1. module rwlock
   1. function rwlock ()

module rwlock

function rwlock ()

• description and source-code

  rwlock = function (){"use strict";function a(){this.readers=0,this.queue=[]}function b(b,c,f){var g;"function"!=typeof b?(e.hasOwnProperty
  (b)||(e[b]=new a),g=e[b]):(f=c,c=b,g=d),f||(f={});var h=null;f.hasOwnProperty("scope")&&(h=f.scope);var i=function(){var a=!1;return
   function(){a||(a=!0,g.readers--,g.queue.length&&g.queue[0]())}}();if(g.readers<0||g.queue.length){var j=!1;if(g.queue.push(function
  (){!j&&g.readers>=0&&(j=!0,g.queue.shift(),g.readers++,c.call(h,i),g.queue.length&&g.queue[0]())}),f.hasOwnProperty("timeout")){
  var k=null;f.hasOwnProperty("timeoutCallback")&&(k=f.timeoutCallback),setTimeout(function(){j||(j=!0,g.queue.shift(),k&&k.call(f
  .scope))},f.timeout)}}else g.readers++,c.call(f.scope,i)}function c(b,c,f){var g;"function"!=typeof b?(e.hasOwnProperty(b)||(e[b
  ]=new a),g=e[b]):(f=c,c=b,g=d),f||(f={});var h=null;f.hasOwnProperty("scope")&&(h=f.scope);var i=function(){var a=!1;return function
  (){a||(a=!0,g.readers=0,g.queue.length&&g.queue[0]())}}();if(g.readers||g.queue.length){var j=!1;if(g.queue.push(function(){j||g
  .readers||(j=!0,g.queue.shift(),g.readers=-1,c.call(f.scope,i))}),f.hasOwnProperty("timeout")){var k=null;f.hasOwnProperty("timeoutCallback
  ")&&(k=f.timeoutCallback),setTimeout(function(){j||(j=!0,g.queue.shift(),k&&k.call(h))},f.timeout)}}else g.readers=-1,c.call(f.scope
  ,i)}var d=new a,e={};this.readLock=b,this.writeLock=c,this.async={readLock:function(a,c,d){"function"!=typeof a?b(a,function(a){
  c.call(this,null,a)},d):(c=a,d=c,b(function(a){c.call(this,null,a)},d))},writeLock:function(a,b,d){"function"!=typeof a?c(a,function
  (a){b.call(this,null,a)},d):(b=a,d=b,c(function(a){b.call(this,null,a)},d))}}}

• example usage

  n/a