return async (dispatch, getState) => {
const perfFront = selectors.getPerfFront(getState());
dispatch(changeRecordingState(REQUEST_TO_GET_PROFILE_AND_STOP_PROFILER));
const profile = await perfFront.getProfileAndStopProfiler();
const debugPathGetter = createDebugPathMapForLibsInProfile(profile);
async function getSymbolTable(debugName, breakpadId) {
const debugPath = debugPathGetter(debugName, breakpadId);
const [addresses, index, buffer] =
await perfFront.getSymbolTable(debugPath, breakpadId);
// The protocol transmits these arrays as plain JavaScript arrays of
// numbers, but we want to pass them on as typed arrays. Convert them now.
return [
new Uint32Array(addresses),
new Uint32Array(index),
new Uint8Array(buffer),
];
}
selectors.getReceiveProfileFn(getState())(profile, getSymbolTable);
dispatch(changeRecordingState(AVAILABLE_TO_RECORD));
};
return async (dispatch, getState) => {
const perfFront = selectors.getPerfFront(getState());
dispatch(changeRecordingState(REQUEST_TO_STOP_PROFILER));
perfFront.stopProfilerAndDiscardProfile();
};
return (dispatch, getState) => {
const recordingSettings = selectors.getRecordingSettings(getState());
const perfFront = selectors.getPerfFront(getState());
perfFront.startProfiler(recordingSettings);
dispatch(changeRecordingState(REQUEST_TO_START_RECORDING));
};