mirror of
https://github.com/godotengine/godot.git
synced 2024-12-15 10:12:40 +08:00
99fe462452
- Based on C++11's `thread` and `thread_local` - No more need to allocate-deallocate or check for null - No pointer anymore, just a member variable - Platform-specific implementations no longer needed (except for the few cases of non-portable functions) - Simpler for `NO_THREADS` - Thread ids are now the same across platforms (main is 1; others follow)
478 lines
16 KiB
C++
478 lines
16 KiB
C++
/*************************************************************************/
|
|
/* test_command_queue.h */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/*************************************************************************/
|
|
|
|
#ifndef TEST_COMMAND_QUEUE_H
|
|
#define TEST_COMMAND_QUEUE_H
|
|
|
|
#include "test_command_queue.h"
|
|
|
|
#include "core/config/project_settings.h"
|
|
#include "core/os/mutex.h"
|
|
#include "core/os/os.h"
|
|
#include "core/os/semaphore.h"
|
|
#include "core/os/thread.h"
|
|
#include "core/templates/command_queue_mt.h"
|
|
|
|
#if !defined(NO_THREADS)
|
|
|
|
namespace TestCommandQueue {
|
|
|
|
class ThreadWork {
|
|
Semaphore thread_sem;
|
|
Semaphore main_sem;
|
|
Mutex mut;
|
|
int threading_errors = 0;
|
|
enum State {
|
|
MAIN_START,
|
|
MAIN_DONE,
|
|
THREAD_START,
|
|
THREAD_DONE,
|
|
} state;
|
|
|
|
public:
|
|
ThreadWork() {
|
|
mut.lock();
|
|
state = MAIN_START;
|
|
}
|
|
~ThreadWork() {
|
|
CHECK_MESSAGE(threading_errors == 0, "threads did not lock/unlock correctly");
|
|
}
|
|
void thread_wait_for_work() {
|
|
thread_sem.wait();
|
|
mut.lock();
|
|
if (state != MAIN_DONE) {
|
|
threading_errors++;
|
|
}
|
|
state = THREAD_START;
|
|
}
|
|
void thread_done_work() {
|
|
if (state != THREAD_START) {
|
|
threading_errors++;
|
|
}
|
|
state = THREAD_DONE;
|
|
mut.unlock();
|
|
main_sem.post();
|
|
}
|
|
|
|
void main_wait_for_done() {
|
|
main_sem.wait();
|
|
mut.lock();
|
|
if (state != THREAD_DONE) {
|
|
threading_errors++;
|
|
}
|
|
state = MAIN_START;
|
|
}
|
|
void main_start_work() {
|
|
if (state != MAIN_START) {
|
|
threading_errors++;
|
|
}
|
|
state = MAIN_DONE;
|
|
mut.unlock();
|
|
thread_sem.post();
|
|
}
|
|
};
|
|
|
|
class SharedThreadState {
|
|
public:
|
|
ThreadWork reader_threadwork;
|
|
ThreadWork writer_threadwork;
|
|
|
|
CommandQueueMT command_queue = CommandQueueMT(true);
|
|
|
|
enum TestMsgType {
|
|
TEST_MSG_FUNC1_TRANSFORM,
|
|
TEST_MSG_FUNC2_TRANSFORM_FLOAT,
|
|
TEST_MSG_FUNC3_TRANSFORMx6,
|
|
TEST_MSGSYNC_FUNC1_TRANSFORM,
|
|
TEST_MSGSYNC_FUNC2_TRANSFORM_FLOAT,
|
|
TEST_MSGRET_FUNC1_TRANSFORM,
|
|
TEST_MSGRET_FUNC2_TRANSFORM_FLOAT,
|
|
TEST_MSG_MAX
|
|
};
|
|
|
|
Vector<TestMsgType> message_types_to_write;
|
|
bool during_writing = false;
|
|
int message_count_to_read = 0;
|
|
bool exit_threads = false;
|
|
|
|
Thread reader_thread;
|
|
Thread writer_thread;
|
|
|
|
int func1_count = 0;
|
|
|
|
void func1(Transform t) {
|
|
func1_count++;
|
|
}
|
|
void func2(Transform t, float f) {
|
|
func1_count++;
|
|
}
|
|
