::VmoInfo> vmo_ids)

Registers and pins VMOs to the vmo_ids. Returns

* vmo: Handles to successfully registered vmo_ids.

VMO IDs that are already are registered to will fail.

Request is heap-allocated. Response is heap-allocated.

::fidl::WireResult< ::fuchsia_hardware_usb_endpoint::Endpoint::UnregisterVmos> UnregisterVmos (::fidl::VectorView<uint64_t> vmo_ids)

Unregisters the VMOs corresponding to the vmo_ids. Returns

* failed_vmo_ids: vmo_ids that failed to unregister.

* errors: Error values that correspond 1:1 to failed_vmo_ids above.

Request is heap-allocated. Response is heap-allocated.

::fidl::OneWayStatus QueueRequests (::fidl::VectorView< ::fuchsia_hardware_usb_request::wire::Request> req)

Submit Requests to queue. Processed starting with the 0th Request. Submitting a vector of

Requests allows for pre-buffering.

Clients are responsible for cache management and ensuring cache coherency.

After read requests:

- Call zx_cache_flush with ZX_CACHE_FLUSH_DATA | ZX_CACHE_FLUSH_INVALIDATE on buffers that

have been mapped by the client.

- Call zx_vmo_op_range with ZX_VMO_OP_CACHE_CLEAN_INVALIDATE on all other buffers.

Note that writing to any portion of a buffer before OnCompletion is called for that buffer

can corrupt the received data.

Before write requests:

- Call zx_cache_flush with ZX_CACHE_FLUSH_DATA on buffers that have been mapped by the

client.

- Call zx_vmo_op_range with ZX_VMO_OP_CACHE_CLEAN on all other buffers.

Requests may be pre-buffered. In other words, requests may be queued for data that is not

present/ready in the buffer yet. The USB Endpoint Server consuming requests does not care

if the data in the buffer is ready or not and will always process requests on schedule. It

is the responsibility of the USB Endpoint Client that submits requests to ensure that data

is ready on schedule.

* Definition of "on schedule" varies for different endpoints and controllers. In general,

this will be communicated by the `lead_time` parameter returned by `GetInfo`.

Allocates 16 bytes of response buffer on the stack. Request is heap-allocated.

::fidl::WireResult< ::fuchsia_hardware_usb_endpoint::Endpoint::CancelAll> CancelAll ()

Cancels all requests. Returns

* ZX_ERR_IO_NOT_PRESENT: If device is not running, disconnected, or inactive.

* ZX_ERR_IO: If cancel failed due to an unsuccessful request.

Allocates 48 bytes of message buffer on the stack. No heap allocation necessary.