OpenShot Audio Library | OpenShotAudio: juce_ChildProcessManager.h Source File

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juce_ChildProcessManager.h
1/*
2 ==============================================================================
3
4 This file is part of the JUCE library.
5 Copyright (c) 2022 - Raw Material Software Limited
6
7 JUCE is an open source library subject to commercial or open-source
8 licensing.
9
10 By using JUCE, you agree to the terms of both the JUCE 7 End-User License
11 Agreement and JUCE Privacy Policy.
12
13 End User License Agreement: www.juce.com/juce-7-licence
14 Privacy Policy: www.juce.com/juce-privacy-policy
15
16 Or: You may also use this code under the terms of the GPL v3 (see
17 www.gnu.org/licenses).
18
19 JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
20 EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
21 DISCLAIMED.
22
23 ==============================================================================
24*/
25
26namespace juce
27{
47 class JUCE_API ChildProcessManager final : private DeletedAtShutdown
48 {
49 public:
50 #ifndef DOXYGEN
51 JUCE_DECLARE_SINGLETON_SINGLETHREADED_MINIMAL (ChildProcessManager)
52 #endif
53
62 template <typename... Args>
63 std::shared_ptr<ChildProcess> createAndStartManagedChildProcess (Args&&... args)
64 {
65 auto p = std::make_shared<ChildProcess>();
66
67 if (! p->start (std::forward<Args> (args)...))
68 return nullptr;
69
70 processes.insert (p);
71 timer.startTimer (1000);
72
73 return p;
74 }
75
80 auto addChildProcessExitedListener (std::function<void (ChildProcess*)> listener)
81 {
82 return listeners.addListener (std::move (listener));
83 }
84
88 auto hasRunningProcess() const
89 {
90 return timer.isTimerRunning();
91 }
92
93 private:
94 ChildProcessManager() = default;
95 ~ChildProcessManager() override { clearSingletonInstance(); }
96
97 void checkProcesses();
98
99 std::set<std::shared_ptr<ChildProcess>> processes;
100 detail::CallbackListenerList<ChildProcess*> listeners;
101 TimedCallback timer { [this] { checkProcesses(); } };
102 };
103
104} // namespace juce
juce::ChildProcessManager
Definition juce_ChildProcessManager.h:48
juce::ChildProcessManager::addChildProcessExitedListener
auto addChildProcessExitedListener(std::function< void(ChildProcess *)> listener)
Definition juce_ChildProcessManager.h:80
juce::ChildProcessManager::hasRunningProcess
auto hasRunningProcess() const
Definition juce_ChildProcessManager.h:88
juce::ChildProcessManager::createAndStartManagedChildProcess
std::shared_ptr< ChildProcess > createAndStartManagedChildProcess(Args &&... args)
Definition juce_ChildProcessManager.h:63
juce::ChildProcess
Definition juce_ChildProcess.h:36
juce::DeletedAtShutdown::DeletedAtShutdown
DeletedAtShutdown()
Definition juce_DeletedAtShutdown.cpp:34