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Error handling for promise returning operations

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This commit is contained in:
Kunal Mohan 2020-08-02 12:45:22 +05:30
parent 8cb5fad828
commit cd8d9162e6
5 changed files with 93 additions and 55 deletions
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25
components/script/dom/gpu.rs
View file

@ -41,7 +41,7 @@ impl GPU {
}
pub trait AsyncWGPUListener {
fn handle_response(&self, response: WebGPUResponse, promise: &Rc<Promise>);
fn handle_response(&self, response: WebGPUResponseResult, promise: &Rc<Promise>);
}
struct WGPUResponse<T: AsyncWGPUListener + DomObject> {
@ -53,13 +53,7 @@ impl<T: AsyncWGPUListener + DomObject> WGPUResponse<T> {
#[allow(unrooted_must_root)]
fn response(self, response: WebGPUResponseResult) {
let promise = self.trusted.root();
match response {
Ok(response) => self.receiver.root().handle_response(response, &promise),
Err(error) => promise.reject_error(Error::Type(format!(
"Received error from WebGPU thread: {}",
error
))),
}
self.receiver.root().handle_response(response, &promise);
}
}
@ -134,13 +128,13 @@ impl GPUMethods for GPU {
}
impl AsyncWGPUListener for GPU {
fn handle_response(&self, response: WebGPUResponse, promise: &Rc<Promise>) {
fn handle_response(&self, response: WebGPUResponseResult, promise: &Rc<Promise>) {
match response {
WebGPUResponse::RequestAdapter {
Ok(WebGPUResponse::RequestAdapter {
adapter_name,
adapter_id,
channel,
} => {
}) => {
let adapter = GPUAdapter::new(
&self.global(),
channel,
@ -150,7 +144,14 @@ impl AsyncWGPUListener for GPU {
);
promise.resolve_native(&adapter);
},
_ => promise.reject_error(Error::Operation),
Err(e) => {
warn!("Could not get GPUAdapter ({:?})", e);
promise.resolve_native(&None::<GPUAdapter>);
},
_ => {
warn!("GPU received wrong WebGPUResponse");
promise.reject_error(Error::Operation);
},
}
}
}

17
components/script/dom/gpuadapter.rs
View file

@ -20,7 +20,7 @@ use dom_struct::dom_struct;
use js::jsapi::{Heap, JSObject};
use std::ptr::NonNull;
use std::rc::Rc;
use webgpu::{wgt, WebGPU, WebGPUAdapter, WebGPURequest, WebGPUResponse};
use webgpu::{wgt, WebGPU, WebGPUAdapter, WebGPURequest, WebGPUResponse, WebGPUResponseResult};
#[dom_struct]
pub struct GPUAdapter {
@ -114,14 +114,14 @@ impl GPUAdapterMethods for GPUAdapter {
}
impl AsyncWGPUListener for GPUAdapter {
fn handle_response(&self, response: WebGPUResponse, promise: &Rc<Promise>) {
fn handle_response(&self, response: WebGPUResponseResult, promise: &Rc<Promise>) {
match response {
WebGPUResponse::RequestDevice {
Ok(WebGPUResponse::RequestDevice {
device_id,
queue_id,
_descriptor,
label,
} => {
}) => {
let device = GPUDevice::new(
&self.global(),
self.channel.clone(),
@ -135,7 +135,14 @@ impl AsyncWGPUListener for GPUAdapter {
self.global().add_gpu_device(&device);
promise.resolve_native(&device);
},
_ => promise.reject_error(Error::Operation),
Err(e) => {
warn!("Could not get GPUDevice({:?})", e);
promise.reject_error(Error::Operation);
},
_ => {
warn!("GPUAdapter received wrong WebGPUResponse");
promise.reject_error(Error::Operation);
},
}
}
}

