TCPSockets are switched to the new Pepper proxy.

ppapi/proxy/tcp_socket_resource_base.cc

 // Copyright 2013 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/shared_impl/tcp_socket_shared.h"
+#include "ppapi/proxy/tcp_socket_resource_base.h"
 
-#include <string.h>
+#include <cstring>
 
-#include <algorithm>
-
-#include "base/basictypes.h"
 #include "base/bind.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/pp_utils.h"
+#include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/shared_impl/ppapi_globals.h"
 #include "ppapi/shared_impl/private/ppb_x509_certificate_private_shared.h"
 #include "ppapi/shared_impl/socket_option_data.h"
+#include "ppapi/shared_impl/var.h"
 #include "ppapi/shared_impl/var_tracker.h"
-#include "ppapi/shared_impl/var.h"
 #include "ppapi/thunk/enter.h"
 #include "ppapi/thunk/ppb_x509_certificate_private_api.h"
 
 namespace ppapi {
+namespace proxy {
 
-const int32_t TCPSocketShared::kMaxReadSize = 1024 * 1024;
-const int32_t TCPSocketShared::kMaxWriteSize = 1024 * 1024;
-const int32_t TCPSocketShared::kMaxSendBufferSize =
-    1024 * TCPSocketShared::kMaxWriteSize;
-const int32_t TCPSocketShared::kMaxReceiveBufferSize =
-    1024 * TCPSocketShared::kMaxReadSize;
+const int32_t TCPSocketResourceBase::kMaxReadSize = 1024 * 1024;
+const int32_t TCPSocketResourceBase::kMaxWriteSize = 1024 * 1024;
+const int32_t TCPSocketResourceBase::kMaxSendBufferSize =
+    1024 * TCPSocketResourceBase::kMaxWriteSize;
+const int32_t TCPSocketResourceBase::kMaxReceiveBufferSize =
+    1024 * TCPSocketResourceBase::kMaxReadSize;
 
-TCPSocketShared::TCPSocketShared(ResourceObjectType resource_type,
-                                 uint32 socket_id)
-    : resource_type_(resource_type) {
-  Init(socket_id);
+TCPSocketResourceBase::TCPSocketResourceBase(Connection connection,
+                                             PP_Instance instance,
+                                             bool private_api)
+    : PluginResource(connection, instance),
+      connection_state_(BEFORE_CONNECT),
+      read_buffer_(NULL),
+      bytes_to_read_(-1),
+      private_api_(private_api) {
+  local_addr_.size = 0;
+  memset(local_addr_.data, 0,
+         arraysize(local_addr_.data) * sizeof(*local_addr_.data));
+  remote_addr_.size = 0;
+  memset(remote_addr_.data, 0,
+         arraysize(remote_addr_.data) * sizeof(*remote_addr_.data));
 }
 
-TCPSocketShared::~TCPSocketShared() {
+TCPSocketResourceBase::TCPSocketResourceBase(
+    Connection connection,
+    PP_Instance instance,
+    bool private_api,
+    const PP_NetAddress_Private& local_addr,
+    const PP_NetAddress_Private& remote_addr)
+    : PluginResource(connection, instance),
+      connection_state_(CONNECTED),
+      read_buffer_(NULL),
+      bytes_to_read_(-1),
+      local_addr_(local_addr),
+      remote_addr_(remote_addr),
+      private_api_(private_api) {
 }
 
-void TCPSocketShared::OnConnectCompleted(
-    int32_t result,
-    const PP_NetAddress_Private& local_addr,
-    const PP_NetAddress_Private& remote_addr) {
-  // It is possible that |connect_callback_| is pending while
-  // |connection_state_| is not BEFORE_CONNECT: DisconnectImpl() has been
-  // called, but a ConnectCompleted notification came earlier than the task to
-  // abort |connect_callback_|. We don't want to update |connection_state_| or
-  // other members in that case.
-  if (connection_state_ != BEFORE_CONNECT ||
-      !TrackedCallback::IsPending(connect_callback_)) {
-    return;
-  }
-
-  result = OverridePPError(result);
-  if (result == PP_OK) {
-    local_addr_ = local_addr;
-    remote_addr_ = remote_addr;
-    connection_state_ = CONNECTED;
-  }
-  connect_callback_->Run(result);
+TCPSocketResourceBase::~TCPSocketResourceBase() {
 }
 
