Precompile and real time loops

JTriggerFish · July 24, 2023, 3:17pm

I’m working on a package that includes a real time loop where there is an audio thread and a a “while true” loop that waits for user input in a loop.
When doing “using [PkgName]” in the REPL, it tries to compile it but the main() function gets called and the audio starts playing and the import never returns.
How can avoid this ? I do want to precompile as much of the package as possible because I want to avoid pauses due to the JIT but I want the main function or at least some parts of it not to be executed.
Code is here for reference:

github.com

JTriggerFish/InteractiveSynthPOC.jl/blob/main/src/InteractiveSynthPOC.jl

module InteractiveSynthPOC

using SimpleDirectMediaLayer
using SimpleDirectMediaLayer.LibSDL2
import Base.sin
import LinearAlgebra.norm
using Random
using Base.Threads
using Setfield

# Structure for sine wave with frequency, phase, volume and panning
struct SineWave
    frequency::Float64
    volume::Float64
    panning::Float64 # range -1 (left) to 1 (right)
    phase::Float64
    SineWave(frequency::Union{Float64, Int}, volume::Float64, panning::Float64 = 0.0, phase::Float64=0.0) = new(Float64(frequency), volume, panning, phase)
end

# Create an array to hold the sine waves

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contradict · July 24, 2023, 3:26pm

The documentation suggests

if abspath(PROGRAM_FILE) == @__FILE__
    main()
end

JTriggerFish · July 24, 2023, 3:37pm

Ah indeed, I just had to replace the line

main()

with the snippet you posted. Thank you very much !