jkdb/jkdb.min.js

javascript interface for kdb+/q

"use strict";var e=require("buffer"),t=require("events"),r=require("net"),n=require("tls");function i(e){return i="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e},i(e)}function a(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,(i=n.key,a=void 0,"symbol"==typeof(a=function(e,t){if("object"!=typeof e||null===e)return e;var r=e[Symbol.toPrimitive];if(void 0!==r){var n=r.call(e,t||"default");if("object"!=typeof n)return n;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(i,"string"))?a:String(a)),n)}var i,a}function o(e){return o=Object.setPrototypeOf?Object.getPrototypeOf.bind():function(e){return e.__proto__||Object.getPrototypeOf(e)},o(e)}function s(e,t){return s=Object.setPrototypeOf?Object.setPrototypeOf.bind():function(e,t){return e.__proto__=t,e},s(e,t)}function c(e,t){if(t&&("object"==typeof t||"function"==typeof t))return t;if(void 0!==t)throw new TypeError("Derived constructors may only return object or undefined");return function(e){if(void 0===e)throw new ReferenceError("this hasn't been initialised - 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Wrong Credentials?"))})),t.once("error",(function(r){t.end(),e(r)})),i.auth(t,e)};(t=this.enableTLS?n.connect(this.port,this.host,{rejectUnauthorized:!1},a):r.connect(this.port,this.host,a)).once("error",(function(t){return e(t)}))}},{key:"close",value:function(e){this.socket.once("close",(function(){e&&e()})),this.socket.end()}},{key:"incomingMsgHandler",value:function(t){if(this.msgBuffer.length>8)t.copy(this.msgBuffer,this.msgOffset),this.msgOffset+=t.length;else if(0===this.msgBuffer.length&&t.length>=8){var r=t.readUInt32LE(4);if(r>t.length)return this.msgBuffer=e.Buffer.alloc(r),t.copy(this.msgBuffer),void(this.msgOffset=t.length);this.msgBuffer=t.subarray(0,r),this.msgOffset=t.length}else if(this.msgBuffer.length+t.length>=8){var n=e.Buffer.alloc(8);this.msgBuffer.copy(n),t.copy(n,this.msgBuffer.length);var i=n.readUInt32LE(4);this.msgBuffer=e.Buffer.alloc(i),n.copy(this.msgBuffer),t.copy(this.msgBuffer,this.msgBuffer.length+t.length-8),this.msgOffset=this.msgBuffer.length+t.length}else{var a=e.Buffer.alloc(this.msgBuffer.length+t.length);this.msgBuffer.copy(a),t.copy(a,this.msgBuffer.length),this.msgBuffer=a,this.msgOffset=0}for(;this.msgOffset>0&&this.msgOffset>=this.msgBuffer.length;){var o=void 0,s=void 0;try{o=R.deserialize(this.msgBuffer,this.useBigInt,this.includeNanosecond,this.dateToMillisecond),s=null}catch(e){o=null,s=e}if(2===this.msgBuffer.readUInt8(1)?this.callbacks.shift()(s,o):0===this.msgBuffer.readUInt8(1)?!s&&Array.isArray(o)&&"upd"===o[0]&&this.emit("upd",o):this.socket.write(R.ACK),this.msgOffset>this.msgBuffer.length){var c=t.subarray(t.length+this.msgBuffer.length-this.msgOffset);if(c.length>=8){var u=c.readUInt32LE(4);if(u>c.length){var f=e.Buffer.alloc(u);c.copy(f),this.msgBuffer=f}else this.msgBuffer=c;this.msgOffset=c.length}else this.msgBuffer=c,this.msgOffset=0}else this.msgBuffer=e.Buffer.alloc(0),this.msgOffset=0}}},{key:"sync",value:function(e,t){var r=this;if("function"!=typeof t)throw new Error("Expecting a callback function as last param");if(!e||Array.isArray(e)&&0===e.length)this.callbacks.push(t);else{var n=R.serialize(e);n.writeUInt8(1,1),this.socket.write(n,(function(){return r.callbacks.push(t)}))}}},{key:"asyn",value:function(e,t){var r=R.serialize(e);r.writeUInt8(1,0),t?this.socket.write(r,t):this.socket.write(r)}}])&&a(o.prototype,c),f&&a(o,f),Object.defineProperty(o,"prototype",{writable:!1}),h}();exports.QConnection=C;