1//===-- symbolLocator.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/Symbol/SymbolLocator.h"
10
11#include "lldb/Core/Debugger.h"
12#include "lldb/Core/PluginManager.h"
13
14#include "llvm/ADT/SmallSet.h"
15#include "llvm/Support/ThreadPool.h"
16
17using namespace lldb;
18using namespace lldb_private;
19
20void SymbolLocator::DownloadSymbolFileAsync(const UUID &uuid) {
21  if (!ModuleList::GetGlobalModuleListProperties().GetEnableBackgroundLookup())
22    return;
23
24  static llvm::SmallSet<UUID, 8> g_seen_uuids;
25  static std::mutex g_mutex;
26  Debugger::GetThreadPool().async([=]() {
27    {
28      std::lock_guard<std::mutex> guard(g_mutex);
29      if (g_seen_uuids.count(uuid))
30        return;
31      g_seen_uuids.insert(uuid);
32    }
33
34    Status error;
35    ModuleSpec module_spec;
36    module_spec.GetUUID() = uuid;
37    if (!PluginManager::DownloadObjectAndSymbolFile(module_spec, error,
38                                                    /*force_lookup=*/true,
39                                                    /*copy_executable=*/false))
40      return;
41
42    if (error.Fail())
43      return;
44
45    Debugger::ReportSymbolChange(module_spec);
46  });
47}
48