import(life): ...

1 files changed, 20 insertions, 0 deletions

diff --git a/works/life/operating-system-experiment/Semaphore.cpp b/works/life/operating-system-experiment/Semaphore.cpp
index e8221fd..aceef4d 100644
--- a/works/life/operating-system-experiment/Semaphore.cpp
+++ b/works/life/operating-system-experiment/Semaphore.cpp
@@ -9,6 +9,8 @@
 namespace cru {
 Semaphore::Semaphore(unsigned init_value) {
 #ifdef CRU_WINDOWS
+  handle_ = CreateSemaphoreW(nullptr, init_value, 100, nullptr);
+  assert(handle_);
 #else
   semaphore_ = std::make_unique<sem_t>();
   auto c = sem_init(semaphore_.get(), 0, init_value);
@@ -18,16 +20,22 @@ Semaphore::Semaphore(unsigned init_value) {
 
 Semaphore::Semaphore(Semaphore &&other)
 #ifdef CRU_WINDOWS
+    : handle_(other.handle_)
 #else
     : semaphore_(std::move(other.semaphore_))
 #endif
 {
+#ifdef CRU_WINDOWS
+  other.handle_ = nullptr;
+#endif
 }
 
 Semaphore &Semaphore::operator=(Semaphore &&other) {
   if (this != &other) {
     Destroy();
 #ifdef CRU_WINDOWS
+    handle_ = other.handle_;
+    other.handle_ = nullptr;
 #else
     semaphore_ = std::move(other.semaphore_);
 #endif
@@ -42,6 +50,8 @@ void Semaphore::V() { Release(); }
 
 void Semaphore::Acquire() {
 #ifdef CRU_WINDOWS
+  auto c = WaitForSingleObject(handle_, INFINITE);
+  assert(c == WAIT_OBJECT_0);
 #else
   auto c = sem_wait(semaphore_.get());
   assert(c == 0);
@@ -50,6 +60,9 @@ void Semaphore::Acquire() {
 
 bool Semaphore::TryAcquire() {
 #ifdef CRU_WINDOWS
+  auto c = WaitForSingleObject(handle_, 0);
+  assert(c == WAIT_OBJECT_0 || c == WAIT_TIMEOUT);
+  return c == WAIT_OBJECT_0 ? true : false;
 #else
   auto c = sem_trywait(semaphore_.get());
   assert((c == 0) || (c == -1 && errno == EAGAIN));
@@ -59,6 +72,8 @@ bool Semaphore::TryAcquire() {
 
 void Semaphore::Release() {
 #ifdef CRU_WINDOWS
+  auto c = ReleaseSemaphore(handle_, 1, nullptr);
+  assert(c);
 #else
   auto c = sem_post(semaphore_.get());
   assert(c == 0);
@@ -67,6 +82,11 @@ void Semaphore::Release() {
 
 void Semaphore::Destroy() {
 #ifdef CRU_WINDOWS
+  if (handle_ != nullptr) {
+    auto c = CloseHandle(handle_);
+    assert(c);
+    handle_ = nullptr;
+  }
 #else
   if (semaphore_ != nullptr) {
     auto c = sem_destroy(semaphore_.get());