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'use strict';
// Flags: --expose_gc
var common = require('../common');
var fs = require('fs');
var testFileName = require('path').join(common.tmpDir, 'GH-814_test.txt');
var testFD = fs.openSync(testFileName, 'w');
console.error(testFileName + '\n');
var tailProc = require('child_process').spawn('tail', ['-f', testFileName]);
tailProc.stdout.on('data', tailCB);
function tailCB(data) {
PASS = data.toString().indexOf('.') < 0;
if (PASS) {
//console.error('i');
} else {
console.error('[FAIL]\n DATA -> ');
console.error(data);
console.error('\n');
throw new Error('Buffers GC test -> FAIL');
}
}
var PASS = true;
var bufPool = [];
var kBufSize = 16 * 1024 * 1024;
var neverWrittenBuffer = newBuffer(kBufSize, 0x2e); //0x2e === '.'
var timeToQuit = Date.now() + 5e3; //Test should last no more than this.
writer();
function writer() {
if (PASS) {
if (Date.now() > timeToQuit) {
setTimeout(function() {
process.kill(tailProc.pid);
console.error('\nBuffers GC test -> PASS (OK)\n');
}, 555);
} else {
fs.write(testFD, newBuffer(kBufSize, 0x61), 0, kBufSize, -1, writerCB);
gc();
gc();
gc();
gc();
gc();
gc();
var nuBuf = Buffer.allocUnsafe(kBufSize);
neverWrittenBuffer.copy(nuBuf);
if (bufPool.push(nuBuf) > 100) {
bufPool.length = 0;
}
process.nextTick(writer);
//console.error('o');
}
}
}
function writerCB(err, written) {
//console.error('cb.');
if (err) {
throw err;
}
}
// ******************* UTILITIES
function newBuffer(size, value) {
var buffer = Buffer.allocUnsafe(size);
while (size--) {
buffer[size] = value;
}
buffer[buffer.length - 1] = 0x0d;
buffer[buffer.length - 1] = 0x0a;
return buffer;
}
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