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@@ -0,0 +1,687 @@
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+// Copyright Joyent, Inc. and other Node contributors.
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+//
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+// Permission is hereby granted, free of charge, to any person obtaining a
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+// copy of this software and associated documentation files (the
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+// "Software"), to deal in the Software without restriction, including
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+// without limitation the rights to use, copy, modify, merge, publish,
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+// distribute, sublicense, and/or sell copies of the Software, and to permit
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+// persons to whom the Software is furnished to do so, subject to the
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+// following conditions:
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+//
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+// The above copyright notice and this permission notice shall be included
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+// in all copies or substantial portions of the Software.
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+//
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+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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+// USE OR OTHER DEALINGS IN THE SOFTWARE.
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+
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+// A bit simpler than readable streams.
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+// Implement an async ._write(chunk, encoding, cb), and it'll handle all
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+// the drain event emission and buffering.
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+
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+'use strict';
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+
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+/*<replacement>*/
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+
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+var pna = require('process-nextick-args');
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+/*</replacement>*/
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+
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+module.exports = Writable;
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+
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+/* <replacement> */
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+function WriteReq(chunk, encoding, cb) {
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+ this.chunk = chunk;
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+ this.encoding = encoding;
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+ this.callback = cb;
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+ this.next = null;
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+}
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+
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+// It seems a linked list but it is not
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+// there will be only 2 of these for each stream
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+function CorkedRequest(state) {
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+ var _this = this;
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+
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+ this.next = null;
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+ this.entry = null;
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+ this.finish = function () {
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+ onCorkedFinish(_this, state);
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+ };
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+}
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+/* </replacement> */
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+
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+/*<replacement>*/
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+var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick;
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+/*</replacement>*/
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+
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+/*<replacement>*/
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+var Duplex;
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+/*</replacement>*/
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+
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+Writable.WritableState = WritableState;
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+
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+/*<replacement>*/
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+var util = Object.create(require('core-util-is'));
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+util.inherits = require('inherits');
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+/*</replacement>*/
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+
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+/*<replacement>*/
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+var internalUtil = {
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+ deprecate: require('util-deprecate')
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+};
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+/*</replacement>*/
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+
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+/*<replacement>*/
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+var Stream = require('./internal/streams/stream');
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+/*</replacement>*/
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+
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+/*<replacement>*/
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+
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+var Buffer = require('safe-buffer').Buffer;
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+var OurUint8Array = global.Uint8Array || function () {};
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+function _uint8ArrayToBuffer(chunk) {
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+ return Buffer.from(chunk);
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+}
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+function _isUint8Array(obj) {
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+ return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
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+}
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+
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+/*</replacement>*/
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+
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+var destroyImpl = require('./internal/streams/destroy');
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+
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+util.inherits(Writable, Stream);
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+
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+function nop() {}
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+
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+function WritableState(options, stream) {
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+ Duplex = Duplex || require('./_stream_duplex');
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+
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+ options = options || {};
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+
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+ // Duplex streams are both readable and writable, but share
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+ // the same options object.
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+ // However, some cases require setting options to different
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+ // values for the readable and the writable sides of the duplex stream.
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+ // These options can be provided separately as readableXXX and writableXXX.
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+ var isDuplex = stream instanceof Duplex;
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+
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+ // object stream flag to indicate whether or not this stream
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+ // contains buffers or objects.
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+ this.objectMode = !!options.objectMode;
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+
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+ if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
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+
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+ // the point at which write() starts returning false
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+ // Note: 0 is a valid value, means that we always return false if
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+ // the entire buffer is not flushed immediately on write()
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+ var hwm = options.highWaterMark;
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+ var writableHwm = options.writableHighWaterMark;
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+ var defaultHwm = this.objectMode ? 16 : 16 * 1024;
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+
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+ if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm;
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+
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+ // cast to ints.
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+ this.highWaterMark = Math.floor(this.highWaterMark);
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+
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+ // if _final has been called
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+ this.finalCalled = false;
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+
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+ // drain event flag.
