valgrind-client-request
Allows making "client requests" when running Node under Valgrind.
Probably works best with Node 8.12+.
Usage
const ValgrindClientRequest = require('valgrind-client-request');
// https://sourceware.org/git/?p=valgrind.git;a=blob;f=callgrind/callgrind.h;hb=VALGRIND_3_14_0
ValgrindClientRequest.callgrindStartInstrumentation();
ValgrindClientRequest.callgrindStopInstrumentation();