From 02ba913dc7bb5d711471b27f2ea23a897d0f2e28 Mon Sep 17 00:00:00 2001
From: lichao <lichao@aiotlink.com>
Date: 星期五, 23 四月 2021 15:34:26 +0800
Subject: [PATCH] bind msgi to shm, change offset_ptr to abs offset.

---
 utest/api_test.cpp |  142 +++++++++++++++++++++++++++++++++++++++++++++--
 1 files changed, 135 insertions(+), 7 deletions(-)

diff --git a/utest/api_test.cpp b/utest/api_test.cpp
index 766c0f8..200ae99 100644
--- a/utest/api_test.cpp
+++ b/utest/api_test.cpp
@@ -96,20 +96,140 @@
 	// printf("client Recv reply : %s\n", reply.data().c_str());
 }
 
+class TLMutex
+{
+	// typedef boost::interprocess::interprocess_mutex MutexT;
+	typedef CasMutex MutexT;
+	// typedef std::mutex MutexT;
+	typedef std::chrono::steady_clock Clock;
+	typedef Clock::duration Duration;
+	static Duration Now() { return Clock::now().time_since_epoch(); }
+
+	const Duration limit_;
+	std::atomic<Duration> last_lock_time_;
+	MutexT mutex_;
+
+public:
+	struct Status {
+		int64_t nlock_ = 0;
+		int64_t nupdate_time_fail = 0;
+		int64_t nfail = 0;
+		int64_t nexcept = 0;
+	};
+	Status st_;
+
+	explicit TLMutex(Duration limit) :
+	    limit_(limit) {}
+	TLMutex() :
+	    TLMutex(std::chrono::seconds(1)) {}
+	~TLMutex() { static_assert(std::is_pod<Duration>::value); }
+	bool try_lock()
+	{
+		if (mutex_.try_lock()) {
+			auto old_time = last_lock_time_.load();
+			if (Now() - old_time > limit_) {
+				return last_lock_time_.compare_exchange_strong(old_time, Now());
+			} else {
+				last_lock_time_.store(Now());
+				return true;
+			}
+		} else {
+			auto old_time = last_lock_time_.load();
+			if (Now() - old_time > limit_) {
+				return last_lock_time_.compare_exchange_strong(old_time, Now());
+			} else {
+				return false;
+			}
+		}
+	}
+	void lock()
+	{
+		int n = 0;
+		while (!try_lock()) {
+			n++;
+			std::this_thread::yield();
+		}
+		st_.nlock_ += n;
+	}
+	void unlock() { mutex_.unlock(); }
+};
+
+namespace
+{
+typedef int64_t Offset;
+Offset Addr(void *ptr) { return reinterpret_cast<Offset>(ptr); }
+void *Ptr(const Offset offset) { return reinterpret_cast<void *>(offset); }
+} // namespace
+
 BOOST_AUTO_TEST_CASE(MutexTest)
 {
-	const std::string shm_name("ShmMutex");
-	// ShmRemover auto_remove(shm_name);
-	SharedMemory shm(shm_name, 1024 * 1024 * 10);
+	SharedMemory &shm = TestShm();
+	MsgI::BindShm(shm);
+
+	void *base_ptr = shm.get_address();
+	auto PrintPtr = [&](void *p) {
+		printf("addr: %ld, ptr: %p, offset: %ld\n", Addr(p), p, Addr(p) - Addr(base_ptr));
+	};
+
+	printf("base");
+	PrintPtr(base_ptr);
+
+	MsgI msg;
+	msg.Make("string data");
+	for (int i = 0; i < 10; ++i) {
+		int n = msg.AddRef();
+		printf("add %d ref: %d\n", i, n);
+	}
+	for (int i = 0; i < 10; ++i) {
+		int n = msg.Release();
+		printf("release %d, ref : %d\n", i, n);
+	}
+	std::this_thread::sleep_for(1s);
+	msg.Release();
 
 	const std::string mtx_name("test_mutex");
 	const std::string int_name("test_int");
 	auto mtx = shm.find_or_construct<Mutex>(mtx_name.c_str())();
 	auto pi = shm.find_or_construct<int>(int_name.c_str())(100);
+
+	printf("mutetx ");
+	PrintPtr(mtx);
+	printf("int ");
+	PrintPtr(pi);
+
+	typedef std::chrono::steady_clock Clock;
+	auto Now = []() { return Clock::now().time_since_epoch(); };
 	if (pi) {
 		auto old = *pi;
 		printf("int : %d, add1: %d\n", old, ++*pi);
 	}
+
+	{
+		boost::timer::auto_cpu_timer timer;
+		printf("test time: ");
+		TLMutex mutex;
+		// CasMutex mutex;
+		auto Lock = [&]() {
+			for (int i = 0; i < 1000 * 100; ++i) {
+				mutex.lock();
+				mutex.unlock();
+			}
+		};
+		std::thread t1(Lock), t2(Lock);
+		t1.join();
+		t2.join();
+		printf("mutex nlock: %ld, update time error: %ld, normal fail: %ld, error wait: %ld\n",
+		       mutex.st_.nlock_,
+		       mutex.st_.nupdate_time_fail,
+		       mutex.st_.nfail,
+		       mutex.st_.nexcept);
+	}
+
+	auto MSFromNow = [](const int ms) {
+		using namespace boost::posix_time;
+		ptime cur = boost::posix_time::microsec_clock::universal_time();
+		return cur + millisec(ms);
+	};
 
 	auto TryLock = [&]() {
 		if (mtx->try_lock()) {
@@ -128,10 +248,17 @@
 	if (mtx) {
 		printf("mtx exists\n");
 		if (TryLock()) {
-			if (TryLock()) {
-				Unlock();
-			}
+			auto op = [&]() {
+				if (TryLock()) {
+					Unlock();
+				}
+			};
+			op();
+			std::thread t(op);
+			t.join();
 			// Unlock();
+		} else {
+			// mtx->unlock();
 		}
 	} else {
 		printf("mtx not exists\n");
@@ -223,7 +350,8 @@
 			void *msg_id = 0;
 			int len = 0;
 			// Sleep(10ms, false);
-			bool r = BHAsyncRequest(s.data(), s.size(), 0, 0);
+			std::string dest(BHAddress().SerializeAsString());
+			bool r = BHAsyncRequest(dest.data(), dest.size(), s.data(), s.size(), 0, 0);
 			DEFER1(BHFree(msg_id, len););
 			if (r) {
 				++Status().nrequest_;

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