llvm::ThreadSafeAllocator< AllocatorType > Class Template Reference

Thread-safe allocator adaptor. More...

#include "llvm/Support/ThreadSafeAllocator.h"

Public Member Functions
auto	Allocate (size_t N)
auto	Allocate (size_t Size, size_t Align)
template<typename FnT , typename T = typename llvm::function_traits<FnT>::result_t>
T	applyLocked (FnT Fn)

Detailed Description

template<class AllocatorType>
class llvm::ThreadSafeAllocator< AllocatorType >

Thread-safe allocator adaptor.

Uses a spin lock on the assumption that contention here is extremely rare.

TODO: Using a spin lock on every allocation can be quite expensive when contention is high. Since this is mainly used for BumpPtrAllocator and SpecificBumpPtrAllocator, it'd be better to have a specific thread-safe BumpPtrAllocator implementation that only use a fair lock when allocating a new slab but otherwise using atomic and be lock-free.

Definition at line 26 of file ThreadSafeAllocator.h.

Member Function Documentation

Allocate() [1/2]

template<class AllocatorType >

auto llvm::ThreadSafeAllocator< AllocatorType >::Allocate ( size_t  N )

inline

Definition at line 38 of file ThreadSafeAllocator.h.

References llvm::ThreadSafeAllocator< AllocatorType >::applyLocked(), and N.

Allocate() [2/2]

template<class AllocatorType >

auto llvm::ThreadSafeAllocator< AllocatorType >::Allocate ( size_t  Size, size_t  Align  )

inline

Definition at line 42 of file ThreadSafeAllocator.h.

References llvm::ThreadSafeAllocator< AllocatorType >::applyLocked(), and Size.

applyLocked()

template<class AllocatorType >

template<typename FnT , typename T = typename llvm::function_traits<FnT>::result_t>

T llvm::ThreadSafeAllocator< AllocatorType >::applyLocked ( FnT  Fn )

inline

Definition at line 50 of file ThreadSafeAllocator.h.

Referenced by llvm::ThreadSafeAllocator< AllocatorType >::Allocate().

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

• include/llvm/Support/ThreadSafeAllocator.h