mirror of
https://github.com/massbug/judge4c.git
synced 2025-05-18 07:16:34 +00:00
feat(judge): update container configuration and add limits for output and memory
This commit is contained in:
parent
578e33d4c4
commit
03f3d9682a
@ -13,64 +13,110 @@ async function prepareEnvironment(image: string, tag: string) {
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const reference = `${image}:${tag}`;
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const filters = { reference: [reference] };
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const images = await docker.listImages({ filters });
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if (images.length === 0) {
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await docker.pull(reference);
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}
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if (images.length === 0) await docker.pull(reference);
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}
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// Create Docker container with keep-alive
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async function createContainer(image: string, tag: string, workingDir: string) {
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async function createContainer(image: string, tag: string, workingDir: string, memoryLimit?: number) {
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const container = await docker.createContainer({
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Image: `${image}:${tag}`,
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Cmd: ["tail", "-f", "/dev/null"], // Keep container alive
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WorkingDir: workingDir,
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HostConfig: {
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Memory: memoryLimit ? memoryLimit * 1024 * 1024 : undefined,
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MemorySwap: memoryLimit ? memoryLimit * 1024 * 1024 : undefined,
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},
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NetworkDisabled: true,
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});
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await container.start();
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return container;
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}
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// Create tar stream for code submission
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function createTarStream(filePath: string, value: string) {
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function createTarStream(file: string, value: string) {
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const pack = tar.pack();
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pack.entry({ name: filePath }, value);
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pack.entry({ name: file }, value);
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pack.finalize();
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return Readable.from(pack);
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}
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// Compilation process handler
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async function compileCode(
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container: Docker.Container,
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filePath: string,
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fileName: string
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export async function judge(
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language: string,
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value: string
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): Promise<JudgeResult> {
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const { fileName, fileExtension, image, tag, workingDir, memoryLimit, timeLimit, compileOutputLimit, runOutputLimit } = LanguageConfigs[language];
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const file = `${fileName}.${fileExtension}`;
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let container: Docker.Container | undefined;
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try {
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await prepareEnvironment(image, tag);
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container = await createContainer(image, tag, workingDir, memoryLimit);
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const tarStream = createTarStream(file, value);
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await container.putArchive(tarStream, { path: workingDir });
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const compileResult = await compile(container, file, fileName, compileOutputLimit);
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if (compileResult.exitCode === ExitCode.CE) {
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return compileResult;
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}
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const runResult = await run(container, fileName, timeLimit, runOutputLimit);
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return runResult;
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} catch (error) {
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console.error(error);
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return { output: "System Error", exitCode: ExitCode.SE };
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} finally {
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if (container) {
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await container.kill();
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await container.remove();
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}
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}
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}
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async function compile(container: Docker.Container, file: string, fileName: string, maxOutput: number = 1 * 1024 * 1024): Promise<JudgeResult> {
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const compileExec = await container.exec({
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Cmd: ["gcc", filePath, "-o", fileName],
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Cmd: ["gcc", "-O2", file, "-o", fileName],
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AttachStdout: true,
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AttachStderr: true,
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});
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return new Promise<JudgeResult>((resolve, reject) => {
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compileExec.start({}, (error, stream) => {
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if (error) return reject({ output: error.message, exitCode: ExitCode.SE });
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if (!stream) return reject({ output: "No stream", exitCode: ExitCode.SE });
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if (error || !stream) {
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return reject({ output: "System Error", exitCode: ExitCode.SE });
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}
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const stdoutChunks: string[] = [];
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const stderrChunks: string[] = [];
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let stdoutLength = 0;
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const stdoutStream = new Writable({
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write(chunk, encoding, callback) {
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stdoutChunks.push(chunk.toString());
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write(chunk, _encoding, callback) {
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let text = chunk.toString();
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if (stdoutLength + text.length > maxOutput) {
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text = text.substring(0, maxOutput - stdoutLength);
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stdoutChunks.push(text);
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stdoutLength = maxOutput;
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callback();
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return;
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}
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stdoutChunks.push(text);
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stdoutLength += text.length;
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callback();
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},
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});
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const stderrChunks: string[] = [];
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let stderrLength = 0;
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const stderrStream = new Writable({
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write(chunk, encoding, callback) {
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stderrChunks.push(chunk.toString());
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write(chunk, _encoding, callback) {
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let text = chunk.toString();
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if (stderrLength + text.length > maxOutput) {
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text = text.substring(0, maxOutput - stderrLength);
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stderrChunks.push(text);
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stderrLength = maxOutput;
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callback();
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return;
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}
