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//===--- IndexDataStore.h - Index data store info -------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_INDEX_INDEXDATASTORE_H
#define LLVM_CLANG_INDEX_INDEXDATASTORE_H
#include "clang/Basic/LLVM.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringRef.h"
#include <functional>
#include <memory>
#include <string>
#include <vector>
namespace clang {
namespace index {
class AbstractDirectoryWatcher {
public:
enum class EventKind {
/// A file was added.
Added,
/// A file was removed.
Removed,
/// A file was modified.
Modified,
/// The watched directory got deleted. No more events will follow.
DirectoryDeleted,
};
struct Event {
EventKind Kind;
std::string Filename;
timespec ModTime;
};
typedef std::function<void(ArrayRef<Event> Events, bool isInitial)>
EventReceiver;
typedef std::unique_ptr<AbstractDirectoryWatcher>(CreateFnTy)(
StringRef Path, EventReceiver Receiver, bool waitInitialSync,
std::string &Error);
virtual ~AbstractDirectoryWatcher() {}
};
class IndexDataStore {
public:
~IndexDataStore();
static std::unique_ptr<IndexDataStore> create(StringRef IndexStorePath,
std::string &Error);
StringRef getFilePath() const;
bool foreachUnitName(bool sorted,
llvm::function_ref<bool(StringRef unitName)> receiver);
static unsigned getFormatVersion();
enum class UnitEventKind {
Added,
Removed,
Modified,
/// The directory got deleted. No more events will follow.
DirectoryDeleted,
};
struct UnitEvent {
UnitEventKind Kind;
StringRef UnitName;
timespec ModTime;
};
struct UnitEventNotification {
bool IsInitial;
ArrayRef<UnitEvent> Events;
};
typedef std::function<void(UnitEventNotification)> UnitEventHandler;
void setUnitEventHandler(UnitEventHandler Handler);
/// \returns true if an error occurred.
bool startEventListening(
llvm::function_ref<AbstractDirectoryWatcher::CreateFnTy> createFn,
bool waitInitialSync, std::string &Error);
void stopEventListening();
void discardUnit(StringRef UnitName);
void discardRecord(StringRef RecordName);
void purgeStaleData();
private:
IndexDataStore(void *Impl) : Impl(Impl) {}
void *Impl; // An IndexDataStoreImpl.
};
} // namespace index
} // namespace clang
#endif
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