1//===-- SystemLifetimeManager.cpp -----------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "lldb/Initialization/SystemLifetimeManager.h"
10
11#include "lldb/Core/Debugger.h"
12#include "lldb/Initialization/SystemInitializer.h"
13
14#include <utility>
15
16using namespace lldb_private;
17
18SystemLifetimeManager::SystemLifetimeManager() : m_mutex() {}
19
20SystemLifetimeManager::~SystemLifetimeManager() {
21  assert(!m_initialized &&
22         "SystemLifetimeManager destroyed without calling Terminate!");
23}
24
25llvm::Error SystemLifetimeManager::Initialize(
26    std::unique_ptr<SystemInitializer> initializer,
27    LoadPluginCallbackType plugin_callback) {
28  std::lock_guard<std::recursive_mutex> guard(m_mutex);
29  if (!m_initialized) {
30    assert(!m_initializer && "Attempting to call "
31                             "SystemLifetimeManager::Initialize() when it is "
32                             "already initialized");
33    m_initialized = true;
34    m_initializer = std::move(initializer);
35
36    if (auto e = m_initializer->Initialize())
37      return e;
38
39    Debugger::Initialize(plugin_callback);
40  }
41
42  return llvm::Error::success();
43}
44
45void SystemLifetimeManager::Terminate() {
46  std::lock_guard<std::recursive_mutex> guard(m_mutex);
47
48  if (m_initialized) {
49    Debugger::Terminate();
50    m_initializer->Terminate();
51
52    m_initializer.reset();
53    m_initialized = false;
54  }
55}
56