void func3(Transform t1, Transform t2, Transform t3, Transform t4, Transform t5, Transform t6) {
|
|
func1_count++;
|
|
}
|
|
Transform func1r(Transform t) {
|
|
func1_count++;
|
|
return t;
|
|
}
|
|
Transform func2r(Transform t, float f) {
|
|
func1_count++;
|
|
return t;
|
|
}
|
|
|
|
void add_msg_to_write(TestMsgType type) {
|
|
message_types_to_write.push_back(type);
|
|
}
|
|
|
|
void reader_thread_loop() {
|
|
reader_threadwork.thread_wait_for_work();
|
|
while (!exit_threads) {
|
|
if (message_count_to_read < 0) {
|
|
command_queue.flush_all();
|
|
}
|
|
for (int i = 0; i < message_count_to_read; i++) {
|
|
command_queue.wait_and_flush_one();
|
|
}
|
|
message_count_to_read = 0;
|
|
|
|
reader_threadwork.thread_done_work();
|
|
reader_threadwork.thread_wait_for_work();
|
|
}
|
|
command_queue.flush_all();
|
|
reader_threadwork.thread_done_work();
|
|
}
|
|
static void static_reader_thread_loop(void *stsvoid) {
|
|
SharedThreadState *sts = static_cast<SharedThreadState *>(stsvoid);
|
|
sts->reader_thread_loop();
|
|
}
|
|
|
|
void writer_thread_loop() {
|
|
during_writing = false;
|
|
writer_threadwork.thread_wait_for_work();
|
|
while (!exit_threads) {
|
|
Transform tr;
|
|
Transform otr;
|
|
float f = 1;
|
|
during_writing = true;
|
|
for (int i = 0; i < message_types_to_write.size(); i++) {
|
|
TestMsgType msg_type = message_types_to_write[i];
|
|
switch (msg_type) {
|
|
case TEST_MSG_FUNC1_TRANSFORM:
|
|
command_queue.push(this, &SharedThreadState::func1, tr);
|
|
break;
|
|
case TEST_MSG_FUNC2_TRANSFORM_FLOAT:
|
|
command_queue.push(this, &SharedThreadState::func2, tr, f);
|
|
break;
|
|
case TEST_MSG_FUNC3_TRANSFORMx6:
|
|
command_queue.push(this, &SharedThreadState::func3, tr, tr, tr, tr, tr, tr);
|
|
break;
|
|
case TEST_MSGSYNC_FUNC1_TRANSFORM:
|
|
command_queue.push_and_sync(this, &SharedThreadState::func1, tr);
|
|
break;
|
|
case TEST_MSGSYNC_FUNC2_TRANSFORM_FLOAT:
|
|
command_queue.push_and_sync(this, &SharedThreadState::func2, tr, f);
|
|
break;
|
|
case TEST_MSGRET_FUNC1_TRANSFORM:
|
|
command_queue.push_and_ret(this, &SharedThreadState::func1r, tr, &otr);
|
|
break;
|
|
case TEST_MSGRET_FUNC2_TRANSFORM_FLOAT:
|
|
command_queue.push_and_ret(this, &SharedThreadState::func2r, tr, f, &otr);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
message_types_to_write.clear();
|
|
during_writing = false;
|
|
|
|
writer_threadwork.thread_done_work();
|
|
writer_threadwork.thread_wait_for_work();
|
|
}
|
|
writer_threadwork.thread_done_work();
|
|
}
|
|
static void static_writer_thread_loop(void *stsvoid) {
|
|
SharedThreadState *sts = static_cast<SharedThreadState *>(stsvoid);
|
|
sts->writer_thread_loop();
|
|
}
|
|
|
|
void init_threads() {
|
|
reader_thread.start(&SharedThreadState::static_reader_thread_loop, this);
|
|
writer_thread.start(&SharedThreadState::static_writer_thread_loop, this);
|
|
}
|
|
void destroy_threads() {
|
|
exit_threads = true;
|
|
reader_threadwork.main_start_work();
|
|
writer_threadwork.main_start_work();
|
|
|
|
reader_thread.wait_to_finish();
|
|
writer_thread.wait_to_finish();
|
|
}
|
|
};
|
|
|
|
