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2fe8327406
This patch replaces (llvm::|)Optional< with std::optional<. I'll post a separate patch to clean up the "using" declarations, #include "llvm/ADT/Optional.h", etc. This is part of an effort to migrate from llvm::Optional to std::optional: https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
//===-- UserIDResolver.cpp ------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Utility/UserIDResolver.h"
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#include "llvm/Support/ManagedStatic.h"
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#include <optional>
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using namespace lldb_private;
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UserIDResolver::~UserIDResolver() = default;
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std::optional<llvm::StringRef> UserIDResolver::Get(
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id_t id, Map &cache,
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std::optional<std::string> (UserIDResolver::*do_get)(id_t)) {
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std::lock_guard<std::mutex> guard(m_mutex);
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auto iter_bool = cache.try_emplace(id, std::nullopt);
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if (iter_bool.second)
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iter_bool.first->second = (this->*do_get)(id);
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if (iter_bool.first->second)
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return llvm::StringRef(*iter_bool.first->second);
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return std::nullopt;
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}
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namespace {
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class NoopResolver : public UserIDResolver {
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protected:
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std::optional<std::string> DoGetUserName(id_t uid) override {
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return std::nullopt;
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}
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std::optional<std::string> DoGetGroupName(id_t gid) override {
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return std::nullopt;
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}
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};
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} // namespace
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static llvm::ManagedStatic<NoopResolver> g_noop_resolver;
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UserIDResolver &UserIDResolver::GetNoopResolver() { return *g_noop_resolver; }
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