73 lines
1.7 KiB
Plaintext
73 lines
1.7 KiB
Plaintext
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# This is a coroutine library that uses libaco. If you don't have it installed,
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# you can get it from the website: https://libaco.org
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#
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# Lua programmers will recognize this as similar to Lua's stackful coroutines.
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#
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# Async/Await programmers will weep at its beauty and gnash their teeth and
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# rend their garments in despair at what they could have had.
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use libaco.so
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use <aco.h>
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func main():
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!! Example usage:
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co := new(func():
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say("I'm in the coroutine!")
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yield()
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say("I'm back in the coroutine!")
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)
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>> co
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say("I'm in the main func")
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>> co:resume()
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say("I'm back in the main func")
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>> co:resume()
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say("I'm back in the main func again")
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>> co:resume()
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_main_co := !@Memory
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_shared_stack := !@Memory
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struct Coroutine(co:@Memory):
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func is_finished(co:Coroutine; inline)->Bool:
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return inline C (
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((aco_t*)$co.$co)->is_finished
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):Bool
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func resume(co:Coroutine)->Bool:
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if co:is_finished():
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return no
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inline C {
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aco_resume($co.$co);
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}
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return yes
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func _init():
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inline C {
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aco_set_allocator(GC_malloc, NULL);
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aco_thread_init(aco_exit_fn);
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}
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_main_co = inline C(
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aco_create(NULL, NULL, 0, NULL, NULL)
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):@Memory
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_shared_stack = inline C(
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aco_shared_stack_new(0);
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):@Memory
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func new(co:func())->Coroutine:
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if not _main_co:
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_init()
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main_co := _main_co
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shared_stack := _shared_stack
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aco_ptr := inline C (
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aco_create($main_co, $shared_stack, 0, (void*)$co.fn, $co.userdata)
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):@Memory
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return Coroutine(aco_ptr)
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func yield(; inline):
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inline C {
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aco_yield();
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}
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