TEST_CASE("[CommandQueue] Test Queue Basics") {
|
|
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.add_msg_to_write(SharedThreadState::TEST_MSG_FUNC1_TRANSFORM);
|
|
sts.writer_threadwork.main_start_work();
|
|
sts.writer_threadwork.main_wait_for_done();
|
|
CHECK_MESSAGE(sts.func1_count == 0,
|
|
"Control: no messages read before reader has run.");
|
|
|
|
sts.message_count_to_read = 1;
|
|
sts.reader_threadwork.main_start_work();
|
|
sts.reader_threadwork.main_wait_for_done();
|
|
CHECK_MESSAGE(sts.func1_count == 1,
|
|
"Reader should have read one message");
|
|
|
|
sts.message_count_to_read = -1;
|
|
sts.reader_threadwork.main_start_work();
|
|
sts.reader_threadwork.main_wait_for_done();
|
|
CHECK_MESSAGE(sts.func1_count == 1,
|
|
"Reader should have read no additional messages from flush_all");
|
|
|
|
sts.add_msg_to_write(SharedThreadState::TEST_MSG_FUNC1_TRANSFORM);
|
|
sts.writer_threadwork.main_start_work();
|
|
sts.writer_threadwork.main_wait_for_done();
|
|
|
|
sts.message_count_to_read = -1;
|
|
sts.reader_threadwork.main_start_work();
|
|
sts.reader_threadwork.main_wait_for_done();
|
|
CHECK_MESSAGE(sts.func1_count == 2,
|
|
"Reader should have read one additional message from flush_all");
|
|
|
|
sts.destroy_threads();
|
|
|
|
CHECK_MESSAGE(sts.func1_count == 2,
|
|
"Reader should have read no additional messages after join");
|
|
ProjectSettings::get_singleton()->set_setting(COMMAND_QUEUE_SETTING,
|
|
ProjectSettings::get_singleton()->property_get_revert(COMMAND_QUEUE_SETTING));
|
|
}
|
|
|
|
TEST_CASE("[CommandQueue] Test Waiting at Queue Full") {
|
|
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();
|
|
|
|
int msgs_to_add = 24; // a queue of size 1kB fundamentally cannot fit 24 matrices.
|
|
for (int i = 0; i < msgs_to_add; i++) {
|
|
sts.add_msg_to_write(SharedThreadState::TEST_MSG_FUNC1_TRANSFORM);
|
|
}
|
|
sts.writer_threadwork.main_start_work();
|
|
// If we call main_wait_for_done, we will deadlock. So instead...
|
|
sts.message_count_to_read = 1;
|
|
sts.reader_threadwork.main_start_work();
|
|
sts.reader_threadwork.main_wait_for_done();
|
|
CHECK_MESSAGE(sts.func1_count == 1,
|
|
"Reader should have read one message");
|
|
CHECK_MESSAGE(sts.during_writing,
|
|
"Writer thread should still be blocked on writing.");
|
|
sts.message_count_to_read = msgs_to_add - 3;
|
|
sts.reader_threadwork.main_start_work();
|
|
sts.reader_threadwork.main_wait_for_done();
|
|
CHECK_MESSAGE(sts.func1_count >= msgs_to_add - 3,
|
|
"Reader should have read most messages");
|
|
sts.writer_threadwork.main_wait_for_done();
|
|
CHECK_MESSAGE(sts.during_writing == false,
|
|
"Writer thread should no longer be blocked on writing.");
|
|
sts.message_count_to_read = 2;
|
|
sts.reader_threadwork.main_start_work();
|
|
sts.reader_threadwork.main_wait_for_done();
|
|
sts.message_count_to_read = -1;
|
|
sts.reader_threadwork.main_start_work();
|
|
sts.reader_threadwork.main_wait_for_done();
|
|
CHECK_MESSAGE(sts.func1_count == msgs_to_add,
|
|
"Reader should have read all messages");
|
|
|
|
sts.destroy_threads();
|
|
|
|
