static EjsWorker *initWorker(Ejs *ejs, EjsWorker *worker, Ejs *baseVM, cchar *name, EjsArray *search, cchar *scriptFile)
{
Ejs *wejs;
EjsWorker *self;
EjsName sname;
static int workerSeqno = 0;
ejsBlockGC(ejs);
if (worker == 0) {
worker = ejsCreateWorker(ejs);
}
worker->ejs = ejs;
worker->state = EJS_WORKER_BEGIN;
if (name) {
worker->name = sclone(name);
} else {
lock(ejs);
worker->name = sfmt("worker-%d", workerSeqno++);
unlock(ejs);
}
/*
Create a new interpreter and an "inside" worker object and pair it with the current "outside" worker.
The worker interpreter gets a new dispatcher
*/
if (baseVM) {
if ((wejs = ejsCloneVM(baseVM)) == 0) {
ejsThrowMemoryError(ejs);
return 0;
}
} else {
if ((wejs = ejsCreateVM(0, 0, ejs->flags)) == 0) {
ejsThrowMemoryError(ejs);
return 0;
}
if (ejsLoadModules(wejs, 0, 0) < 0) {
return 0;
}
}
worker->pair = self = ejsCreateWorker(wejs);
self->state = EJS_WORKER_BEGIN;
self->ejs = wejs;
self->inside = 1;
self->pair = worker;
self->name = sjoin("inside-", worker->name, NULL);
#if MOB
mprEnableDispatcher(wejs->dispatcher);
#endif
if (search) {
ejsSetSearchPath(ejs, (EjsArray*) search);
}
// TODO - these should be don't delete
ejsSetProperty(ejs, worker, ES_Worker_name, ejsCreateStringFromAsc(ejs, self->name));
ejsSetProperty(wejs, self, ES_Worker_name, ejsCreateStringFromAsc(wejs, self->name));
sname = ejsName(wejs, EJS_WORKER_NAMESPACE, "self");
ejsSetPropertyByName(wejs, wejs->global, sname, self);
/*
Workers have a dedicated namespace to enable viewing of the worker globals (self, onmessage, postMessage...)
*/
ejsDefineReservedNamespace(wejs, wejs->global, NULL, EJS_WORKER_NAMESPACE);
addWorker(ejs, worker);
if (scriptFile) {
worker->scriptFile = sclone(scriptFile);
worker->state = EJS_WORKER_STARTED;
if (mprCreateEvent(wejs->dispatcher, "workerMain", 0, (MprEventProc) workerMain, self, 0) < 0) {
mprRemoveItem(ejs->workers, worker);
ejsThrowStateError(ejs, "Cannot create worker event");
return 0;
}
}
return worker;
}
/*
* function Worker(script: String = null, options: Object = null)
*
* Script is optional. If supplied, the script is run immediately by a worker thread. This call
* does not block. Options are: search and name.
*/
static EjsVar *workerConstructor(Ejs *ejs, EjsWorker *worker, int argc, EjsVar **argv)
{
Ejs *wejs;
EjsVar *options, *value;
EjsName qname;
EjsWorker *self;
cchar *search, *name;
worker->ejs = ejs;
worker->state = EJS_WORKER_BEGIN;
options = (argc == 2) ? (EjsVar*) argv[1]: NULL;
name = 0;
search = ejs->ejsPath;
if (options) {
value = ejsGetPropertyByName(ejs, options, ejsName(&qname, "", "search"));
if (ejsIsString(value)) {
search = ejsGetString(value);
}
value = ejsGetPropertyByName(ejs, options, ejsName(&qname, "", "name"));
if (ejsIsString(value)) {
name = ejsGetString(value);
}
}
if (name) {
worker->name = mprStrdup(worker, name);
} else {
worker->name = mprAsprintf(worker, -1, "worker-%d", mprGetListCount(ejs->workers));
}
/*
* Create a new interpreter and an "inside" worker object and pair it with the current "outside" worker.
*/
wejs = ejsCreate(ejs->service, NULL, search, 0);
if (wejs == 0) {
ejsThrowMemoryError(ejs);
return 0;
}
worker->pair = self = ejsCreateWorker(wejs);
self->state = EJS_WORKER_BEGIN;
self->ejs = wejs;
self->inside = 1;
self->pair = worker;
self->name = mprStrcat(self, -1, "inside-", worker->name, NULL);
ejsSetProperty(ejs, (EjsVar*) worker, ES_ejs_sys_Worker_name, (EjsVar*) ejsCreateString(ejs, self->name));
ejsSetProperty(wejs, (EjsVar*) self, ES_ejs_sys_Worker_name, (EjsVar*) ejsCreateString(wejs, self->name));
ejsSetProperty(wejs, wejs->global, ES_ejs_sys_worker_self, (EjsVar*) self);
/*
* Workers have a dedicated namespace to enable viewing of the worker globals (self, onmessage, postMessage...)
*/
ejsDefineReservedNamespace(wejs, wejs->globalBlock, 0, EJS_WORKER_NAMESPACE);
/*
* Make the inside worker permanent so we don't need to worry about whether worker->pair->ejs is valid
*/
self->obj.var.permanent = 1;
if (argc > 0 && ejsIsPath(argv[0])) {
addWorker(ejs, worker);
worker->scriptFile = mprStrdup(worker, ((EjsPath*) argv[0])->path);
worker->state = EJS_WORKER_STARTED;
worker->obj.var.permanent = 1;
if (mprStartWorker(ejs, (MprWorkerProc) workerMain, (void*) worker, MPR_NORMAL_PRIORITY) < 0) {
ejsThrowStateError(ejs, "Can't start worker");
worker->obj.var.permanent = 0;
return 0;
}
}
return (EjsVar*) worker;
}
