public static HookHandle On(MethodBase target, MethodBase substitute)
{
if (target == null)
{
throw new ArgumentNullException("target");
}
if (substitute == null)
{
throw new ArgumentNullException("subst");
}
CheckSignatures(target, substitute);
if (HookedMethods.ContainsKey(target))
{
throw new InvalidOperationException();
}
HookedMethods.Add(target, null);
var targetMethod = new Method(target);
var destMethod = new Method(substitute);
var reloc = Emitter.EmitMethod(target);
var relocMethod = new Method(reloc);
var targetAddr = targetMethod.GetCompiledCodeAddress();
var destAddr = destMethod.GetCompiledCodeAddress();
var relocAddr = relocMethod.GetCompiledCodeAddress();
var inject = CodeInject.Create(targetAddr, destAddr, relocAddr);
inject.Inject();
return(new HookHandle(target, reloc, inject));
}
internal HookHandle(MethodBase target, MethodBase reloc, CodeInject inject)
{
_target = target;
_inject = inject;
_reloc = reloc;
}