56
components/script/dom/gpubuffer.rs
View file

@ -26,7 +26,10 @@ use std::ffi::c_void;
use std::ops::Range;
use std::ptr::NonNull;
use std::rc::Rc;
use webgpu::{wgpu::device::HostMap, WebGPU, WebGPUBuffer, WebGPURequest, WebGPUResponse};
use webgpu::{
wgpu::device::HostMap, WebGPU, WebGPUBuffer, WebGPURequest, WebGPUResponse,
WebGPUResponseResult,
};
const RANGE_OFFSET_ALIGN_MASK: u64 = 8;
const RANGE_SIZE_ALIGN_MASK: u64 = 4;
@ -197,19 +200,21 @@ impl GPUBufferMethods for GPUBuffer {
&self,
mode: u32,
offset: GPUSize64,
size: GPUSize64,
size: Option<GPUSize64>,
comp: InRealm,
) -> Rc<Promise> {
let promise = Promise::new_in_current_realm(&self.global(), comp);
let map_range = if size == 0 {
offset..self.size
if self.state.get() != GPUBufferState::Unmapped {
promise.reject_error(Error::Abort);
return promise;
}
let range_size = if let Some(s) = size {
s
} else if offset >= self.size {
promise.reject_error(Error::Operation);
return promise;
} else {
if offset + size > self.size {
warn!("Requested mapping size is greated than buffer size");
promise.reject_error(Error::Abort);
return promise;
}
offset..offset + size
self.size - offset
};
let host_map = match mode {
GPUMapModeConstants::READ => HostMap::Read,
@ -219,10 +224,8 @@ impl GPUBufferMethods for GPUBuffer {
return promise;
},
};
if self.state.get() != GPUBufferState::Unmapped {
promise.reject_error(Error::Abort);
return promise;
}
let map_range = offset..offset + range_size;
let sender = response_async(&promise, self);
if let Err(e) = self.channel.0.send(WebGPURequest::BufferMapAsync {
@ -257,9 +260,16 @@ impl GPUBufferMethods for GPUBuffer {
&self,
cx: JSContext,
offset: GPUSize64,
size: GPUSize64,
size: Option<GPUSize64>,
) -> Fallible<NonNull<JSObject>> {
let m_end = if size == 0 { self.size } else { offset + size };
let range_size = if let Some(s) = size {
s
} else if offset >= self.size {
return Err(Error::Operation);
} else {
self.size - offset
};
let m_end = offset + range_size;
let mut info = self.map_info.borrow_mut();
let m_info = info.as_mut().unwrap();
@ -268,7 +278,7 @@ impl GPUBufferMethods for GPUBuffer {
_ => false,
};
valid &= offset % RANGE_OFFSET_ALIGN_MASK == 0 &&
(m_end - offset) % RANGE_SIZE_ALIGN_MASK == 0 &&
range_size % RANGE_SIZE_ALIGN_MASK == 0 &&
offset >= m_info.mapping_range.start &&
m_end <= m_info.mapping_range.end;
valid &= m_info
@ -286,7 +296,7 @@ impl GPUBufferMethods for GPUBuffer {
let array_buffer = unsafe {
NewExternalArrayBuffer(
*cx,
(m_end - offset) as usize,
range_size as usize,
m_info.mapping.borrow_mut()[offset as usize..m_end as usize].as_mut_ptr() as _,
Some(free_func),
Rc::into_raw(m_info.mapping.clone()) as _,
@ -312,9 +322,9 @@ impl GPUBufferMethods for GPUBuffer {
impl AsyncWGPUListener for GPUBuffer {
#[allow(unsafe_code)]
fn handle_response(&self, response: WebGPUResponse, promise: &Rc<Promise>) {
fn handle_response(&self, response: WebGPUResponseResult, promise: &Rc<Promise>) {
match response {
WebGPUResponse::BufferMapAsync(bytes) => {
Ok(WebGPUResponse::BufferMapAsync(bytes)) => {
*self
.map_info
.borrow_mut()
@ -325,8 +335,12 @@ impl AsyncWGPUListener for GPUBuffer {
promise.resolve_native(&());
self.state.set(GPUBufferState::Mapped);
},
Err(e) => {
warn!("Could not map buffer({:?})", e);
promise.reject_error(Error::Abort);
},
_ => {
warn!("Wrong WebGPUResponse received");
warn!("GPUBuffer received wrong WebGPUResponse");
promise.reject_error(Error::Operation);
},
}

