Permalink
Cannot retrieve contributors at this time
1 lines (1 sloc)
6.25 KB
Name already in use
A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
codeql-action/node_modules/@azure/storage-blob/dist-esm/storage-common/src/PooledBuffer.js.map
Go to fileThis commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
{"version":3,"file":"PooledBuffer.js","sourceRoot":"","sources":["../../../../storage-common/src/PooledBuffer.ts"],"names":[],"mappings":"AAAA,uCAAuC;AACvC,kCAAkC;AAElC,OAAO,EAAE,aAAa,EAAE,MAAM,iBAAiB,CAAC;AAGhD;;GAEG;AACH,6DAA6D;AAC7D,MAAM,eAAe,GAAG,OAAO,CAAC,QAAQ,CAAC,CAAC,SAAS,CAAC,UAAU,CAAC;AAE/D;;;;;;;GAOG;AACH,MAAM,OAAO,YAAY;IA4CvB,YAAY,QAAgB,EAAE,OAAkB,EAAE,WAAoB;QA3CtE;;;WAGG;QACK,YAAO,GAAa,EAAE,CAAC;QAwC7B,IAAI,CAAC,QAAQ,GAAG,QAAQ,CAAC;QACzB,IAAI,CAAC,KAAK,GAAG,CAAC,CAAC;QAEf,WAAW;QACX,MAAM,SAAS,GAAG,IAAI,CAAC,IAAI,CAAC,QAAQ,GAAG,eAAe,CAAC,CAAC;QACxD,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,SAAS,EAAE,CAAC,EAAE,EAAE;YAClC,IAAI,GAAG,GAAG,CAAC,KAAK,SAAS,GAAG,CAAC,CAAC,CAAC,CAAC,QAAQ,GAAG,eAAe,CAAC,CAAC,CAAC,eAAe,CAAC;YAC7E,IAAI,GAAG,KAAK,CAAC,EAAE;gBACb,GAAG,GAAG,eAAe,CAAC;aACvB;YACD,IAAI,CAAC,OAAO,CAAC,IAAI,CAAC,MAAM,CAAC,WAAW,CAAC,GAAG,CAAC,CAAC,CAAC;SAC5C;QAED,IAAI,OAAO,EAAE;YACX,IAAI,CAAC,IAAI,CAAC,OAAO,EAAE,WAAY,CAAC,CAAC;SAClC;IACH,CAAC;IA5CD;;OAEG;IACH,IAAW,IAAI;QACb,OAAO,IAAI,CAAC,KAAK,CAAC;IACpB,CAAC;IAyCD;;;;;;;;OAQG;IACI,IAAI,CAAC,OAAiB,EAAE,WAAmB;QAChD,IAAI,CAAC,KAAK,GAAG,IAAI,CAAC,GAAG,CAAC,IAAI,CAAC,QAAQ,EAAE,WAAW,CAAC,CAAC;QAElD,IAAI,CAAC,GAAG,CAAC,EACP,CAAC,GAAG,CAAC,EACL,YAAY,GAAG,CAAC,EAChB,YAAY,GAAG,CAAC,EAChB,cAAc,GAAG,CAAC,CAAC;QACrB,OAAO,cAAc,GAAG,IAAI,CAAC,KAAK,EAAE;YAClC,MAAM,MAAM,GAAG,OAAO,CAAC,CAAC,CAAC,CAAC;YAC1B,MAAM,MAAM,GAAG,IAAI,CAAC,OAAO,CAAC,CAAC,CAAC,CAAC;YAC/B,MAAM,SAAS,GAAG,MAAM,CAAC,IAAI,CAAC,MAAM,EAAE,YAAY,EAAE,YAAY,CAAC,CAAC;YAElE,cAAc,IAAI,SAAS,CAAC;YAC5B,YAAY,IAAI,SAAS,CAAC;YAC1B,YAAY,IAAI,SAAS,CAAC;YAC1B,IAAI,YAAY,KAAK,MAAM,CAAC,MAAM,EAAE;gBAClC,CAAC,EAAE,CAAC;gBACJ,YAAY,GAAG,CAAC,CAAC;aAClB;YACD,IAAI,YAAY,KAAK,MAAM,CAAC,MAAM,EAAE;gBAClC,CAAC,EAAE,CAAC;gBACJ,YAAY,GAAG,CAAC,CAAC;aAClB;SACF;QAED,mCAAmC;QACnC,OAAO,CAAC,MAAM,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC;QACrB,IAAI,OAAO,CAAC,MAAM,GAAG,CAAC,EAAE;YACtB,OAAO,CAAC,CAAC,CAAC,GAAG,OAAO,CAAC,CAAC,CAAC,CAAC,KAAK,CAAC,YAAY,CAAC,CAAC;SAC7C;IACH,CAAC;IAED;;;OAGG;IACI,iBAAiB;QACtB,OAAO,IAAI,aAAa,CAAC,IAAI,CAAC,OAAO,EAAE,IAAI,CAAC,IAAI,CAAC,CAAC;IACpD,CAAC;CACF","sourcesContent":["// Copyright (c) Microsoft Corporation.\n// Licensed under the MIT license.\n\nimport { BuffersStream } from \"./BuffersStream\";\nimport { Readable } from \"stream\";\n\n/**\n * maxBufferLength is max size of each buffer in the pooled buffers.\n */\n// Can't use import as Typescript doesn't recognize \"buffer\".\nconst maxBufferLength = require(\"buffer\").constants.MAX_LENGTH;\n\n/**\n * This class provides a buffer container which conceptually has no hard size limit.\n * It accepts a capacity, an array of input buffers and the total length of input data.\n * It will allocate an internal \"buffer\" of the capacity and fill the data in the input buffers\n * into the internal \"buffer\" serially with respect to the total length.