tomo/stdlib/threads.c

72 lines
1.7 KiB
C

// 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 "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 = new(pthread_t);
Closure_t *doop = new(Closure_t, .fn=fn.fn, .userdata=fn.userdata);
pthread_create(thread, NULL, (void*)run_thread, doop);
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 Thread_t *thread, bool colorize, const TypeInfo_t *type)
{
(void)type;
if (!thread) {
return colorize ? Text("\x1b[34;1mThread\x1b[m") : Text("Thread");
}
return Text$format(colorize ? "\x1b[34;1mThread(%p)\x1b[m" : "Thread(%p)", *thread);
}
public const TypeInfo_t Thread$info = {
.size=sizeof(Thread_t), .align=__alignof(Thread_t),
.tag=CustomInfo,
.CustomInfo={.as_text=(void*)Thread$as_text},
};
// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0