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+ this.needDrain = false;
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+ // at the start of calling end()
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+ this.ending = false;
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+ // when end() has been called, and returned
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+ this.ended = false;
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+ // when 'finish' is emitted
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+ this.finished = false;
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+
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+ // has it been destroyed
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+ this.destroyed = false;
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+
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+ // should we decode strings into buffers before passing to _write?
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+ // this is here so that some node-core streams can optimize string
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+ // handling at a lower level.
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+ var noDecode = options.decodeStrings === false;
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+ this.decodeStrings = !noDecode;
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+
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+ // Crypto is kind of old and crusty. Historically, its default string
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+ // encoding is 'binary' so we have to make this configurable.
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+ // Everything else in the universe uses 'utf8', though.
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+ this.defaultEncoding = options.defaultEncoding || 'utf8';
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+
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+ // not an actual buffer we keep track of, but a measurement
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+ // of how much we're waiting to get pushed to some underlying
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+ // socket or file.
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+ this.length = 0;
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+
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+ // a flag to see when we're in the middle of a write.
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+ this.writing = false;
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+
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+ // when true all writes will be buffered until .uncork() call
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+ this.corked = 0;
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+
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+ // a flag to be able to tell if the onwrite cb is called immediately,
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+ // or on a later tick. We set this to true at first, because any
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+ // actions that shouldn't happen until "later" should generally also
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+ // not happen before the first write call.
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+ this.sync = true;
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+
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+ // a flag to know if we're processing previously buffered items, which
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+ // may call the _write() callback in the same tick, so that we don't
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+ // end up in an overlapped onwrite situation.
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+ this.bufferProcessing = false;
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+
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+ // the callback that's passed to _write(chunk,cb)
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+ this.onwrite = function (er) {
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+ onwrite(stream, er);
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+ };
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+
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+ // the callback that the user supplies to write(chunk,encoding,cb)
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+ this.writecb = null;
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+
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+ // the amount that is being written when _write is called.
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+ this.writelen = 0;
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+
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+ this.bufferedRequest = null;
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+ this.lastBufferedRequest = null;
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+
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+ // number of pending user-supplied write callbacks
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+ // this must be 0 before 'finish' can be emitted
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+ this.pendingcb = 0;
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+
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+ // emit prefinish if the only thing we're waiting for is _write cbs
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+ // This is relevant for synchronous Transform streams
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+ this.prefinished = false;
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+
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+ // True if the error was already emitted and should not be thrown again
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+ this.errorEmitted = false;
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+
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+ // count buffered requests
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+ this.bufferedRequestCount = 0;
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+
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+ // allocate the first CorkedRequest, there is always
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+ // one allocated and free to use, and we maintain at most two
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+ this.corkedRequestsFree = new CorkedRequest(this);
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+}
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+
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+WritableState.prototype.getBuffer = function getBuffer() {
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+ var current = this.bufferedRequest;
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+ var out = [];
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+ while (current) {
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+ out.push(current);
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+ current = current.next;
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+ }
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+ return out;
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+};
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+
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+(function () {
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+ try {
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+ Object.defineProperty(WritableState.prototype, 'buffer', {
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+ get: internalUtil.deprecate(function () {
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+ return this.getBuffer();
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+ }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
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+ });
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+ } catch (_) {}
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+})();
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+
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+// Test _writableState for inheritance to account for Duplex streams,
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+// whose prototype chain only points to Readable.
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+var realHasInstance;
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+if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
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+ realHasInstance = Function.prototype[Symbol.hasInstance];
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+ Object.defineProperty(Writable, Symbol.hasInstance, {
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+ value: function (object) {
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+ if (realHasInstance.call(this, object)) return true;
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+ if (this !== Writable) return false;
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+
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+ return object && object._writableState instanceof WritableState;
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+ }
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+ });
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+} else {
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+ realHasInstance = function (object) {
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+ return object instanceof this;
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+ };
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+}
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+
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+function Writable(options) {
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+ Duplex = Duplex || require('./_stream_duplex');
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+
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+ // Writable ctor is applied to Duplexes, too.
