llvm::orc::MemoryMapper Class Reference

Manages mapping, content transfer and protections for JIT memory. More...

#include "llvm/ExecutionEngine/Orc/MemoryMapper.h"

Inheritance diagram for llvm::orc::MemoryMapper:

Classes
struct	AllocInfo
	Represents a single allocation containing multiple segments and initialization and deinitialization actions. More...

Public Types
using	OnReservedFunction = unique_function< void(Expected< ExecutorAddrRange >)>
using	OnInitializedFunction = unique_function< void(Expected< ExecutorAddr >)>
using	OnDeinitializedFunction = unique_function< void(Error)>
using	OnReleasedFunction = unique_function< void(Error)>

Public Member Functions
virtual unsigned int	getPageSize ()=0
virtual void	reserve (size_t NumBytes, OnReservedFunction OnReserved)=0
	Reserves address space in executor process.
virtual char *	prepare (ExecutorAddr Addr, size_t ContentSize)=0
	Provides working memory.
virtual void	initialize (AllocInfo &AI, OnInitializedFunction OnInitialized)=0
	Ensures executor memory is synchronized with working copy memory, sends functions to be called after initilization and before deinitialization and applies memory protections Returns a unique address identifying the allocation.
virtual void	deinitialize (ArrayRef< ExecutorAddr > Allocations, OnDeinitializedFunction OnDeInitialized)=0
	Runs previously specified deinitialization actions Executor addresses returned by initialize should be passed.
virtual void	release (ArrayRef< ExecutorAddr > Reservations, OnReleasedFunction OnRelease)=0
	Release address space acquired through reserve()
virtual	~MemoryMapper ()

Detailed Description

Manages mapping, content transfer and protections for JIT memory.

Definition at line 26 of file MemoryMapper.h.

Member Typedef Documentation

OnDeinitializedFunction

using llvm::orc::MemoryMapper::OnDeinitializedFunction = unique_function<void(Error)>

Definition at line 66 of file MemoryMapper.h.

OnInitializedFunction

using llvm::orc::MemoryMapper::OnInitializedFunction = unique_function<void(Expected<ExecutorAddr>)>

Definition at line 55 of file MemoryMapper.h.

OnReleasedFunction

using llvm::orc::MemoryMapper::OnReleasedFunction = unique_function<void(Error)>

Definition at line 73 of file MemoryMapper.h.

OnReservedFunction

using llvm::orc::MemoryMapper::OnReservedFunction = unique_function<void(Expected<ExecutorAddrRange>)>

Definition at line 44 of file MemoryMapper.h.

Constructor & Destructor Documentation

~MemoryMapper()

llvm::orc::MemoryMapper::~MemoryMapper ( )

virtual

Definition at line 31 of file MemoryMapper.cpp.

Member Function Documentation

deinitialize()

virtual void llvm::orc::MemoryMapper::deinitialize ( ArrayRef< ExecutorAddr >  Allocations, OnDeinitializedFunction  OnDeInitialized  )

pure virtual

Runs previously specified deinitialization actions Executor addresses returned by initialize should be passed.

Implemented in llvm::orc::InProcessMemoryMapper, and llvm::orc::SharedMemoryMapper.

getPageSize()

virtual unsigned int llvm::orc::MemoryMapper::getPageSize ( )

pure virtual

Implemented in llvm::orc::InProcessMemoryMapper, and llvm::orc::SharedMemoryMapper.

initialize()

virtual void llvm::orc::MemoryMapper::initialize ( AllocInfo &  AI, OnInitializedFunction  OnInitialized  )

pure virtual

Ensures executor memory is synchronized with working copy memory, sends functions to be called after initilization and before deinitialization and applies memory protections Returns a unique address identifying the allocation.

This address should be passed to deinitialize to run deallocation actions (and reset permissions where possible).

Implemented in llvm::orc::InProcessMemoryMapper, and llvm::orc::SharedMemoryMapper.

prepare()

virtual char * llvm::orc::MemoryMapper::prepare ( ExecutorAddr  Addr, size_t  ContentSize  )

pure virtual

Provides working memory.

Implemented in llvm::orc::InProcessMemoryMapper, and llvm::orc::SharedMemoryMapper.

release()

virtual void llvm::orc::MemoryMapper::release ( ArrayRef< ExecutorAddr >  Reservations, OnReleasedFunction  OnRelease  )

pure virtual

Release address space acquired through reserve()

Implemented in llvm::orc::InProcessMemoryMapper, and llvm::orc::SharedMemoryMapper.

reserve()

virtual void llvm::orc::MemoryMapper::reserve ( size_t  NumBytes, OnReservedFunction  OnReserved  )

pure virtual

Reserves address space in executor process.

Implemented in llvm::orc::InProcessMemoryMapper, and llvm::orc::SharedMemoryMapper.

---

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

• include/llvm/ExecutionEngine/Orc/MemoryMapper.h
• lib/ExecutionEngine/Orc/MemoryMapper.cpp