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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/renderer_host/pepper_udp_socket.h"
#include <string.h>
#include "base/compiler_specific.h"
#include "base/logging.h"
#include "content/browser/renderer_host/pepper_message_filter.h"
#include "content/public/browser/browser_thread.h"
#include "net/base/io_buffer.h"
#include "net/base/net_errors.h"
#include "net/udp/udp_server_socket.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "ppapi/shared_impl/private/net_address_private_impl.h"
using content::BrowserThread;
using ppapi::NetAddressPrivateImpl;
PepperUDPSocket::PepperUDPSocket(
PepperMessageFilter* manager,
int32 routing_id,
uint32 plugin_dispatcher_id,
uint32 socket_id)
: manager_(manager),
routing_id_(routing_id),
plugin_dispatcher_id_(plugin_dispatcher_id),
socket_id_(socket_id),
ALLOW_THIS_IN_INITIALIZER_LIST(
recvfrom_callback_(this, &PepperUDPSocket::OnRecvFromCompleted)),
ALLOW_THIS_IN_INITIALIZER_LIST(
sendto_callback_(this, &PepperUDPSocket::OnSendToCompleted)) {
DCHECK(manager);
}
PepperUDPSocket::~PepperUDPSocket() {
// Make sure there are no further callbacks from socket_.
if (socket_.get())
socket_->Close();
}
void PepperUDPSocket::Bind(const PP_NetAddress_Private& addr) {
socket_.reset(new net::UDPServerSocket(NULL, net::NetLog::Source()));
net::IPEndPoint address;
if (!socket_.get() ||
!NetAddressPrivateImpl::NetAddressToIPEndPoint(addr, &address)) {
SendBindACK(false);
return;
}
int result = socket_->Listen(address);
SendBindACK(result == net::OK);
}
void PepperUDPSocket::RecvFrom(int32_t num_bytes) {
if (recvfrom_buffer_.get()) {
SendRecvFromACKError();
return;
}
recvfrom_buffer_ = new net::IOBuffer(num_bytes);
int result = socket_->RecvFrom(recvfrom_buffer_,
num_bytes,
&recvfrom_address_,
&recvfrom_callback_);
if (result != net::ERR_IO_PENDING)
OnRecvFromCompleted(result);
}
void PepperUDPSocket::SendTo(const std::string& data,
const PP_NetAddress_Private& addr) {
if (sendto_buffer_.get() || data.empty()) {
SendSendToACKError();
return;
}
net::IPEndPoint address;
if (!NetAddressPrivateImpl::NetAddressToIPEndPoint(addr, &address)) {
SendSendToACKError();
return;
}
int data_size = data.size();
sendto_buffer_ = new net::IOBuffer(data_size);
memcpy(sendto_buffer_->data(), data.data(), data_size);
int result = socket_->SendTo(sendto_buffer_,
data_size,
address,
&sendto_callback_);
if (result != net::ERR_IO_PENDING)
OnSendToCompleted(result);
}
void PepperUDPSocket::SendRecvFromACKError() {
PP_NetAddress_Private addr = NetAddressPrivateImpl::kInvalidNetAddress;
manager_->Send(new PpapiMsg_PPBUDPSocket_RecvFromACK(
routing_id_, plugin_dispatcher_id_, socket_id_, false, std::string(),
addr));
}
void PepperUDPSocket::SendSendToACKError() {
manager_->Send(new PpapiMsg_PPBUDPSocket_SendToACK(
routing_id_, plugin_dispatcher_id_, socket_id_, false, 0));
}
void PepperUDPSocket::SendBindACK(bool result) {
manager_->Send(new PpapiMsg_PPBUDPSocket_BindACK(
routing_id_, plugin_dispatcher_id_, socket_id_, result));
}
void PepperUDPSocket::OnRecvFromCompleted(int result) {
DCHECK(recvfrom_buffer_.get());
// Convert IPEndPoint we get back from RecvFrom to a PP_NetAddress_Private,
// to send back.
PP_NetAddress_Private addr = NetAddressPrivateImpl::kInvalidNetAddress;
if (result < 0 ||
!NetAddressPrivateImpl::IPEndPointToNetAddress(recvfrom_address_,
&addr)) {
SendRecvFromACKError();
} else {
manager_->Send(new PpapiMsg_PPBUDPSocket_RecvFromACK(
routing_id_, plugin_dispatcher_id_, socket_id_, true,
std::string(recvfrom_buffer_->data(), result), addr));
}
recvfrom_buffer_ = NULL;
}
void PepperUDPSocket::OnSendToCompleted(int result) {
DCHECK(sendto_buffer_.get());
manager_->Send(new PpapiMsg_PPBUDPSocket_SendToACK(
routing_id_, plugin_dispatcher_id_, socket_id_, true, result));
sendto_buffer_ = NULL;
}
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