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+ // `realHasInstance` is necessary because using plain `instanceof`
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+ // would return false, as no `_writableState` property is attached.
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+
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+ // Trying to use the custom `instanceof` for Writable here will also break the
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+ // Node.js LazyTransform implementation, which has a non-trivial getter for
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+ // `_writableState` that would lead to infinite recursion.
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+ if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {
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+ return new Writable(options);
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+ }
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+
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+ this._writableState = new WritableState(options, this);
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+
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+ // legacy.
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+ this.writable = true;
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+
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+ if (options) {
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+ if (typeof options.write === 'function') this._write = options.write;
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+
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+ if (typeof options.writev === 'function') this._writev = options.writev;
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+
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+ if (typeof options.destroy === 'function') this._destroy = options.destroy;
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+
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+ if (typeof options.final === 'function') this._final = options.final;
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+ }
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+
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+ Stream.call(this);
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+}
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+
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+// Otherwise people can pipe Writable streams, which is just wrong.
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+Writable.prototype.pipe = function () {
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+ this.emit('error', new Error('Cannot pipe, not readable'));
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+};
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+
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+function writeAfterEnd(stream, cb) {
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+ var er = new Error('write after end');
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+ // TODO: defer error events consistently everywhere, not just the cb
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+ stream.emit('error', er);
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+ pna.nextTick(cb, er);
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+}
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+
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+// Checks that a user-supplied chunk is valid, especially for the particular
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+// mode the stream is in. Currently this means that `null` is never accepted
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+// and undefined/non-string values are only allowed in object mode.
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+function validChunk(stream, state, chunk, cb) {
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+ var valid = true;
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+ var er = false;
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+
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+ if (chunk === null) {
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+ er = new TypeError('May not write null values to stream');
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+ } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
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+ er = new TypeError('Invalid non-string/buffer chunk');
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+ }
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+ if (er) {
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+ stream.emit('error', er);
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+ pna.nextTick(cb, er);
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+ valid = false;
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+ }
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+ return valid;
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+}
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+
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+Writable.prototype.write = function (chunk, encoding, cb) {
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+ var state = this._writableState;
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+ var ret = false;
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+ var isBuf = !state.objectMode && _isUint8Array(chunk);
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+
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+ if (isBuf && !Buffer.isBuffer(chunk)) {
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+ chunk = _uint8ArrayToBuffer(chunk);
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+ }
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+
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+ if (typeof encoding === 'function') {
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+ cb = encoding;
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+ encoding = null;
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+ }
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+
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+ if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
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+
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+ if (typeof cb !== 'function') cb = nop;
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+
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+ if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
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+ state.pendingcb++;
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+ ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
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+ }
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+
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+ return ret;
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+};
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+
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+Writable.prototype.cork = function () {
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+ var state = this._writableState;
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+
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+ state.corked++;
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+};
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+
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+Writable.prototype.uncork = function () {
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+ var state = this._writableState;
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+
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+ if (state.corked) {
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+ state.corked--;
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+
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+ if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
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+ }
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+};
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+
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+Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
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+ // node::ParseEncoding() requires lower case.
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+ if (typeof encoding === 'string') encoding = encoding.toLowerCase();
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+ if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
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+ this._writableState.defaultEncoding = encoding;
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+ return this;
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+};
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+
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+function decodeChunk(state, chunk, encoding) {
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+ if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
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+ chunk = Buffer.from(chunk, encoding);
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+ }
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+ return chunk;
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+}
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+
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+Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
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+ // making it explicit this property is not enumerable
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+ // because otherwise some prototype manipulation in
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+ // userland will fail
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+ enumerable: false,
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+ get: function () {
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+ return this._writableState.highWaterMark;
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+ }
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+});
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+
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+// if we're already writing something, then just put this
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+// in the queue, and wait our turn. Otherwise, call _write
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+// If we return false, then we need a drain event, so set that flag.
