OpenShot Audio Library | OpenShotAudio: juce_NamedPipe.cpp Source File

OpenShot Audio Library | OpenShotAudio 0.3.0

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juce_NamedPipe.cpp
1/*
2 ==============================================================================
3
4 This file is part of the JUCE library.
5 Copyright (c) 2017 - ROLI Ltd.
6
7 JUCE is an open source library subject to commercial or open-source
8 licensing.
9
10 The code included in this file is provided under the terms of the ISC license
11 http://www.isc.org/downloads/software-support-policy/isc-license. Permission
12 To use, copy, modify, and/or distribute this software for any purpose with or
13 without fee is hereby granted provided that the above copyright notice and
14 this permission notice appear in all copies.
15
16 JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
17 EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
18 DISCLAIMED.
19
20 ==============================================================================
21*/
22
23namespace juce
24{
25
26NamedPipe::NamedPipe() {}
27
28NamedPipe::~NamedPipe()
29{
30 close();
31}
32
33 bool NamedPipe::openExisting (const String& pipeName)
34{
35 close();
36
37 ScopedWriteLock sl (lock);
38 currentPipeName = pipeName;
39 return openInternal (pipeName, false, false);
40}
41
42 bool NamedPipe::isOpen() const
43{
44 return pimpl != nullptr;
45}
46
47 bool NamedPipe::createNewPipe (const String& pipeName, bool mustNotExist)
48{
49 close();
50
51 ScopedWriteLock sl (lock);
52 currentPipeName = pipeName;
53 return openInternal (pipeName, true, mustNotExist);
54}
55
56 String NamedPipe::getName() const
57{
58 return currentPipeName;
59}
60
61// other methods for this class are implemented in the platform-specific files
62
63
64//==============================================================================
65//==============================================================================
66#if JUCE_UNIT_TESTS
67
68class NamedPipeTests : public UnitTest
69{
70public:
71 //==============================================================================
72 NamedPipeTests()
73 : UnitTest ("NamedPipe", UnitTestCategories::networking)
74 {}
75
76 void runTest() override
77 {
78 const String pipeName ("TestPipe");
79
80 beginTest ("Pre test cleanup");
81 {
82 NamedPipe pipe;
83 expect (pipe.createNewPipe (pipeName, false));
84 }
85
86 beginTest ("Create pipe");
87 {
88 NamedPipe pipe;
89 expect (! pipe.isOpen());
90
91 expect (pipe.createNewPipe (pipeName, true));
92 expect (pipe.isOpen());
93
94 expect (pipe.createNewPipe (pipeName, false));
95 expect (pipe.isOpen());
96
97 NamedPipe otherPipe;
98 expect (! otherPipe.createNewPipe (pipeName, true));
99 expect (! otherPipe.isOpen());
100 }
101
102 beginTest ("Existing pipe");
103 {
104 NamedPipe pipe;
105
106 expect (! pipe.openExisting (pipeName));
107 expect (! pipe.isOpen());
108
109 expect (pipe.createNewPipe (pipeName, true));
110
111 NamedPipe otherPipe;
112 expect (otherPipe.openExisting (pipeName));
113 expect (otherPipe.isOpen());
114 }
115
116 int sendData = 4684682;
117
118 beginTest ("Receive message created pipe");
119 {
120 NamedPipe pipe;
121 expect (pipe.createNewPipe (pipeName, true));
122
123 WaitableEvent senderFinished;
124 SenderThread sender (pipeName, false, senderFinished, sendData);
125
126 sender.startThread();
127
128 int recvData = -1;
129 auto bytesRead = pipe.read (&recvData, sizeof (recvData), 2000);
130
131 expect (senderFinished.wait (4000));
132
133 expectEquals (bytesRead, (int) sizeof (recvData));
134 expectEquals (sender.result, (int) sizeof (sendData));
135 expectEquals (recvData, sendData);
136 }
137
138 beginTest ("Receive message existing pipe");
139 {
140 WaitableEvent senderFinished;
141 SenderThread sender (pipeName, true, senderFinished, sendData);
142
143 NamedPipe pipe;
144 expect (pipe.openExisting (pipeName));
145
