forked from OSchip/llvm-project
101 lines
2.8 KiB
C++
101 lines
2.8 KiB
C++
//===-- ClangExternalASTSourceCommon.cpp ------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Symbol/ClangExternalASTSourceCommon.h"
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#include "lldb/Utility/Stream.h"
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#include <mutex>
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using namespace lldb_private;
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uint64_t g_TotalSizeOfMetadata = 0;
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typedef llvm::DenseMap<clang::ExternalASTSource *,
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ClangExternalASTSourceCommon *>
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ASTSourceMap;
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static ASTSourceMap &GetSourceMap(std::unique_lock<std::mutex> &guard) {
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// Intentionally leaked to avoid problems with global destructors.
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static ASTSourceMap *s_source_map = new ASTSourceMap;
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static std::mutex s_mutex;
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std::unique_lock<std::mutex> locked_guard(s_mutex);
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guard.swap(locked_guard);
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return *s_source_map;
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}
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ClangExternalASTSourceCommon *
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ClangExternalASTSourceCommon::Lookup(clang::ExternalASTSource *source) {
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std::unique_lock<std::mutex> guard;
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ASTSourceMap &source_map = GetSourceMap(guard);
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ASTSourceMap::iterator iter = source_map.find(source);
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if (iter != source_map.end()) {
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return iter->second;
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} else {
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return nullptr;
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}
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}
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ClangExternalASTSourceCommon::ClangExternalASTSourceCommon()
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: clang::ExternalASTSource() {
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g_TotalSizeOfMetadata += m_metadata.size();
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std::unique_lock<std::mutex> guard;
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GetSourceMap(guard)[this] = this;
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}
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ClangExternalASTSourceCommon::~ClangExternalASTSourceCommon() {
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std::unique_lock<std::mutex> guard;
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GetSourceMap(guard).erase(this);
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g_TotalSizeOfMetadata -= m_metadata.size();
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}
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ClangASTMetadata *
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ClangExternalASTSourceCommon::GetMetadata(const void *object) {
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if (HasMetadata(object))
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return &m_metadata[object];
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else
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return nullptr;
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}
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void ClangExternalASTSourceCommon::SetMetadata(const void *object,
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ClangASTMetadata &metadata) {
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uint64_t orig_size = m_metadata.size();
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m_metadata[object] = metadata;
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uint64_t new_size = m_metadata.size();
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g_TotalSizeOfMetadata += (new_size - orig_size);
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}
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bool ClangExternalASTSourceCommon::HasMetadata(const void *object) {
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return m_metadata.find(object) != m_metadata.end();
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}
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void ClangASTMetadata::Dump(Stream *s) {
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lldb::user_id_t uid = GetUserID();
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if (uid != LLDB_INVALID_UID) {
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s->Printf("uid=0x%" PRIx64, uid);
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}
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uint64_t isa_ptr = GetISAPtr();
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if (isa_ptr != 0) {
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s->Printf("isa_ptr=0x%" PRIx64, isa_ptr);
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}
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const char *obj_ptr_name = GetObjectPtrName();
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if (obj_ptr_name) {
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s->Printf("obj_ptr_name=\"%s\" ", obj_ptr_name);
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}
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if (m_is_dynamic_cxx) {
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s->Printf("is_dynamic_cxx=%i ", m_is_dynamic_cxx);
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}
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s->EOL();
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}
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