WorkerThreadPool: Support daemon-like tasks (via yield semantics)

1 files changed, 34 insertions, 10 deletions

diff --git a/tests/core/templates/test_command_queue.h b/tests/core/templates/test_command_queue.h
index e94c108694..d2957b5c40 100644
--- a/tests/core/templates/test_command_queue.h
+++ b/tests/core/templates/test_command_queue.h
@@ -33,6 +33,7 @@
 
 #include "core/config/project_settings.h"
 #include "core/math/random_number_generator.h"
+#include "core/object/worker_thread_pool.h"
 #include "core/os/os.h"
 #include "core/os/thread.h"
 #include "core/templates/command_queue_mt.h"
@@ -100,7 +101,7 @@ public:
 	ThreadWork reader_threadwork;
 	ThreadWork writer_threadwork;
 
-	CommandQueueMT command_queue = CommandQueueMT(true);
+	CommandQueueMT command_queue;
 
 	enum TestMsgType {
 		TEST_MSG_FUNC1_TRANSFORM,
@@ -119,6 +120,7 @@ public:
 	bool exit_threads = false;
 
 	Thread reader_thread;
+	WorkerThreadPool::TaskID reader_task_id = WorkerThreadPool::INVALID_TASK_ID;
 	Thread writer_thread;
 
 	int func1_count = 0;
@@ -148,11 +150,16 @@ public:
 	void reader_thread_loop() {
 		reader_threadwork.thread_wait_for_work();
 		while (!exit_threads) {
-			if (message_count_to_read < 0) {
+			if (reader_task_id == WorkerThreadPool::INVALID_TASK_ID) {
 				command_queue.flush_all();
-			}
-			for (int i = 0; i < message_count_to_read; i++) {
-				command_queue.wait_and_flush();
+			} else {
+				if (message_count_to_read < 0) {
+					command_queue.flush_all();
+				}
+				for (int i = 0; i < message_count_to_read; i++) {
+					WorkerThreadPool::get_singleton()->yield();
+					command_queue.wait_and_flush();
+				}
 			}
 			message_count_to_read = 0;
 
@@ -216,8 +223,13 @@ public:
 		sts->writer_thread_loop();
 	}
 
-	void init_threads() {
-		reader_thread.start(&SharedThreadState::static_reader_thread_loop, this);
+	void init_threads(bool p_use_thread_pool_sync = false) {
+		if (p_use_thread_pool_sync) {
+			reader_task_id = WorkerThreadPool::get_singleton()->add_native_task(&SharedThreadState::static_reader_thread_loop, this, true);
+			command_queue.set_pump_task_id(reader_task_id);
+		} else {
+			reader_thread.start(&SharedThreadState::static_reader_thread_loop, this);
+		}
 		writer_thread.start(&SharedThreadState::static_writer_thread_loop, this);
 	}
 	void destroy_threads() {
@@ -225,16 +237,20 @@ public:
 		reader_threadwork.main_start_work();
 		writer_threadwork.main_start_work();
 
-		reader_thread.wait_to_finish();
+		if (reader_task_id != WorkerThreadPool::INVALID_TASK_ID) {
+			WorkerThreadPool::get_singleton()->wait_for_task_completion(reader_task_id);
+		} else {
+			reader_thread.wait_to_finish();
+		}
 		writer_thread.wait_to_finish();
 	}
 };
 
-TEST_CASE("[CommandQueue] Test Queue Basics") {
+static void test_command_queue_basic(bool p_use_thread_pool_sync) {
 	const char *COMMAND_QUEUE_SETTING = "memory/limits/command_queue/multithreading_queue_size_kb";
 	ProjectSettings::get_singleton()->set_setting(COMMAND_QUEUE_SETTING, 1);
 	SharedThreadState sts;
-	sts.init_threads();
+	sts.init_threads(p_use_thread_pool_sync);
 
 	sts.add_msg_to_write(SharedThreadState::TEST_MSG_FUNC1_TRANSFORM);
 	sts.writer_threadwork.main_start_work();
@@ -272,6 +288,14 @@ TEST_CASE("[CommandQueue] Test Queue Basics") {
 			ProjectSettings::get_singleton()->property_get_revert(COMMAND_QUEUE_SETTING));
 }
 
+TEST_CASE("[CommandQueue] Test Queue Basics") {
+	test_command_queue_basic(false);
+}
+
+TEST_CASE("[CommandQueue] Test Queue Basics with WorkerThreadPool sync.") {
+	test_command_queue_basic(true);
+}
+
 TEST_CASE("[CommandQueue] Test Queue Wrapping to same spot.") {
 	const char *COMMAND_QUEUE_SETTING = "memory/limits/command_queue/multithreading_queue_size_kb";
 	ProjectSettings::get_singleton()->set_setting(COMMAND_QUEUE_SETTING, 1);