Sha256: 2a19d5317b1bad3f75436c56d841e2e0b480a0b41b0cd4ae4bd868ec70d4e725
Contents?: true
Size: 1.98 KB
Versions: 69
Compression:
Stored size: 1.98 KB
Contents
var once = require('once');
var noop = function() {};
var isRequest = function(stream) {
return stream.setHeader && typeof stream.abort === 'function';
};
var eos = function(stream, opts, callback) {
if (typeof opts === 'function') return eos(stream, null, opts);
if (!opts) opts = {};
callback = once(callback || noop);
var ws = stream._writableState;
var rs = stream._readableState;
var readable = opts.readable || (opts.readable !== false && stream.readable);
var writable = opts.writable || (opts.writable !== false && stream.writable);
var onlegacyfinish = function() {
if (!stream.writable) onfinish();
};
var onfinish = function() {
writable = false;
if (!readable) callback();
};
var onend = function() {
readable = false;
if (!writable) callback();
};
var onclose = function() {
if (readable && !(rs && rs.ended)) return callback(new Error('premature close'));
if (writable && !(ws && ws.ended)) return callback(new Error('premature close'));
};
var onrequest = function() {
stream.req.on('finish', onfinish);
};
if (isRequest(stream)) {
stream.on('complete', onfinish);
stream.on('abort', onclose);
if (stream.req) onrequest();
else stream.on('request', onrequest);
} else if (writable && !ws) { // legacy streams
stream.on('end', onlegacyfinish);
stream.on('close', onlegacyfinish);
}
stream.on('end', onend);
stream.on('finish', onfinish);
if (opts.error !== false) stream.on('error', callback);
stream.on('close', onclose);
return function() {
stream.removeListener('complete', onfinish);
stream.removeListener('abort', onclose);
stream.removeListener('request', onrequest);
if (stream.req) stream.req.removeListener('finish', onfinish);
stream.removeListener('end', onlegacyfinish);
stream.removeListener('close', onlegacyfinish);
stream.removeListener('finish', onfinish);
stream.removeListener('end', onend);
stream.removeListener('error', callback);
stream.removeListener('close', onclose);
};
};
module.exports = eos;
Version data entries
69 entries across 69 versions & 2 rubygems