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refactor(op_crates/websocket): refactor event loop (#9079)

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crowlKats 2021-01-10 20:05:24 +01:00 • committed by GitHub
parent 9801858cb0
commit 2c1f74402c
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2 changed files with 70 additions and 49 deletions
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93
op_crates/websocket/01_websocket.js
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@ -294,59 +294,78 @@
}
async #eventLoop() {
if (this.#readyState === OPEN) {
while (this.#readyState === OPEN) {
const message = await core.jsonOpAsync(
"op_ws_next_event",
{ rid: this.#rid },
);
if (message.type === "string" || message.type === "binary") {
let data;
if (message.type === "string") {
data = message.data;
} else {
switch (message.kind) {
case "string": {
const event = new MessageEvent("message", {
data: message.data,
origin: this.#url,
});
event.target = this;
this.dispatchEvent(event);
break;
}
case "binary": {
let data;
if (this.binaryType === "blob") {
data = new Blob([new Uint8Array(message.data)]);
} else {
data = new Uint8Array(message.data).buffer;
}
const event = new MessageEvent("message", {
data,
origin: this.#url,
});
event.target = this;
this.dispatchEvent(event);
break;
}
const event = new MessageEvent("message", {
data,
origin: this.#url,
});
event.target = this;
this.dispatchEvent(event);
case "ping":
core.jsonOpAsync("op_ws_send", {
rid: this.#rid,
kind: "pong",
});
this.#eventLoop();
} else if (message.type === "ping") {
core.jsonOpAsync("op_ws_send", {
rid: this.#rid,
kind: "pong",
});
break;
this.#eventLoop();
} else if (message.type === "close") {
this.#readyState = CLOSED;
const event = new CloseEvent("close", {
wasClean: true,
code: message.code,
reason: message.reason,
});
event.target = this;
this.dispatchEvent(event);
} else if (message.type === "error") {
this.#readyState = CLOSED;
case "close": {
this.#readyState = CLOSED;
const errorEv = new ErrorEvent("error");
errorEv.target = this;
this.dispatchEvent(errorEv);
const event = new CloseEvent("close", {
wasClean: true,
code: message.data.code,
reason: message.data.reason,
});
event.target = this;
this.dispatchEvent(event);
this.#readyState = CLOSED;
const closeEv = new CloseEvent("close");
closeEv.target = this;
this.dispatchEvent(closeEv);
break;
}
case "error": {
this.#readyState = CLOSED;
const errorEv = new ErrorEvent("error");
errorEv.target = this;
this.dispatchEvent(errorEv);
const closeEv = new CloseEvent("close");
closeEv.target = this;
this.dispatchEvent(closeEv);
break;
}
}
}
}