-void TCPSocketShared::OnSSLHandshakeCompleted(
-    bool succeeded,
-    const PPB_X509Certificate_Fields& certificate_fields) {
-  // It is possible that |ssl_handshake_callback_| is pending while
-  // |connection_state_| is not CONNECT: DisconnectImpl() has been
-  // called, but a SSLHandshakeCompleted notification came earlier than the task
-  // to abort |ssl_handshake_callback_|. We don't want to update
-  // |connection_state_| or other members in that case.
-  if (connection_state_ != CONNECTED ||
-      !TrackedCallback::IsPending(ssl_handshake_callback_)) {
-    return;
-  }
-
-  if (succeeded) {
-    connection_state_ = SSL_CONNECTED;
-    server_certificate_ = new PPB_X509Certificate_Private_Shared(
-        resource_type_,
-        GetOwnerResource()->pp_instance(),
-        certificate_fields);
-    ssl_handshake_callback_->Run(PP_OK);
-  } else {
-    // The resource might be released in the callback so we need to hold
-    // a reference so we can Disconnect() first.
-    GetOwnerResource()->AddRef();
-    ssl_handshake_callback_->Run(PP_ERROR_FAILED);
-    DisconnectImpl();
-    GetOwnerResource()->Release();
-  }
-}
-
-void TCPSocketShared::OnReadCompleted(int32_t result,
-                                      const std::string& data) {
-  // It is possible that |read_callback_| is pending while |read_buffer_| is
-  // NULL: DisconnectImpl() has been called, but a ReadCompleted notification
-  // came earlier than the task to abort |read_callback_|. We shouldn't access
-  // the buffer in that case. The user may have released it.
-  if (!TrackedCallback::IsPending(read_callback_) || !read_buffer_)
-    return;
-
-  result = OverridePPError(result);
-  bool succeeded = result == PP_OK;
-  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;
-
-  read_callback_->Run(
-      succeeded ? static_cast<int32_t>(data.size()) : result);
-}
-
-void TCPSocketShared::OnWriteCompleted(int32_t result) {
-  if (!TrackedCallback::IsPending(write_callback_))
-    return;
-
-  result = OverridePPError(result);
-  write_callback_->Run(result);
-}
-
-void TCPSocketShared::OnSetOptionCompleted(int32_t result) {
-  if (set_option_callbacks_.empty()) {
-    NOTREACHED();
-    return;
-  }
-
-  result = OverridePPError(result);
-  scoped_refptr<TrackedCallback> callback = set_option_callbacks_.front();
-  set_option_callbacks_.pop();
-
-  if (TrackedCallback::IsPending(callback))
-    callback->Run(result);
-}
-
-int32_t TCPSocketShared::OverridePPError(int32_t pp_error) {
-  return pp_error;
-}
-
-int32_t TCPSocketShared::ConnectImpl(const char* host,
-                                     uint16_t port,
-                                     scoped_refptr<TrackedCallback> callback) {
+int32_t TCPSocketResourceBase::ConnectImpl(
+    const char* host,
+    uint16_t port,
+    scoped_refptr<TrackedCallback> callback) {
   if (!host)
     return PP_ERROR_BADARGUMENT;
   if (connection_state_ != BEFORE_CONNECT)
     return PP_ERROR_FAILED;
   if (TrackedCallback::IsPending(connect_callback_))
     return PP_ERROR_INPROGRESS;  // Can only have one pending request.
 