4
components/script/dom/webidls/GPUBuffer.webidl
View file

@ -5,8 +5,8 @@
// https://gpuweb.github.io/gpuweb/#gpubuffer
[Exposed=(Window, DedicatedWorker), Serializable, Pref="dom.webgpu.enabled"]
interface GPUBuffer {
Promise<void> mapAsync(GPUMapModeFlags mode, optional GPUSize64 offset = 0, optional GPUSize64 size = 0);
[Throws] ArrayBuffer getMappedRange(optional GPUSize64 offset = 0, optional GPUSize64 size = 0);
Promise<void> mapAsync(GPUMapModeFlags mode, optional GPUSize64 offset = 0, optional GPUSize64 size);
[Throws] ArrayBuffer getMappedRange(optional GPUSize64 offset = 0, optional GPUSize64 size);
void unmap();
void destroy();

46
components/webgpu/lib.rs
View file

@ -412,7 +412,7 @@ impl<'a> WGPU<'a> {
} => {
let map_info = BufferMapInfo {
buffer_id,
sender,
sender: sender.clone(),
global: &self.global,
size: (map_range.end - map_range.start) as usize,
external_id: None,
@ -426,22 +426,24 @@ impl<'a> WGPU<'a> {
let info = Rc::from_raw(
userdata as *const BufferMapInfo<WebGPUResponseResult>,
);
match status {
let msg = match status {
BufferMapAsyncStatus::Success => {
let global = &info.global;
let data_pt = gfx_select!(info.buffer_id =>
global.buffer_get_mapped_range(info.buffer_id, 0, None))
.unwrap();
let data = slice::from_raw_parts(data_pt, info.size);
if let Err(e) =
info.sender.send(Ok(WebGPUResponse::BufferMapAsync(
IpcSharedMemory::from_bytes(data),
)))
{
warn!("Could not send BufferMapAsync Response ({})", e);
}
Ok(WebGPUResponse::BufferMapAsync(IpcSharedMemory::from_bytes(
data,
)))
},
_ => error!("Could not map buffer({:?})", info.buffer_id),
_ => {
warn!("Could not map buffer({:?})", info.buffer_id);
Err(String::from("Failed to map Buffer"))
},
};
if let Err(e) = info.sender.send(msg) {
warn!("Could not send BufferMapAsync Response ({})", e);
}
}
@ -453,7 +455,12 @@ impl<'a> WGPU<'a> {
),
};
let global = &self.global;
let _ = gfx_select!(buffer_id => global.buffer_map_async(buffer_id, map_range, operation));
let result = gfx_select!(buffer_id => global.buffer_map_async(buffer_id, map_range, operation));
if let Err(e) = result {
if let Err(w) = sender.send(Err(format!("{:?}", e))) {
warn!("Failed to send BufferMapAsync Response ({:?})", w);
}
}
},
WebGPURequest::BufferMapComplete(buffer_id) => {
self.buffer_maps.remove(&buffer_id);
@ -892,14 +899,23 @@ impl<'a> WGPU<'a> {
label,
} => {
let global = &self.global;
let result = gfx_select!(device_id => global.adapter_request_device(
let id = match gfx_select!(device_id => global.adapter_request_device(
adapter_id.0,
&descriptor,
None,
device_id
));
// TODO: Handle error gracefully acc. to spec.
let id = result.unwrap();
)) {
Ok(id) => id,
Err(e) => {
if let Err(w) = sender.send(Err(format!("{:?}", e))) {
warn!(
"Failed to send response to WebGPURequest::RequestDevice ({})",
w
)
}
return;
},
};
let device = WebGPUDevice(id);
// Note: (zakorgy) Note sure if sending the queue is needed at all,
// since wgpu-core uses the same id for the device and the queue