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annotate DPF-Prymula-audioplugins/dpf/distrho/extra/Thread.hpp @ 3:84e66ea83026

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DPF-Prymula-audioplugins-0.231015-2
author prymula <prymula76@outlook.com>
date Mon, 16 Oct 2023 21:53:34 +0200
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children
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3
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1 /*
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2 * DISTRHO Plugin Framework (DPF)
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3 * Copyright (C) 2012-2022 Filipe Coelho <falktx@falktx.com>
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4 *
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5 * Permission to use, copy, modify, and/or distribute this software for any purpose with
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6 * or without fee is hereby granted, provided that the above copyright notice and this
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7 * permission notice appear in all copies.
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8 *
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9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
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10 * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
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11 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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12 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
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13 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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15 */
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16
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17 #ifndef DISTRHO_THREAD_HPP_INCLUDED
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18 #define DISTRHO_THREAD_HPP_INCLUDED
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19
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20 #include "Mutex.hpp"
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21 #include "Sleep.hpp"
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22 #include "String.hpp"
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23
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24 #ifdef DISTRHO_OS_LINUX
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25 # include <sys/prctl.h>
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26 #endif
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27
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28 #ifdef DISTRHO_OS_WASM
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29 # error Threads do not work under wasm!
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30 #endif
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31
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32 START_NAMESPACE_DISTRHO
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33
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34 // -----------------------------------------------------------------------
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35 // Thread class
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36
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37 class Thread
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38 {
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39 protected:
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40 /*
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41 * Constructor.
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42 */
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43 Thread(const char* const threadName = nullptr) noexcept
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44 : fLock(),
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45 fSignal(),
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46 fName(threadName),
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47 #ifdef PTW32_DLLPORT
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48 fHandle({nullptr, 0}),
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49 #else
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50 fHandle(0),
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51 #endif
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52 fShouldExit(false) {}
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53
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54 /*
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55 * Destructor.
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56 */
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57 virtual ~Thread() /*noexcept*/
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58 {
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59 DISTRHO_SAFE_ASSERT(! isThreadRunning());
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60
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61 stopThread(-1);
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62 }
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63
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64 /*
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65 * Virtual function to be implemented by the subclass.
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66 */
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67 virtual void run() = 0;
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68
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69 // -------------------------------------------------------------------
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70
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71 public:
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72 /*
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73 * Check if the thread is running.
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74 */
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75 bool isThreadRunning() const noexcept
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76 {
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77 #ifdef PTW32_DLLPORT
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78 return (fHandle.p != nullptr);
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79 #else
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80 return (fHandle != 0);
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81 #endif
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82 }
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83
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84 /*
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85 * Check if the thread should exit.
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86 */
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87 bool shouldThreadExit() const noexcept
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88 {
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89 return fShouldExit;
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90 }
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91
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92 /*
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93 * Start the thread.
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94 */
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95 bool startThread(const bool withRealtimePriority = false) noexcept
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96 {
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97 // check if already running
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98 DISTRHO_SAFE_ASSERT_RETURN(! isThreadRunning(), true);
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99
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100 pthread_t handle;
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101
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102 pthread_attr_t attr;
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103 pthread_attr_init(&attr);
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104
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105 struct sched_param sched_param = {};
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106
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107 if (withRealtimePriority)
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108 {
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109 #ifdef __MOD_DEVICES__
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110 int rtprio;
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111 const char* const srtprio = std::getenv("MOD_PLUGIN_THREAD_PRIORITY");
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112 if (srtprio != nullptr && (rtprio = std::atoi(srtprio)) > 0)
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113 sched_param.sched_priority = rtprio - 1;
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114 else
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115 #endif
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116 sched_param.sched_priority = 80;
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117
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118 #ifndef DISTRHO_OS_HAIKU
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119 if (pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM) == 0 &&
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120 pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED) == 0 &&
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121 #ifndef DISTRHO_OS_WINDOWS
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122 (pthread_attr_setschedpolicy(&attr, SCHED_FIFO) == 0 ||
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123 pthread_attr_setschedpolicy(&attr, SCHED_RR) == 0) &&
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124 #endif
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prymula <prymula76@outlook.com>
parents:
diff changeset
125 pthread_attr_setschedparam(&attr, &sched_param) == 0)
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
126 {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
127 d_stdout("Thread setup with realtime priority successful");
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
128 }
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
129 else
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
130 #endif
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
131 {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
132 d_stdout("Thread setup with realtime priority failed, going with normal priority instead");
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
133 pthread_attr_destroy(&attr);
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
134 pthread_attr_init(&attr);
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
135 }
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
136 }
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
137
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
138 const MutexLocker ml(fLock);
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
139
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
140 fShouldExit = false;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
141
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
142 bool ok = pthread_create(&handle, &attr, _entryPoint, this) == 0;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
143 pthread_attr_destroy(&attr);
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
144
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
145 if (withRealtimePriority && !ok)
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
146 {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
147 d_stdout("Thread with realtime priority failed on creation, going with normal priority instead");
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
148 pthread_attr_init(&attr);
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
149 ok = pthread_create(&handle, &attr, _entryPoint, this) == 0;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
150 pthread_attr_destroy(&attr);
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
151 }
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
152
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
153 DISTRHO_SAFE_ASSERT_RETURN(ok, false);
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
154 #ifdef PTW32_DLLPORT
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
155 DISTRHO_SAFE_ASSERT_RETURN(handle.p != nullptr, false);
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
156 #else
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
157 DISTRHO_SAFE_ASSERT_RETURN(handle != 0, false);
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
158 #endif
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
159 pthread_detach(handle);
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
160 _copyFrom(handle);
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
161
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
162 // wait for thread to start
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
163 fSignal.wait();
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
164 return true;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
165 }
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
166
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
167 /*
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
168 * Stop the thread.
