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
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
/*
* Copyright (c) 2013, Ford Motor Company
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of the Ford Motor Company nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "transport_manager/transport_adapter/threaded_socket_connection.h"
#include "transport_manager/transport_adapter/transport_adapter_controller.h"
#include "utils/logger.h"
#include "utils/threads/thread.h"
CREATE_LOGGERPTR_GLOBAL(logger_, "TransportManager")
namespace transport_manager {
namespace transport_adapter {
////////////////////////////////////////////////////////////////////////////////
/// SocketConnectionDelegate:
////////////////////////////////////////////////////////////////////////////////
ThreadedSocketConnection::ThreadedSocketConnection(
const DeviceUID& device_id,
const ApplicationHandle& app_handle,
TransportAdapterController* controller)
: controller_(controller)
, frames_to_send_()
, frames_to_send_mutex_()
, socket_connection_()
, terminate_flag_(false)
, unexpected_disconnect_(false)
, device_uid_(device_id)
, app_handle_(app_handle)
, thread_(NULL) {
const std::string thread_name = std::string("Socket ") + device_handle();
thread_ = threads::CreateThread(thread_name.c_str(),
new SocketConnectionDelegate(this));
}
ThreadedSocketConnection::~ThreadedSocketConnection() {
LOGGER_AUTO_TRACE(logger_);
Disconnect();
thread_->join();
delete thread_->delegate();
threads::DeleteThread(thread_);
}
void ThreadedSocketConnection::Abort() {
LOGGER_AUTO_TRACE(logger_);
unexpected_disconnect_ = true;
terminate_flag_ = true;
}
void ThreadedSocketConnection::SetSocket(
utils::TcpSocketConnection& socket_connection) {
socket_connection_ = socket_connection;
socket_connection_.SetEventHandler(this);
}
TransportAdapter::Error ThreadedSocketConnection::Start() {
LOGGER_AUTO_TRACE(logger_);
if (!thread_->start()) {
LOGGER_ERROR(logger_, "thread creation failed");
return TransportAdapter::FAIL;
}
LOGGER_INFO(logger_, "thread created");
return TransportAdapter::OK;
}
void ThreadedSocketConnection::Finalize() {
LOGGER_AUTO_TRACE(logger_);
if (unexpected_disconnect_) {
LOGGER_DEBUG(logger_, "unexpected_disconnect");
controller_->ConnectionAborted(
device_handle(), application_handle(), CommunicationError());
} else {
LOGGER_DEBUG(logger_, "not unexpected_disconnect");
controller_->ConnectionFinished(device_handle(), application_handle());
}
socket_connection_.Close();
}
TransportAdapter::Error ThreadedSocketConnection::Notify() {
LOGGER_AUTO_TRACE(logger_);
return socket_connection_.Notify() ? TransportAdapter::OK
: TransportAdapter::FAIL;
}
TransportAdapter::Error ThreadedSocketConnection::SendData(
::protocol_handler::RawMessagePtr message) {
LOGGER_AUTO_TRACE(logger_);
sync_primitives::AutoLock auto_lock(frames_to_send_mutex_);
frames_to_send_.push(message);
return Notify();
}
TransportAdapter::Error ThreadedSocketConnection::Disconnect() {
LOGGER_AUTO_TRACE(logger_);
terminate_flag_ = true;
return Notify();
}
void ThreadedSocketConnection::threadMain() {
LOGGER_AUTO_TRACE(logger_);
controller_->ConnectionCreated(this, device_uid_, app_handle_);
ConnectError* connect_error = NULL;
if (!Establish(&connect_error)) {
LOGGER_ERROR(logger_, "Connection Establish failed");
delete connect_error;
}
LOGGER_DEBUG(logger_, "Connection established");
controller_->ConnectDone(device_handle(), application_handle());
while (!terminate_flag_) {
Transmit();
}
LOGGER_DEBUG(logger_, "Connection is to finalize");
Finalize();
sync_primitives::AutoLock auto_lock(frames_to_send_mutex_);
while (!frames_to_send_.empty()) {
LOGGER_INFO(logger_, "removing message");
::protocol_handler::RawMessagePtr message = frames_to_send_.front();
frames_to_send_.pop();
controller_->DataSendFailed(
device_handle(), application_handle(), message, DataSendError());
}
}
void ThreadedSocketConnection::Transmit() {
LOGGER_AUTO_TRACE(logger_);
LOGGER_DEBUG(logger_, "Waiting for connection events. " << this);
socket_connection_.Wait();
LOGGER_DEBUG(logger_, "Waited for connection events: " << this);
}
void ThreadedSocketConnection::Send() {
LOGGER_AUTO_TRACE(logger_);
LOGGER_DEBUG(logger_, "Trying to send data if available");
FrameQueue frames_to_send;
{
sync_primitives::AutoLock auto_lock(frames_to_send_mutex_);
std::swap(frames_to_send, frames_to_send_);
}
size_t offset = 0;
while (!frames_to_send.empty()) {
::protocol_handler::RawMessagePtr frame = frames_to_send.front();
std::size_t bytes_sent = 0u;
const bool sent = socket_connection_.Send(
frame->data() + offset, frame->data_size() - offset, bytes_sent);
if (!sent) {
LOGGER_ERROR(logger_, "Send failed for connection " << this);
frames_to_send.pop();
offset = 0;
controller_->DataSendFailed(
device_handle(), application_handle(), frame, DataSendError());
Abort();
return;
}
if (bytes_sent >= 0) {
offset += bytes_sent;
if (offset == frame->data_size()) {
frames_to_send.pop();
offset = 0;
controller_->DataSendDone(device_handle(), application_handle(), frame);
}
}
}
}
void ThreadedSocketConnection::OnError(int error) {
LOGGER_ERROR(logger_, "Connection error: " << error);
Abort();
}
void ThreadedSocketConnection::OnData(const uint8_t* const buffer,
std::size_t buffer_size) {
protocol_handler::RawMessagePtr frame(
new protocol_handler::RawMessage(0, 0, buffer, buffer_size));
controller_->DataReceiveDone(device_handle(), application_handle(), frame);
}
void ThreadedSocketConnection::OnCanWrite() {
LOGGER_DEBUG(logger_, "OnCanWrite event. Trying to send data.");
Send();
}
void ThreadedSocketConnection::OnClose() {
LOGGER_DEBUG(logger_, "Connection has been closed");
Abort();
}
////////////////////////////////////////////////////////////////////////////////
/// SocketConnectionDelegate::SocketConnectionDelegate
////////////////////////////////////////////////////////////////////////////////
ThreadedSocketConnection::SocketConnectionDelegate::SocketConnectionDelegate(
ThreadedSocketConnection* connection)
: connection_(connection) {}
void ThreadedSocketConnection::SocketConnectionDelegate::threadMain() {
LOGGER_AUTO_TRACE(logger_);
DCHECK(connection_);
connection_->threadMain();
}
void ThreadedSocketConnection::SocketConnectionDelegate::exitThreadMain() {
LOGGER_AUTO_TRACE(logger_);
}
} // namespace transport_adapter
} // namespace transport_manager
|
