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      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_HOST_RESOLVER_RESOURCE_BASE_H_
      6 #define PPAPI_PROXY_HOST_RESOLVER_RESOURCE_BASE_H_
      7 
      8 #include <string>
      9 #include <vector>
     10 
     11 #include "base/basictypes.h"
     12 #include "base/compiler_specific.h"
     13 #include "base/memory/ref_counted.h"
     14 #include "ppapi/c/private/ppb_host_resolver_private.h"
     15 #include "ppapi/proxy/plugin_resource.h"
     16 #include "ppapi/proxy/ppapi_proxy_export.h"
     17 
     18 namespace ppapi {
     19 
     20 class TrackedCallback;
     21 
     22 struct HostPortPair {
     23   std::string host;
     24   uint16_t port;
     25 };
     26 
     27 namespace proxy {
     28 
     29 class NetAddressResource;
     30 
     31 class PPAPI_PROXY_EXPORT HostResolverResourceBase: public PluginResource {
     32  public:
     33   HostResolverResourceBase(Connection connection,
     34                            PP_Instance instance,
     35                            bool private_api);
     36   virtual ~HostResolverResourceBase();
     37 
     38   int32_t ResolveImpl(const char* host,
     39                       uint16_t port,
     40                       const PP_HostResolver_Private_Hint* hint,
     41                       scoped_refptr<TrackedCallback> callback);
     42   PP_Var GetCanonicalNameImpl();
     43   uint32_t GetSizeImpl();
     44   scoped_refptr<NetAddressResource> GetNetAddressImpl(uint32_t index);
     45 
     46  private:
     47   // IPC message handlers.
     48   void OnPluginMsgResolveReply(
     49       const ResourceMessageReplyParams& params,
     50       const std::string& canonical_name,
     51       const std::vector<PP_NetAddress_Private>& net_address_list);
     52 
     53   void SendResolve(const HostPortPair& host_port,
     54                    const PP_HostResolver_Private_Hint* hint);
     55 
     56   bool ResolveInProgress() const;
     57 
     58   bool private_api_;
     59 
     60   scoped_refptr<TrackedCallback> resolve_callback_;
     61 
     62   // Set to false if there is a pending resolve request or the previous request
     63   // failed.
     64   bool allow_get_results_;
     65   std::string canonical_name_;
     66   std::vector<scoped_refptr<NetAddressResource> > net_address_list_;
     67 
     68   DISALLOW_COPY_AND_ASSIGN(HostResolverResourceBase);
     69 };
     70 
     71 }  // namespace proxy
     72 }  // namespace ppapi
     73 
     74 #endif  // PPAPI_PROXY_HOST_RESOLVER_RESOURCE_BASE_H_
     75