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配置文件写锁

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This commit is contained in:
ckcz123 2020-10-21 11:43:11 +08:00
parent 78f4ee4ad6
commit 4fbca892d2
1 changed files with 14 additions and 3 deletions
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17
_server/editor_config.js
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@ -1,5 +1,6 @@
function editor_config() {
this.address = "_server/config.json";
this._isWriting = false;
}
editor_config.prototype.load = function(callback) {
@ -27,8 +28,18 @@ editor_config.prototype.set = function(key, value, callback) {
}
editor_config.prototype.save = function(callback) {
fs.writeFile(this.address, JSON.stringify(this.config) ,'utf-8', function(e) {
if (e) console.error("写入配置文件失败");
// 读写锁防止写文件冲突
if (this._isWriting) return;
try {
this._isWriting = true;
fs.writeFile(this.address, JSON.stringify(this.config) ,'utf-8', function(e) {
this._isWriting = false;
if (e) console.error("写入配置文件失败");
if (callback instanceof Function) callback();
})
} catch (e) {
this._isWriting = false;
console.error(e);
if (callback instanceof Function) callback();
})
}
}