1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
// 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.
#ifndef PPAPI_PROXY_UDP_SOCKET_RESOURCE_BASE_H_
#define PPAPI_PROXY_UDP_SOCKET_RESOURCE_BASE_H_
#include <queue>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/ref_counted.h"
#include "ppapi/c/ppb_udp_socket.h"
#include "ppapi/c/private/ppb_net_address_private.h"
#include "ppapi/proxy/plugin_resource.h"
#include "ppapi/proxy/ppapi_proxy_export.h"
#include "ppapi/proxy/udp_socket_filter.h"
#include "ppapi/shared_impl/tracked_callback.h"
namespace ppapi {
namespace proxy {
class ResourceMessageReplyParams;
class PPAPI_PROXY_EXPORT UDPSocketResourceBase : public PluginResource {
public:
// The maximum number of bytes that each
// PpapiPluginMsg_PPBUDPSocket_PushRecvResult message is allowed to carry.
static const int32_t kMaxReadSize;
// The maximum number of bytes that each PpapiHostMsg_PPBUDPSocket_SendTo
// message is allowed to carry.
static const int32_t kMaxWriteSize;
// The maximum number that we allow for setting
// PP_UDPSOCKET_OPTION_SEND_BUFFER_SIZE. This number is only for input
// argument sanity check, it doesn't mean the browser guarantees to support
// such a buffer size.
static const int32_t kMaxSendBufferSize;
// The maximum number that we allow for setting
// PP_UDPSOCKET_OPTION_RECV_BUFFER_SIZE. This number is only for input
// argument sanity check, it doesn't mean the browser guarantees to support
// such a buffer size.
static const int32_t kMaxReceiveBufferSize;
// The maximum number of received packets that we allow instances of this
// class to buffer.
static const size_t kPluginReceiveBufferSlots;
// The maximum number of buffers that we allow instances of this class to be
// sending before we block the plugin.
static const size_t kPluginSendBufferSlots;
protected:
UDPSocketResourceBase(Connection connection,
PP_Instance instance,
bool private_api);
virtual ~UDPSocketResourceBase();
int32_t SetOptionImpl(PP_UDPSocket_Option name,
const PP_Var& value,
bool check_bind_state,
scoped_refptr<TrackedCallback> callback);
int32_t BindImpl(const PP_NetAddress_Private* addr,
scoped_refptr<TrackedCallback> callback);
PP_Bool GetBoundAddressImpl(PP_NetAddress_Private* addr);
// |addr| could be NULL to indicate that an output value is not needed.
int32_t RecvFromImpl(char* buffer,
int32_t num_bytes,
PP_Resource* addr,
scoped_refptr<TrackedCallback> callback);
PP_Bool GetRecvFromAddressImpl(PP_NetAddress_Private* addr);
int32_t SendToImpl(const char* buffer,
int32_t num_bytes,
const PP_NetAddress_Private* addr,
scoped_refptr<TrackedCallback> callback);
void CloseImpl();
int32_t JoinGroupImpl(const PP_NetAddress_Private *group,
scoped_refptr<TrackedCallback> callback);
int32_t LeaveGroupImpl(const PP_NetAddress_Private *group,
scoped_refptr<TrackedCallback> callback);
private:
// IPC message handlers.
void OnPluginMsgGeneralReply(scoped_refptr<TrackedCallback> callback,
const ResourceMessageReplyParams& params);
void OnPluginMsgBindReply(const ResourceMessageReplyParams& params,
const PP_NetAddress_Private& bound_addr);
void OnPluginMsgSendToReply(const ResourceMessageReplyParams& params,
int32_t bytes_written);
static void SlotBecameAvailable(PP_Resource resource);
static void SlotBecameAvailableWithLock(PP_Resource resource);
bool private_api_;
// |bind_called_| is true after Bind() is called, while |bound_| is true
// after Bind() succeeds. Bind() is an asynchronous method, so the timing
// on which of these is set is slightly different.
bool bind_called_;
bool bound_;
bool closed_;
scoped_refptr<TrackedCallback> bind_callback_;
scoped_refptr<UDPSocketFilter> recv_filter_;
PP_NetAddress_Private bound_addr_;
std::queue<scoped_refptr<TrackedCallback>> sendto_callbacks_;
DISALLOW_COPY_AND_ASSIGN(UDPSocketResourceBase);
};
} // namespace proxy
} // namespace ppapi
#endif // PPAPI_PROXY_UDP_SOCKET_RESOURCE_BASE_H_
|