CHECK_MESSAGE(sts.func1_count == msgs_to_add,
|
|
"Reader should have read no additional messages after join");
|
|
ProjectSettings::get_singleton()->set_setting(COMMAND_QUEUE_SETTING,
|
|
ProjectSettings::get_singleton()->property_get_revert(COMMAND_QUEUE_SETTING));
|
|
}
|
|
|
|
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);
|
|
SharedThreadState sts;
|
|
sts.init_threads();
|
|
|
|
sts.add_msg_to_write(SharedThreadState::TEST_MSG_FUNC3_TRANSFORMx6);
|
|
sts.add_msg_to_write(SharedThreadState::TEST_MSG_FUNC3_TRANSFORMx6);
|
|
sts.add_msg_to_write(SharedThreadState::TEST_MSG_FUNC1_TRANSFORM);
|
|
sts.writer_threadwork.main_start_work();
|
|
sts.writer_threadwork.main_wait_for_done();
|
|
|
|
sts.message_count_to_read = -1;
|
|
sts.reader_threadwork.main_start_work();
|
|
sts.reader_threadwork.main_wait_for_done();
|
|
CHECK_MESSAGE(sts.func1_count == 3,
|
|
"Reader should have read at least three messages");
|
|
|
|
sts.add_msg_to_write(SharedThreadState::TEST_MSG_FUNC3_TRANSFORMx6);
|
|
sts.writer_threadwork.main_start_work();
|
|
sts.writer_threadwork.main_wait_for_done();
|
|
sts.add_msg_to_write(SharedThreadState::TEST_MSG_FUNC1_TRANSFORM);
|
|
sts.add_msg_to_write(SharedThreadState::TEST_MSG_FUNC3_TRANSFORMx6);
|
|
sts.writer_threadwork.main_start_work();
|
|
OS::get_singleton()->delay_usec(1000);
|
|
|
|
sts.message_count_to_read = -1;
|
|
sts.reader_threadwork.main_start_work();
|
|
OS::get_singleton()->delay_usec(1000);
|
|
|
|
sts.writer_threadwork.main_wait_for_done();
|
|
sts.reader_threadwork.main_wait_for_done();
|
|
CHECK_MESSAGE(sts.func1_count >= 3,
|
|
"Reader should have read at least three messages");
|
|
|
|
sts.message_count_to_read = 6 - sts.func1_count;
|
|
sts.reader_threadwork.main_start_work();
|
|
|
|
// The following will fail immediately.
|
|
// The reason it hangs indefinitely in engine, is all subsequent calls to
|
|
// CommandQueue.wait_and_flush_one will also fail.
|
|
sts.reader_threadwork.main_wait_for_done();
|
|
|
|
// Because looping around uses an extra message, easiest to consume all.
|
|
sts.message_count_to_read = -1;
|
|
sts.reader_threadwork.main_start_work();
|
|
sts.reader_threadwork.main_wait_for_done();
|
|
CHECK_MESSAGE(sts.func1_count == 6,
|
|
"Reader should have read both message sets");
|
|
|
|
sts.destroy_threads();
|
|
|
|
CHECK_MESSAGE(sts.func1_count == 6,
|
|
"Reader should have read no additional messages after join");
|
|
ProjectSettings::get_singleton()->set_setting(COMMAND_QUEUE_SETTING,
|
|
ProjectSettings::get_singleton()->property_get_revert(COMMAND_QUEUE_SETTING));
|
|
}
|
|
|
|
TEST_CASE("[CommandQueue] Test Queue Lapping") {
|
|
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.add_msg_to_write(SharedThreadState::TEST_MSG_FUNC1_TRANSFORM);
|
|
sts.add_msg_to_write(SharedThreadState::TEST_MSG_FUNC3_TRANSFORMx6);
|
|
sts.add_msg_to_write(SharedThreadState::TEST_MSG_FUNC3_TRANSFORMx6);
|
|
sts.writer_threadwork.main_start_work();
|
|
sts.writer_threadwork.main_wait_for_done();
|
|
|
|
// We need to read an extra message so that it triggers the dealloc logic once.
