VirtualOutputBackends.h File Reference

This file contains the declarations of the concrete VirtualOutputBackend classes, which are the implementation for different output style and functions. More...

#include "llvm/ADT/IntrusiveRefCntPtr.h"
#include "llvm/Support/VirtualOutputBackend.h"
#include "llvm/Support/VirtualOutputConfig.h"

Go to the source code of this file.

Classes
class	llvm::vfs::ProxyOutputBackend
	A helper class for proxying another backend, with the default implementation to forward to the underlying backend. More...
class	llvm::vfs::OnDiskOutputBackend
	An output backend that creates files on disk, wrapping APIs in sys::fs. More...
struct	llvm::vfs::OnDiskOutputBackend::OutputSettings
	On disk output settings. More...

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.
namespace	llvm::vfs

Functions
IntrusiveRefCntPtr< OutputBackend >	llvm::vfs::makeNullOutputBackend ()
	Create a backend that ignores all output.
IntrusiveRefCntPtr< OutputBackend >	llvm::vfs::makeFilteringOutputBackend (IntrusiveRefCntPtr< OutputBackend > UnderlyingBackend, std::function< bool(StringRef, std::optional< OutputConfig >)> Filter)
	Make a backend where OutputBackend::createFile() forwards to UnderlyingBackend when Filter is true, and otherwise returns a NullOutput.
IntrusiveRefCntPtr< OutputBackend >	llvm::vfs::makeMirroringOutputBackend (IntrusiveRefCntPtr< OutputBackend > Backend1, IntrusiveRefCntPtr< OutputBackend > Backend2)
	Create a backend that forwards OutputBackend::createFile() to both Backend1 and Backend2.

Detailed Description

This file contains the declarations of the concrete VirtualOutputBackend classes, which are the implementation for different output style and functions.

This file contains:

• NullOutputBackend: discard all outputs written.
• OnDiskOutputBackend: write output to disk, with support for common output types, like append, or atomic update.
• FilteringOutputBackend: filer some output paths to underlying output backend.
• MirrorOutputBackend: mirror output to two output backends.

Definition in file VirtualOutputBackends.h.