From a84887356487a4fcbd57a90f3ce17914ea8bdd0a Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Tue, 8 Jun 2021 20:22:21 +0800
Subject: import(life): ...

---
 .../computer-network-experiment/ReadWriteLock.cpp  | 59 ++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 works/life/computer-network-experiment/ReadWriteLock.cpp

(limited to 'works/life/computer-network-experiment/ReadWriteLock.cpp')

diff --git a/works/life/computer-network-experiment/ReadWriteLock.cpp b/works/life/computer-network-experiment/ReadWriteLock.cpp
new file mode 100644
index 0000000..d9b6e3e
--- /dev/null
+++ b/works/life/computer-network-experiment/ReadWriteLock.cpp
@@ -0,0 +1,59 @@
+#include "ReadWriteLock.h"
+
+#include <cassert>
+#include <memory>
+
+namespace cru {
+ReadWriteLock::ReadWriteLock() {
+#ifdef WIN32
+  lock_ = std::make_unique<SRWLOCK>();
+  InitializeSRWLock(lock_.get());
+#else
+#endif
+}
+
+ReadWriteLock::ReadWriteLock(ReadWriteLock &&other)
+    : lock_(std::move(other.lock_)) {}
+
+ReadWriteLock &ReadWriteLock::operator=(ReadWriteLock &&other) {
+  if (this != &other) {
+    Destroy();
+    lock_ = std::move(other.lock_);
+  }
+  return *this;
+}
+
+ReadWriteLock::~ReadWriteLock() { Destroy(); }
+
+void ReadWriteLock::ReadLock() {
+  assert(lock_);
+  AcquireSRWLockShared(lock_.get());
+}
+
+void ReadWriteLock::WriteLock() {
+  assert(lock_);
+  AcquireSRWLockExclusive(lock_.get());
+}
+
+bool ReadWriteLock::ReadTryLock() {
+  assert(lock_);
+  return TryAcquireSRWLockShared(lock_.get()) != 0;
+}
+
+bool ReadWriteLock::WriteTryLock() {
+  assert(lock_);
+  return TryAcquireSRWLockExclusive(lock_.get()) != 0;
+}
+
+void ReadWriteLock::ReadUnlock() {
+  assert(lock_);
+  ReleaseSRWLockShared(lock_.get());
+}
+
+void ReadWriteLock::WriteUnlock() {
+  assert(lock_);
+  ReleaseSRWLockExclusive(lock_.get());
+}
+
+void ReadWriteLock::Destroy() {}
+} // namespace cru
\ No newline at end of file
-- 
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