Files
eepp/src/tools/eterm/system/autohandle.cpp
Martín Lucas Golini 4edea3d2c2 More clean up.
2022-06-18 01:04:28 -03:00

95 lines
2.7 KiB
C++

// The MIT License (MIT)
// Copyright (c) 2020 Fredrik A. Kristiansen
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
#include "autohandle.hpp"
#ifndef _WIN32
#include <unistd.h>
#else
#include <windows.h>
#endif
EE::AutoHandle::AutoHandle() : m_hHandle( invalid_value() ) {}
EE::AutoHandle::AutoHandle( AutoHandle&& other ) : m_hHandle( other.m_hHandle ) {
other.m_hHandle = invalid_value();
}
EE::AutoHandle::~AutoHandle() {
Release();
}
EE::AutoHandle& EE::AutoHandle::operator=( AutoHandle&& other ) {
if ( m_hHandle == other.m_hHandle )
return *this;
Release();
m_hHandle = other.m_hHandle;
other.m_hHandle = invalid_value();
return *this;
}
#ifdef _WIN32
EE::AutoHandle::AutoHandle( HANDLE handle ) : m_hHandle( handle ) {}
void EE::AutoHandle::Release() const {
if ( m_hHandle != INVALID_HANDLE_VALUE ) {
CloseHandle( m_hHandle );
m_hHandle = INVALID_HANDLE_VALUE;
}
}
#else
EE::AutoHandle::AutoHandle( int fd ) : m_hHandle( fd ) {}
void EE::AutoHandle::Release() const {
if ( m_hHandle != -1 ) {
close( m_hHandle );
}
}
#endif
EE::AutoHandle::operator bool() const noexcept {
return m_hHandle != invalid_value();
}
EE::AutoHandle::type* EE::AutoHandle::Get() {
return &m_hHandle;
}
const EE::AutoHandle::type* EE::AutoHandle::Get() const {
return &m_hHandle;
}
EE::AutoHandle::operator EE::AutoHandle::type() const noexcept {
return m_hHandle;
}
#ifdef _WIN32
// On Windows we deal with the Windows API, which means HANDLE is used as the handle to files
// and pipes
constexpr EE::AutoHandle::type EE::AutoHandle::invalid_value() {
return static_cast<AutoHandle::type>( 0 );
}
#else
// On non-Windows OS'es we deal with file descriptors
constexpr EE::AutoHandle::type EE::AutoHandle::invalid_value() {
return -1;
}
#endif