   connect_callback_ = callback;
-  // Send the request, the browser will call us back via ConnectACK.
-  SendConnect(host, port);
+
+  Call<PpapiPluginMsg_TCPSocket_ConnectReply>(
+      BROWSER,
+      PpapiHostMsg_TCPSocket_Connect(host, port),
+      base::Bind(&TCPSocketResourceBase::OnPluginMsgConnectReply,
+                 base::Unretained(this)));
   return PP_OK_COMPLETIONPENDING;
 }
 
-int32_t TCPSocketShared::ConnectWithNetAddressImpl(
+int32_t TCPSocketResourceBase::ConnectWithNetAddressImpl(
     const PP_NetAddress_Private* addr,
     scoped_refptr<TrackedCallback> callback) {
   if (!addr)
     return PP_ERROR_BADARGUMENT;
   if (connection_state_ != BEFORE_CONNECT)
     return PP_ERROR_FAILED;
   if (TrackedCallback::IsPending(connect_callback_))
     return PP_ERROR_INPROGRESS;  // Can only have one pending request.
 
   connect_callback_ = callback;
-  // Send the request, the browser will call us back via ConnectACK.
-  SendConnectWithNetAddress(*addr);
+
+  Call<PpapiPluginMsg_TCPSocket_ConnectReply>(
+      BROWSER,
+      PpapiHostMsg_TCPSocket_ConnectWithNetAddress(*addr),
+      base::Bind(&TCPSocketResourceBase::OnPluginMsgConnectReply,
+                 base::Unretained(this)));
   return PP_OK_COMPLETIONPENDING;
 }
 
-PP_Bool TCPSocketShared::GetLocalAddressImpl(
+PP_Bool TCPSocketResourceBase::GetLocalAddressImpl(
     PP_NetAddress_Private* local_addr) {
   if (!IsConnected() || !local_addr)
     return PP_FALSE;
-
   *local_addr = local_addr_;
   return PP_TRUE;
 }
 
-PP_Bool TCPSocketShared::GetRemoteAddressImpl(
+PP_Bool TCPSocketResourceBase::GetRemoteAddressImpl(
     PP_NetAddress_Private* remote_addr) {
   if (!IsConnected() || !remote_addr)
     return PP_FALSE;
-
   *remote_addr = remote_addr_;
   return PP_TRUE;
 }
 
-int32_t TCPSocketShared::SSLHandshakeImpl(
+int32_t TCPSocketResourceBase::SSLHandshakeImpl(
     const char* server_name,
     uint16_t server_port,
     scoped_refptr<TrackedCallback> callback) {
   if (!server_name)
     return PP_ERROR_BADARGUMENT;
 
   if (connection_state_ != CONNECTED)
     return PP_ERROR_FAILED;
   if (TrackedCallback::IsPending(ssl_handshake_callback_) ||
       TrackedCallback::IsPending(read_callback_) ||
-      TrackedCallback::IsPending(write_callback_))
+      TrackedCallback::IsPending(write_callback_)) {
     return PP_ERROR_INPROGRESS;
+  }
 
   ssl_handshake_callback_ = callback;
 
-  // Send the request, the browser will call us back via SSLHandshakeACK.
-  SendSSLHandshake(server_name, server_port, trusted_certificates_,
-      untrusted_certificates_);
+  Call<PpapiPluginMsg_TCPSocket_SSLHandshakeReply>(
+      BROWSER,
+      PpapiHostMsg_TCPSocket_SSLHandshake(server_name,
+                                          server_port,
+                                          trusted_certificates_,
+                                          untrusted_certificates_),
+      base::Bind(&TCPSocketResourceBase::OnPluginMsgSSLHandshakeReply,
+                 base::Unretained(this)));
   return PP_OK_COMPLETIONPENDING;
 }
 
-PP_Resource TCPSocketShared::GetServerCertificateImpl() {
+PP_Resource TCPSocketResourceBase::GetServerCertificateImpl() {
   if (!server_certificate_.get())
     return 0;
   return server_certificate_->GetReference();
 }
 