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+function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
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+ if (!isBuf) {
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+ var newChunk = decodeChunk(state, chunk, encoding);
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+ if (chunk !== newChunk) {
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+ isBuf = true;
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+ encoding = 'buffer';
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+ chunk = newChunk;
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+ }
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+ }
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+ var len = state.objectMode ? 1 : chunk.length;
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+
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+ state.length += len;
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+
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+ var ret = state.length < state.highWaterMark;
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+ // we must ensure that previous needDrain will not be reset to false.
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+ if (!ret) state.needDrain = true;
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+
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+ if (state.writing || state.corked) {
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+ var last = state.lastBufferedRequest;
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+ state.lastBufferedRequest = {
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+ chunk: chunk,
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+ encoding: encoding,
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+ isBuf: isBuf,
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+ callback: cb,
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+ next: null
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+ };
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+ if (last) {
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+ last.next = state.lastBufferedRequest;
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+ } else {
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+ state.bufferedRequest = state.lastBufferedRequest;
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+ }
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|
|
+ state.bufferedRequestCount += 1;
|
|
|
+ } else {
|
|
|
+ doWrite(stream, state, false, len, chunk, encoding, cb);
|
|
|
+ }
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+function doWrite(stream, state, writev, len, chunk, encoding, cb) {
|
|
|
+ state.writelen = len;
|
|
|
+ state.writecb = cb;
|
|
|
+ state.writing = true;
|
|
|
+ state.sync = true;
|
|
|
+ if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
|
|
|
+ state.sync = false;
|
|
|
+}
|
|
|
+
|
|
|
+function onwriteError(stream, state, sync, er, cb) {
|
|
|
+ --state.pendingcb;
|
|
|
+
|
|
|
+ if (sync) {
|
|
|
+ // defer the callback if we are being called synchronously
|
|
|
+ // to avoid piling up things on the stack
|
|
|
+ pna.nextTick(cb, er);
|
|
|
+ // this can emit finish, and it will always happen
|
|
|
+ // after error
|
|
|
+ pna.nextTick(finishMaybe, stream, state);
|
|
|
+ stream._writableState.errorEmitted = true;
|
|
|
+ stream.emit('error', er);
|
|
|
+ } else {
|
|
|
+ // the caller expect this to happen before if
|
|
|
+ // it is async
|
|
|
+ cb(er);
|
|
|
+ stream._writableState.errorEmitted = true;
|
|
|
+ stream.emit('error', er);
|
|
|
+ // this can emit finish, but finish must
|
|
|
+ // always follow error
|
|
|
+ finishMaybe(stream, state);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+function onwriteStateUpdate(state) {
|
|
|
+ state.writing = false;
|
|
|
+ state.writecb = null;
|
|
|
+ state.length -= state.writelen;
|
|
|
+ state.writelen = 0;
|
|
|
+}
|
|
|
+
|
|
|
+function onwrite(stream, er) {
|
|
|
+ var state = stream._writableState;
|
|
|
+ var sync = state.sync;
|
|
|
+ var cb = state.writecb;
|
|
|
+
|
|
|
+ onwriteStateUpdate(state);
|
|
|
+
|
|
|
+ if (er) onwriteError(stream, state, sync, er, cb);else {
|
|
|
+ // Check if we're actually ready to finish, but don't emit yet
|
|
|
+ var finished = needFinish(state);
|
|
|
+
|
|
|
+ if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
|
|
|
+ clearBuffer(stream, state);
|
|
|
+ }
|
|
|
+
|
|
|
+ if (sync) {
|
|
|
+ /*<replacement>*/
|
|
|
+ asyncWrite(afterWrite, stream, state, finished, cb);
|
|
|
+ /*</replacement>*/
|
|
|
+ } else {
|
|
|
+ afterWrite(stream, state, finished, cb);
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+function afterWrite(stream, state, finished, cb) {
|
|
|
+ if (!finished) onwriteDrain(stream, state);
|
|
|
+ state.pendingcb--;
|
|
|
+ cb();
|
|
|
+ finishMaybe(stream, state);
|
|
|
+}
|
|
|
+
|
|
|
+// Must force callback to be called on nextTick, so that we don't
|
|
|
+// emit 'drain' before the write() consumer gets the 'false' return
|
|
|
+// value, and has a chance to attach a 'drain' listener.
