// Copyright 2013 Google Inc. All Rights Reserved.
//
// Lock class - provides a simple android specific mutex implementation

#include "lock.h"
#include "utils/Mutex.h"

namespace wvcdm {

class Lock::Impl {
 public:
  android::Mutex lock_;
};

Lock::Lock() : impl_(new Lock::Impl()) {
}

Lock::~Lock() {
  delete impl_;
  impl_ = NULL;
}

void Lock::Acquire() {
  impl_->lock_.lock();
}

void Lock::Release() {
  impl_->lock_.unlock();
}

bool Lock::Try() {
  return (impl_->lock_.tryLock() == 0);
}

class AutoLock::Impl {
 public:
  android::Mutex::Autolock *autolock_;
};

AutoLock::AutoLock(Lock& lock) : impl_(new AutoLock::Impl()) {
  impl_->autolock_ = new android::Mutex::Autolock(lock.impl_->lock_);
}

AutoLock::AutoLock(Lock* lock) : impl_(new AutoLock::Impl()) {
  impl_->autolock_ = new android::Mutex::Autolock(lock->impl_->lock_);
}

AutoLock::~AutoLock() {
  delete impl_->autolock_;
  delete impl_;
  impl_ = NULL;
}

};  // namespace wvcdm