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Initialize singleton instance by GoogleOnceInit()

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This commit is contained in:
Kenichiro IDA 2015-12-19 10:14:42 +09:00
parent 894d18fba4
commit 674e92d314
1 changed files with 24 additions and 2 deletions
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26
src/google/protobuf/descriptor.cc
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@ -665,9 +665,31 @@ FileDescriptorTables::FileDescriptorTables()
FileDescriptorTables::~FileDescriptorTables() {}
namespace {
FileDescriptorTables* file_descriptor_tables_ = NULL;
GOOGLE_PROTOBUF_DECLARE_ONCE(file_descriptor_tables_once_init_);
void DeleteFileDescriptorTables() {
delete file_descriptor_tables_;
file_descriptor_tables_ = NULL;
}
void InitFileDescriptorTables() {
file_descriptor_tables_ = new FileDescriptorTables();
internal::OnShutdown(&DeleteFileDescriptorTables);
}
inline void InitFileDescriptorTablesOnce() {
::google::protobuf::GoogleOnceInit(
&file_descriptor_tables_once_init_, &InitFileDescriptorTables);
}
} // anonymous namespace
inline const FileDescriptorTables& FileDescriptorTables::GetEmptyInstance() {
static const FileDescriptorTables kEmpty;
return kEmpty;
InitFileDescriptorTablesOnce();
return *file_descriptor_tables_;
}
void DescriptorPool::Tables::AddCheckpoint() {