Server : nginx/1.20.1 System : Linux ccpf-production-2021 5.4.0-148-generic #165-Ubuntu SMP Tue Apr 18 08:53:12 UTC 2023 x86_64 User : forge ( 1000) PHP Version : 7.4.21 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /lib/node_modules/gulp/node_modules/lead/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

'use strict';

var Writable = require('flush-write-stream');

function listenerCount(stream, evt) {
  return stream.listeners(evt).length;
}

function hasListeners(stream) {
  return !!(listenerCount(stream, 'readable') || listenerCount(stream, 'data'));
}

function sinker(file, enc, callback) {
  callback();
}

function sink(stream) {
  var sinkAdded = false;

  var sinkOptions = {
    objectMode: stream._readableState.objectMode,
  };

  var sinkStream = new Writable(sinkOptions, sinker);

  function addSink() {
    if (sinkAdded) {
      return;
    }

    if (hasListeners(stream)) {
      return;
    }

    sinkAdded = true;
    stream.pipe(sinkStream);
  }

  function removeSink(evt) {
    if (evt !== 'readable' && evt !== 'data') {
      return;
    }

    if (hasListeners(stream)) {
      sinkAdded = false;
      stream.unpipe(sinkStream);
    }
  }

  stream.on('newListener', removeSink);
  stream.on('removeListener', removeSink);
  stream.on('removeListener', addSink);

  // Sink the stream to start flowing
  // Do this on nextTick, it will flow at slowest speed of piped streams
  process.nextTick(addSink);

  return stream;
}

module.exports = sink;