blob: 53fa594b72955c4242a55b5186179909171591a4 [file] [log] [blame]
// Copyright 2017 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "starboard/common/socket.h"
#include <sstream>
#include <string>
#include <winsock2.h>
#include "starboard/common/log.h"
#include "starboard/shared/win32/socket_internal.h"
namespace sbwin32 = starboard::shared::win32;
namespace {
std::string CreateErrorString(const SbSocketAddress* addr, int error) {
std::stringstream out;
if (addr) {
out << "Sendto failed while sending to port " << addr->port
<< ". Last Error: 0x" << std::hex << error;
} else {
out << "Sendto failed because of error: 0x" << std::hex << error;
}
return out.str();
}
} // namespace
int SbSocketSendTo(SbSocket socket,
const char* data,
int data_size,
const SbSocketAddress* destination) {
const int kSendFlags = 0;
if (!SbSocketIsValid(socket)) {
return -1;
}
SB_DCHECK(socket->socket_handle != INVALID_SOCKET);
if (socket->protocol == kSbSocketProtocolTcp) {
if (destination) {
SB_DLOG(FATAL) << "Destination passed to TCP send.";
socket->error = kSbSocketErrorFailed;
return -1;
}
int bytes_written =
send(socket->socket_handle, data, data_size, kSendFlags);
if (bytes_written >= 0) {
socket->error = kSbSocketOk;
return static_cast<int>(bytes_written);
}
int last_error = WSAGetLastError();
if ((last_error == WSAEWOULDBLOCK) || (last_error == WSAECONNABORTED)) {
socket->writable.store(false);
} else {
SB_DLOG(ERROR) << CreateErrorString(destination, last_error);
}
socket->error = sbwin32::TranslateSocketErrorStatus(last_error);
return -1;
} else if (socket->protocol == kSbSocketProtocolUdp) {
if (!destination) {
SB_DLOG(FATAL) << "No destination passed to UDP send.";
socket->error = kSbSocketErrorFailed;
return -1;
}
sbwin32::SockAddr sock_addr;
const sockaddr* sockaddr = nullptr;
socklen_t sockaddr_length = 0;
if (destination) {
if (!sock_addr.FromSbSocketAddress(destination)) {
SB_DLOG(FATAL) << "Invalid destination passed to UDP send.";
socket->error = kSbSocketErrorFailed;
return -1;
}
sockaddr = sock_addr.sockaddr();
sockaddr_length = sock_addr.length;
}
int bytes_written = sendto(socket->socket_handle, data, data_size,
kSendFlags, sockaddr, sockaddr_length);
if (bytes_written >= 0) {
socket->error = kSbSocketOk;
return static_cast<int>(bytes_written);
}
int last_error = WSAGetLastError();
if (last_error != WSAEWOULDBLOCK) {
SB_DLOG(ERROR) << CreateErrorString(destination, last_error);
}
socket->error = sbwin32::TranslateSocketErrorStatus(last_error);
return -1;
}
SB_NOTREACHED() << "Unrecognized protocol: " << socket->protocol;
return -1;
}