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net: Use RequestId to cancel fetches instead of creating an IPC channel (#34883)

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Instead of creating an IPC channel for every fetch, allow cancelling
fetches based on the `RequestId` of the original request. This requires
that `RequestId`s be UUIDs so that they are unique between processes
that might communicating with the resource process.

In addition, the resource process loop now keeps a `HashMap` or `Weak`
handles to cancellers and cleans them up.

This allows for creating mutiple `FetchCanceller`s in `script` for a
single fetch request, allowing integration of the media and video
elements to integrate with the `Document` canceller list -- meaning
these fetches also get cancelled when the `Document` unloads.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
This commit is contained in:
Martin Robinson 2025-01-11 12:49:22 +01:00 • committed by GitHub
parent e2be55b873
commit 748954d610
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23 changed files with 179 additions and 226 deletions
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4
components/net/tests/main.rs
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@ -39,7 +39,7 @@ use hyper::{Request as HyperRequest, Response as HyperResponse};
use hyper_util::rt::tokio::TokioIo;
use net::connector::{create_http_client, create_tls_config};
use net::fetch::cors_cache::CorsCache;
use net::fetch::methods::{self, CancellationListener, FetchContext};
use net::fetch::methods::{self, FetchContext};
use net::filemanager_thread::FileManager;
use net::protocols::ProtocolRegistry;
use net::resource_thread::CoreResourceThreadPool;
@ -183,7 +183,7 @@ fn new_fetch_context(
pool_handle.unwrap_or_else(|| Weak::new()),
))),
file_token: FileTokenCheck::NotRequired,
cancellation_listener: Arc::new(Mutex::new(CancellationListener::new(None))),
cancellation_listener: Arc::new(Default::default()),
timing: ServoArc::new(Mutex::new(ResourceFetchTiming::new(
ResourceTimingType::Navigation,
))),