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1 // Copyright (c) 2012 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 #include "ppapi/shared_impl/private/udp_socket_private_impl.h" | |
6 | |
7 #include <string.h> | |
8 | |
9 #include <algorithm> | |
10 | |
11 #include "base/basictypes.h" | |
12 #include "base/bind.h" | |
13 #include "base/logging.h" | |
14 #include "base/message_loop.h" | |
15 #include "ppapi/c/pp_bool.h" | |
16 #include "ppapi/c/pp_completion_callback.h" | |
17 #include "ppapi/c/pp_errors.h" | |
18 | |
19 namespace ppapi { | |
20 | |
21 const int32_t UDPSocketPrivateImpl::kMaxReadSize = 1024 * 1024; | |
22 const int32_t UDPSocketPrivateImpl::kMaxWriteSize = 1024 * 1024; | |
23 | |
24 UDPSocketPrivateImpl::UDPSocketPrivateImpl(const HostResource& resource, | |
25 uint32 socket_id) | |
26 : Resource(OBJECT_IS_PROXY, resource) { | |
27 Init(socket_id); | |
28 } | |
29 | |
30 UDPSocketPrivateImpl::UDPSocketPrivateImpl(PP_Instance instance, | |
31 uint32 socket_id) | |
32 : Resource(OBJECT_IS_IMPL, instance) { | |
33 Init(socket_id); | |
34 } | |
35 | |
36 UDPSocketPrivateImpl::~UDPSocketPrivateImpl() { | |
37 } | |
38 | |
39 thunk::PPB_UDPSocket_Private_API* | |
40 UDPSocketPrivateImpl::AsPPB_UDPSocket_Private_API() { | |
41 return this; | |
42 } | |
43 | |
44 int32_t UDPSocketPrivateImpl::SetSocketFeature(PP_UDPSocketFeature_Private name, | |
45 PP_Var value) { | |
46 if (bound_ || closed_) | |
47 return PP_ERROR_FAILED; | |
48 | |
49 switch (name) { | |
50 case PP_UDPSOCKETFEATURE_ADDRESS_REUSE: | |
51 case PP_UDPSOCKETFEATURE_BROADCAST: | |
52 if (value.type != PP_VARTYPE_BOOL) | |
53 return PP_ERROR_BADARGUMENT; | |
54 SendBoolSocketFeature(static_cast<int32_t>(name), | |
55 PP_ToBool(value.value.as_bool)); | |
56 break; | |
57 default: | |
58 return PP_ERROR_BADARGUMENT; | |
59 } | |
60 return PP_OK; | |
61 } | |
62 | |
63 int32_t UDPSocketPrivateImpl::Bind(const PP_NetAddress_Private* addr, | |
64 scoped_refptr<TrackedCallback> callback) { | |
65 if (!addr) | |
66 return PP_ERROR_BADARGUMENT; | |
67 if (bound_ || closed_) | |
68 return PP_ERROR_FAILED; | |
69 if (TrackedCallback::IsPending(bind_callback_)) | |
70 return PP_ERROR_INPROGRESS; | |
71 | |
72 bind_callback_ = callback; | |
73 | |
74 // Send the request, the browser will call us back via BindACK. | |
75 SendBind(*addr); | |
76 return PP_OK_COMPLETIONPENDING; | |
77 } | |
78 | |
79 PP_Bool UDPSocketPrivateImpl::GetBoundAddress(PP_NetAddress_Private* addr) { | |
80 if (!addr || !bound_ || closed_) | |
81 return PP_FALSE; | |
82 | |
83 *addr = bound_addr_; | |
84 return PP_TRUE; | |
85 } | |
86 | |
87 int32_t UDPSocketPrivateImpl::RecvFrom( | |
88 char* buffer, | |
89 int32_t num_bytes, | |
90 scoped_refptr<TrackedCallback> callback) { | |
91 if (!buffer || num_bytes <= 0) | |
92 return PP_ERROR_BADARGUMENT; | |
93 if (!bound_) | |
94 return PP_ERROR_FAILED; | |
95 if (TrackedCallback::IsPending(recvfrom_callback_)) | |
96 return PP_ERROR_INPROGRESS; | |
97 | |
98 read_buffer_ = buffer; | |
99 bytes_to_read_ = std::min(num_bytes, kMaxReadSize); | |
100 recvfrom_callback_ = callback; | |
101 | |
102 // Send the request, the browser will call us back via RecvFromACK. | |
103 SendRecvFrom(bytes_to_read_); | |
104 return PP_OK_COMPLETIONPENDING; | |
105 } | |
106 | |
107 PP_Bool UDPSocketPrivateImpl::GetRecvFromAddress(PP_NetAddress_Private* addr) { | |
108 if (!addr) | |
109 return PP_FALSE; | |
110 | |
111 *addr = recvfrom_addr_; | |
