![idl histogram idl histogram](https://ars.els-cdn.com/content/image/3-s2.0-B9780128120064000036-f03-14-9780128120064.jpg)
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL + JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub, + JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_StrictPropertyStub, It's probably also worth detecting when something failed and returning NS_ERROR_FAILURE from the IDL-defined +152,5 "JSHistogram", /* name */ JSHistogram_Add also will need to propagate failure information. That's going to mean that all of the other functions that return void here (I'm thinking of FillRanges and ReflectHistogramSnapshot in particular) need to return bool. If a JS_* function returns a boolean and isn't marked in the documentation as being infallible, then you have to propagate the failure return value to the caller. More generally, most JS_* functions can fail. + *obj = JS_NewObject(*cx, classp, NULL, NULL)
![idl histogram idl histogram](https://www.l3harrisgeospatial.com/docs/html/images/objplot6.gif)
Using allows you to get rid of +78,5 rv = ncc->GetJSContext(cx) + nsresult rv = xpConnect->GetCurrentNativeCallContext(&ncc) We actually have an IDL marking for that now which takes a JSContext * as the final parameter of each function. +Īll of the functions in this interface need a JSContext. Why call a file nsTelemetryImpl.cpp? Why not just nsTelemetry.cpp? The rest of this is JSAPI stuff that really needs to be reviewed by mrbkap or gal or somebody who really knows JSAPI.Ĭomment on attachment 528394 >+ * snapshot() - Returns a snapshot of the histogram with the same data fields as in getHistograms() >+ * ranges() - Returns an array with calculated bucket sizes >+ * add(int) - Adds an int value to the appropriate bucket >+ * The returned object has the following functions: In a histogram, the y-axis usually denotes bin counts, but can also be represented in counts per unit also called as densities. Histograms can be created by binning the data and keeping the count of the number of observations in each bin. We visualize the shape of the distribution using a histogram. >+ * bucket_count - number of buckets in the histogram. A density plot is very analogous to a histogram. >+ * Create and return a histogram where bucket sizes increase exponentially. mrbkap should confirm this, but you end up with the correct C++ signatures this way and don't need to hack into xpconnect to set proper return values. >+ * counts - array representing contents of the buckets in the histogramĪs far as I can tell, all of these methods should be returning 'jsval', not void. >+ * histogram_type - 0:Exponential, 1:Linear >+ * where data is consists of the following properties: >+ * Returns an object containing data from all of the currently registered histograms. this interface hasn't existed since Firefox 1.5 But if there is substantive copying, then you need to leave the original copyright date, not 2011.ĭefinitely don't want this. Given that this is just how IDLs work, I wouldn't say this.
![idl histogram idl histogram](http://www.idlcoyote.com/gallery/fitted_gaussian_plot.png)
IDL HISTOGRAM CODE
>diff -git a/xpcom/base/nsITelemetry.idl b/xpcom/base/nsITelemetry.idl >+ * The Original Code is Mozilla Communicator client code, copied from