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. More...

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

Classes
struct	SharedFileSystemEntry

Public Member Functions
	DependencyScanningFilesystemSharedCache ()
SharedFileSystemEntry &	get (StringRef Key)
	Returns a cache entry for the corresponding key. More...

Detailed Description

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

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

Definition at line 110 of file DependencyScanningFilesystem.h.

Constructor & Destructor Documentation

DependencyScanningFilesystemSharedCache()

DependencyScanningFilesystemSharedCache::DependencyScanningFilesystemSharedCache

(

)

Definition at line 103 of file DependencyScanningFilesystem.cpp.

References max().

Member Function Documentation

get()

DependencyScanningFilesystemSharedCache::SharedFileSystemEntry & DependencyScanningFilesystemSharedCache::get

(

StringRef

Key

)

Returns a cache entry for the corresponding key.

A new cache entry is created if the key is not in the cache. This is a thread safe call.

Definition at line 118 of file DependencyScanningFilesystem.cpp.

References clang::tooling::dependencies::CachedFileSystemEntry::CachedFileSystemEntry(), clang::tooling::dependencies::CachedFileSystemEntry::createDirectoryEntry(), clang::tooling::dependencies::CachedFileSystemEntry::createFileEntry(), Filename, clang::hash_value(), clang::tooling::dependencies::CachedFileSystemEntry::isValid(), clang::tooling::dependencies::DependencyScanningFilesystemSharedCache::SharedFileSystemEntry::Value, and clang::tooling::dependencies::DependencyScanningFilesystemSharedCache::SharedFileSystemEntry::ValueLock.

Referenced by clang::tooling::dependencies::DependencyScanningWorker::DependencyScanningWorker().

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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