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Load .dlls/.wasm/.pdb in parallel with dotnet.*.js. Fixes #18898 (#20029)

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Steve Sanderson 2020-03-20 17:55:39 +00:00 committed by GitHub
parent 4b3608371f
commit ba2bae80fa
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 17 additions and 16 deletions
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8
src/Components/Web.JS/dist/Release/blazor.server.js generated vendored
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2
src/Components/Web.JS/dist/Release/blazor.webassembly.js generated vendored
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23
src/Components/Web.JS/src/Platform/Mono/MonoPlatform.ts
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@ -170,16 +170,21 @@ function createEmscriptenModuleInstance(resourceLoader: WebAssemblyResourceLoade
module.postRun = [];
(module as any).preloadPlugins = [];
// Begin loading the .dll/.pdb/.wasm files, but don't block here. Let other loading processes run in parallel.
const dotnetWasmResourceName = 'dotnet.wasm';
const assembliesBeingLoaded = resourceLoader.loadResources(resources.assembly, filename => `_framework/_bin/${filename}`);
const pdbsBeingLoaded = resourceLoader.loadResources(resources.pdb || {}, filename => `_framework/_bin/${filename}`);
const wasmBeingLoaded = resourceLoader.loadResource(
/* name */ dotnetWasmResourceName,
/* url */ `_framework/wasm/${dotnetWasmResourceName}`,
/* hash */ resourceLoader.bootConfig.resources.runtime[dotnetWasmResourceName]);
// Override the mechanism for fetching the main wasm file so we can connect it to our cache
module.instantiateWasm = (imports, successCallback): WebAssembly.Exports => {
(async () => {
let compiledInstance: WebAssembly.Instance;
try {
const dotnetWasmResourceName = 'dotnet.wasm';
const dotnetWasmResource = await resourceLoader.loadResource(
/* name */ dotnetWasmResourceName,
/* url */ `_framework/wasm/${dotnetWasmResourceName}`,
/* hash */ resourceLoader.bootConfig.resources.runtime[dotnetWasmResourceName]);
const dotnetWasmResource = await wasmBeingLoaded;
compiledInstance = await compileWasmModule(dotnetWasmResource, imports);
} catch (ex) {
module.printErr(ex);
@ -200,12 +205,8 @@ function createEmscriptenModuleInstance(resourceLoader: WebAssemblyResourceLoade
// Fetch the assemblies and PDBs in the background, telling Mono to wait until they are loaded
// Mono requires the assembly filenames to have a '.dll' extension, so supply such names regardless
// of the extensions in the URLs. This allows loading assemblies with arbitrary filenames.
resourceLoader.loadResources(resources.assembly, filename => `_framework/_bin/${filename}`)
.forEach(r => addResourceAsAssembly(r, changeExtension(r.name, '.dll')));
if (resources.pdb) {
resourceLoader.loadResources(resources.pdb, filename => `_framework/_bin/${filename}`)
.forEach(r => addResourceAsAssembly(r, r.name));
}
assembliesBeingLoaded.forEach(r => addResourceAsAssembly(r, changeExtension(r.name, '.dll')));
pdbsBeingLoaded.forEach(r => addResourceAsAssembly(r, r.name));
});
module.postRun.push(() => {