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
169 * In the 'timeOutMilliseconds':
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
170 * = 0 -> no wait
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
171 * > 0 -> wait timeout value
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
172 * < 0 -> wait forever
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
173 */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
174 bool stopThread(const int timeOutMilliseconds) noexcept
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
175 {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
176 const MutexLocker ml(fLock);
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
177
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
178 if (isThreadRunning())
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
179 {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
180 signalThreadShouldExit();
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
181
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
182 if (timeOutMilliseconds != 0)
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
183 {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
184 // Wait for the thread to stop
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
185 int timeOutCheck = (timeOutMilliseconds == 1 || timeOutMilliseconds == -1) ? timeOutMilliseconds : timeOutMilliseconds/2;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
186
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
187 for (; isThreadRunning();)
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
188 {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
189 d_msleep(2);
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
190
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
191 if (timeOutCheck < 0)
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
192 continue;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
193
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
194 if (timeOutCheck > 0)
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
195 timeOutCheck -= 1;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
196 else
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
197 break;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
198 }
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
199 }
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
200
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
201 if (isThreadRunning())
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
202 {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
203 // should never happen!
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
204 d_stderr2("assertion failure: \"! isThreadRunning()\" in file %s, line %i", __FILE__, __LINE__);
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
205
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
206 // copy thread id so we can clear our one
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
207 pthread_t threadId;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
208 _copyTo(threadId);
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
209 _init();
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
210
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
211 pthread_detach(threadId);
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
212 return false;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
213 }
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
214 }
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
215
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
216 return true;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
217 }
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
218
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
219 /*
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
220 * Tell the thread to stop as soon as possible.
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
221 */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
222 void signalThreadShouldExit() noexcept
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
223 {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
224 fShouldExit = true;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
225 }
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
226
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
227 // -------------------------------------------------------------------
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
228
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
229 /*
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
230 * Returns the name of the thread.
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
231 * This is the name that gets set in the constructor.
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
232 */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
233 const String& getThreadName() const noexcept
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
234 {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
235 return fName;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
236 }
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
237
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
238 /*
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
239 * Returns the Id/handle of the thread.
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
240 */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
241 pthread_t getThreadId() const noexcept
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
242 {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
243 return fHandle;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
244 }
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
245
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
246 /*
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
247 * Changes the name of the caller thread.
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
248 */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
249 static void setCurrentThreadName(const char* const name) noexcept
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
250 {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
251 DISTRHO_SAFE_ASSERT_RETURN(name != nullptr && name[0] != '\0',);
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
252
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
253 #ifdef DISTRHO_OS_LINUX
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254 prctl(PR_SET_NAME, name, 0, 0, 0);
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parents:
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255 #endif
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256 #if defined(__GLIBC__) && (__GLIBC__ * 1000 + __GLIBC_MINOR__) >= 2012 && !defined(DISTRHO_OS_GNU_HURD)
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parents:
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257 pthread_setname_np(pthread_self(), name);
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parents:
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258 #endif
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prymula <prymula76@outlook.com>
parents:
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259 }
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260
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parents:
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261 // -------------------------------------------------------------------
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262
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prymula <prymula76@outlook.com>
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263 private:
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prymula <prymula76@outlook.com>
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264 Mutex fLock; // Thread lock
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prymula <prymula76@outlook.com>
parents:
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265 Signal fSignal; // Thread start wait signal
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prymula <prymula76@outlook.com>
parents:
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266 const String fName; // Thread name
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prymula <prymula76@outlook.com>
parents:
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267 volatile pthread_t fHandle; // Handle for this thread
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prymula <prymula76@outlook.com>
parents:
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268 volatile bool fShouldExit; // true if thread should exit
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parents:
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269
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prymula <prymula76@outlook.com>
parents:
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270 /*
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prymula <prymula76@outlook.com>
parents:
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271 * Init pthread type.
