host_resolver_resource_base.h revision 7d4cd473f85ac64c3747c96c277f9e506a0d2246 
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
18namespace ppapi {
19
20class TrackedCallback;
21
22struct HostPortPair {
23  std::string host;
24  uint16_t port;
25};
26
27namespace proxy {
28
29class NetAddressResource;
30
31class PPAPI_PROXY_EXPORT HostResolverResourceBase: public PluginResource {
32 public:
33  HostResolverResourceBase(Connection connection, PP_Instance instance);
34  virtual ~HostResolverResourceBase();
35
36  int32_t ResolveImpl(const char* host,
37                      uint16_t port,
38                      const PP_HostResolver_Private_Hint* hint,
39                      scoped_refptr<TrackedCallback> callback);
40  PP_Var GetCanonicalNameImpl();
41  uint32_t GetSizeImpl();
42  scoped_refptr<NetAddressResource> GetNetAddressImpl(uint32_t index);
43
44 private:
45  // IPC message handlers.
46  void OnPluginMsgResolveReply(
47      const ResourceMessageReplyParams& params,
48      const std::string& canonical_name,
49      const std::vector<PP_NetAddress_Private>& net_address_list);
50
51  void SendResolve(const HostPortPair& host_port,
52                   const PP_HostResolver_Private_Hint* hint);
53
54  bool ResolveInProgress() const;
55
56  scoped_refptr<TrackedCallback> resolve_callback_;
57
58  // Set to false if there is a pending resolve request or the previous request
59  // failed.
60  bool allow_get_results_;
61  std::string canonical_name_;
62  std::vector<scoped_refptr<NetAddressResource> > net_address_list_;
63
64  DISALLOW_COPY_AND_ASSIGN(HostResolverResourceBase);
65};
66
67}  // namespace proxy
68}  // namespace ppapi
69
70#endif  // PPAPI_PROXY_HOST_RESOLVER_RESOURCE_BASE_H_
71