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#include "Mutex.h"
#include <cassert>
#include <pthread.h>
#ifndef CRU_WINDOWS
#include <errno.h>
#endif
namespace cru {
Mutex::Mutex() {
#ifdef CRU_WINDOWS
#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
#else
: mutex_(std::move(other.mutex_))
#endif
{
}
Mutex &Mutex::operator=(Mutex &&other) {
if (this != &other) {
Destroy();
mutex_ = std::move(other.mutex_);
}
return *this;
}
Mutex::~Mutex() { Destroy(); }
void Mutex::Lock() {
#ifdef CRU_WINDOWS
#else
assert(mutex_);
auto c = pthread_mutex_lock(mutex_.get());
assert(c == 0);
#endif
}
bool Mutex::TryLock() {
#ifdef CRU_WINDOWS
#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
#else
assert(mutex_);
auto c = pthread_mutex_unlock(mutex_.get());
assert(c == 0);
#endif
}
void Mutex::Destroy() {
#ifdef CRU_WINDOWS
#else
if (mutex_ != nullptr) {
auto c = pthread_mutex_destroy(mutex_.get());
assert(c);
mutex_ = nullptr;
}
#endif
}
} // namespace cru
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