Performance (#47)

* Prevent allocation at fmi2CompletedIntegratorStep

* Set for fast lookup

src/FMI2/struct.jl

@@ -262,6 +262,12 @@ mutable struct FMU2Component{F}
     E::Union{FMUJacobian, Nothing}
     F::Union{FMUJacobian, Nothing}
 
+    # performance
+    stepEnterEventMode::Array{fmi2Boolean}
+    terminateSimulation::Array{fmi2Boolean}
+    ptr_stepEnterEventMode::Ptr{fmi2Boolean}
+    ptr_terminateSimulation::Ptr{fmi2Boolean}
+
     # deprecated
     realValues::Dict
     senseFunc::Symbol
@@ -323,6 +329,10 @@ mutable struct FMU2Component{F}
         inst.jac_ẋy_x = zeros(fmi2Real, 0, 0)
         inst.jac_ẋy_u = zeros(fmi2Real, 0, 0)
 
+        inst.stepEnterEventMode = zeros(fmi2Boolean, 1)
+        inst.terminateSimulation= zeros(fmi2Boolean, 1)
+        inst.ptr_stepEnterEventMode = pointer(inst.stepEnterEventMode)
+        inst.ptr_terminateSimulation = pointer(inst.terminateSimulation)
         return inst
     end
 
@@ -597,4 +607,4 @@ Overload the Base.show() function for custom printing of the FMU2.
 Base.show(io::IO, fmu::FMU2) = print(io,
 "Model name:        $(fmu.modelDescription.modelName)
 Type:              $(fmu.type)"
-)
+)

src/jacobian.jl

@@ -8,6 +8,7 @@ mutable struct FMUJacobian{R, V}
     valid::Bool 
 
     ∂f_refs::AbstractArray{<:V}
+    ∂f_refsset::Set{<:V}
     ∂x_refs::AbstractArray{<:V}
 
     updateFct! # ToDo: Add type ::U
@@ -26,6 +27,7 @@ mutable struct FMUJacobian{R, V}
         inst.c = zeros(R, length(∂x_refs))
         inst.valid = false 
         inst.∂f_refs = ∂f_refs
+        inst.∂f_refsset = Set(∂f_refs)
         inst.∂x_refs = ∂x_refs
         inst.updateFct! = updateFct!
 
@@ -80,4 +82,4 @@ function vjp!(jac::FMUJacobian, x; ∂f_refs=jac.∂f_refs, ∂x_refs=jac.∂x_r
     jac.c[:] = jac.mtx' * x
     jac.numVJPs += 1
     return jac.c
-end
+end