From 5ee185a4896e43c67b6d299becfa616da78fb9f4 Mon Sep 17 00:00:00 2001
From: Bruce Hill <bruce@bruce-hill.com>
Date: Fri, 21 Mar 2025 21:48:53 -0400
Subject: Move stdlib into src/

---
 src/stdlib/threads.c | 80 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 src/stdlib/threads.c

(limited to 'src/stdlib/threads.c')

diff --git a/src/stdlib/threads.c b/src/stdlib/threads.c
new file mode 100644
index 00000000..9ad68c81
--- /dev/null
+++ b/src/stdlib/threads.c
@@ -0,0 +1,80 @@
+// Logic for the Thread type, representing a pthread
+
+#include <ctype.h>
+#include <err.h>
+#include <fcntl.h>
+#include <gc.h>
+#include <math.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <sys/param.h>
+#include <sys/random.h>
+
+#include "arrays.h"
+#include "datatypes.h"
+#include "metamethods.h"
+#include "rng.h"
+#include "text.h"
+#include "threads.h"
+#include "types.h"
+#include "util.h"
+
+static void *run_thread(Closure_t *closure)
+{
+    uint8_t *random_bytes = GC_MALLOC_ATOMIC(40);
+    getrandom(random_bytes, 40, 0);
+    Array_t rng_seed = {.length=40, .data=random_bytes, .stride=1, .atomic=1};
+    default_rng = RNG$new(rng_seed);
+    ((void(*)(void*))closure->fn)(closure->userdata);
+    return NULL;
+}
+
+public Thread_t Thread$new(Closure_t fn)
+{
+    Thread_t thread = GC_MALLOC(sizeof(pthread_t));
+    Closure_t *closure = new(Closure_t, .fn=fn.fn, .userdata=fn.userdata);
+    pthread_create(thread, NULL, (void*)run_thread, closure);
+    return thread;
+}
+
+public void Thread$join(Thread_t thread)
+{
+    pthread_join(*thread, NULL);
+}
+
+public void Thread$cancel(Thread_t thread)
+{
+    pthread_cancel(*thread);
+}
+
+public void Thread$detach(Thread_t thread)
+{
+    pthread_detach(*thread);
+}
+
+Text_t Thread$as_text(const void *thread, bool colorize, const TypeInfo_t*)
+{
+    if (!thread) {
+        return colorize ? Text("\x1b[34;1mThread\x1b[m") : Text("Thread");
+    }
+    return Text$format(colorize ? "\x1b[34;1mThread(%p)\x1b[m" : "Thread(%p)", *(Thread_t**)thread);
+}
+
+static bool Thread$is_none(const void *obj, const TypeInfo_t*)
+{
+    return *(Thread_t*)obj == NULL;
+}
+
+public const TypeInfo_t Thread$info = {
+    .size=sizeof(Thread_t), .align=__alignof(Thread_t),
+    .metamethods={
+        .as_text=Thread$as_text,
+        .is_none=Thread$is_none,
+        .serialize=cannot_serialize,
+        .deserialize=cannot_deserialize,
+    },
+};
+
+// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0
-- 
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