SBMutex.cpp

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//===-- SBMutex.cpp -------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
 
#include "lldb/API/SBMutex.h"
#include "lldb/Target/Target.h"
#include "lldb/Utility/Instrumentation.h"
#include "lldb/lldb-forward.h"
#include <memory>
#include <mutex>
 
using namespace lldb;
using namespace lldb_private;
 
SBMutex::SBMutex() : m_opaque_sp(std::make_shared<std::recursive_mutex>()) {
  LLDB_INSTRUMENT_VA(this);
}
 
SBMutex::SBMutex(const SBMutex &rhs) : m_opaque_sp(rhs.m_opaque_sp) {
  LLDB_INSTRUMENT_VA(this);
}
 
const SBMutex &SBMutex::operator=(const SBMutex &rhs) {
  LLDB_INSTRUMENT_VA(this);
 
  m_opaque_sp = rhs.m_opaque_sp;
  return *this;
}
 
SBMutex::SBMutex(lldb::TargetSP target_sp)
    : m_opaque_sp(std::shared_ptr<std::recursive_mutex>(
          target_sp, &target_sp->GetAPIMutex())) {
  LLDB_INSTRUMENT_VA(this, target_sp);
}
 
SBMutex::~SBMutex() { LLDB_INSTRUMENT_VA(this); }
 
bool SBMutex::IsValid() const {
  LLDB_INSTRUMENT_VA(this);
 
  return static_cast<bool>(m_opaque_sp);
}
 
void SBMutex::lock() const {
  LLDB_INSTRUMENT_VA(this);
 
  if (m_opaque_sp)
    m_opaque_sp->lock();
}
 
void SBMutex::unlock() const {
  LLDB_INSTRUMENT_VA(this);
 
  if (m_opaque_sp)
    m_opaque_sp->unlock();
}