ppapi/proxy/udp_socket_resource_base.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef PPAPI_PROXY_UDP_SOCKET_SHARED_H_
   6 #define PPAPI_PROXY_UDP_SOCKET_SHARED_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/compiler_specific.h"
  12 #include "base/memory/ref_counted.h"
  13 #include "ppapi/c/private/ppb_net_address_private.h"
  14 #include "ppapi/c/private/ppb_udp_socket_private.h"
  15 #include "ppapi/proxy/plugin_resource.h"
  16 #include "ppapi/proxy/ppapi_proxy_export.h"
  17 #include "ppapi/shared_impl/tracked_callback.h"
  18
  19 namespace ppapi {
  20 namespace proxy {
  21
  22 class ResourceMessageReplyParams;
  23
  24 class PPAPI_PROXY_EXPORT UDPSocketResourceBase: public PluginResource {
  25  public:
  26   // The maximum number of bytes that each PpapiHostMsg_PPBUDPSocket_RecvFrom
  27   // message is allowed to request.
  28   static const int32_t kMaxReadSize;
  29   // The maximum number of bytes that each PpapiHostMsg_PPBUDPSocket_SendTo
  30   // message is allowed to carry.
  31   static const int32_t kMaxWriteSize;
  32
  33  protected:
  34   UDPSocketResourceBase(Connection connection, PP_Instance instance);
  35   virtual ~UDPSocketResourceBase();
  36
  37   int32_t SetSocketFeatureImpl(PP_UDPSocketFeature_Private name,
  38                                const PP_Var& value);
  39   int32_t BindImpl(const PP_NetAddress_Private* addr,
  40                    scoped_refptr<TrackedCallback> callback);
  41   PP_Bool GetBoundAddressImpl(PP_NetAddress_Private* addr);
  42   // |addr| could be NULL to indicate that an output value is not needed.
  43   int32_t RecvFromImpl(char* buffer,
  44                        int32_t num_bytes,
  45                        PP_Resource* addr,
  46                        scoped_refptr<TrackedCallback> callback);
  47   PP_Bool GetRecvFromAddressImpl(PP_NetAddress_Private* addr);
  48   int32_t SendToImpl(const char* buffer,
  49                      int32_t num_bytes,
  50                      const PP_NetAddress_Private* addr,
  51                      scoped_refptr<TrackedCallback> callback);
  52   void CloseImpl();
  53
  54  private:
  55   void PostAbortIfNecessary(scoped_refptr<TrackedCallback>* callback);
  56
  57   // IPC message handlers.
  58   void OnPluginMsgBindReply(const ResourceMessageReplyParams& params,
  59                             const PP_NetAddress_Private& bound_addr);
  60   void OnPluginMsgRecvFromReply(PP_Resource* output_addr,
  61                                 const ResourceMessageReplyParams& params,
  62                                 const std::string& data,
  63                                 const PP_NetAddress_Private& addr);
  64   void OnPluginMsgSendToReply(const ResourceMessageReplyParams& params,
  65                               int32_t bytes_written);
  66
  67   bool bound_;
  68   bool closed_;
  69
  70   scoped_refptr<TrackedCallback> bind_callback_;
  71   scoped_refptr<TrackedCallback> recvfrom_callback_;
  72   scoped_refptr<TrackedCallback> sendto_callback_;
  73
  74   char* read_buffer_;
  75   int32_t bytes_to_read_;
  76
  77   PP_NetAddress_Private recvfrom_addr_;
  78   PP_NetAddress_Private bound_addr_;
  79
  80   DISALLOW_COPY_AND_ASSIGN(UDPSocketResourceBase);
  81 };
  82
  83 }  // namespace proxy
  84 }  // namespace ppapi
  85
  86 #endif  // PPAPI_PROXY_UDP_SOCKET_SHARED_H_