From 72bffb0807925a156b076b71f78c848a08d27b87 Mon Sep 17 00:00:00 2001
From: lichao <lichao@aiotlink.com>
Date: 星期四, 29 四月 2021 10:55:35 +0800
Subject: [PATCH] refactor mutex.
---
utest/robust_test.cpp | 104 +++++++++++++++++++++++++++++++++++++++++++++------
1 files changed, 91 insertions(+), 13 deletions(-)
diff --git a/utest/robust_test.cpp b/utest/robust_test.cpp
index 0d54b46..9384c10 100644
--- a/utest/robust_test.cpp
+++ b/utest/robust_test.cpp
@@ -3,8 +3,13 @@
using namespace robust;
+enum {
+ eLockerBits = 32,
+ eLockerMask = MaskBits(sizeof(int) * 8),
+};
+
typedef CircularBuffer<int64_t, Allocator<int64_t>> Rcb;
-Rcb *GetRCBImpl(SharedMemory &shm, const int nelem)
+Rcb *GetRCB(SharedMemory &shm, const int nelem)
{
int cap = nelem + 1;
typedef uint64_t Data;
@@ -15,24 +20,13 @@
}
return nullptr;
}
-Rcb *GetRCB(SharedMemory &shm, const int nelem)
-{
- void **pStore = shm.FindOrCreate<void *>("test_rcb_pointer", nullptr);
- if (pStore) {
- if (!*pStore) {
- *pStore = GetRCBImpl(shm, nelem);
- }
- return (Rcb *) *pStore;
- }
- return nullptr;
-}
void MySleep()
{
std::this_thread::sleep_for(2us);
}
-BOOST_AUTO_TEST_CASE(RobustTest)
+BOOST_AUTO_TEST_CASE(QueueTest)
{
SharedMemory &shm = TestShm();
shm.Remove();
@@ -112,4 +106,88 @@
threads.WaitAll();
printf("total: %ld, expected: %ld\n", total.load(), correct_total);
BOOST_CHECK_EQUAL(total.load(), correct_total);
+}
+
+BOOST_AUTO_TEST_CASE(MutexTest)
+{
+ typedef robust::Mutex RobustMutex;
+
+ for (int i = 0; i < 20; ++i) {
+ int size = i;
+ int left = size & 7;
+ int rsize = size + ((8 - left) & 7);
+ printf("size: %3d, rsize: %3d\n", size, rsize);
+ }
+ SharedMemory &shm = TestShm();
+ // shm.Remove();
+ // return;
+ GlobalInit(shm);
+
+ const std::string mtx_name("test_mutex");
+ const std::string int_name("test_int");
+ auto mtx = shm.FindOrCreate<RobustMutex>(mtx_name);
+ auto pi = shm.FindOrCreate<int>(int_name, 100);
+
+ std::mutex m;
+ 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;
+ const int ntimes = 1000 * 1000;
+ printf("test lock/unlock %d times: ", ntimes);
+ RobustMutex mutex;
+ auto Lock = [&]() {
+ for (int i = 0; i < ntimes; ++i) {
+ mutex.lock();
+ mutex.unlock();
+ }
+ };
+ std::thread t1(Lock), t2(Lock);
+ t1.join();
+ t2.join();
+ }
+
+ 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()) {
+ printf("try_lock ok\n");
+ return true;
+ } else {
+ printf("try_lock failed\n");
+ return false;
+ }
+ };
+ auto Unlock = [&]() {
+ mtx->unlock();
+ printf("unlocked\n");
+ };
+
+ if (mtx) {
+ printf("mtx exists\n");
+ if (TryLock()) {
+ auto op = [&]() {
+ if (TryLock()) {
+ Unlock();
+ }
+ };
+ op();
+ std::thread t(op);
+ t.join();
+ // Unlock();
+ } else {
+ // mtx->unlock();
+ }
+ } else {
+ printf("mtx not exists\n");
+ }
}
\ No newline at end of file
--
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