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child_process: skip count length when maxBuffer is Infinity #43822

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Merged
merged 1 commit into from
Jul 21, 2022
Merged

child_process: skip count length when maxBuffer is Infinity #43822

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12 changes: 11 additions & 1 deletion lib/child_process.js
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Original file line number Diff line number Diff line change
Expand Up @@ -437,6 +437,11 @@ function execFile(file, args = [], options, callback) {
child.stdout.setEncoding(encoding);

child.stdout.on('data', function onChildStdout(chunk) {
// Do not need to count the length
if (options.maxBuffer === Infinity) {
ArrayPrototypePush(_stdout, chunk);
return;
}
const encoding = child.stdout.readableEncoding;
const length = encoding ?
Buffer.byteLength(chunk, encoding) :
Expand All @@ -462,6 +467,11 @@ function execFile(file, args = [], options, callback) {
child.stderr.setEncoding(encoding);

child.stderr.on('data', function onChildStderr(chunk) {
// Do not need to count the length
if (options.maxBuffer === Infinity) {
ArrayPrototypePush(_stderr, chunk);
return;
}
const encoding = child.stderr.readableEncoding;
const length = encoding ?
Buffer.byteLength(chunk, encoding) :
Expand All @@ -476,7 +486,7 @@ function execFile(file, args = [], options, callback) {
ex = new ERR_CHILD_PROCESS_STDIO_MAXBUFFER('stderr');
kill();
} else {
_stderr.push(chunk);
ArrayPrototypePush(_stderr, chunk);
}
});
}
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