|
|
|
+function onwriteDrain(stream, state) {
|
|
|
+ if (state.length === 0 && state.needDrain) {
|
|
|
+ state.needDrain = false;
|
|
|
+ stream.emit('drain');
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// if there's something in the buffer waiting, then process it
|
|
|
+function clearBuffer(stream, state) {
|
|
|
+ state.bufferProcessing = true;
|
|
|
+ var entry = state.bufferedRequest;
|
|
|
+
|
|
|
+ if (stream._writev && entry && entry.next) {
|
|
|
+ // Fast case, write everything using _writev()
|
|
|
+ var l = state.bufferedRequestCount;
|
|
|
+ var buffer = new Array(l);
|
|
|
+ var holder = state.corkedRequestsFree;
|
|
|
+ holder.entry = entry;
|
|
|
+
|
|
|
+ var count = 0;
|
|
|
+ var allBuffers = true;
|
|
|
+ while (entry) {
|
|
|
+ buffer[count] = entry;
|
|
|
+ if (!entry.isBuf) allBuffers = false;
|
|
|
+ entry = entry.next;
|
|
|
+ count += 1;
|
|
|
+ }
|
|
|
+ buffer.allBuffers = allBuffers;
|
|
|
+
|
|
|
+ doWrite(stream, state, true, state.length, buffer, '', holder.finish);
|
|
|
+
|
|
|
+ // doWrite is almost always async, defer these to save a bit of time
|
|
|
+ // as the hot path ends with doWrite
|
|
|
+ state.pendingcb++;
|
|
|
+ state.lastBufferedRequest = null;
|
|
|
+ if (holder.next) {
|
|
|
+ state.corkedRequestsFree = holder.next;
|
|
|
+ holder.next = null;
|
|
|
+ } else {
|
|
|
+ state.corkedRequestsFree = new CorkedRequest(state);
|
|
|
+ }
|
|
|
+ state.bufferedRequestCount = 0;
|
|
|
+ } else {
|
|
|
+ // Slow case, write chunks one-by-one
|
|
|
+ while (entry) {
|
|
|
+ var chunk = entry.chunk;
|
|
|
+ var encoding = entry.encoding;
|
|
|
+ var cb = entry.callback;
|
|
|
+ var len = state.objectMode ? 1 : chunk.length;
|
|
|
+
|
|
|
+ doWrite(stream, state, false, len, chunk, encoding, cb);
|
|
|
+ entry = entry.next;
|
|
|
+ state.bufferedRequestCount--;
|
|
|
+ // if we didn't call the onwrite immediately, then
|
|
|
+ // it means that we need to wait until it does.
|
|
|
+ // also, that means that the chunk and cb are currently
|
|
|
+ // being processed, so move the buffer counter past them.
|
|
|
+ if (state.writing) {
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (entry === null) state.lastBufferedRequest = null;
|
|
|
+ }
|
|
|
+
|
|
|
+ state.bufferedRequest = entry;
|
|
|
+ state.bufferProcessing = false;
|
|
|
+}
|
|
|
+
|
|
|
+Writable.prototype._write = function (chunk, encoding, cb) {
|
|
|
+ cb(new Error('_write() is not implemented'));
|
|
|
+};
|
|
|
+
|
|
|
+Writable.prototype._writev = null;
|
|
|
+
|
|
|
+Writable.prototype.end = function (chunk, encoding, cb) {
|
|
|
+ var state = this._writableState;
|
|
|
+
|
|
|
+ if (typeof chunk === 'function') {
|
|
|
+ cb = chunk;
|
|
|
+ chunk = null;
|
|
|
+ encoding = null;
|
|
|
+ } else if (typeof encoding === 'function') {
|
|
|
+ cb = encoding;
|
|
|
+ encoding = null;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
|
|
|
+
|
|
|
+ // .end() fully uncorks
|
|
|
+ if (state.corked) {
|
|
|
+ state.corked = 1;
|
|
|
+ this.uncork();
|
|
|
+ }
|
|
|
+
|
|
|
+ // ignore unnecessary end() calls.
