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This commit is contained in:
Justin Ethier 2019-05-30 16:29:05 -04:00
parent ddd057f97b
commit dcd14e4642
1 changed files with 18 additions and 1 deletions
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19
libs/cyclone/atomics.scm
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@ -15,6 +15,9 @@
;; (atom? obj)
;; (atom obj)
(import (scheme base) (scheme write))
(include-c-header "<ck_pr.h>")
(define-c atom?
"(void *data, int argc, closure _, object k, object obj)"
" object result = Cyc_is_atomic(obj);
@ -32,6 +35,7 @@
tmp.tag = atomic_tag;
tmp.obj = obj;
atm = gc_alloc(((gc_thread_data *)data)->heap, sizeof(atomic_type), (char *)(&tmp), (gc_thread_data *)data, &heap_grown);
ck_pr_store_ptr(&(atm->obj), obj); // Needed??
return_closcall1(data, k, atm); ")
(define (atom . obj)
@ -39,8 +43,15 @@
(make-atom (car obj))
(make-atom #f)))
;; TODO:
;; - ref atomic
(define-c ref
"(void *data, int argc, closure _, object k, object obj)"
" atomic a;
if (Cyc_is_atomic(obj) != boolean_t) {
Cyc_rt_raise2(data, \"Type error: expected atom\", obj);
}
a = (atomic) obj;
return_closcall1(data, k, ck_pr_load_ptr(&(a->obj)));")
;; TODO:
;; - swap, see https://clojure.github.io/clojure/clojure.core-api.html#clojure.core/swap!
@ -48,3 +59,9 @@
;; TODO:
;; - compare and swap?
(define a (make-atom '(1 2)))
(write
(list
a
(ref a)))