app.rs

import glfw3::*;

fn run(init_fn: &fn(), update_fn: &fn(tpf: f64), render_fn: &fn(), cleanup_fn: &fn()) {
    init(init_fn, cleanup_fn);
    mainloop(update_fn, render_fn, cleanup_fn);
    cleanup(cleanup_fn);
}

fn init(init_fn: &fn(), cleanup_fn: &fn()) {
    init_fn();
    
    if(glfwInit() == 0) {
        cleanup(cleanup_fn);
        fail(~"glfwInit() failed\n");
    }
}

fn mainloop(update_fn: &fn(tpf: f64), render_fn: &fn(), cleanup_fn: &fn()) {
    
    do task::task().sched_mode(task::PlatformThread).spawn {
    
        let mut window = glfwCreateWindow(300, 300, GLFW_WINDOWED, ~"Hello, I am a window.");
        
        if (ptr::is_null(window.ptr)) {
            cleanup(cleanup_fn);
            io::println(~"Error: " + glfwErrorString(glfwGetError()));
            fail(~"glfwOpenWindow() failed\n");
        }
        glfwSwapInterval(1);
        
        let mut running = true;
        while running {
            glfwPollEvents();
            if (glfwGetKey(&window, GLFW_KEY_ESC) == GLFW_PRESS || glfwGetWindowParam(&window, GLFW_CLOSE_REQUESTED) != 0) {
                running = false;
            }
            
            update_fn(0f64);
            
            render_fn();
            
            glfwSwapBuffers(&window);
        }
    }
}

fn cleanup(cleanup_fn: &fn()) {
    cleanup_fn();
    glfwTerminate();
}

error

./src/owindow/app.rs:32:20: 32:30 error: not a sendable value
./src/owindow/app.rs:32             cleanup(cleanup_fn);
                                            ^~~~~~~~~~
./src/owindow/app.rs:45:12: 45:21 error: not a sendable value
./src/owindow/app.rs:45             update_fn(0f64);
                                    ^~~~~~~~~
./src/owindow/app.rs:47:12: 47:21 error: not a sendable value
./src/owindow/app.rs:47             render_fn();
                                    ^~~~~~~~~
error: aborting due to 3 previous errors

test.rs

use app;

void main() {
    app::run(&init, &update, &render, &cleanup);
}

fn init() {}

fn update(tpf: f64) {}

fn render() {}

fn cleanup() {}