37 lines
955 B
Zig
37 lines
955 B
Zig
const std = @import("std");
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const Io = std.Io;
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const Simulator = @import("zigmulator");
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const SelectResult = union(enum) {
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answer: u32,
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};
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fn computeAnswer() u32 {
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return 42;
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}
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fn program(init: std.process.Init) anyerror!void {
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var buffer: [1]SelectResult = undefined;
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var select = Io.Select(SelectResult).init(init.io, &buffer);
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// This calls the Io vtable's groupAsync callback.
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select.async(.answer, computeAnswer, .{});
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const result = try select.await();
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var stdout = Io.File.stdout().writerStreaming(init.io, &.{});
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try stdout.interface.print("answer: {}\n", .{result.answer});
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try stdout.interface.flush();
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}
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pub fn main(init: std.process.Init) !void {
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var sim: Simulator = undefined;
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sim.init(std.heap.page_allocator, init.io);
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defer sim.deinit();
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try sim.addExecutable("select_group_async", program);
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try sim.spawn("select_group_async", .{});
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while (sim.scheduleOne()) {}
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}
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