diff options
Diffstat (limited to 'js/src/Ice/browser/Buffer.js')
-rw-r--r-- | js/src/Ice/browser/Buffer.js | 718 |
1 files changed, 357 insertions, 361 deletions
diff --git a/js/src/Ice/browser/Buffer.js b/js/src/Ice/browser/Buffer.js index 5d6c33393fe..54ef6475713 100644 --- a/js/src/Ice/browser/Buffer.js +++ b/js/src/Ice/browser/Buffer.js @@ -7,413 +7,409 @@ // // ********************************************************************** -(function(global){ - // - // IE 10 doesn't implement ArrayBuffer.slice - // - - if(!ArrayBuffer.prototype.slice) +var Ice = require("../Ice/ModuleRegistry").Ice; + +Ice.__M.require(module, "Ice", ["../Ice/Class", "../Ice/Long"]); + +var Long = Ice.Long; + +// +// IE 10 doesn't implement ArrayBuffer.slice +// + +if(!ArrayBuffer.prototype.slice) +{ + ArrayBuffer.prototype.slice = function (start, end) { - ArrayBuffer.prototype.slice = function (start, end) + var b = new Uint8Array(this); + end = end === undefined ? b.length : end; + var result = new Uint8Array(new ArrayBuffer(end - start)); + for(var i = 0, length = result.length; i < length; i++) { - var b = new Uint8Array(this); - end = end === undefined ? b.length : end; - var result = new Uint8Array(new ArrayBuffer(end - start)); - for(var i = 0, length = result.length; i < length; i++) - { - result[i] = b[i + start]; - } - return result.buffer; - }; - } - - var __BufferOverflowException__ = "BufferOverflowException"; - var __BufferUnderflowException__ = "BufferUnderflowException"; - var __IndexOutOfBoundsException__ = "IndexOutOfBoundsException"; - - // - // Buffer implementation to be used by web browsers, it uses ArrayBuffer as - // the store. - // - - require("Ice/Class"); - require("Ice/Long"); - - var Ice = global.Ice || Ice; - var Long = Ice.Long; + result[i] = b[i + start]; + } + return result.buffer; + }; +} - var Buffer = Ice.Class({ - __init__: function(buffer) +var __BufferOverflowException__ = "BufferOverflowException"; +var __BufferUnderflowException__ = "BufferUnderflowException"; +var __IndexOutOfBoundsException__ = "IndexOutOfBoundsException"; + +// +// Buffer implementation to be used by web browsers, it uses ArrayBuffer as +// the store. +// +var Buffer = Ice.Class({ + __init__: function(buffer) + { + if(buffer !== undefined) { - if(buffer !== undefined) - { - this.b = buffer; - this.v = new DataView(this.b); - } - else - { - this.b = null; // ArrayBuffer - this.v = null; // DataView - } - this._position = 0; - this._limit = 0; - this._shrinkCounter = 0; - }, - empty: function() + this.b = buffer; + this.v = new DataView(this.b); + } + else { - return this._limit === 0; - }, - resize: function(n) + this.b = null; // ArrayBuffer + this.v = null; // DataView + } + this._position = 0; + this._limit = 0; + this._shrinkCounter = 0; + }, + empty: function() + { + return this._limit === 0; + }, + resize: function(n) + { + if(n === 0) { - if(n === 0) - { - this.clear(); - } - else if(n > this.capacity) - { - this.reserve(n); - } - this._limit = n; - }, - clear: function() - { - this.b = null; - this.v = null; - this._position = 0; - this._limit = 0; - }, - // - // Call expand(n) to add room for n additional bytes. Note that expand() - // examines the current position of the buffer first; we don't want to - // expand the buffer if the caller is writing to a location that is - // already in the buffer. - // - expand: function(n) + this.clear(); + } + else if(n > this.capacity) { - var sz = this.capacity === 0 ? n : this._position + n; - if(sz > this._limit) - { - this.resize(sz); - } - }, - reset: function() + this.reserve(n); + } + this._limit = n; + }, + clear: function() + { + this.b = null; + this.v = null; + this._position = 0; + this._limit = 0; + }, + // + // Call expand(n) to add room for n additional bytes. Note that expand() + // examines the current position of the buffer first; we don't want to + // expand the buffer if the caller is writing to a location that is + // already in the buffer. + // + expand: function(n) + { + var sz = this.capacity === 0 ? n : this._position + n; + if(sz > this._limit) { - if(this._limit > 0 && this._limit * 2 < this.capacity) - { - // - // If the current buffer size is smaller than the - // buffer capacity, we shrink the buffer memory to the - // current size. This is to avoid holding on to too much - // memory