clang::tooling::dependencies::DependencyScanningFilesystemSharedCache Class Reference

This class is a shared cache, that caches the 'stat' and 'open' calls to the underlying real file system, and the scanned preprocessor directives of files. More...

#include "clang/Tooling/DependencyScanning/DependencyScanningFilesystem.h"

Classes
struct	CacheShard

Public Member Functions
	DependencyScanningFilesystemSharedCache ()
CacheShard &	getShardForFilename (StringRef Filename) const
	Returns shard for the given key. More...
CacheShard &	getShardForUID (llvm::sys::fs::UniqueID UID) const

Detailed Description

This class is a shared cache, that caches the 'stat' and 'open' calls to the underlying real file system, and the scanned preprocessor directives of files.

It is sharded based on the hash of the key to reduce the lock contention for the worker threads.

Definition at line 151 of file DependencyScanningFilesystem.h.

Constructor & Destructor Documentation

DependencyScanningFilesystemSharedCache()

DependencyScanningFilesystemSharedCache::DependencyScanningFilesystemSharedCache

(

)

Definition at line 84 of file DependencyScanningFilesystem.cpp.

References max().

Member Function Documentation

getShardForFilename()

DependencyScanningFilesystemSharedCache::CacheShard & DependencyScanningFilesystemSharedCache::getShardForFilename

(

StringRef

Filename

)

const

Returns shard for the given key.

Definition at line 96 of file DependencyScanningFilesystem.cpp.

References Filename, and clang::hash_value().

getShardForUID()

DependencyScanningFilesystemSharedCache::CacheShard & DependencyScanningFilesystemSharedCache::getShardForUID

(

llvm::sys::fs::UniqueID

UID

)

const

Definition at line 102 of file DependencyScanningFilesystem.cpp.

References clang::format::hash_combine().

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The documentation for this class was generated from the following files:

• include/clang/Tooling/DependencyScanning/DependencyScanningFilesystem.h
• lib/Tooling/DependencyScanning/DependencyScanningFilesystem.cpp