112 return PP_TRUE; | |
113 } | |
114 | |
115 int32_t UDPSocketPrivateImpl::SendTo(const char* buffer, | |
116 int32_t num_bytes, | |
117 const PP_NetAddress_Private* addr, | |
118 scoped_refptr<TrackedCallback> callback) { | |
119 if (!buffer || num_bytes <= 0 || !addr) | |
120 return PP_ERROR_BADARGUMENT; | |
121 if (!bound_) | |
122 return PP_ERROR_FAILED; | |
123 if (TrackedCallback::IsPending(sendto_callback_)) | |
124 return PP_ERROR_INPROGRESS; | |
125 | |
126 if (num_bytes > kMaxWriteSize) | |
127 num_bytes = kMaxWriteSize; | |
128 | |
129 sendto_callback_ = callback; | |
130 | |
131 // Send the request, the browser will call us back via SendToACK. | |
132 SendSendTo(std::string(buffer, num_bytes), *addr); | |
133 return PP_OK_COMPLETIONPENDING; | |
134 } | |
135 | |
136 void UDPSocketPrivateImpl::Close() { | |
137 if(closed_) | |
138 return; | |
139 | |
140 bound_ = false; | |
141 closed_ = true; | |
142 | |
143 SendClose(); | |
144 | |
145 socket_id_ = 0; | |
146 | |
147 PostAbortIfNecessary(&bind_callback_); | |
148 PostAbortIfNecessary(&recvfrom_callback_); | |
149 PostAbortIfNecessary(&sendto_callback_); | |
150 } | |
151 | |
152 void UDPSocketPrivateImpl::OnBindCompleted( | |
153 bool succeeded, | |
154 const PP_NetAddress_Private& addr) { | |
155 if (!TrackedCallback::IsPending(bind_callback_)) { | |
156 NOTREACHED(); | |
157 return; | |
158 } | |
159 | |
160 if (succeeded) | |
161 bound_ = true; | |
162 | |
163 bound_addr_ = addr; | |
164 | |
165 bind_callback_->Run(succeeded ? PP_OK : PP_ERROR_FAILED); | |
166 } | |
167 | |
168 void UDPSocketPrivateImpl::OnRecvFromCompleted( | |
169 bool succeeded, | |
170 const std::string& data, | |
171 const PP_NetAddress_Private& addr) { | |
172 if (!TrackedCallback::IsPending(recvfrom_callback_) || !read_buffer_) { | |
173 NOTREACHED(); | |
174 return; | |
175 } | |
176 | |
177 if (succeeded) { | |
178 CHECK_LE(static_cast<int32_t>(data.size()), bytes_to_read_); | |
179 if (!data.empty()) | |
180 memcpy(read_buffer_, data.c_str(), data.size()); | |
181 } | |
182 read_buffer_ = NULL; | |
183 bytes_to_read_ = -1; | |
184 recvfrom_addr_ = addr; | |
185 | |
186 recvfrom_callback_->Run(succeeded ? static_cast<int32_t>(data.size()) : | |
187 static_cast<int32_t>(PP_ERROR_FAILED)); | |
188 } | |
189 | |
190 void UDPSocketPrivateImpl::OnSendToCompleted(bool succeeded, | |
191 int32_t bytes_written) { | |
192 if (!TrackedCallback::IsPending(sendto_callback_)) { | |
193 NOTREACHED(); | |
194 return; | |
195 } | |
196 | |
197 sendto_callback_->Run( | |
198 succeeded ? bytes_written : static_cast<int32_t>(PP_ERROR_FAILED)); | |
199 } | |
200 | |
201 void UDPSocketPrivateImpl::Init(uint32 socket_id) { | |
202 DCHECK(socket_id != 0); | |
203 socket_id_ = socket_id; | |
204 bound_ = false; | |
205 closed_ = false; | |
206 read_buffer_ = NULL; | |
207 bytes_to_read_ = -1; | |
208 | |
209 recvfrom_addr_.size = 0; | |
210 memset(recvfrom_addr_.data, 0, | |
211 arraysize(recvfrom_addr_.data) * sizeof(*recvfrom_addr_.data)); | |
212 bound_addr_.size = 0; | |
213 memset(bound_addr_.data, 0, | |
214 arraysize(bound_addr_.data) * sizeof(*bound_addr_.data)); | |
215 } | |
216 | |
217 void UDPSocketPrivateImpl::PostAbortIfNecessary( | |
218 scoped_refptr<TrackedCallback>* callback) { | |
219 if (TrackedCallback::IsPending(*callback)) | |
220 (*callback)->PostAbort(); | |
221 } | |
222 | |
223 } // namespace ppapi | |
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