How to use comlink - 10 common examples
To help you get started, we’ve selected a few comlink examples, based on popular ways it is used in public projects.
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wasmerio / wasmer-js / packages / wasm-terminal / src / command-runner / command-runner.ts View on Github 
// Data Callback
Comlink.proxy(
this._processDataCallback.bind(this, {
commandOptionIndex,
sync: false
})
),
// End Callback
Comlink.proxy(
this._processEndCallback.bind(this, {
commandOptionIndex,
processWorker
})
),
// Error Callback
Comlink.proxy(
this._processErrorCallback.bind(this, { commandOptionIndex })
),
// Shared Array Bufer
sharedStdinBuffer,
// Stdin read callback
Comlink.proxy(this._processStartStdinReadCallback.bind(this))
);
// Initialize the shared Stdin.
// Index 0 will be number of elements in buffer
const sharedStdin = new Int32Array(sharedStdinBuffer);
sharedStdin[0] = -1;
return {
process,
commandOptionIndex,),
// End Callback
Comlink.proxy(
this._processEndCallback.bind(this, {
commandOptionIndex,
processWorker
})
),
// Error Callback
Comlink.proxy(
this._processErrorCallback.bind(this, { commandOptionIndex })
),
// Shared Array Bufer
sharedStdinBuffer,
// Stdin read callback
Comlink.proxy(this._processStartStdinReadCallback.bind(this))
);
// Initialize the shared Stdin.
// Index 0 will be number of elements in buffer
const sharedStdin = new Int32Array(sharedStdinBuffer);
sharedStdin[0] = -1;
return {
process,
commandOptionIndex,
worker: processWorker,
sharedStdin: sharedStdin
};
}if (
commandOptionIndex <
this.commandOptionsForProcessesToRun.length - 1
) {
// Try to spawn the next process, if we haven't already
this.tryToSpawnProcess(commandOptionIndex + 1);
} else {
// We are now done!
// Call the passed end callback
this.isRunning = false;
this.endCallback();
}
}),
// Error Callback
Comlink.proxy((error: string) => {
this.xterm.write(
`Program ${this.commandOptionsForProcessesToRun[commandOptionIndex].args[0]}: ${error}\r\n`
);
this.kill();
this.endCallback();
}),
// Stdin
this.initialStdinDataForNextProcess.length > 0
? this.initialStdinDataForNextProcess
: undefined,
// Binary Script (Fallback case)
this.isUsingFallback ? binaryenScript : undefined
);
// Remove the initial stdin if we added it
if (this.initialStdinDataForNextProcess.length > 0) {const sharedStdinBuffer = new SharedArrayBuffer(8192);
// Get our filesystem state
const wasmFsJson = this.wasmTerminalConfig.wasmFs.toJSON();
// Create our Io Device Window
const ioDeviceWindow = new IoDeviceWindow();
// @ts-ignore
const process: any = await new processComlink(
// Command Options
this.commandOptionsForProcessesToRun[commandOptionIndex],
// WasmFs File System JSON
wasmFsJson,
// Data Callback
Comlink.proxy(
this._processDataCallback.bind(this, {
commandOptionIndex,
sync: false
})
),
// End Callback
Comlink.proxy(
this._processEndCallback.bind(this, {
commandOptionIndex,
processWorker
})
),
// Error Callback
Comlink.proxy(
this._processErrorCallback.bind(this, { commandOptionIndex })
),// Data Callback
Comlink.proxy(
this._processDataCallback.bind(this, {
commandOptionIndex,
sync: false
})
),
// End Callback
Comlink.proxy(
this._processEndCallback.bind(this, {
commandOptionIndex,
processWorker
})
),
// Error Callback
Comlink.proxy(
this._processErrorCallback.bind(this, { commandOptionIndex })
),
// Io Device Window
Comlink.proxy(ioDeviceWindow),
// Shared Array Bufer
sharedStdinBuffer,
// Stdin read callback
Comlink.proxy(this._processStartStdinReadCallback.bind(this))
);
// Initialize the shared Stdin.
