2 files changed, 45 insertions, 1 deletions
diff --git a/works/life/computer-network-experiment/ReadWriteLock.cpp b/works/life/computer-network-experiment/ReadWriteLock.cpp
index d9b6e3e..3509e0b 100644
--- a/works/life/computer-network-experiment/ReadWriteLock.cpp
+++ b/works/life/computer-network-experiment/ReadWriteLock.cpp
@@ -2,6 +2,7 @@
 
 #include <cassert>
 #include <memory>
+#include <pthread.h>
 
 namespace cru {
 ReadWriteLock::ReadWriteLock() {
@@ -9,6 +10,8 @@ ReadWriteLock::ReadWriteLock() {
   lock_ = std::make_unique<SRWLOCK>();
   InitializeSRWLock(lock_.get());
 #else
+  lock_.reset(new pthread_rwlock_t(PTHREAD_RWLOCK_INITIALIZER));
+  pthread_rwlock_init(lock_.get(), nullptr);
 #endif
 }
 
@@ -27,33 +30,69 @@ ReadWriteLock::~ReadWriteLock() { Destroy(); }
 
 void ReadWriteLock::ReadLock() {
   assert(lock_);
+#ifdef WIN32
   AcquireSRWLockShared(lock_.get());
+#else
+  pthread_rwlock_rdlock(lock_.get());
+#endif
 }
 
 void ReadWriteLock::WriteLock() {
   assert(lock_);
+#ifdef WIN32
   AcquireSRWLockExclusive(lock_.get());
+#else
+  pthread_rwlock_wrlock(lock_.get());
+#endif
 }
 
 bool ReadWriteLock::ReadTryLock() {
   assert(lock_);
+#ifdef WIN32
   return TryAcquireSRWLockShared(lock_.get()) != 0;
+#else
+  return pthread_rwlock_tryrdlock(lock_.get()) == 0;
+#endif
 }
 
 bool ReadWriteLock::WriteTryLock() {
   assert(lock_);
+#ifdef WIN32
   return TryAcquireSRWLockExclusive(lock_.get()) != 0;
+#else
+  return pthread_rwlock_trywrlock(lock_.get()) == 0;
+#endif
 }
 
 void ReadWriteLock::ReadUnlock() {
   assert(lock_);
+#ifdef WIN32
   ReleaseSRWLockShared(lock_.get());
+#else
+  pthread_rwlock_unlock(lock_.get());
+#endif
 }
 
 void ReadWriteLock::WriteUnlock() {
   assert(lock_);
+#ifdef WIN32
   ReleaseSRWLockExclusive(lock_.get());
+#else
+  pthread_rwlock_unlock(lock_.get());
+#endif
+}
+
+void ReadWriteLock::Destroy() {
+#ifndef WIN32
+  if (lock_ != nullptr)
+    pthread_rwlock_destroy(lock_.get());
+#endif
+}
+
+void swap(ReadWriteLock &left, ReadWriteLock &right) {
+  auto temp = std::move(left.lock_);
+  left.lock_ = std::move(right.lock_);
+  right.lock_ = std::move(temp);
 }
 
-void ReadWriteLock::Destroy() {}
 } // namespace cru
 \ No newline at end of file
diff --git a/works/life/computer-network-experiment/ReadWriteLock.h b/works/life/computer-network-experiment/ReadWriteLock.h
index c9889da..ee40ac0 100644
--- a/works/life/computer-network-experiment/ReadWriteLock.h
+++ b/works/life/computer-network-experiment/ReadWriteLock.h
@@ -6,10 +6,12 @@
 #ifdef WIN32
 #include <Windows.h>
 #else
+#include <pthread.h>
 #endif
 
 namespace cru {
 class ReadWriteLock {
+  friend void swap(ReadWriteLock &left, ReadWriteLock &right);
 public:
   ReadWriteLock();
 
@@ -35,6 +37,9 @@ private:
 #ifdef WIN32
   std::unique_ptr<SRWLOCK> lock_;
 #else
+  std::unique_ptr<pthread_rwlock_t> lock_;
 #endif
 };
+
+void swap(ReadWriteLock &left, ReadWriteLock &right);
 } // namespace cru