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stderrChunks.push(text);
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stderrLength += text.length;
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callback();
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},
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});
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docker.modem.demuxStream(stream, stdoutStream, stderrStream);
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@ -78,62 +124,28 @@ async function compileCode(
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stream.on("end", async () => {
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const stdout = stdoutChunks.join("");
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const stderr = stderrChunks.join("");
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const details = await compileExec.inspect();
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const exitCode = (await compileExec.inspect()).ExitCode;
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resolve({
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output: stderr || stdout,
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exitCode: details.ExitCode === 0 ? ExitCode.AC : ExitCode.CE
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});
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let result: JudgeResult;
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if (exitCode !== 0 || stderr) {
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result = { output: stderr || "Compilation Error", exitCode: ExitCode.CE };
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} else {
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result = { output: stdout, exitCode: ExitCode.CS };
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}
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resolve(result);
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});
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stream.on("error", (error) => {
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reject({ output: error.message, exitCode: ExitCode.SE });
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stream.on("error", () => {
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reject({ output: "System Error", exitCode: ExitCode.SE });
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});
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});
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});
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}
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// Memory monitoring utility
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async function monitorMemoryUsage(
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container: Docker.Container,
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memoryLimit: number,
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timeoutHandle: NodeJS.Timeout
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): Promise<void> {
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return new Promise((resolve, reject) => {
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const interval = setInterval(async () => {
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try {
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const stats = await container.stats({ stream: false });
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const memoryUsage = stats.memory_stats.usage / (1024 * 1024);
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if (memoryUsage > memoryLimit) {
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clearInterval(interval);
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clearTimeout(timeoutHandle);
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await container.stop({ t: 0 });
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await container.remove();
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reject({
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output: `Memory limit exceeded (${memoryUsage.toFixed(2)}MB)`,
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exitCode: ExitCode.MLE
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});
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}
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} catch (error) {
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clearInterval(interval);
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reject({
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output: `Memory monitoring failed: ${error}`,
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exitCode: ExitCode.SE
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});
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}
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}, 500);
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});
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}
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// Code execution handler
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async function runCode(
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container: Docker.Container,
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fileName: string,
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timeout: number,
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memoryLimit: number
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): Promise<JudgeResult> {
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const startTime = Date.now();
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// Run code and implement timeout
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async function run(container: Docker.Container, fileName: string, timeLimit?: number, maxOutput: number = 1 * 1024 * 1024): Promise<JudgeResult> {
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const runExec = await container.exec({
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Cmd: [`./${fileName}`],
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AttachStdout: true,
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@ -141,121 +153,84 @@ async function runCode(
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});
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return new Promise<JudgeResult>((resolve, reject) => {
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let timeoutHandle: NodeJS.Timeout;
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runExec.start({}, async (error, stream) => {
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if (error) return reject({ output: error.message, exitCode: ExitCode.SE });
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if (!stream) return reject({ output: "No stream", exitCode: ExitCode.SE });
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const stdoutChunks: string[] = [];
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const stderrChunks: string[] = [];
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let stdoutLength = 0;
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const stdoutStream = new Writable({
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write(chunk, encoding, callback) {
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stdoutChunks.push(chunk.toString());
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write(chunk, _encoding, callback) {
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let text = chunk.toString();
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if (stdoutLength + text.length > maxOutput) {
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text = text.substring(0, maxOutput - stdoutLength);
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stdoutChunks.push(text);
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stdoutLength = maxOutput;
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callback();
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return;
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}
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stdoutChunks.push(text);
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stdoutLength += text.length;
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callback();
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},
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});
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const stderrChunks: string[] = [];
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let stderrLength = 0;
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const stderrStream = new Writable({
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write(chunk, encoding, callback) {
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stderrChunks.push(chunk.toString());
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write(chunk, _encoding, callback) {
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let text = chunk.toString();
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if (stderrLength + text.length > maxOutput) {
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text = text.substring(0, maxOutput - stderrLength);
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stderrChunks.push(text);
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stderrLength = maxOutput;
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callback();
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return;
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}
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stderrChunks.push(text);
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stderrLength += text.length;
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callback();
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},
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});
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// Start the exec stream
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runExec.start({}, async (error, stream) => {
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if (error || !stream) {
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return reject({ output: "System Error", exitCode: ExitCode.SE });