// Index 0 will be number of elements in buffer
const sharedStdin = new Int32Array(sharedStdinBuffer);
sharedStdin[0] = -1;
return {// @ts-ignore
const process: any = await new processComlink(
// Command Options
this.commandOptionsForProcessesToRun[commandOptionIndex],
// WasmFs File System JSON
wasmFsJson,
// Data Callback
Comlink.proxy(
this._processDataCallback.bind(this, {
commandOptionIndex,
sync: false
})
),
// End Callback
Comlink.proxy(
this._processEndCallback.bind(this, {
commandOptionIndex,
processWorker
})
),
// Error Callback
Comlink.proxy(
this._processErrorCallback.bind(this, { commandOptionIndex })
),
// Io Device Window
Comlink.proxy(ioDeviceWindow),
// Shared Array Bufer
sharedStdinBuffer,
// Stdin read callback
Comlink.proxy(this._processStartStdinReadCallback.bind(this))
);// @ts-ignore
const process: any = await new processComlink(
// Command Options
this.commandOptionsForProcessesToRun[commandOptionIndex],
// WasmFs File System JSON
wasmFsJson,
// Data Callback
Comlink.proxy(
this._processDataCallback.bind(this, {
commandOptionIndex,
sync: false
})
),
// End Callback
Comlink.proxy(
this._processEndCallback.bind(this, {
commandOptionIndex,
processWorker
})
),
// Error Callback
Comlink.proxy(
this._processErrorCallback.bind(this, { commandOptionIndex })
),
// Shared Array Bufer
sharedStdinBuffer,
// Stdin read callback
Comlink.proxy(this._processStartStdinReadCallback.bind(this))
);
// Initialize the shared Stdin.async spawnProcess(commandOptionIndex: number) {
// First set up our fallback if we need to
let binaryenScript = "";
if (this.isUsingFallback && this.binaryenScriptPromise) {
binaryenScript = await this.binaryenScriptPromise;
}
// Generate our process
const processWorker = new Worker("./workers/process/process.worker.js");
const processComlink = Comlink.wrap(processWorker);
// @ts-ignore
const process: any = await new processComlink(
this.commandOptionsForProcessesToRun[commandOptionIndex],
// Data Callback
Comlink.proxy((data: Uint8Array) => {
if (
commandOptionIndex <
this.commandOptionsForProcessesToRun.length - 1
) {
// Pass along to the next spawned process
if (this.spawnedProcessToWorker.length > 1) {
this.spawnedProcessToWorker[1].process.receiveStdinChunk(data);
} else {
const newInitialStdinData = new Uint8Array(
data.length + this.initialStdinDataForNextProcess.lengthif (!this.wasmTerminalConfig.processWorkerUrl) {
throw new Error("Terminal Config missing the Process Worker URL");
}
let processWorkerUrl = this.wasmTerminalConfig.processWorkerUrl;
/*ROLLUP_REPLACE_INLINE
processWorkerUrl = processWorkerInlinedUrl;
ROLLUP_REPLACE_INLINE*/
// Generate our process
const workerBlobUrl = await this._getBlobUrlForProcessWorker(
processWorkerUrl,
this.wasmTty
);
const processWorker = new Worker(workerBlobUrl);
const processComlink = Comlink.wrap(processWorker);
// Generate our shared buffer
const sharedStdinBuffer = new SharedArrayBuffer(8192);
// Get our filesystem state
const wasmFsJson = this.wasmTerminalConfig.wasmFs.toJSON();
// @ts-ignore
const process: any = await new processComlink(
// Command Options
this.commandOptionsForProcessesToRun[commandOptionIndex],
// WasmFs File System JSON
wasmFsJson,
// Data Callback
Comlink.proxy(
this._processDataCallback.bind(this, {if (!this.wasmTerminalConfig.processWorkerUrl) {
throw new Error("Terminal Config missing the Process Worker URL");
}
let processWorkerUrl = this.wasmTerminalConfig.processWorkerUrl;
/*ROLLUP_REPLACE_INLINE
processWorkerUrl = processWorkerInlinedUrl;
ROLLUP_REPLACE_INLINE*/
// Generate our process
const workerBlobUrl = await this._getBlobUrlForProcessWorker(
processWorkerUrl,
this.wasmTty
);
const processWorker = new Worker(workerBlobUrl);
const processComlink = Comlink.wrap(processWorker);
// Generate our shared buffer
const sharedStdinBuffer = new SharedArrayBuffer(8192);
// Get our filesystem state
const wasmFsJson = this.wasmTerminalConfig.wasmFs.toJSON();
// Create our Io Device Window
const ioDeviceWindow = new IoDeviceWindow();
// @ts-ignore
const process: any = await new processComlink(
// Command Options
this.commandOptionsForProcessesToRun[commandOptionIndex],
// WasmFs File System JSON
wasmFsJson,
