Catch C++ exception when thread creation fails

Author: matyhtf

ext-src/swoole_thread.cc

@@ -250,7 +250,7 @@ bool php_swoole_thread_unserialize(zend_string *data, zval *zv) {
     PHP_VAR_UNSERIALIZE_DESTROY(var_hash);
     if (!unserialized) {
         swoole_warning("unserialize() failed, Error at offset " ZEND_LONG_FMT " of %zd bytes",
-                       (zend_long)((char *) p - ZSTR_VAL(data)),
+                       (zend_long) ((char *) p - ZSTR_VAL(data)),
                        l);
     } else {
         if (ZVAL_IS_ARRAY(zv)) {
@@ -371,7 +371,12 @@ static void php_swoole_thread_create(INTERNAL_FUNCTION_PARAMETERS, zval *zobject
         return;
     }
 
-    to->thread = new std::thread([file, argv]() { php_swoole_thread_start(file, argv); });
+    try {
+        to->thread = new std::thread([file, argv]() { php_swoole_thread_start(file, argv); });
+    } catch (const std::exception &e) {
+        zend_throw_exception(swoole_exception_ce, e.what(), SW_ERROR_SYSTEM_CALL_FAIL);
+        return;
+    }
     zend_update_property_long(
         swoole_thread_ce, SW_Z8_OBJ_P(zobject), ZEND_STRL("id"), (zend_long) to->thread->native_handle());
 }