114 lines
3.1 KiB
TypeScript
114 lines
3.1 KiB
TypeScript
import { join } from 'path';
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import { exec, spawn } from 'child_process';
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import * as util from 'util';
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import type { IRunner, IRunnerParams, IRunnerReturn, RunResult } from './types.cjs';
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import { timeoutSeconds } from './settings.cjs';
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import kill from 'tree-kill';
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const execPromise = util.promisify(exec);
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interface IRunnerParamsJava extends IRunnerParams {
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srcDir: string;
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mainFile: string;
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mainClass: string;
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input: string;
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outputCallback?: (data: string) => void;
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}
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export const runJava: IRunner<IRunnerParamsJava> = async function (
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params: IRunnerParamsJava
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): Promise<IRunnerReturn> {
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console.log(`- BUILD: ${params.mainFile}`);
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const compileCommand = `javac -cp ${join(params.srcDir, 'src')} ${params.mainFile} -d ${join(params.srcDir, 'build')}`;
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try {
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await execPromise(compileCommand);
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} catch (e) {
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const buildErrorText = e?.toString() ?? 'Unknown build errors.';
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console.log('Build errors: ' + buildErrorText);
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return {
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success: false,
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runResult: { kind: 'CompileFailed', resultKindReason: buildErrorText }
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};
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}
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console.log(`- RUN: ${params.mainClass}`);
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const runCommand = `java -cp "${join(params.srcDir, 'build')}" ${params.mainClass}`;
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try {
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let outputBuffer = '';
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const child = spawn(runCommand, { shell: true });
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child.stdout.setEncoding('utf8');
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child.stdout.on('data', (data) => {
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outputBuffer += data.toString();
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params.outputCallback?.(data.toString());
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});
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child.stderr.setEncoding('utf8');
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child.stderr.on('data', (data) => {
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outputBuffer += data.toString();
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params.outputCallback?.(data.toString());
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});
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const runStartTime = performance.now();
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child.stdin.write(params.input);
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child.stdin.end();
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let timeLimitExceeded = false;
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let completedNormally = false;
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return {
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success: true,
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runResult: new Promise<RunResult>((resolve) => {
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child.on('close', () => {
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completedNormally = !timeLimitExceeded;
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const runEndTime = performance.now();
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const runtimeMilliseconds = Math.floor(runEndTime - runStartTime);
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if (completedNormally) {
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clearTimeout(timeoutHandle);
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resolve({
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kind: 'Completed',
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output: outputBuffer,
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exitCode: child.exitCode!,
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runtimeMilliseconds
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});
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} else {
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console.log(`Process terminated, total sandbox time: ${runtimeMilliseconds}ms`);
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resolve({
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kind: 'TimeLimitExceeded',
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output: outputBuffer,
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resultKindReason: `Timeout after ${timeoutSeconds} seconds`
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});
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}
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});
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const timeoutHandle = setTimeout(() => {
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if (completedNormally) {
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return;
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}
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console.log(`Run timed out after ${timeoutSeconds} seconds, killing process...`);
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timeLimitExceeded = true;
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child.stdin.end();
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child.stdin.destroy();
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child.stdout.destroy();
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child.stderr.destroy();
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child.kill('SIGKILL');
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}, timeoutSeconds * 1000);
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}),
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killFunc() {
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if (child.pid !== undefined) {
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if (!completedNormally && !timeLimitExceeded) {
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kill(child.pid);
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params.outputCallback?.('\n[Manually stopped]');
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}
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}
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}
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};
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} catch (error) {
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return { success: false, runResult: { kind: 'RunError' } };
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}
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};
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