|
|
// Otherwise, the queue will be considered full.
|
|
sts.message_count_to_read = 3;
|
|
sts.reader_threadwork.main_start_work();
|
|
sts.reader_threadwork.main_wait_for_done();
|
|
CHECK_MESSAGE(sts.func1_count == 3,
|
|
"Reader should have read first set of messages");
|
|
|
|
sts.add_msg_to_write(SharedThreadState::TEST_MSG_FUNC3_TRANSFORMx6);
|
|
sts.add_msg_to_write(SharedThreadState::TEST_MSG_FUNC3_TRANSFORMx6);
|
|
sts.writer_threadwork.main_start_work();
|
|
// Don't wait for these, because the queue isn't big enough.
|
|
sts.writer_threadwork.main_wait_for_done();
|
|
|
|
sts.add_msg_to_write(SharedThreadState::TEST_MSG_FUNC2_TRANSFORM_FLOAT);
|
|
sts.writer_threadwork.main_start_work();
|
|
OS::get_singleton()->delay_usec(1000);
|
|
|
|
sts.message_count_to_read = 3;
|
|
sts.reader_threadwork.main_start_work();
|
|
sts.reader_threadwork.main_wait_for_done();
|
|
|
|
sts.writer_threadwork.main_wait_for_done();
|
|
|
|
sts.message_count_to_read = -1;
|
|
sts.reader_threadwork.main_start_work();
|
|
sts.reader_threadwork.main_wait_for_done();
|
|
|
|
CHECK_MESSAGE(sts.func1_count == 6,
|
|
"Reader should have read rest of the messages after lapping writers.");
|
|
|
|
sts.destroy_threads();
|
|
|
|
CHECK_MESSAGE(sts.func1_count == 6,
|
|
"Reader should have read no additional messages after join");
|
|
ProjectSettings::get_singleton()->set_setting(COMMAND_QUEUE_SETTING,
|
|
ProjectSettings::get_singleton()->property_get_revert(COMMAND_QUEUE_SETTING));
|
|
}
|
|
|
|
TEST_CASE("[Stress][CommandQueue] Stress test command queue") {
|
|
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();
|
|
|
|
RandomNumberGenerator rng;
|
|
|
|
rng.set_seed(1837267);
|
|
|
|
int msgs_to_add = 2048;
|
|
|
|
for (int i = 0; i < msgs_to_add; i++) {
|
|
// randi_range is inclusive, so allow any enum value except MAX.
|
|
sts.add_msg_to_write((SharedThreadState::TestMsgType)rng.randi_range(0, SharedThreadState::TEST_MSG_MAX - 1));
|
|
}
|
|
sts.writer_threadwork.main_start_work();
|
|
|
|
int max_loop_iters = msgs_to_add * 2;
|
|
int loop_iters = 0;
|
|
while (sts.func1_count < msgs_to_add && loop_iters < max_loop_iters) {
|
|
int remaining = (msgs_to_add - sts.func1_count);
|
|
sts.message_count_to_read = rng.randi_range(1, remaining < 128 ? remaining : 128);
|
|
if (loop_iters % 3 == 0) {
|
|
sts.message_count_to_read = -1;
|
|
}
|
|
sts.reader_threadwork.main_start_work();
|
|
sts.reader_threadwork.main_wait_for_done();
|
|
loop_iters++;
|
|
}
|
|
CHECK_MESSAGE(loop_iters < max_loop_iters,
|
|
"Reader needed too many iterations to read messages!");
|
|
sts.writer_threadwork.main_wait_for_done();
|
|
|
|
sts.destroy_threads();
|
|
|
|
CHECK_MESSAGE(sts.func1_count == msgs_to_add,
|
|
"Reader should have read no additional messages after join");
|
|
ProjectSettings::get_singleton()->set_setting(COMMAND_QUEUE_SETTING,
|
|
ProjectSettings::get_singleton()->property_get_revert(COMMAND_QUEUE_SETTING));
|
|
}
|
|
} // namespace TestCommandQueue
|
|
|
|
#endif // !defined(NO_THREADS)
|
|
|
|
#endif // TEST_COMMAND_QUEUE_H
|