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-rw-r--r--works/life/operating-system-experiment/Mutex.cpp100
1 files changed, 0 insertions, 100 deletions
diff --git a/works/life/operating-system-experiment/Mutex.cpp b/works/life/operating-system-experiment/Mutex.cpp
deleted file mode 100644
index 8acfdc5..0000000
--- a/works/life/operating-system-experiment/Mutex.cpp
+++ /dev/null
@@ -1,100 +0,0 @@
-#include "Mutex.h"
-
-#include <cassert>
-
-#ifndef CRU_WINDOWS
-#include <errno.h>
-#endif
-
-namespace cru {
-Mutex::Mutex() {
-#ifdef CRU_WINDOWS
- handle_ = CreateMutexW(nullptr, FALSE, nullptr);
- assert(handle_);
-#else
- mutex_ = std::make_unique<pthread_mutex_t>();
-
- auto c = pthread_mutex_init(mutex_.get(), nullptr);
- assert(c == 0);
-#endif
-}
-
-Mutex::Mutex(Mutex &&other)
-#ifdef CRU_WINDOWS
- : handle_(other.handle_)
-#else
- : mutex_(std::move(other.mutex_))
-#endif
-{
-#ifdef CRU_WINDOWS
- other.handle_ = nullptr;
-#endif
-}
-
-Mutex &Mutex::operator=(Mutex &&other) {
- if (this != &other) {
- Destroy();
-#ifdef CRU_WINDOWS
- handle_ = other.handle_;
- other.handle_ = nullptr;
-#else
- mutex_ = std::move(other.mutex_);
-#endif
- }
- return *this;
-}
-
-Mutex::~Mutex() { Destroy(); }
-
-void Mutex::Lock() {
-#ifdef CRU_WINDOWS
- auto c = WaitForSingleObject(handle_, INFINITE);
- assert(c == WAIT_OBJECT_0);
-#else
- assert(mutex_);
- auto c = pthread_mutex_lock(mutex_.get());
- assert(c == 0);
-#endif
-}
-
-bool Mutex::TryLock() {
-#ifdef CRU_WINDOWS
- auto c = WaitForSingleObject(handle_, 0);
- assert(c == WAIT_OBJECT_0 || c == WAIT_TIMEOUT);
- return c == WAIT_OBJECT_0 ? true : false;
-#else
- assert(mutex_);
- auto c = pthread_mutex_trylock(mutex_.get());
- assert(c == 0 || c == EBUSY);
- return c == 0 ? true : false;
-#endif
-}
-
-void Mutex::Unlock() {
-#ifdef CRU_WINDOWS
- auto c = ReleaseMutex(handle_);
- assert(c);
-#else
- assert(mutex_);
- auto c = pthread_mutex_unlock(mutex_.get());
- assert(c == 0);
-#endif
-}
-
-void Mutex::Destroy() {
-#ifdef CRU_WINDOWS
- if (handle_ != nullptr) {
- auto c = CloseHandle(handle_);
- assert(c);
- handle_ = nullptr;
- }
-#else
- if (mutex_ != nullptr) {
- auto c = pthread_mutex_destroy(mutex_.get());
- assert(c == 0);
- mutex_ = nullptr;
- }
-#endif
-}
-
-} // namespace cru