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prymula <prymula76@outlook.com>
parents:
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272 */
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prymula <prymula76@outlook.com>
parents:
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273 void _init() noexcept
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prymula <prymula76@outlook.com>
parents:
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274 {
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prymula <prymula76@outlook.com>
parents:
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275 #ifdef PTW32_DLLPORT
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prymula <prymula76@outlook.com>
parents:
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276 fHandle.p = nullptr;
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prymula <prymula76@outlook.com>
parents:
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277 fHandle.x = 0;
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prymula <prymula76@outlook.com>
parents:
diff changeset
278 #else
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prymula <prymula76@outlook.com>
parents:
diff changeset
279 fHandle = 0;
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prymula <prymula76@outlook.com>
parents:
diff changeset
280 #endif
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prymula <prymula76@outlook.com>
parents:
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281 }
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prymula <prymula76@outlook.com>
parents:
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282
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prymula <prymula76@outlook.com>
parents:
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283 /*
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prymula <prymula76@outlook.com>
parents:
diff changeset
284 * Copy our pthread type from another var.
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prymula <prymula76@outlook.com>
parents:
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285 */
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prymula <prymula76@outlook.com>
parents:
diff changeset
286 void _copyFrom(const pthread_t& handle) noexcept
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prymula <prymula76@outlook.com>
parents:
diff changeset
287 {
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prymula <prymula76@outlook.com>
parents:
diff changeset
288 #ifdef PTW32_DLLPORT
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prymula <prymula76@outlook.com>
parents:
diff changeset
289 fHandle.p = handle.p;
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prymula <prymula76@outlook.com>
parents:
diff changeset
290 fHandle.x = handle.x;
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prymula <prymula76@outlook.com>
parents:
diff changeset
291 #else
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prymula <prymula76@outlook.com>
parents:
diff changeset
292 fHandle = handle;
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prymula <prymula76@outlook.com>
parents:
diff changeset
293 #endif
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prymula <prymula76@outlook.com>
parents:
diff changeset
294 }
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prymula <prymula76@outlook.com>
parents:
diff changeset
295
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prymula <prymula76@outlook.com>
parents:
diff changeset
296 /*
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prymula <prymula76@outlook.com>
parents:
diff changeset
297 * Copy our pthread type to another var.
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prymula <prymula76@outlook.com>
parents:
diff changeset
298 */
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prymula <prymula76@outlook.com>
parents:
diff changeset
299 void _copyTo(volatile pthread_t& handle) const noexcept
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prymula <prymula76@outlook.com>
parents:
diff changeset
300 {
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prymula <prymula76@outlook.com>
parents:
diff changeset
301 #ifdef PTW32_DLLPORT
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prymula <prymula76@outlook.com>
parents:
diff changeset
302 handle.p = fHandle.p;
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prymula <prymula76@outlook.com>
parents:
diff changeset
303 handle.x = fHandle.x;
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prymula <prymula76@outlook.com>
parents:
diff changeset
304 #else
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prymula <prymula76@outlook.com>
parents:
diff changeset
305 handle = fHandle;
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prymula <prymula76@outlook.com>
parents:
diff changeset
306 #endif
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
307 }
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prymula <prymula76@outlook.com>
parents:
diff changeset
308
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prymula <prymula76@outlook.com>
parents:
diff changeset
309 /*
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
310 * Thread entry point.
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prymula <prymula76@outlook.com>
parents:
diff changeset
311 */
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prymula <prymula76@outlook.com>
parents:
diff changeset
312 void _runEntryPoint() noexcept
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prymula <prymula76@outlook.com>
parents:
diff changeset
313 {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
314 if (fName.isNotEmpty())
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prymula <prymula76@outlook.com>
parents:
diff changeset
315 setCurrentThreadName(fName);
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prymula <prymula76@outlook.com>
parents:
diff changeset
316
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prymula <prymula76@outlook.com>
parents:
diff changeset
317 // report ready
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prymula <prymula76@outlook.com>
parents:
diff changeset
318 fSignal.signal();
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prymula <prymula76@outlook.com>
parents:
diff changeset
319
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prymula <prymula76@outlook.com>
parents:
diff changeset
320 try {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
321 run();
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
322 } catch(...) {}
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
323
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
324 // done
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
325 _init();
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
326 }
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
327
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
328 /*
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
329 * Thread entry point.
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
330 */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
331 static void* _entryPoint(void* userData) noexcept
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
332 {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
333 static_cast<Thread*>(userData)->_runEntryPoint();
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
334 return nullptr;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
335 }
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
336
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
337 DISTRHO_DECLARE_NON_COPYABLE(Thread)
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
338 };
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
339
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
340 // -----------------------------------------------------------------------
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
341
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
342 END_NAMESPACE_DISTRHO
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prymula <prymula76@outlook.com>
parents:
diff changeset
343
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
344 #endif // DISTRHO_THREAD_HPP_INCLUDED