f25b21537e
Added the UniffiAsyncCallHandler class. It follows the same basic pattern as UniffiSyncCallHandler, but for async calls. UniffiCallHandlerBase contains shared code between the two. Replaced `use_async_wrapper` with `call_style`, which returns 1 of three options rather than a boolean. This required a slight change to the async config for constructors. User now need to specify `Object.new` instead of `Object`. One upside is that it also allows configuring non-primary constructors. Added a test fixture for this. I used this fixture as an opportunity to sketch out how I think this would work with the application-services code and why this is an improvement over the current system for auto-generating async wrappers. Pass the buildconfig ENV when building the uniffi component libraries. We need this if we want to depend on crates like `moz_task`. Differential Revision: https://phabricator.services.mozilla.com/D227553
72 lines
2.6 KiB
C++
72 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsPrintfCString.h"
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#include "nsString.h"
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#include "nsThreadUtils.h"
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#include "mozilla/dom/OwnedRustBuffer.h"
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#include "mozilla/dom/RootedDictionary.h"
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#include "mozilla/dom/UniFFIBinding.h"
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#include "mozilla/dom/UniFFICallbacks.h"
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#include "mozilla/Maybe.h"
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#include "mozilla/Logging.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/UniquePtr.h"
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namespace mozilla::uniffi {
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extern mozilla::LazyLogModule gUniffiLogger;
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void UniffiCallbackMethodHandlerBase::FireAndForget(
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UniquePtr<UniffiCallbackMethodHandlerBase> aHandler,
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StaticRefPtr<dom::UniFFICallbackHandler>* aJsHandler) {
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nsresult dispatchResult = NS_DispatchToMainThread(NS_NewRunnableFunction(
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"UniFFI callback", [handler = std::move(aHandler),
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aJsHandler]() MOZ_CAN_RUN_SCRIPT_BOUNDARY {
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// Take our own reference to the callback handler to ensure that it
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// stays alive for the duration of this call
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RefPtr<dom::UniFFICallbackHandler> jsHandler = *aJsHandler;
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if (!jsHandler) {
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MOZ_LOG(gUniffiLogger, LogLevel::Error,
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("[UniFFI] %s called, but JS handler not registered",
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handler->mInterfaceName));
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return;
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}
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JSObject* global = jsHandler->CallbackGlobalOrNull();
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if (!global) {
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MOZ_LOG(gUniffiLogger, LogLevel::Error,
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("[UniFFI] JS handler for %s has null global",
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handler->mInterfaceName));
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return;
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}
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dom::AutoEntryScript aes(global, handler->mInterfaceName);
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IgnoredErrorResult error;
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handler->MakeCall(aes.cx(), jsHandler, error);
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if (error.Failed()) {
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MOZ_LOG(gUniffiLogger, LogLevel::Error,
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("[UniFFI] Error invoking JS handler for %s",
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handler->mInterfaceName));
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return;
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}
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}));
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if (NS_FAILED(dispatchResult)) {
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MOZ_LOG(gUniffiLogger, LogLevel::Error,
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("[UniFFI] Error dispatching UniFFI callback task"));
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}
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}
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void UniffiCallbackFreeHandler::MakeCall(JSContext* aCx,
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dom::UniFFICallbackHandler* aJsHandler,
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ErrorResult& aError) {
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aJsHandler->Destroy(mObjectHandle, aError);
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}
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} // namespace mozilla::uniffi
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