-PP_Bool TCPSocketShared::AddChainBuildingCertificateImpl(
+PP_Bool TCPSocketResourceBase::AddChainBuildingCertificateImpl(
     PP_Resource certificate,
     PP_Bool trusted) {
   // TODO(raymes): The plumbing for this functionality is implemented but the
   // certificates aren't yet used for the connection, so just return false for
   // now.
   return PP_FALSE;
 
   thunk::EnterResourceNoLock<thunk::PPB_X509Certificate_Private_API>
   enter_cert(certificate, true);
   if (enter_cert.failed())
@@ skipping 10 matching lines @@
     if (PP_ToBool(trusted))
       trusted_certificates_.push_back(der);
     else
       untrusted_certificates_.push_back(der);
     success = PP_TRUE;
   }
   PpapiGlobals::Get()->GetVarTracker()->ReleaseVar(der_var);
   return success;
 }
 
-int32_t TCPSocketShared::ReadImpl(char* buffer,
-                                  int32_t bytes_to_read,
-                                  scoped_refptr<TrackedCallback> callback) {
+int32_t TCPSocketResourceBase::ReadImpl(
+    char* buffer,
+    int32_t bytes_to_read,
+    scoped_refptr<TrackedCallback> callback) {
   if (!buffer || bytes_to_read <= 0)
     return PP_ERROR_BADARGUMENT;
 
   if (!IsConnected())
     return PP_ERROR_FAILED;
   if (TrackedCallback::IsPending(read_callback_) ||
       TrackedCallback::IsPending(ssl_handshake_callback_))
     return PP_ERROR_INPROGRESS;
   read_buffer_ = buffer;
   bytes_to_read_ = std::min(bytes_to_read, kMaxReadSize);
   read_callback_ = callback;
 
-  // Send the request, the browser will call us back via ReadACK.
-  SendRead(bytes_to_read_);
+  Call<PpapiPluginMsg_TCPSocket_ReadReply>(
+      BROWSER,
+      PpapiHostMsg_TCPSocket_Read(bytes_to_read_),
+      base::Bind(&TCPSocketResourceBase::OnPluginMsgReadReply,
+                 base::Unretained(this)));
   return PP_OK_COMPLETIONPENDING;
 }
 
-int32_t TCPSocketShared::WriteImpl(const char* buffer,
-                                   int32_t bytes_to_write,
-                                   scoped_refptr<TrackedCallback> callback) {
+int32_t TCPSocketResourceBase::WriteImpl(
+    const char* buffer,
+    int32_t bytes_to_write,
+    scoped_refptr<TrackedCallback> callback) {
   if (!buffer || bytes_to_write <= 0)
     return PP_ERROR_BADARGUMENT;
 
   if (!IsConnected())
     return PP_ERROR_FAILED;
   if (TrackedCallback::IsPending(write_callback_) ||
       TrackedCallback::IsPending(ssl_handshake_callback_))
     return PP_ERROR_INPROGRESS;
 
   if (bytes_to_write > kMaxWriteSize)
     bytes_to_write = kMaxWriteSize;
 
   write_callback_ = callback;
 
-  // Send the request, the browser will call us back via WriteACK.
-  SendWrite(std::string(buffer, bytes_to_write));
+  Call<PpapiPluginMsg_TCPSocket_WriteReply>(
+      BROWSER,
+      PpapiHostMsg_TCPSocket_Write(std::string(buffer, bytes_to_write)),
+      base::Bind(&TCPSocketResourceBase::OnPluginMsgWriteReply,
+                 base::Unretained(this)));
   return PP_OK_COMPLETIONPENDING;
 }
 
-void TCPSocketShared::DisconnectImpl() {
+void TCPSocketResourceBase::DisconnectImpl() {
   if (connection_state_ == DISCONNECTED)
     return;
 
   connection_state_ = DISCONNECTED;
 
-  SendDisconnect();
-  socket_id_ = 0;
+  Post(BROWSER, PpapiHostMsg_TCPSocket_Disconnect());
 
