Manages allocations of JIT memory. More...

#include "llvm/ExecutionEngine/JITLink/JITLinkMemoryManager.h"

Inheritance diagram for llvm::jitlink::JITLinkMemoryManager:

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Classes
class	FinalizedAlloc
	Represents a finalized allocation. More...

class	InFlightAlloc
	Represents an allocation which has not been finalized yet. More...

Public Types
using	AllocResult = Expected< std::unique_ptr< InFlightAlloc > >
	Typedef for the argument to be passed to OnAllocatedFunction.

using	OnAllocatedFunction = unique_function< void(AllocResult)>
	Called when allocation has been completed.

using	OnDeallocatedFunction = unique_function< void(Error)>
	Called when deallocation has completed.

Public Member Functions
virtual	~JITLinkMemoryManager ()

virtual void	allocate (const JITLinkDylib *JD, LinkGraph &G, OnAllocatedFunction OnAllocated)=0
	Start the allocation process.

AllocResult	allocate (const JITLinkDylib *JD, LinkGraph &G)
	Convenience function for blocking allocation.

virtual void	deallocate (std::vector< FinalizedAlloc > Allocs, OnDeallocatedFunction OnDeallocated)=0
	Deallocate a list of allocation objects.

void	deallocate (FinalizedAlloc Alloc, OnDeallocatedFunction OnDeallocated)
	Convenience function for deallocation of a single alloc.

Error	deallocate (std::vector< FinalizedAlloc > Allocs)
	Convenience function for blocking deallocation.

Error	deallocate (FinalizedAlloc Alloc)
	Convenience function for blocking deallocation of a single alloc.

Detailed Description

Manages allocations of JIT memory.

Instances of this class may be accessed concurrently from multiple threads and their implemetations should include any necessary synchronization.

Definition at line 45 of file JITLinkMemoryManager.h.

Member Typedef Documentation

◆ AllocResult

using llvm::jitlink::JITLinkMemoryManager::AllocResult = Expected<std::unique_ptr<InFlightAlloc> >

Typedef for the argument to be passed to OnAllocatedFunction.

Definition at line 145 of file JITLinkMemoryManager.h.

◆ OnAllocatedFunction

using llvm::jitlink::JITLinkMemoryManager::OnAllocatedFunction = unique_function<void(AllocResult)>

Called when allocation has been completed.

Definition at line 148 of file JITLinkMemoryManager.h.

◆ OnDeallocatedFunction

using llvm::jitlink::JITLinkMemoryManager::OnDeallocatedFunction = unique_function<void(Error)>

Called when deallocation has completed.

Definition at line 151 of file JITLinkMemoryManager.h.

Constructor & Destructor Documentation

◆ ~JITLinkMemoryManager()

llvm::jitlink::JITLinkMemoryManager::~JITLinkMemoryManager ( )

virtualdefault

Member Function Documentation

◆ allocate() [1/2]

AllocResult llvm::jitlink::JITLinkMemoryManager::allocate	(	const JITLinkDylib *	JD,
		LinkGraph &	G
	)

inline

Convenience function for blocking allocation.

Definition at line 165 of file JITLinkMemoryManager.h.

References llvm::Alloc, allocate(), and G.

◆ allocate() [2/2]

virtual void llvm::jitlink::JITLinkMemoryManager::allocate	(	const JITLinkDylib *	JD,
		LinkGraph &	G,
		OnAllocatedFunction	OnAllocated
	)

pure virtual

Start the allocation process.

If the initial allocation is successful then the OnAllocated function will be called with a std::unique_ptr<InFlightAlloc> value. If the assocation is unsuccessful then the OnAllocated function will be called with an Error.

Implemented in llvm::orc::EPCGenericJITLinkMemoryManager, llvm::orc::MapperJITLinkMemoryManager, llvm::jitlink::InProcessMemoryManager, and llvm::jitlink::InProcessMemoryManager.

Referenced by allocate(), and llvm::jitlink::SimpleSegmentAlloc::Create().