当我添加gzip支持时,我在nodejs中遇到了内存泄漏的问题。我已经编写了一些用于测试的代码。在下面的代码中,我使用 zlib,我不知道为什么我有内存泄漏。如何改进此代码以避免内存泄漏?有人可以帮助我吗?
var
zlib = require('zlib'),
crypto = require('crypto');
var cacheList = {
article: {},
};
var timeoutId1, timeoutId2
console.log('process.pid: '+ process.pid);
clean = function()
{
var time = new Date().getTime();
timeoutId1 = setTimeout(function() { clean() }, 5000);
var countDeleted = 0;
for (id in cacheList.article) {
if (cacheList.article[id] && cacheList.article[id].timeExpire + 5000 < time) {
delete cacheList.article[id];
countDeleted++;
}
}
console.log('deleted: ' + countDeleted);
}
run = function()
{
var time = new Date().getTime();
timeoutId1 = setTimeout(function() { run() }, 5);
var md5 = crypto.createHash('md5');
md5.update('' + time);
var id = md5.digest('hex');
//console.log('id: ' + id);
var text = id+id+id+id+id+id+id+id +id+id+id+id+id+id+id+id +id+id+id+id+id+id+id+id +id+id+id+id+id+id+id+id +id+id+id+id+id+id+id+id +id+id+id+id+id+id+id+id +id+id+id+id+id+id+id+id +id+id+id+id+id+id+id+id;
zlib.gzip(text, function(err, result) {
if (!err) {
cacheList.article[id] = {
timeExpire: time + 10000,
data: text,
datagzip: result,
};
}
});
}
timeoutId1 = setTimeout(function() { run() }, 3000);
timeoutId2 = setTimeout(function() { clean() }, 5000);
将
最后两行更改为
timeoutId1 = run()
timeoutId2 = clean()
由于您已经有调用 setTimeout 的函数,通过另一个 setTimeout,您告诉它运行该函数的另一个实例(该实例反过来调用自身,所以现在您让它运行两次,依此类推)。