|
|
|
+ if (!state.ending && !state.finished) endWritable(this, state, cb);
|
|
|
+};
|
|
|
+
|
|
|
+function needFinish(state) {
|
|
|
+ return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
|
|
|
+}
|
|
|
+function callFinal(stream, state) {
|
|
|
+ stream._final(function (err) {
|
|
|
+ state.pendingcb--;
|
|
|
+ if (err) {
|
|
|
+ stream.emit('error', err);
|
|
|
+ }
|
|
|
+ state.prefinished = true;
|
|
|
+ stream.emit('prefinish');
|
|
|
+ finishMaybe(stream, state);
|
|
|
+ });
|
|
|
+}
|
|
|
+function prefinish(stream, state) {
|
|
|
+ if (!state.prefinished && !state.finalCalled) {
|
|
|
+ if (typeof stream._final === 'function') {
|
|
|
+ state.pendingcb++;
|
|
|
+ state.finalCalled = true;
|
|
|
+ pna.nextTick(callFinal, stream, state);
|
|
|
+ } else {
|
|
|
+ state.prefinished = true;
|
|
|
+ stream.emit('prefinish');
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+function finishMaybe(stream, state) {
|
|
|
+ var need = needFinish(state);
|
|
|
+ if (need) {
|
|
|
+ prefinish(stream, state);
|
|
|
+ if (state.pendingcb === 0) {
|
|
|
+ state.finished = true;
|
|
|
+ stream.emit('finish');
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return need;
|
|
|
+}
|
|
|
+
|
|
|
+function endWritable(stream, state, cb) {
|
|
|
+ state.ending = true;
|
|
|
+ finishMaybe(stream, state);
|
|
|
+ if (cb) {
|
|
|
+ if (state.finished) pna.nextTick(cb);else stream.once('finish', cb);
|
|
|
+ }
|
|
|
+ state.ended = true;
|
|
|
+ stream.writable = false;
|
|
|
+}
|
|
|
+
|
|
|
+function onCorkedFinish(corkReq, state, err) {
|
|
|
+ var entry = corkReq.entry;
|
|
|
+ corkReq.entry = null;
|
|
|
+ while (entry) {
|
|
|
+ var cb = entry.callback;
|
|
|
+ state.pendingcb--;
|
|
|
+ cb(err);
|
|
|
+ entry = entry.next;
|
|
|
+ }
|
|
|
+ if (state.corkedRequestsFree) {
|
|
|
+ state.corkedRequestsFree.next = corkReq;
|
|
|
+ } else {
|
|
|
+ state.corkedRequestsFree = corkReq;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+Object.defineProperty(Writable.prototype, 'destroyed', {
|
|
|
+ get: function () {
|
|
|
+ if (this._writableState === undefined) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ return this._writableState.destroyed;
|
|
|
+ },
|
|
|
+ set: function (value) {
|
|
|
+ // we ignore the value if the stream
|
|
|
+ // has not been initialized yet
|
|
|
+ if (!this._writableState) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ // backward compatibility, the user is explicitly
|
|
|
+ // managing destroyed
|
|
|
+ this._writableState.destroyed = value;
|
|
|
+ }
|
|
|
+});
|
|
|
+
|
|
|
+Writable.prototype.destroy = destroyImpl.destroy;
|
|
|
+Writable.prototype._undestroy = destroyImpl.undestroy;
|
|
|
+Writable.prototype._destroy = function (err, cb) {
|
|
|
+ this.end();
|
|
|
+ cb(err);
|
|
|
+};
|