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// Copyright (c) 2012 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 "ppapi/proxy/udp_socket_private_resource.h"
#include <algorithm>
#include <cstring>
#include "base/basictypes.h"
#include "base/logging.h"
#include "ppapi/c/pp_bool.h"
#include "ppapi/c/pp_completion_callback.h"
#include "ppapi/c/pp_errors.h"
#include "ppapi/proxy/ppapi_messages.h"
namespace ppapi {
namespace proxy {
const int32_t UDPSocketPrivateResource::kMaxReadSize = 1024 * 1024;
const int32_t UDPSocketPrivateResource::kMaxWriteSize = 1024 * 1024;
UDPSocketPrivateResource::UDPSocketPrivateResource(Connection connection,
PP_Instance instance)
: PluginResource(connection, instance),
bound_(false),
closed_(false),
read_buffer_(NULL),
bytes_to_read_(-1) {
recvfrom_addr_.size = 0;
memset(recvfrom_addr_.data, 0,
arraysize(recvfrom_addr_.data) * sizeof(*recvfrom_addr_.data));
bound_addr_.size = 0;
memset(bound_addr_.data, 0,
arraysize(bound_addr_.data) * sizeof(*bound_addr_.data));
SendCreate(BROWSER, PpapiHostMsg_UDPSocketPrivate_Create());
}
UDPSocketPrivateResource::~UDPSocketPrivateResource() {
}
thunk::PPB_UDPSocket_Private_API*
UDPSocketPrivateResource::AsPPB_UDPSocket_Private_API() {
return this;
}
int32_t UDPSocketPrivateResource::SetSocketFeature(
PP_UDPSocketFeature_Private name,
PP_Var value) {
if (bound_ || closed_)
return PP_ERROR_FAILED;
switch (name) {
case PP_UDPSOCKETFEATURE_ADDRESS_REUSE:
case PP_UDPSOCKETFEATURE_BROADCAST:
if (value.type != PP_VARTYPE_BOOL)
return PP_ERROR_BADARGUMENT;
SendBoolSocketFeature(static_cast<int32_t>(name),
PP_ToBool(value.value.as_bool));
break;
default:
return PP_ERROR_BADARGUMENT;
}
return PP_OK;
}
int32_t UDPSocketPrivateResource::Bind(
const PP_NetAddress_Private* addr,
scoped_refptr<TrackedCallback> callback) {
if (!addr)
return PP_ERROR_BADARGUMENT;
if (bound_ || closed_)
return PP_ERROR_FAILED;
if (TrackedCallback::IsPending(bind_callback_))
return PP_ERROR_INPROGRESS;
bind_callback_ = callback;
// Send the request, the browser will call us back via BindACK.
SendBind(*addr);
return PP_OK_COMPLETIONPENDING;
}
PP_Bool UDPSocketPrivateResource::GetBoundAddress(PP_NetAddress_Private* addr) {
if (!addr || !bound_ || closed_)
return PP_FALSE;
*addr = bound_addr_;
return PP_TRUE;
}
int32_t UDPSocketPrivateResource::RecvFrom(
char* buffer,
int32_t num_bytes,
scoped_refptr<TrackedCallback> callback) {
if (!buffer || num_bytes <= 0)
return PP_ERROR_BADARGUMENT;
if (!bound_)
return PP_ERROR_FAILED;
if (TrackedCallback::IsPending(recvfrom_callback_))
return PP_ERROR_INPROGRESS;
read_buffer_ = buffer;
bytes_to_read_ = std::min(num_bytes, kMaxReadSize);
recvfrom_callback_ = callback;
// Send the request, the browser will call us back via RecvFromACK.
SendRecvFrom(bytes_to_read_);
return PP_OK_COMPLETIONPENDING;
}
PP_Bool UDPSocketPrivateResource::GetRecvFromAddress(
PP_NetAddress_Private* addr) {
if (!addr)
return PP_FALSE;
*addr = recvfrom_addr_;
return PP_TRUE;
}
void UDPSocketPrivateResource::PostAbortIfNecessary(
scoped_refptr<TrackedCallback>* callback) {
if (TrackedCallback::IsPending(*callback))
(*callback)->PostAbort();
}
int32_t UDPSocketPrivateResource::SendTo(
const char* buffer,
int32_t num_bytes,
const PP_NetAddress_Private* addr,
scoped_refptr<TrackedCallback> callback) {
if (!buffer || num_bytes <= 0 || !addr)
return PP_ERROR_BADARGUMENT;
if (!bound_)
return PP_ERROR_FAILED;
if (TrackedCallback::IsPending(sendto_callback_))
return PP_ERROR_INPROGRESS;
if (num_bytes > kMaxWriteSize)
num_bytes = kMaxWriteSize;
sendto_callback_ = callback;
// Send the request, the browser will call us back via SendToACK.
