metaapi.cloud-sdk
Version:
SDK for MetaApi, a professional cloud forex API which includes MetaTrader REST API and MetaTrader websocket API. Supports both MetaTrader 5 (MT5) and MetaTrader 4 (MT4). CopyFactory copy trading API included. (https://metaapi.cloud)
89 lines (88 loc) • 7.58 kB
JavaScript
;
function _define_property(obj, key, value) {
if (key in obj) {
Object.defineProperty(obj, key, {
value: value,
enumerable: true,
configurable: true,
writable: true
});
} else {
obj[key] = value;
}
return obj;
}
let UsageCounter = class UsageCounter {
/**
* Acquires a usage. If already acquired by specified usage, the count won't be incremented
* @param key key to count
* @param usage usage
*/ acquire(key, usage) {
var _this__usages, _key;
(_this__usages = this._usages)[_key = key] || (_this__usages[_key] = new Set());
this._usages[key].add(usage);
}
/**
* Releases a usage. If already not acquired by specified usage, the counte won't be decremented
* @param key key to count
* @param usage usage
*/ release(key, usage) {
var _this__usages_key, _this__usages_key1;
(_this__usages_key = this._usages[key]) === null || _this__usages_key === void 0 ? void 0 : _this__usages_key.delete(usage);
if (!((_this__usages_key1 = this._usages[key]) === null || _this__usages_key1 === void 0 ? void 0 : _this__usages_key1.size)) {
delete this._usages[key];
}
}
/**
* Releases all usages of a key
* @param key key to release
*/ releaseAll(key) {
for (let usage of this.getUsages(key)){
this.release(key, usage);
}
}
/**
* Returns whether a key is currently in use
* @param key key to check
* @returns is in use
*/ isInUse(key) {
var _this__usages_key;
return !!((_this__usages_key = this._usages[key]) === null || _this__usages_key === void 0 ? void 0 : _this__usages_key.size);
}
/**
* Returns key usage IDs
* @param key key to count
* @returns usages
*/ getUsages(key) {
return this._usages[key] || new Set();
}
/**
* Returns if key is acquired by usage
* @param key key to check
* @param usage usage
* @returns is acquired
*/ isAcquiredBy(key, usage) {
var _this__usages_key;
return !!((_this__usages_key = this._usages[key]) === null || _this__usages_key === void 0 ? void 0 : _this__usages_key.has(usage));
}
/**
* Returns keys which are acquired by specific usage
* @param usage usage
* @returns keys acquired by the specified usage
*/ getAcquiredBy(usage) {
let result = [];
for (let [key, usages] of Object.entries(this._usages)){
if (usages.has(usage)) {
result.push(key);
}
}
return result;
}
constructor(){
_define_property(this, "_usages", {});
}
};
/**
* Util class to track usages of something
*/ export { UsageCounter as default };
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