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socket_private.hh
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socket_private.hh
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// Copyright Stephan T. Lavavej, http://nuwen.net .
// Distributed under the Boost Software License, Version 1.0.
// See accompanying file LICENSE_1_0.txt or copy at
// http://boost.org/LICENSE_1_0.txt .
#ifndef PHAM_SOCKET_PRIVATE_HH
#define PHAM_SOCKET_PRIVATE_HH
#include "compiler.hh"
#ifdef NUWEN_PLATFORM_MSVC
#pragma once
#endif
#include "external_begin.hh"
#include <algorithm>
#include <stdexcept>
#include <boost/utility.hpp>
#ifdef NUWEN_PLATFORM_WINDOWS
#include <winsock2.h>
#include <ws2tcpip.h>
#endif
#ifdef NUWEN_PLATFORM_UNIX
#include <netdb.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#endif
#include "external_end.hh"
#ifdef NUWEN_PLATFORM_WINDOWS
typedef SOCKET PHAM_SOCKET;
#endif
#ifdef NUWEN_PLATFORM_UNIX
typedef int PHAM_SOCKET;
#endif
namespace pham {
inline bool invalid_socket(const PHAM_SOCKET s) {
return s == static_cast<PHAM_SOCKET>(-1);
}
inline bool socket_error(const int n) {
#ifdef NUWEN_PLATFORM_WINDOWS
return n == SOCKET_ERROR;
#endif
#ifdef NUWEN_PLATFORM_UNIX
return n == -1;
#endif
}
}
#ifdef NUWEN_PLATFORM_GCC
#pragma GCC system_header
#endif
namespace pham {
namespace sock {
class wrapped_fd_set : public boost::noncopyable {
public:
wrapped_fd_set() : m_dirty(false), m_empty(true), m_max(0) {
FD_ZERO(&m_set);
}
bool contains(const PHAM_SOCKET s) const {
return FD_ISSET(s, &m_set) != 0;
}
fd_set * ptr() {
m_dirty = true;
return m_empty ? NULL : &m_set;
}
void add(const PHAM_SOCKET s) {
validate();
FD_SET(s, &m_set);
m_empty = false;
m_max = std::max(s, m_max);
}
bool empty() const {
validate();
return m_empty;
}
PHAM_SOCKET maximum() const {
validate();
return m_max;
}
private:
void validate() const {
if (m_dirty) {
throw std::logic_error("LOGIC ERROR: pham::sock::wrapped_fd_set::validate() - ptr() invalidated this object.");
}
}
fd_set m_set;
bool m_dirty;
bool m_empty;
PHAM_SOCKET m_max;
};
}
}
#endif // Idempotency