//===-- HostThreadPosix.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/Host/posix/HostThreadPosix.h"

#include "lldb/Utility/Status.h"

#include <cerrno>

#include <pthread.h>

using namespace lldb;

using namespace lldb_private;

HostThreadPosix::HostThreadPosix() = default;

HostThreadPosix::HostThreadPosix(lldb::thread_t thread)

    : HostNativeThreadBase(thread) {}

HostThreadPosix::~HostThreadPosix() = default;

Status HostThreadPosix::Join(lldb::thread_result_t *result) {

  Status error;

  if (IsJoinable()) {

    int err = ::pthread_join(m_thread, result);

    error.SetError(err, lldb::eErrorTypePOSIX);

  } else {

    if (result)

      *result = nullptr;

    error.SetError(EINVAL, eErrorTypePOSIX);

  }

  Reset();

  return error;

}

Status HostThreadPosix::Cancel() {

  Status error;

  if (IsJoinable()) {

#ifndef __FreeBSD__

    llvm_unreachable("someone is calling HostThread::Cancel()");

#else

    int err = ::pthread_cancel(m_thread);

    error.SetError(err, eErrorTypePOSIX);

#endif

  }

  return error;

}

Status HostThreadPosix::Detach() {

  Status error;

  if (IsJoinable()) {

    int err = ::pthread_detach(m_thread);

    error.SetError(err, eErrorTypePOSIX);

  }

  Reset();

  return error;

}