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Contents
/**
* Represents a disposable resource that only disposes its underlying disposable resource when all dependent disposable objects have been disposed.
*/
var RefCountDisposable = Rx.RefCountDisposable = (function () {
function InnerDisposable(disposable) {
this.disposable = disposable;
this.disposable.count++;
this.isInnerDisposed = false;
}
InnerDisposable.prototype.dispose = function () {
if (!this.disposable.isDisposed && !this.isInnerDisposed) {
this.isInnerDisposed = true;
this.disposable.count--;
if (this.disposable.count === 0 && this.disposable.isPrimaryDisposed) {
this.disposable.isDisposed = true;
this.disposable.underlyingDisposable.dispose();
}
}
};
/**
* Initializes a new instance of the RefCountDisposable with the specified disposable.
* @constructor
* @param {Disposable} disposable Underlying disposable.
*/
function RefCountDisposable(disposable) {
this.underlyingDisposable = disposable;
this.isDisposed = false;
this.isPrimaryDisposed = false;
this.count = 0;
}
/**
* Disposes the underlying disposable only when all dependent disposables have been disposed
*/
RefCountDisposable.prototype.dispose = function () {
if (!this.isDisposed && !this.isPrimaryDisposed) {
this.isPrimaryDisposed = true;
if (this.count === 0) {
this.isDisposed = true;
this.underlyingDisposable.dispose();
}
}
};
/**
* Returns a dependent disposable that when disposed decreases the refcount on the underlying disposable.
* @returns {Disposable} A dependent disposable contributing to the reference count that manages the underlying disposable's lifetime.
*/
RefCountDisposable.prototype.getDisposable = function () {
return this.isDisposed ? disposableEmpty : new InnerDisposable(this);
};
return RefCountDisposable;
})();
Version data entries
14 entries across 7 versions & 1 rubygems