1 //===-- SystemLifetimeManager.cpp ------------------------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #include "lldb/Initialization/SystemLifetimeManager.h"
11 
12 #include "lldb/Core/Debugger.h"
13 #include "lldb/Initialization/SystemInitializer.h"
14 
15 #include <utility>
16 
17 using namespace lldb_private;
18 
19 SystemLifetimeManager::SystemLifetimeManager() : m_mutex(), m_initialized(false)
20 {
21 }
22 
23 SystemLifetimeManager::~SystemLifetimeManager()
24 {
25     assert(!m_initialized && "SystemLifetimeManager destroyed without calling Terminate!");
26 }
27 
28 void
29 SystemLifetimeManager::Initialize(std::unique_ptr<SystemInitializer> initializer,
30                                   LoadPluginCallbackType plugin_callback)
31 {
32     std::lock_guard<std::recursive_mutex> guard(m_mutex);
33     if (!m_initialized)
34     {
35         assert(!m_initializer &&
36                "Attempting to call SystemLifetimeManager::Initialize() when it is already initialized");
37         m_initialized = true;
38         m_initializer = std::move(initializer);
39 
40         m_initializer->Initialize();
41         Debugger::Initialize(plugin_callback);
42     }
43 }
44 
45 void
46 SystemLifetimeManager::Terminate()
47 {
48     std::lock_guard<std::recursive_mutex> guard(m_mutex);
49 
50     if (m_initialized)
51     {
52         Debugger::Terminate();
53         m_initializer->Terminate();
54 
55         m_initializer.reset();
56         m_initialized = false;
57     }
58 }
59