tar-iterator/dist/esm/lib/Lock.js

Extract contents from tar archive type using an iterator API using streams or paths. Use stream interface and pipe transforms to add decompression algorithms

import BaseIterator from 'extract-base-iterator';
let Lock = class Lock {
    retain() {
        this.count++;
    }
    release() {
        if (this.count <= 0) throw new Error('Lock count is corrupted');
        this.count--;
        if (this.count === 0) this.__destroy();
    }
    __destroy() {
        if (this.iterator) {
            BaseIterator.prototype.end.call(this.iterator, this.err || null);
            this.iterator = null;
        }
    }
    constructor(){
        this.count = 1;
        // members
        this.iterator = null;
        this.err = null;
    }
};
export { Lock as default };