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()
19    : m_mutex(), m_initialized(false) {}
20
21SystemLifetimeManager::~SystemLifetimeManager() {
22  assert(!m_initialized &&
23         "SystemLifetimeManager destroyed without calling Terminate!");
24}
25
26llvm::Error SystemLifetimeManager::Initialize(
27    std::unique_ptr<SystemInitializer> initializer,
28    LoadPluginCallbackType plugin_callback) {
29  std::lock_guard<std::recursive_mutex> guard(m_mutex);
30  if (!m_initialized) {
31    assert(!m_initializer && "Attempting to call "
32                             "SystemLifetimeManager::Initialize() when it is "
33                             "already initialized");
34    m_initialized = true;
35    m_initializer = std::move(initializer);
36
37    if (auto e = m_initializer->Initialize())
38      return e;
39
40    Debugger::Initialize(plugin_callback);
41  }
42
43  return llvm::Error::success();
44}
45
46void SystemLifetimeManager::Terminate() {
47  std::lock_guard<std::recursive_mutex> guard(m_mutex);
48
49  if (m_initialized) {
50    Debugger::Terminate();
51    m_initializer->Terminate();
52
53    m_initializer.reset();
54    m_initialized = false;
55  }
56}
57