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122 lines
3.4 KiB
122 lines
3.4 KiB
//===-- FormatCache.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/DataFormatters/FormatCache.h"
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using namespace lldb;
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using namespace lldb_private;
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FormatCache::Entry::Entry()
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: m_format_cached(false), m_summary_cached(false),
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m_synthetic_cached(false) {}
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bool FormatCache::Entry::IsFormatCached() { return m_format_cached; }
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bool FormatCache::Entry::IsSummaryCached() { return m_summary_cached; }
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bool FormatCache::Entry::IsSyntheticCached() { return m_synthetic_cached; }
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void FormatCache::Entry::Get(lldb::TypeFormatImplSP &retval) {
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retval = m_format_sp;
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}
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void FormatCache::Entry::Get(lldb::TypeSummaryImplSP &retval) {
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retval = m_summary_sp;
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}
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void FormatCache::Entry::Get(lldb::SyntheticChildrenSP &retval) {
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retval = m_synthetic_sp;
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}
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void FormatCache::Entry::Set(lldb::TypeFormatImplSP format_sp) {
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m_format_cached = true;
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m_format_sp = format_sp;
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}
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void FormatCache::Entry::Set(lldb::TypeSummaryImplSP summary_sp) {
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m_summary_cached = true;
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m_summary_sp = summary_sp;
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}
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void FormatCache::Entry::Set(lldb::SyntheticChildrenSP synthetic_sp) {
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m_synthetic_cached = true;
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m_synthetic_sp = synthetic_sp;
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}
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FormatCache::Entry &FormatCache::GetEntry(ConstString type) {
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auto i = m_map.find(type), e = m_map.end();
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if (i != e)
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return i->second;
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m_map[type] = FormatCache::Entry();
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return m_map[type];
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}
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namespace lldb_private {
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template<> bool FormatCache::Entry::IsCached<lldb::TypeFormatImplSP>() {
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return IsFormatCached();
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}
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template<> bool FormatCache::Entry::IsCached<lldb::TypeSummaryImplSP> () {
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return IsSummaryCached();
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}
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template<> bool FormatCache::Entry::IsCached<lldb::SyntheticChildrenSP>() {
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return IsSyntheticCached();
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}
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} // namespace lldb_private
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template <typename ImplSP>
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bool FormatCache::Get(ConstString type, ImplSP &format_impl_sp) {
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std::lock_guard<std::recursive_mutex> guard(m_mutex);
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auto entry = GetEntry(type);
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if (entry.IsCached<ImplSP>()) {
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m_cache_hits++;
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entry.Get(format_impl_sp);
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return true;
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}
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m_cache_misses++;
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format_impl_sp.reset();
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return false;
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}
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/// Explicit instantiations for the three types.
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/// \{
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template bool
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FormatCache::Get<lldb::TypeFormatImplSP>(ConstString, lldb::TypeFormatImplSP &);
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template bool
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FormatCache::Get<lldb::TypeSummaryImplSP>(ConstString,
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lldb::TypeSummaryImplSP &);
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template bool
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FormatCache::Get<lldb::SyntheticChildrenSP>(ConstString,
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lldb::SyntheticChildrenSP &);
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/// \}
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void FormatCache::Set(ConstString type, lldb::TypeFormatImplSP &format_sp) {
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std::lock_guard<std::recursive_mutex> guard(m_mutex);
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GetEntry(type).Set(format_sp);
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}
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void FormatCache::Set(ConstString type, lldb::TypeSummaryImplSP &summary_sp) {
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std::lock_guard<std::recursive_mutex> guard(m_mutex);
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GetEntry(type).Set(summary_sp);
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}
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void FormatCache::Set(ConstString type,
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lldb::SyntheticChildrenSP &synthetic_sp) {
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std::lock_guard<std::recursive_mutex> guard(m_mutex);
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GetEntry(type).Set(synthetic_sp);
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}
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void FormatCache::Clear() {
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std::lock_guard<std::recursive_mutex> guard(m_mutex);
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m_map.clear();
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}
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