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@ -2993,9 +2993,8 @@ typedef struct {
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} JSWorkerData;
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typedef struct {
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/* source code of the worker */
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char *eval_buf;
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size_t eval_buf_len;
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char *filename; /* module filename */
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char *basename; /* module base name */
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JSWorkerMessagePipe *recv_pipe, *send_pipe;
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} WorkerFuncArgs;
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@ -3005,6 +3004,7 @@ typedef struct {
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} JSSABHeader;
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static JSClassID js_worker_class_id;
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static JSContext *(*js_worker_new_context_func)(JSRuntime *rt);
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static int atomic_add_int(int *ptr, int v)
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{
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@ -3136,7 +3136,6 @@ static void *worker_func(void *opaque)
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JSRuntime *rt;
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JSThreadState *ts;
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JSContext *ctx;
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JSValue retval;
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rt = JS_NewRuntime();
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if (rt == NULL) {
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@ -3145,12 +3144,16 @@ static void *worker_func(void *opaque)
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}
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js_std_init_handlers(rt);
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JS_SetModuleLoaderFunc(rt, NULL, js_module_loader, NULL);
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/* set the pipe to communicate with the parent */
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ts = JS_GetRuntimeOpaque(rt);
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ts->recv_pipe = args->recv_pipe;
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ts->send_pipe = args->send_pipe;
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ctx = JS_NewContext(rt);
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/* function pointer to avoid linking the whole JS_NewContext() if
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not needed */
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ctx = js_worker_new_context_func(rt);
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if (ctx == NULL) {
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fprintf(stderr, "JS_NewContext failure");
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}
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@ -3159,18 +3162,11 @@ static void *worker_func(void *opaque)
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js_std_add_helpers(ctx, -1, NULL);
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/* system modules */
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js_init_module_std(ctx, "std");
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js_init_module_os(ctx, "os");
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retval = JS_Eval(ctx, args->eval_buf, args->eval_buf_len,
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"<worker>", JS_EVAL_TYPE_MODULE);
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free(args->eval_buf);
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free(args);
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if (JS_IsException(retval))
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if (!JS_RunModule(ctx, args->basename, args->filename))
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js_std_dump_error(ctx);
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JS_FreeValue(ctx, retval);
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free(args->filename);
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free(args->basename);
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free(args);
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js_std_loop(ctx);
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@ -3216,52 +3212,53 @@ static JSValue js_worker_ctor(JSContext *ctx, JSValueConst new_target,
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int argc, JSValueConst *argv)
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{
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JSRuntime *rt = JS_GetRuntime(ctx);
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WorkerFuncArgs *args;
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const char *str;
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size_t str_len;
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WorkerFuncArgs *args = NULL;
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pthread_t tid;
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pthread_attr_t attr;
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JSValue obj = JS_UNDEFINED;
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int ret;
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const char *filename = NULL, *basename;
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JSAtom basename_atom;
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/* XXX: in order to avoid problems with resource liberation, we
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don't support creating workers inside workers */
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if (!is_main_thread(rt))
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return JS_ThrowTypeError(ctx, "cannot create a worker inside a worker");
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/* base name, assuming the calling function is a normal JS
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function */
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basename_atom = JS_GetScriptOrModuleName(ctx, 1);
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if (basename_atom == JS_ATOM_NULL) {
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return JS_ThrowTypeError(ctx, "could not determine calling script or module name");
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}
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basename = JS_AtomToCString(ctx, basename_atom);
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JS_FreeAtom(ctx, basename_atom);
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if (!basename)
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goto fail;
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/* script source */
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str = JS_ToCStringLen(ctx, &str_len, argv[0]);
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if (!str)
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return JS_EXCEPTION;
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/* module name */
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filename = JS_ToCString(ctx, argv[0]);
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if (!filename)
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goto fail;
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args = malloc(sizeof(*args));
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if (!args) {
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JS_ThrowOutOfMemory(ctx);
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goto fail;
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}
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if (!args)
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goto oom_fail;
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memset(args, 0, sizeof(*args));
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args->eval_buf = malloc(str_len + 1);
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if (!args->eval_buf) {
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JS_ThrowOutOfMemory(ctx);
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goto fail;
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}
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memcpy(args->eval_buf, str, str_len + 1);
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args->eval_buf_len = str_len;
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JS_FreeCString(ctx, str);
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str = NULL;
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args->filename = strdup(filename);
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args->basename = strdup(basename);
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/* ports */
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args->recv_pipe = js_new_message_pipe();
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if (!args->recv_pipe)
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goto fail;
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goto oom_fail;
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args->send_pipe = js_new_message_pipe();
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if (!args->send_pipe)
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goto fail;
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goto oom_fail;
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obj = js_worker_ctor_internal(ctx, new_target,
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args->send_pipe, args->recv_pipe);
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if (JS_IsUndefined(obj))
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if (JS_IsException(obj))
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goto fail;
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pthread_attr_init(&attr);
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@ -3273,11 +3270,17 @@ static JSValue js_worker_ctor(JSContext *ctx, JSValueConst new_target,
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JS_ThrowTypeError(ctx, "could not create worker");
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goto fail;
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}
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JS_FreeCString(ctx, basename);
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JS_FreeCString(ctx, filename);
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return obj;
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oom_fail:
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JS_ThrowOutOfMemory(ctx);
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fail:
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JS_FreeCString(ctx, str);
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JS_FreeCString(ctx, basename);
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JS_FreeCString(ctx, filename);
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if (args) {
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free(args->eval_buf);
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free(args->filename);
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free(args->basename);
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js_free_message_pipe(args->recv_pipe);
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js_free_message_pipe(args->send_pipe);
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free(args);
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@ -3417,6 +3420,13 @@ static const JSCFunctionListEntry js_worker_proto_funcs[] = {
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#endif /* USE_WORKER */
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void js_std_set_worker_new_context_func(JSContext *(*func)(JSRuntime *rt))
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{
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#ifdef USE_WORKER
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js_worker_new_context_func = func;
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#endif
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}
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#if defined(_WIN32)
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#define OS_PLATFORM "win32"
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#elif defined(__APPLE__)
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@ -3668,6 +3678,12 @@ void js_std_free_handlers(JSRuntime *rt)
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free_timer(rt, th);
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}
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#ifdef USE_WORKER
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/* XXX: free port_list ? */
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js_free_message_pipe(ts->recv_pipe);
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js_free_message_pipe(ts->send_pipe);
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#endif
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free(ts);
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JS_SetRuntimeOpaque(rt, NULL); /* fail safe */
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}
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bellard
3 years ago