/** * Code to be instrumented when a method is exited. */
private void onMethodExitInstrumentation() {
if (!iparams.usingExternalInstrumentation() || methodName.endsWith("init>")) {
if (iparams.methodShouldBeAdapted(methodId)) {
if (isMethodDescribedByPerformanceModel()) {
if (!shouldMethodBodyBeRemoved()) {
// Only the case that real code is executed under performance model time will call this
BasicBlockAdapter.insertMethodInstrument(mv, methodId, "_exitPerfModel");
} else {
BasicBlockAdapter.insertMethodInstrument(mv, methodId, "_exitPerfModel");
}
} else {
BasicBlockAdapter.insertMethodInstrument(
mv, methodId, BasicBlockAdapter.vtfMethodExitCallback);
}
}
}
}
/** * Code to be instrumented when a method is entered. */
private void onMethodEntryInstrumentation() {
if (!iparams.usingExternalInstrumentation() || methodName.endsWith("init>")) {
if (iparams.methodShouldBeAdapted(methodId)) {
if (isMethodDescribedByPerformanceModel()) {
if (!shouldMethodBodyBeRemoved()) {
// The method body will be executed as normal, but the performance impact will only
// depend on the provided model
// This is used to simulate the behaviour, but still get the correct behaviour
BasicBlockAdapter.insertMethodInstrument(mv, methodId, "_enterPerfModel");
} else {
// No method behaviour, just performance cost added by the model
BasicBlockAdapter.insertMethodInstrument(mv, methodId, "_enterPerfModel");
}
} else {
BasicBlockAdapter.insertMethodInstrument(
mv, methodId, BasicBlockAdapter.vtfMethodEntryCallback);
}
}
}
}