SendSendTo(std::string(buffer, num_bytes), *addr);
return PP_OK_COMPLETIONPENDING;
}
void UDPSocketPrivateResource::Close() {
if(closed_)
return;
bound_ = false;
closed_ = true;
SendClose();
PostAbortIfNecessary(&bind_callback_);
PostAbortIfNecessary(&recvfrom_callback_);
PostAbortIfNecessary(&sendto_callback_);
}
void UDPSocketPrivateResource::SendBoolSocketFeature(int32_t name, bool value) {
PpapiHostMsg_UDPSocketPrivate_SetBoolSocketFeature msg(name, value);
Post(BROWSER, msg);
}
void UDPSocketPrivateResource::SendBind(const PP_NetAddress_Private& addr) {
PpapiHostMsg_UDPSocketPrivate_Bind msg(addr);
Call<PpapiPluginMsg_UDPSocketPrivate_BindReply>(
BROWSER,
msg,
base::Bind(&UDPSocketPrivateResource::OnPluginMsgBindReply,
base::Unretained(this)));
}
void UDPSocketPrivateResource::SendRecvFrom(int32_t num_bytes) {
PpapiHostMsg_UDPSocketPrivate_RecvFrom msg(num_bytes);
Call<PpapiPluginMsg_UDPSocketPrivate_RecvFromReply>(
BROWSER,
msg,
base::Bind(&UDPSocketPrivateResource::OnPluginMsgRecvFromReply,
base::Unretained(this)));
}
void UDPSocketPrivateResource::SendSendTo(const std::string& buffer,
const PP_NetAddress_Private& addr) {
PpapiHostMsg_UDPSocketPrivate_SendTo msg(buffer, addr);
Call<PpapiPluginMsg_UDPSocketPrivate_SendToReply>(
BROWSER,
msg,
base::Bind(&UDPSocketPrivateResource::OnPluginMsgSendToReply,
base::Unretained(this)));
}
void UDPSocketPrivateResource::SendClose() {
PpapiHostMsg_UDPSocketPrivate_Close msg;
Post(BROWSER, msg);
}
void UDPSocketPrivateResource::OnPluginMsgBindReply(
const ResourceMessageReplyParams& params,
bool succeeded,
const PP_NetAddress_Private& bound_addr) {
if (!TrackedCallback::IsPending(bind_callback_)) {
NOTREACHED();
return;
}
if (succeeded)
bound_ = true;
bound_addr_ = bound_addr;
bind_callback_->Run(succeeded ? PP_OK : PP_ERROR_FAILED);
}
void UDPSocketPrivateResource::OnPluginMsgRecvFromReply(
const ResourceMessageReplyParams& params,
bool succeeded,
const std::string& data,
const PP_NetAddress_Private& addr) {
if (!TrackedCallback::IsPending(recvfrom_callback_) || !read_buffer_) {
NOTREACHED();
return;
}
if (succeeded) {
CHECK_LE(static_cast<int32_t>(data.size()), bytes_to_read_);
if (!data.empty())
memcpy(read_buffer_, data.c_str(), data.size());
}
read_buffer_ = NULL;
bytes_to_read_ = -1;
recvfrom_addr_ = addr;
recvfrom_callback_->Run(succeeded ? static_cast<int32_t>(data.size()) :
static_cast<int32_t>(PP_ERROR_FAILED));
}
void UDPSocketPrivateResource::OnPluginMsgSendToReply(
const ResourceMessageReplyParams& params,
bool succeeded,
int32_t bytes_written) {
if (!TrackedCallback::IsPending(sendto_callback_)) {
NOTREACHED();
return;
}
sendto_callback_->Run(
succeeded ? bytes_written : static_cast<int32_t>(PP_ERROR_FAILED));
}
} // namespace proxy
} // namespace ppapi
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