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https://github.com/bellard/quickjs.git
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fixed and simplified setTimeout() by using an integer timer handle (github issue #218)
This commit is contained in:
Fabrice Bellard
parent
84058766e9
commit
9e561d5c2e
103
quickjs-libc.c
103
quickjs-libc.c
@ -89,7 +89,7 @@ typedef struct {
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typedef struct {
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struct list_head link;
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BOOL has_object;
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int timer_id;
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int64_t timeout;
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JSValue func;
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} JSOSTimer;
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@ -125,6 +125,7 @@ typedef struct JSThreadState {
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struct list_head os_timers; /* list of JSOSTimer.link */
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struct list_head port_list; /* list of JSWorkerMessageHandler.link */
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int eval_script_recurse; /* only used in the main thread */
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int next_timer_id; /* for setTimeout() */
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/* not used in the main thread */
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JSWorkerMessagePipe *recv_pipe, *send_pipe;
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} JSThreadState;
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@ -2006,41 +2007,13 @@ static JSValue js_os_now(JSContext *ctx, JSValue this_val,
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return JS_NewFloat64(ctx, (double)get_time_ns() / 1e6);
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}
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static void unlink_timer(JSRuntime *rt, JSOSTimer *th)
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{
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if (th->link.prev) {
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list_del(&th->link);
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th->link.prev = th->link.next = NULL;
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}
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}
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static void free_timer(JSRuntime *rt, JSOSTimer *th)
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{
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list_del(&th->link);
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JS_FreeValueRT(rt, th->func);
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js_free_rt(rt, th);
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}
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static JSClassID js_os_timer_class_id;
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static void js_os_timer_finalizer(JSRuntime *rt, JSValue val)
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{
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JSOSTimer *th = JS_GetOpaque(val, js_os_timer_class_id);
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if (th) {
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th->has_object = FALSE;
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if (!th->link.prev)
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free_timer(rt, th);
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}
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}
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static void js_os_timer_mark(JSRuntime *rt, JSValueConst val,
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JS_MarkFunc *mark_func)
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{
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JSOSTimer *th = JS_GetOpaque(val, js_os_timer_class_id);
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if (th) {
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JS_MarkValue(rt, th->func, mark_func);
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}
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}
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static JSValue js_os_setTimeout(JSContext *ctx, JSValueConst this_val,
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int argc, JSValueConst *argv)
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{
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@ -2049,45 +2022,56 @@ static JSValue js_os_setTimeout(JSContext *ctx, JSValueConst this_val,
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int64_t delay;
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JSValueConst func;
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JSOSTimer *th;
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JSValue obj;
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func = argv[0];
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if (!JS_IsFunction(ctx, func))
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return JS_ThrowTypeError(ctx, "not a function");
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if (JS_ToInt64(ctx, &delay, argv[1]))
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return JS_EXCEPTION;
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obj = JS_NewObjectClass(ctx, js_os_timer_class_id);
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if (JS_IsException(obj))
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return obj;
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th = js_mallocz(ctx, sizeof(*th));
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if (!th) {
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JS_FreeValue(ctx, obj);
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if (!th)
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return JS_EXCEPTION;
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}
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th->has_object = TRUE;
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th->timer_id = ts->next_timer_id;
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if (ts->next_timer_id == INT32_MAX)
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ts->next_timer_id = 1;
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else
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ts->next_timer_id++;
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th->timeout = get_time_ms() + delay;
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th->func = JS_DupValue(ctx, func);
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list_add_tail(&th->link, &ts->os_timers);
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JS_SetOpaque(obj, th);
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return obj;
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return JS_NewInt32(ctx, th->timer_id);
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}
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static JSOSTimer *find_timer_by_id(JSThreadState *ts, int timer_id)
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{
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struct list_head *el;
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if (timer_id <= 0)
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return NULL;
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list_for_each(el, &ts->os_timers) {
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JSOSTimer *th = list_entry(el, JSOSTimer, link);
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if (th->timer_id == timer_id)
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return th;
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}
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return NULL;
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}
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static JSValue js_os_clearTimeout(JSContext *ctx, JSValueConst this_val,
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int argc, JSValueConst *argv)
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{
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JSOSTimer *th = JS_GetOpaque2(ctx, argv[0], js_os_timer_class_id);
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if (!th)
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JSRuntime *rt = JS_GetRuntime(ctx);
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JSThreadState *ts = JS_GetRuntimeOpaque(rt);
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JSOSTimer *th;
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int timer_id;
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if (JS_ToInt32(ctx, &timer_id, argv[0]))
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return JS_EXCEPTION;
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unlink_timer(JS_GetRuntime(ctx), th);
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th = find_timer_by_id(ts, timer_id);
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if (!th)
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return JS_UNDEFINED;
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free_timer(rt, th);
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return JS_UNDEFINED;
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}
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static JSClassDef js_os_timer_class = {
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"OSTimer",
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.finalizer = js_os_timer_finalizer,
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.gc_mark = js_os_timer_mark,
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};
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/* return a promise */
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static JSValue js_os_sleepAsync(JSContext *ctx, JSValueConst this_val,
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int argc, JSValueConst *argv)
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@ -2111,7 +2095,7 @@ static JSValue js_os_sleepAsync(JSContext *ctx, JSValueConst this_val,
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JS_FreeValue(ctx, resolving_funcs[1]);
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return JS_EXCEPTION;
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}
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th->has_object = FALSE;
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th->timer_id = -1;
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th->timeout = get_time_ms() + delay;
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th->func = JS_DupValue(ctx, resolving_funcs[0]);
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list_add_tail(&th->link, &ts->os_timers);
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@ -2161,9 +2145,7 @@ static int js_os_poll(JSContext *ctx)
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/* the timer expired */
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func = th->func;
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th->func = JS_UNDEFINED;
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unlink_timer(rt, th);
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if (!th->has_object)
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free_timer(rt, th);
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free_timer(rt, th);
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call_handler(ctx, func);
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JS_FreeValue(ctx, func);
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return 0;
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@ -2330,9 +2312,7 @@ static int js_os_poll(JSContext *ctx)
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/* the timer expired */
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func = th->func;
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th->func = JS_UNDEFINED;
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unlink_timer(rt, th);
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if (!th->has_object)
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free_timer(rt, th);
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free_timer(rt, th);
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call_handler(ctx, func);
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JS_FreeValue(ctx, func);
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return 0;
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@ -3735,10 +3715,6 @@ static int js_os_init(JSContext *ctx, JSModuleDef *m)
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{
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os_poll_func = js_os_poll;
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/* OSTimer class */
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JS_NewClassID(&js_os_timer_class_id);
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JS_NewClass(JS_GetRuntime(ctx), js_os_timer_class_id, &js_os_timer_class);
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#ifdef USE_WORKER
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{
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JSRuntime *rt = JS_GetRuntime(ctx);
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@ -3850,7 +3826,8 @@ void js_std_init_handlers(JSRuntime *rt)
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init_list_head(&ts->os_signal_handlers);
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init_list_head(&ts->os_timers);
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init_list_head(&ts->port_list);
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ts->next_timer_id = 1;
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JS_SetRuntimeOpaque(rt, ts);
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#ifdef USE_WORKER
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@ -3883,9 +3860,7 @@ void js_std_free_handlers(JSRuntime *rt)
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list_for_each_safe(el, el1, &ts->os_timers) {
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JSOSTimer *th = list_entry(el, JSOSTimer, link);
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unlink_timer(rt, th);
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if (!th->has_object)
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free_timer(rt, th);
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free_timer(rt, th);
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}
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#ifdef USE_WORKER
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