\n * Then by calling PooledBuffer.getReadableStream(), you can get a readable stream\n * assembled from all the data in the internal \"buffer\".\n */\nexport class PooledBuffer {\n /**\n * Internal buffers used to keep the data.\n * Each buffer has a length of the maxBufferLength except last one.\n */\n private buffers: Buffer[] = [];\n\n /**\n * The total size of internal buffers.\n */\n private readonly capacity: number;\n\n /**\n * The total size of data contained in internal buffers.\n */\n private _size: number;\n\n /**\n * The size of the data contained in the pooled buffers.\n */\n public get size(): number {\n return this._size;\n }\n\n /**\n * Creates an instance of PooledBuffer with given capacity.\n * Internal buffers are allocated but contains no data.\n * Users may call the {@link PooledBuffer.fill} method to fill this\n * pooled buffer with data.\n *\n * @param capacity - Total capacity of the internal buffers\n */\n constructor(capacity: number);\n\n /**\n * Creates an instance of PooledBuffer with given capacity.\n * Internal buffers are allocated and filled with data in the input buffers serially\n * with respect to the total length.\n *\n * @param capacity - Total capacity of the internal buffers\n * @param buffers - Input buffers containing the data to be filled in the pooled buffer\n * @param totalLength - Total length of the data to be filled in.\n */\n constructor(capacity: number, buffers: Buffer[], totalLength: number);\n constructor(capacity: number, buffers?: Buffer[], totalLength?: number) {\n this.capacity = capacity;\n this._size = 0;\n\n // allocate\n const bufferNum = Math.ceil(capacity / maxBufferLength);\n for (let i = 0; i < bufferNum; i++) {\n let len = i === bufferNum - 1 ? capacity % maxBufferLength : maxBufferLength;\n if (len === 0) {\n len = maxBufferLength;\n }\n this.buffers.push(Buffer.allocUnsafe(len));\n }\n\n if (buffers) {\n this.fill(buffers, totalLength!);\n }\n }\n\n /**\n * Fill the internal buffers with data in the input buffers serially\n * with respect to the total length and the total capacity of the internal buffers.\n * Data copied will be shift out of the input buffers.\n *\n * @param buffers - Input buffers containing the data to be filled in the pooled buffer\n * @param totalLength - Total length of the data to be filled in.\n *\n */\n public fill(buffers: Buffer[], totalLength: number) {\n this._size = Math.min(this.capacity, totalLength);\n\n let i = 0,\n j = 0,\n targetOffset = 0,\n sourceOffset = 0,\n totalCopiedNum = 0;\n while (totalCopiedNum < this._size) {\n const source = buffers[i];\n const target = this.buffers[j];\n const copiedNum = source.copy(target, targetOffset, sourceOffset);\n\n totalCopiedNum += copiedNum;\n sourceOffset += copiedNum;\n targetOffset += copiedNum;\n if (sourceOffset === source.length) {\n i++;\n sourceOffset = 0;\n }\n if (targetOffset === target.length) {\n j++;\n targetOffset = 0;\n }\n }\n\n // clear copied from source buffers\n buffers.splice(0, i);\n if (buffers.length > 0) {\n buffers[0] = buffers[0].slice(sourceOffset);\n }\n }\n\n /**\n * Get the readable stream assembled from all the data in the internal buffers.\n *\n */\n public getReadableStream(): Readable {\n return new BuffersStream(this.buffers, this.size);\n }\n}\n"]} |