if it's not needed anymore. - // - if(++this._shrinkCounter > 2) - { - this.reserve(this._limit); - this._shrinkCounter = 0; - } - } - else + this.resize(sz); + } + }, + reset: function() + { + if(this._limit > 0 && this._limit * 2 < this.capacity) + { + // + // If the current buffer size is smaller than the + // buffer capacity, we shrink the buffer memory to the + // current size. This is to avoid holding on to too much + // memory if it's not needed anymore. + // + if(++this._shrinkCounter > 2) { + this.reserve(this._limit); this._shrinkCounter = 0; } - this._limit = 0; - this._position = 0; - }, - reserve: function(n) + } + else { - if(n > this.capacity) - { - var capacity = Math.max(n, 2 * this.capacity); - capacity = Math.max(1024, capacity); - if(!this.b) - { - this.b = new ArrayBuffer(capacity); - } - else - { - var b = new Uint8Array(capacity); - b.set(new Uint8Array(this.b)); - this.b = b.buffer; - } - this.v = new DataView(this.b); - } - else if(n < this.capacity) + this._shrinkCounter = 0; + } + this._limit = 0; + this._position = 0; + }, + reserve: function(n) + { + if(n > this.capacity) + { + var capacity = Math.max(n, 2 * this.capacity); + capacity = Math.max(1024, capacity); + if(!this.b) { - this.b = this.b.slice(0, this.capacity); - this.v = new DataView(this.b); + this.b = new ArrayBuffer(capacity); } else { - return; + var b = new Uint8Array(capacity); + b.set(new Uint8Array(this.b)); + this.b = b.buffer; } - }, - put: function(v) + this.v = new DataView(this.b); + } + else if(n < this.capacity) { - if(this._position === this._limit) - { - throw new Error(__BufferOverflowException__); - } - this.v.setUint8(this._position, v); - this._position++; - }, - putAt: function(i, v) + this.b = this.b.slice(0, this.capacity); + this.v = new DataView(this.b); + } + else { - if(i >= this._limit) - { - throw new Error(__IndexOutOfBoundsException__); - } - this.v.setUint8(i, v); - }, - putArray: function(v) + return; + } + }, + put: function(v) + { + if(this._position === this._limit) { - if(v.byteLength > 0) - { - //Expects an Uint8Array - if(this._position + v.length > this._limit) - { - throw new Error(__BufferOverflowException__); - } - new Uint8Array(this.b, 0, this.b.byteLength).set(v, this._position); - this._position += v.byteLength; - } - }, - putShort: function(v) + throw new Error(__BufferOverflowException__); + } + this.v.setUint8(this._position, v); + this._position++; + }, + putAt: function(i, v) + { + if(i >= this._limit) { - if(this._position + 2 > this._limit) - { - throw new Error(__BufferOverflowException__); - } - this.v.setInt16(this._position, v, true); - this._position += 2; - }, - putInt: function(v) + throw new Error(__IndexOutOfBoundsException__); + } + this.v.setUint8(i, v); + }, + putArray: function(v) + { + if(v.byteLength > 0) { - if(this._position + 4 > this._limit) + //Expects an Uint8Array + if(this._position + v.length > this._limit) { throw new Error(__BufferOverflowException__); - } - this.v.setInt32(this._position, v, true); - this._position += 4; - }, - putIntAt: function(i, v) + } + new Uint8Array(this.b, 0, this.b.byteLength).set(v, this._position); + this._position += v.byteLength; + } + }, + putShort: function(v) + { + if(this._position + 2 > this._limit) { - if(i + 4 > this._limit || i < 0) - { - throw new Error(__IndexOutOfBoundsException__); - } - this.v.setInt32(i, v, true); - }, - putFloat: function(v) + throw new Error(__BufferOverflowException__); + } + this.v.setInt16(this._position, v, true); + this._position += 2; + }, + putInt: function(v) + { + if(this._position + 4 > this._limit) { - if(this._position + 4 > this._limit) - { - throw new Error(__BufferOverflowException__); - } - this.v.setFloat32(this._position, v, true); - this._position += 4; - }, - putDouble: function(v) + throw new Error(__BufferOverflowException__); + } + this.v.setInt32(this._position, v, true); + this._position += 4; + }, + putIntAt: function(i, v) + { + if(i + 4 > this._limit || i < 0) { - if(this._position + 8 > this._limit) - { - throw new Error(__BufferOverflowException__); - } - this.v.setFloat64(this._position, v, true); - this._position += 8; - }, - putLong: function(v) + throw new Error(__IndexOutOfBoundsException__); + } + this.v.setInt32(i, v, true); + }, + putFloat: function(v) + { + if(this._position + 4 > this._limit) { - if(this._position + 8 > this._limit) - { - throw new Error(__BufferOverflowException__); - } - this.v.setInt32(this._position, v.low, true); - this._position += 4; - this.v.setInt32(this._position, v.high, true); - this._position += 4; - }, - writeString: function(stream, v) + throw new Error(__BufferOverflowException__); + } + this.v.setFloat32(this._position, v, true); + this._position += 4; + }, + putDouble: function(v) + { + if(this._position + 8 > this._limit) { - // - // Encode the string as utf8 - // - var encoded = unescape(encodeURIComponent(v)); - - stream.writeSize(encoded.length); - stream.expand(encoded.length); - this.putString(encoded, encoded.length); - }, - putString: function(v, sz) - { - if(this._position + sz > this._limit) - { - throw new Error(__BufferOverflowException__); - } - for(var i = 0; i < sz; ++i) - { - this.v.setUint8(this._position, v.charCodeAt(i)); - this._position++; - } - }, - get: function() + throw new Error(__BufferOverflowException__); + } + this.v.setFloat64(this._position, v, true); + this._position += 8; + }, + putLong: function(v) + { + if(this._position + 8 > this._limit) { - if(this._position >= this._limit) - { - throw new Error(__BufferUnderflowException__); - } - var v = this.v.getUint8(this._position); + throw new Error(__BufferOverflowException__); + } + this.v.setInt32(this._position, v.low, true); + this._position += 4; + this.v.setInt32(this._position, v.high, true); + this._position += 4; + }, + writeString: function(stream, v) + { + // + // Encode the string as utf8 + // + var encoded = unescape(encodeURIComponent(v)); + + stream.writeSize(encoded.length); + stream.expand(encoded.length); + this.putString(encoded, encoded.length); + }, + putString: function(v, sz) + { + if(this._position + sz > this._limit) + { + throw new Error(__BufferOverflowException__); + } + for(var i = 0; i < sz; ++i) + { + this.v.setUint8(this._position, v.charCodeAt(i)); this._position++; - return v; - }, - getAt: function(i) + } + }, + get: function() + { + if(this._position >= this._limit) { - if(i < 0 || i >= this._limit) - { - throw new Error(__IndexOutOfBoundsException__); - } - return this.v.getUint8(i); - }, - getArray: function(length) + throw new Error(__BufferUnderflowException__); + } + var v = this.v.getUint8(this._position); + this._position++; + return v; + }, + getAt: function(i) + { + if(i < 0 || i >= this._limit) { - if(this._position + length > this._limit) - { - throw new Error(__BufferUnderflowException__); - } - var buffer = this.b.slice(this._position, this._position + length); - this._position += length; - return new Uint8Array(buffer); - }, - getArrayAt: function(position, length) + throw new Error(__IndexOutOfBoundsException__); + } + return this.v.getUint8(i); + }, + getArray: function(length) + { + if(this._position + length > this._limit) { - if(position + length > this._limit) - { - throw new Error(__BufferUnderflowException__); - } - length = length === undefined ? (this.b.byteLength - position) : length; - return new Uint8Array(this.b.slice(position, position + length)); - }, - getShort: function() + throw new Error(__BufferUnderflowException__); + } + var buffer = this.b.slice(this._position, this._position + length); + this._position += length; + return new Uint8Array(buffer); + }, + getArrayAt: function(position, length) + { + if(position + length > this._limit) { - if(this._limit - this._position < 2) - { - throw new Error(__BufferUnderflowException__); - } - var v = this.v.getInt16(this._position, true); - this._position += 2; - return v; - }, - getInt: function() + throw new Error(__BufferUnderflowException__); + } + length = length === undefined ? (this.b.byteLength - position) : length; + return new Uint8Array(this.b.slice(position, position + length)); + }, + getShort: function() + { + if(this._limit - this._position < 2) { - if(this._limit - this._position < 4) - { - throw new Error(__BufferUnderflowException__); - } - var v = this.v.getInt32(this._position, true); - this._position += 4; - return v; - }, - getFloat: function() + throw new Error(__BufferUnderflowException__); + } + var v = this.v.getInt16(this._position, true); + this._position += 2; + return v; + }, + getInt: function() + { + if(this._limit - this._position < 4) { - if(this._limit - this._position < 4) - { - throw new Error(__BufferUnderflowException__); - } - var v = this.v.getFloat32(this._position, true); - this._position += 4; - return v; - }, - getDouble: function() + throw new Error(__BufferUnderflowException__); + } + var v = this.v.getInt32(this._position, true); + this._position += 4; + return v; + }, + getFloat: function() + { + if(this._limit - this._position < 4) { - if(this._limit - this._position < 8) - { - throw new Error(__BufferUnderflowException__); - } - var v = this.v.getFloat64(this._position, true); - this._position += 8; - return v; - }, - getLong: function() + throw new Error(__BufferUnderflowException__); + } + var v = this.v.getFloat32(this._position, true); + this._position += 4; + return v; + }, + getDouble: function() + { + if(this._limit - this._position < 8) { - if(this._limit - this._position < 8) - { - throw new Error(__BufferUnderflowException__); - } - var v = new Long(); - v.low = this.v.getInt32(this._position, true); - this._position += 4; - v.high = this.v.getInt32(this._position, true); - this._position += 4; - return v; - }, - getString: function(length) - { - if(this._position + length > this._limit) - { - throw new Error(__BufferUnderflowException__); - } - - var data = new DataView(this.b, this._position, length); - var s = ""; - - for(var i = 0; i < length; ++i) - { - s += String.fromCharCode(data.getUint8(i)); - } - this._position += length; - s = decodeURIComponent(escape(s)); - return s; + throw new Error(__BufferUnderflowException__); } - }); - - var prototype = Buffer.prototype; - - Object.defineProperty(prototype, "position", { - get: function() { return this._position; }, - set: function(position){ - if(position >= 0 && position <= this._limit) - { - this._position = position; - } + var v = this.v.getFloat64(this._position, true); + this._position += 8; + return v; + }, + getLong: function() + { + if(this._limit - this._position < 8) + { + throw new Error(__BufferUnderflowException__); } - }); - - Object.defineProperty(prototype, "limit", { - get: function() { return this._limit; }, - set: function(limit){ - if(limit <= this.capacity) - { - this._limit = limit; - if(this._position > limit) - { - this._position = limit; - } - } + var v = new Long(); + v.low = this.v.getInt32(this._position, true); + this._position += 4; + v.high = this.v.getInt32(this._position, true); + this._position += 4; + return v; + }, + getString: function(length) + { + if(this._position + length > this._limit) + { + throw new Error(__BufferUnderflowException__); + } + + var data = new DataView(this.b, this._position, length); + var s = ""; + + for(var i = 0; i < length; ++i) + { + s += String.fromCharCode(data.getUint8(i)); } - }); + this._position += length; + s = decodeURIComponent(escape(s)); + return s; + } +}); - Object.defineProperty(prototype, "capacity", { - get: function() { return this.b === null ? 0 : this.b.byteLength; } - }); +var prototype = Buffer.prototype; - Object.defineProperty(prototype, "remaining", { - get: function() { return this._limit - this._position; } - }); - - // - // Create a native buffer from an array of bytes. - // - Buffer.createNative = function(data) - { - if(data === undefined) +Object.defineProperty(prototype, "position", { + get: function() { return this._position; }, + set: function(position){ + if(position >= 0 && position <= this._limit) { - return new Uint8Array(0); + this._position = position; } - else + } +}); + +Object.defineProperty(prototype, "limit", { + get: function() { return this._limit; }, + set: function(limit){ + if(limit <= this.capacity) { - return new Uint8Array(data); + this._limit = limit; + if(this._position > limit) + { + this._position = limit; + } } - }; + } +}); + +Object.defineProperty(prototype, "capacity", { + get: function() { return this.b === null ? 0 : this.b.byteLength; } +}); + +Object.defineProperty(prototype, "remaining", { + get: function() { return this._limit - this._position; } +}); + +// +// Create a native buffer from an array of bytes. +// +Buffer.createNative = function(data) +{ + if(data === undefined) + { + return new Uint8Array(0); + } + else + { + return new Uint8Array(data); + } +}; - Ice.Buffer = Buffer; - global.Ice = Ice; -}(typeof (global) === "undefined" ? window : global)); +Ice.Buffer = Buffer; |