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Socket.cpp
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101 lines (79 loc) · 2.37 KB
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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include "Socket.h"
#include "lib/streflop/streflop_cond.h"
#include "System/Log/ILog.h"
#include "System/StringUtil.h"
namespace netcode
{
asio::io_service netservice;
bool CheckErrorCode(asio::error_code& err)
{
// connection reset can happen when host did not start up
// before the client wants to connect
if (!err || err.value() == asio::error::connection_reset ||
err.value() == asio::error::try_again) { // this should only ever happen with async sockets, but testing indicates it happens anyway...
return false;
} else {
LOG_L(L_WARNING, "Network error %i: %s", err.value(),
err.message().c_str());
return true;
}
}
asio::ip::udp::endpoint ResolveAddr(const std::string& host, int port, asio::error_code* err)
{
assert(err);
using namespace asio;
ip::address tempAddr = WrapIP(host, err);
if (!*err)
return ip::udp::endpoint(tempAddr, port);
auto errBuf = *err; // WrapResolve() might clear err
asio::io_service io_service;
ip::udp::resolver resolver(io_service);
ip::udp::resolver::query query(host, IntToString(port));
auto iter = WrapResolve(resolver, query, err);
ip::udp::resolver::iterator end;
if (!*err && iter != end) {
return *iter;
}
if (!*err) *err = errBuf;
return ip::udp::endpoint(tempAddr, 0);
}
asio::ip::address WrapIP(const std::string& ip,
asio::error_code* err)
{
asio::ip::address addr;
if (err == NULL) {
addr = asio::ip::address::from_string(ip);
} else {
addr = asio::ip::address::from_string(ip, *err);
}
// (date of note: 08/05/10)
// something in from_string() is invalidating the FPU flags
// tested on win2k and linux (not happening there)
streflop::streflop_init<streflop::Simple>();
return addr;
}
asio::ip::udp::resolver::iterator WrapResolve(
asio::ip::udp::resolver& resolver,
asio::ip::udp::resolver::query& query,
asio::error_code* err)
{
asio::ip::udp::resolver::iterator resolveIt;
if (err == NULL) {
resolveIt = resolver.resolve(query);
} else {
resolveIt = resolver.resolve(query, *err);
}
// (date of note: 08/22/10)
// something in resolve() is invalidating the FPU flags
streflop::streflop_init<streflop::Simple>();
return resolveIt;
}
asio::ip::address GetAnyAddress(const bool IPv6)
{
if (IPv6) {
return asio::ip::address_v6::any();
}
return asio::ip::address_v4::any();
}
} // namespace netcode