fix thread mem error when args is void

port/linux/.vscode/launch.json

@@ -16,6 +16,7 @@
                 // "--gtest_filter=packtool.*"
                 // "--gtest_filter=os.path"
                 // "--gtest_filter=packtool.packread"
+                "--gtest_filter=thread.test2"
             ],
             "stopAtEntry": false,
             "cwd": "${workspaceFolder}",

port/linux/package/pikascript/pikascript-lib/_thread/_thread.c

@@ -25,25 +25,46 @@ static void _thread_func(void* arg) {
     pika_GIL_ENTER();
     PikaObj* ctx = New_TinyObj(NULL);
     pika_thread_info* info = (pika_thread_info*)arg;
-    obj_setArg(ctx, "args", info->args);
+    if (NULL != info->args) {
+        obj_setArg(ctx, "args", info->args);
+    }
     obj_setArg(ctx, "thread", info->function);
-    /* clang-format off */
-    PIKA_PYTHON(
-        thread(*args)
-    )
-    /* clang-format on */
-    const uint8_t bytes[] = {
-        0x0c, 0x00, 0x00, 0x00, /* instruct array size */
-        0x20, 0x81, 0x01, 0x00, 0x10, 0x08, 0x06, 0x00, 0x00, 0x02, 0x08, 0x00,
-        /* instruct array */
-        0x0f, 0x00, 0x00, 0x00, /* const pool size */
-        0x00, 0x61, 0x72, 0x67, 0x73, 0x00, 0x2a, 0x00, 0x74, 0x68, 0x72, 0x65,
-        0x61, 0x64, 0x00, /* const pool */
-    };
-    pikaVM_runByteCode(ctx, (uint8_t*)bytes);
+
+    if (NULL == info->args) {
+        /* clang-format off */
+        PIKA_PYTHON(
+        thread()
+        )
+        /* clang-format on */
+        const uint8_t bytes[] = {
+            0x04, 0x00, 0x00, 0x00, /* instruct array size */
+            0x00, 0x82, 0x01, 0x00, /* instruct array */
+            0x08, 0x00, 0x00, 0x00, /* const pool size */
+            0x00, 0x74, 0x68, 0x72, 0x65, 0x61, 0x64, 0x00, /* const pool */
+        };
+        pikaVM_runByteCode(ctx, (uint8_t*)bytes);
+    } else {
+        /* clang-format off */
+        PIKA_PYTHON(
+            thread(*args)
+        )
+        /* clang-format on */
+        const uint8_t bytes[] = {
+            0x0c, 0x00, 0x00, 0x00, /* instruct array size */
+            0x20, 0x81, 0x01, 0x00, 0x10, 0x08, 0x06, 0x00, 0x00, 0x02, 0x08,
+            0x00,
+            /* instruct array */
+            0x0f, 0x00, 0x00, 0x00, /* const pool size */
+            0x00, 0x61, 0x72, 0x67, 0x73, 0x00, 0x2a, 0x00, 0x74, 0x68, 0x72,
+            0x65, 0x61, 0x64, 0x00, /* const pool */
+        };
+        pikaVM_runByteCode(ctx, (uint8_t*)bytes);
+    }
     obj_deinit(ctx);
     arg_deinit(info->function);
-    arg_deinit(info->args);
+    if (NULL != info->args) {
+        arg_deinit(info->args);
+    }
     pika_debug("thread exiting");
     pika_platform_thread_t* thread = info->thread;
     pikaFree(info, sizeof(pika_thread_info));
@@ -56,11 +77,19 @@ static void _thread_func(void* arg) {
 #endif
 }
 
+int PikaStdData_Tuple_len(PikaObj* self);
+
 void _thread_start_new_thread(PikaObj* self, Arg* function, Arg* args_) {
     pika_thread_info* info =
         (pika_thread_info*)pikaMalloc(sizeof(pika_thread_info));
+    pika_platform_memset(info, 0, sizeof(pika_thread_info));
     info->function = arg_copy(function);
-    info->args = arg_copy(args_);
+
+    PikaObj* tuple = arg_getPtr(args_);
+    size_t tuple_size = PikaStdData_Tuple_len(tuple);
+    if (tuple_size > 0) {
+        info->args = arg_copy(args_);
+    }
     _VM_lock_init();
     info->thread = pika_platform_thread_init(
         "pika_thread", _thread_func, info, PIKA_THREAD_STACK_SIZE,

test/compile-test.cpp

@@ -754,4 +754,12 @@ TEST(compiler, str_join) {
     EXPECT_EQ(pikaMemNow(), 0);
 }
 
+TEST(thread, void_arg) {
+    char* lines =
+        "thread()";
+    pika_lines2Array(lines);
+    EXPECT_EQ(pikaMemNow(), 0);
+}
+
+
 TEST_END

test/python/_thread/test2.py

@@ -0,0 +1,17 @@
+import time
+import _thread
+
+finished = False
+
+def test_thread():
+    global finished
+    for i in range(3):
+        print(i)
+        time.sleep(0.1)
+    finished = True
+
+# 开启线程 获取数据
+_thread.start_new_thread(test_thread, ())
+while not finished:
+    time.sleep(0.1)
+time.sleep(0.1)

test/thread-test.cpp

@@ -33,5 +33,7 @@ TEST(thread, self) {
     EXPECT_EQ(pikaMemNow(), 0);
 }
 
+TEST_SINGLE_FILE(thread, test2, "test/python/_thread/test2.py")
+
 #endif
 TEST_END