xref: /openbsd-src/gnu/llvm/lldb/source/Initialization/SystemLifetimeManager.cpp (revision be691f3bb6417f04a68938fadbcaee2d5795e764)
1dda28197Spatrick //===-- SystemLifetimeManager.cpp -----------------------------------------===//
2061da546Spatrick //
3061da546Spatrick // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4061da546Spatrick // See https://llvm.org/LICENSE.txt for license information.
5061da546Spatrick // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6061da546Spatrick //
7061da546Spatrick //===----------------------------------------------------------------------===//
8061da546Spatrick 
9061da546Spatrick #include "lldb/Initialization/SystemLifetimeManager.h"
10061da546Spatrick 
11061da546Spatrick #include "lldb/Core/Debugger.h"
12061da546Spatrick #include "lldb/Initialization/SystemInitializer.h"
13061da546Spatrick 
14061da546Spatrick #include <utility>
15061da546Spatrick 
16061da546Spatrick using namespace lldb_private;
17061da546Spatrick 
SystemLifetimeManager()18*be691f3bSpatrick SystemLifetimeManager::SystemLifetimeManager() : m_mutex() {}
19061da546Spatrick 
~SystemLifetimeManager()20061da546Spatrick SystemLifetimeManager::~SystemLifetimeManager() {
21061da546Spatrick   assert(!m_initialized &&
22061da546Spatrick          "SystemLifetimeManager destroyed without calling Terminate!");
23061da546Spatrick }
24061da546Spatrick 
Initialize(std::unique_ptr<SystemInitializer> initializer,LoadPluginCallbackType plugin_callback)25061da546Spatrick llvm::Error SystemLifetimeManager::Initialize(
26061da546Spatrick     std::unique_ptr<SystemInitializer> initializer,
27061da546Spatrick     LoadPluginCallbackType plugin_callback) {
28061da546Spatrick   std::lock_guard<std::recursive_mutex> guard(m_mutex);
29061da546Spatrick   if (!m_initialized) {
30061da546Spatrick     assert(!m_initializer && "Attempting to call "
31061da546Spatrick                              "SystemLifetimeManager::Initialize() when it is "
32061da546Spatrick                              "already initialized");
33061da546Spatrick     m_initialized = true;
34061da546Spatrick     m_initializer = std::move(initializer);
35061da546Spatrick 
36061da546Spatrick     if (auto e = m_initializer->Initialize())
37061da546Spatrick       return e;
38061da546Spatrick 
39061da546Spatrick     Debugger::Initialize(plugin_callback);
40061da546Spatrick   }
41061da546Spatrick 
42061da546Spatrick   return llvm::Error::success();
43061da546Spatrick }
44061da546Spatrick 
Terminate()45061da546Spatrick void SystemLifetimeManager::Terminate() {
46061da546Spatrick   std::lock_guard<std::recursive_mutex> guard(m_mutex);
47061da546Spatrick 
48061da546Spatrick   if (m_initialized) {
49061da546Spatrick     Debugger::Terminate();
50061da546Spatrick     m_initializer->Terminate();
51061da546Spatrick 
52061da546Spatrick     m_initializer.reset();
53061da546Spatrick     m_initialized = false;
54061da546Spatrick   }
55061da546Spatrick }
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