146 sender.startThread();
147
148 int recvData = -1;
149 auto bytesRead = pipe.read (&recvData, sizeof (recvData), 2000);
150
151 expect (senderFinished.wait (4000));
152
153 expectEquals (bytesRead, (int) sizeof (recvData));
154 expectEquals (sender.result, (int) sizeof (sendData));
155 expectEquals (recvData, sendData);
156 }
157
158 beginTest ("Send message created pipe");
159 {
160 NamedPipe pipe;
161 expect (pipe.createNewPipe (pipeName, true));
162
163 WaitableEvent receiverFinished;
164 ReceiverThread receiver (pipeName, false, receiverFinished);
165
166 receiver.startThread();
167
168 auto bytesWritten = pipe.write (&sendData, sizeof (sendData), 2000);
169
170 expect (receiverFinished.wait (4000));
171
172 expectEquals (bytesWritten, (int) sizeof (sendData));
173 expectEquals (receiver.result, (int) sizeof (receiver.recvData));
174 expectEquals (receiver.recvData, sendData);
175 }
176
177 beginTest ("Send message existing pipe");
178 {
179 WaitableEvent receiverFinished;
180 ReceiverThread receiver (pipeName, true, receiverFinished);
181
182 NamedPipe pipe;
183 expect (pipe.openExisting (pipeName));
184
185 receiver.startThread();
186
187 auto bytesWritten = pipe.write (&sendData, sizeof (sendData), 2000);
188
189 expect (receiverFinished.wait (4000));
190
191 expectEquals (bytesWritten, (int) sizeof (sendData));
192 expectEquals (receiver.result, (int) sizeof (receiver.recvData));
193 expectEquals (receiver.recvData, sendData);
194 }
195 }
196
197private:
198 //==============================================================================
199 struct NamedPipeThread : public Thread
200 {
201 NamedPipeThread (const String& tName, const String& pName,
202 bool shouldCreatePipe, WaitableEvent& completed)
203 : Thread (tName), pipeName (pName), workCompleted (completed)
204 {
205 if (shouldCreatePipe)
206 pipe.createNewPipe (pipeName);
207 else
208 pipe.openExisting (pipeName);
209 }
210
211 ~NamedPipeThread()
212 {
213 stopThread (100);
214 }
215
216 NamedPipe pipe;
217 const String& pipeName;
218 WaitableEvent& workCompleted;
219
220 int result = -2;
221 };
222
223 //==============================================================================
224 struct SenderThread : public NamedPipeThread
225 {
226 SenderThread (const String& pName, bool shouldCreatePipe,
227 WaitableEvent& completed, int sData)
228 : NamedPipeThread ("NamePipeSender", pName, shouldCreatePipe, completed),
229 sendData (sData)
230 {}
231
232 void run() override
233 {
234 result = pipe.write (&sendData, sizeof (sendData), 2000);
235 workCompleted.signal();
236 }
237
238 const int sendData;
239 };
240
241 //==============================================================================
242 struct ReceiverThread : public NamedPipeThread
243 {
244 ReceiverThread (const String& pName, bool shouldCreatePipe,
245 WaitableEvent& completed)
246 : NamedPipeThread ("NamePipeSender", pName, shouldCreatePipe, completed)
247 {}
248
249 void run() override
250 {
251 result = pipe.read (&recvData, sizeof (recvData), 2000);
252 workCompleted.signal();
253 }
254
255 int recvData = -2;
256 };
257};
258
259static NamedPipeTests namedPipeTests;
260
261#endif
262
263} // namespace juce
juce::NamedPipe::getName
String getName() const
Definition: juce_NamedPipe.cpp:56
juce::NamedPipe::isOpen
bool isOpen() const
Definition: juce_NamedPipe.cpp:42
juce::NamedPipe::createNewPipe
bool createNewPipe(const String &pipeName, bool mustNotExist=false)
Definition: juce_NamedPipe.cpp:47
juce::NamedPipe::NamedPipe
NamedPipe()
Definition: juce_NamedPipe.cpp:26
juce::NamedPipe::openExisting
bool openExisting(const String &pipeName)
Definition: juce_NamedPipe.cpp:33
juce::NamedPipe::close
void close()
juce::NamedPipe::~NamedPipe
~NamedPipe()
Definition: juce_NamedPipe.cpp:28
juce::ScopedWriteLock
Definition: juce_ScopedWriteLock.h:52
juce::String
Definition: juce_String.h:39
juce::UnitTest
Definition: juce_UnitTest.h:70