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}
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docker.modem.demuxStream(stream, stdoutStream, stderrStream);
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// Timeout control
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timeoutHandle = setTimeout(async () => {
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try {
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await container.stop({ t: 0 });
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await container.remove();
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reject({
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output: `Timeout after ${timeout}ms`,
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exitCode: ExitCode.TLE
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// Timeout mechanism
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const timeoutId = setTimeout(() => {
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// Timeout reached, kill the container
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container.kill();
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resolve({
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output: "Time Limit Exceeded",
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exitCode: ExitCode.TLE,
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});
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} catch (error) {
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reject({
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output: `Timeout handling failed: ${error}`,
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exitCode: ExitCode.SE
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});
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}
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}, timeout);
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// Memory monitoring
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monitorMemoryUsage(container, memoryLimit, timeoutHandle)
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.catch(reject);
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}, timeLimit);
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stream.on("end", async () => {
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clearTimeout(timeoutHandle);
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clearTimeout(timeoutId); // Clear the timeout if the program finishes before the time limit
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const stdout = stdoutChunks.join("");
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const stderr = stderrChunks.join("");
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const details = await runExec.inspect();
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const exitCode = (await runExec.inspect()).ExitCode;
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resolve({
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output: stderr ? `${stdout}\n${stderr}` : stdout,
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exitCode: details.ExitCode === 0 ? ExitCode.AC : ExitCode.RE,
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executionTime: Date.now() - startTime
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});
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let result: JudgeResult;
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// Exit code 0 means successful execution
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if (exitCode === 0) {
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result = { output: stdout, exitCode: ExitCode.AC };
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} else if (exitCode === 137) {
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result = { output: stderr || "Memory Limit Exceeded", exitCode: ExitCode.MLE };
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} else {
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result = { output: stderr || "Runtime Error", exitCode: ExitCode.RE };
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}
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resolve(result);
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});
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stream.on("error", (error) => {
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reject({ output: error.message, exitCode: ExitCode.SE });
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stream.on("error", () => {
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clearTimeout(timeoutId); // Clear timeout in case of error
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reject({ output: "System Error", exitCode: ExitCode.SE });
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});
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});
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});
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}
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// Cleanup resources
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async function cleanupContainer(container: Docker.Container) {
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try {
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await container.stop({ t: 0 });
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await container.remove();
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} catch (error) {
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console.error("Cleanup failed:", error);
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}
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}
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// Main judge function
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export async function judge(
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language: string,
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value: string
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): Promise<JudgeResult> {
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const config = LanguageConfigs[language];
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const filePath = `${config.fileName}.${config.extension}`;
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let container: Docker.Container | undefined;
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try {
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await prepareEnvironment(config.image, config.tag);
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container = await createContainer(config.image, config.tag, config.workingDir);
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// Inject code into container
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const tarStream = createTarStream(filePath, value);
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await container.putArchive(tarStream, { path: config.workingDir });
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// Compilation phase
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const compileResult = await compileCode(container, filePath, config.fileName);
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if (compileResult.exitCode !== ExitCode.AC) {
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return compileResult;
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}
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// Execution phase
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return await runCode(container, config.fileName, config.timeout, config.memoryLimit);
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} catch (error) {
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// Error handling
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console.error(error);
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const result: JudgeResult = {
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output: "Unknow Error",
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exitCode: ExitCode.SE,
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};
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return result;
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} finally {
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// Resource cleanup
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if (container) {
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cleanupContainer(container).catch(() => { });
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}
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}
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}
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@ -40,7 +40,7 @@ export const LanguageConfigs: Record<string, LanguageConfig> = {
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image: "gcc",
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tag: "latest",
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workingDir: "/src",
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timeLimit: 10000,
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timeLimit: 1000,
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memoryLimit: 128,
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compileOutputLimit: 1 * 1024 * 1024,
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runOutputLimit: 1 * 1024 * 1024,
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@ -53,7 +53,7 @@ export const LanguageConfigs: Record<string, LanguageConfig> = {
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image: "gcc",
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tag: "latest",
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workingDir: "/src",
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timeLimit: 10000,
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timeLimit: 1000,
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memoryLimit: 128,
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compileOutputLimit: 1 * 1024 * 1024,
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runOutputLimit: 1 * 1024 * 1024,
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