   PostAbortIfNecessary(&connect_callback_);
   PostAbortIfNecessary(&ssl_handshake_callback_);
   PostAbortIfNecessary(&read_callback_);
   PostAbortIfNecessary(&write_callback_);
   read_buffer_ = NULL;
   bytes_to_read_ = -1;
   server_certificate_ = NULL;
 }
 
-int32_t TCPSocketShared::SetOptionImpl(
+int32_t TCPSocketResourceBase::SetOptionImpl(
     PP_TCPSocket_Option name,
     const PP_Var& value,
     scoped_refptr<TrackedCallback> callback) {
   if (!IsConnected())
     return PP_ERROR_FAILED;
 
   SocketOptionData option_data;
   switch (name) {
     case PP_TCPSOCKET_OPTION_NO_DELAY: {
       if (value.type != PP_VARTYPE_BOOL)
         return PP_ERROR_BADARGUMENT;
       option_data.SetBool(PP_ToBool(value.value.as_bool));
       break;
     }
     case PP_TCPSOCKET_OPTION_SEND_BUFFER_SIZE:
     case PP_TCPSOCKET_OPTION_RECV_BUFFER_SIZE: {
       if (value.type != PP_VARTYPE_INT32)
         return PP_ERROR_BADARGUMENT;
       option_data.SetInt32(value.value.as_int);
       break;
     }
     default: {
       NOTREACHED();
       return PP_ERROR_BADARGUMENT;
     }
   }
 
   set_option_callbacks_.push(callback);
-  SendSetOption(name, option_data);
+
+  Call<PpapiPluginMsg_TCPSocket_SetOptionReply>(
+      BROWSER,
+      PpapiHostMsg_TCPSocket_SetOption(name, option_data),
+      base::Bind(&TCPSocketResourceBase::OnPluginMsgSetOptionReply,
+                 base::Unretained(this)));
   return PP_OK_COMPLETIONPENDING;
 }
 
-void TCPSocketShared::Init(uint32 socket_id) {
-  DCHECK(socket_id != 0);
-  socket_id_ = socket_id;
-  connection_state_ = BEFORE_CONNECT;
-  read_buffer_ = NULL;
-  bytes_to_read_ = -1;
-
-  local_addr_.size = 0;
-  memset(local_addr_.data, 0,
-         arraysize(local_addr_.data) * sizeof(*local_addr_.data));
-  remote_addr_.size = 0;
-  memset(remote_addr_.data, 0,
-         arraysize(remote_addr_.data) * sizeof(*remote_addr_.data));
-}
-
-bool TCPSocketShared::IsConnected() const {
+bool TCPSocketResourceBase::IsConnected() const {
   return connection_state_ == CONNECTED || connection_state_ == SSL_CONNECTED;
 }
 
-void TCPSocketShared::PostAbortIfNecessary(
+void TCPSocketResourceBase::PostAbortIfNecessary(
     scoped_refptr<TrackedCallback>* callback) {
   if (TrackedCallback::IsPending(*callback))
     (*callback)->PostAbort();
 }
 
