| // Copyright Joyent, Inc. and other Node contributors. |
| // |
| // Permission is hereby granted, free of charge, to any person obtaining a |
| // copy of this software and associated documentation files (the |
| // "Software"), to deal in the Software without restriction, including |
| // without limitation the rights to use, copy, modify, merge, publish, |
| // distribute, sublicense, and/or sell copies of the Software, and to permit |
| // persons to whom the Software is furnished to do so, subject to the |
| // following conditions: |
| // |
| // The above copyright notice and this permission notice shall be included |
| // in all copies or substantial portions of the Software. |
| // |
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN |
| // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
| // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| // USE OR OTHER DEALINGS IN THE SOFTWARE. |
| |
| var common = require('../common'); |
| var fs = require('fs'); |
| var assert = require('assert'); |
| var join = require('path').join; |
| |
| var filename = join(common.tmpDir, 'out.txt'); |
| |
| try { |
| fs.unlinkSync(filename); |
| } catch (e) { |
| // might not exist, that's okay. |
| } |
| |
| var fd = fs.openSync(filename, 'w'); |
| |
| var line = 'aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n'; |
| |
| var N = 10240, complete = 0; |
| for (var i = 0; i < N; i++) { |
| // Create a new buffer for each write. Before the write is actually |
| // executed by the thread pool, the buffer will be collected. |
| var buffer = new Buffer(line); |
| fs.write(fd, buffer, 0, buffer.length, null, function(er, written) { |
| complete++; |
| if (complete === N) { |
| fs.closeSync(fd); |
| var s = fs.createReadStream(filename); |
| s.on('data', testBuffer); |
| } |
| }); |
| } |
| |
| var bytesChecked = 0; |
| |
| function testBuffer(b) { |
| for (var i = 0; i < b.length; i++) { |
| bytesChecked++; |
| if (b[i] !== 'a'.charCodeAt(0) && b[i] !== '\n'.charCodeAt(0)) { |
| throw new Error('invalid char ' + i + ',' + b[i]); |
| } |
| } |
| } |
| |
| process.on('exit', function() { |
| // Probably some of the writes are going to overlap, so we can't assume |
| // that we get (N * line.length). Let's just make sure we've checked a |
| // few... |
| assert.ok(bytesChecked > 1000); |
| }); |
| |