+void TCPSocketResourceBase::OnPluginMsgConnectReply(
+    const ResourceMessageReplyParams& params,
+    const PP_NetAddress_Private& local_addr,
+    const PP_NetAddress_Private& remote_addr) {
+  // It is possible that |connect_callback_| is pending while
+  // |connection_state_| is not BEFORE_CONNECT: DisconnectImpl() has been
+  // called, but a ConnectCompleted notification came earlier than the task to
+  // abort |connect_callback_|. We don't want to update |connection_state_| or
+  // other members in that case.
+  if (connection_state_ != BEFORE_CONNECT ||
+      !TrackedCallback::IsPending(connect_callback_)) {
+    return;
+  }
+
+  if (params.result() == PP_OK) {
+    local_addr_ = local_addr;
+    remote_addr_ = remote_addr;
+    connection_state_ = CONNECTED;
+  }
+  RunCallback(connect_callback_, params.result());
+}
+
+void TCPSocketResourceBase::OnPluginMsgSSLHandshakeReply(
+      const ResourceMessageReplyParams& params,
+      const PPB_X509Certificate_Fields& certificate_fields) {
+  // It is possible that |ssl_handshake_callback_| is pending while
+  // |connection_state_| is not CONNECT: DisconnectImpl() has been
+  // called, but a SSLHandshakeCompleted notification came earlier than the task
+  // to abort |ssl_handshake_callback_|. We don't want to update
+  // |connection_state_| or other members in that case.
+  if (connection_state_ != CONNECTED ||
+      !TrackedCallback::IsPending(ssl_handshake_callback_)) {
+    return;
+  }
+
+  if (params.result() == PP_OK) {
+    connection_state_ = SSL_CONNECTED;
+    server_certificate_ = new PPB_X509Certificate_Private_Shared(
+        OBJECT_IS_PROXY,
+        pp_instance(),
+        certificate_fields);
+    RunCallback(ssl_handshake_callback_, params.result());
+  } else {
+    // The resource might be released in the callback so we need to hold
+    // a reference so we can Disconnect() first.
+    AddRef();
+    RunCallback(ssl_handshake_callback_, params.result());
+    DisconnectImpl();
+    Release();
+  }
+}
+
+void TCPSocketResourceBase::OnPluginMsgReadReply(
+    const ResourceMessageReplyParams& params,
+    const std::string& data) {
+  // It is possible that |read_callback_| is pending while |read_buffer_| is
+  // NULL: DisconnectImpl() has been called, but a ReadCompleted notification
+  // came earlier than the task to abort |read_callback_|. We shouldn't access
+  // the buffer in that case. The user may have released it.
+  if (!TrackedCallback::IsPending(read_callback_) || !read_buffer_)
+    return;
+
+  const bool succeeded = params.result() == PP_OK;
+  if (succeeded) {
+    CHECK_LE(static_cast<int32_t>(data.size()), bytes_to_read_);
+    if (!data.empty())
+      memmove(read_buffer_, data.c_str(), data.size());
+  }
+  read_buffer_ = NULL;
+  bytes_to_read_ = -1;
+
+  read_callback_->Run(succeeded
+                      ? static_cast<int32_t>(data.size())

[yzshen1, 2013/08/19 19:07:07]

? and : should be on the previous line.

[ygorshenin1, 2013/08/20 13:00:49]

I've used
https://code.google.com/p/chromium/codesearch#chromium/src/v8/src/ast.cc&q=fi...
as an example.
Done.

On 2013/08/19 19:07:07, yzshen1 wrote:

[yzshen1, 2013/08/20 22:39:58]

Okay.

I think that is not mandatory. :)
On 2013/08/20 13:00:49, ygorshenin1 wrote:

+                      : ConvertPPError(params.result(), private_api_));
+}
+
+void TCPSocketResourceBase::OnPluginMsgWriteReply(
+    const ResourceMessageReplyParams& params) {
+  if (!TrackedCallback::IsPending(write_callback_))
+    return;
+  RunCallback(write_callback_, params.result());
+}
+
+void TCPSocketResourceBase::OnPluginMsgSetOptionReply(
+    const ResourceMessageReplyParams& params) {
+  if (set_option_callbacks_.empty()) {
+    NOTREACHED();
+    return;
+  }
+  scoped_refptr<TrackedCallback> callback = set_option_callbacks_.front();
+  set_option_callbacks_.pop();
+  if (TrackedCallback::IsPending(callback))
+    RunCallback(callback, params.result());
+}
+
+void TCPSocketResourceBase::RunCallback(scoped_refptr<TrackedCallback> callback,
+                                        int32_t pp_result) {
+  callback->Run(ConvertPPError(pp_result, private_api_));
+}
+
 }  // namespace ppapi
+}  // namespace proxy