76 lines
2 KiB
C++
76 lines
2 KiB
C++
// Copyright 2009-2020 Intel Corporation
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
#include "default.h"
|
|
|
|
namespace embree
|
|
{
|
|
/*! invokes the memory monitor callback */
|
|
struct MemoryMonitorInterface {
|
|
virtual void memoryMonitor(ssize_t bytes, bool post) = 0;
|
|
};
|
|
|
|
/*! allocator that performs aligned monitored allocations */
|
|
template<typename T, size_t alignment = 64>
|
|
struct aligned_monitored_allocator
|
|
{
|
|
typedef T value_type;
|
|
typedef T* pointer;
|
|
typedef const T* const_pointer;
|
|
typedef T& reference;
|
|
typedef const T& const_reference;
|
|
typedef std::size_t size_type;
|
|
typedef std::ptrdiff_t difference_type;
|
|
|
|
__forceinline aligned_monitored_allocator(MemoryMonitorInterface* device)
|
|
: device(device), hugepages(false) {}
|
|
|
|
__forceinline pointer allocate( size_type n )
|
|
{
|
|
if (n) {
|
|
assert(device);
|
|
device->memoryMonitor(n*sizeof(T),false);
|
|
}
|
|
if (n*sizeof(value_type) >= 14 * PAGE_SIZE_2M)
|
|
{
|
|
pointer p = (pointer) os_malloc(n*sizeof(value_type),hugepages);
|
|
assert(p);
|
|
return p;
|
|
}
|
|
return (pointer) alignedMalloc(n*sizeof(value_type),alignment);
|
|
}
|
|
|
|
__forceinline void deallocate( pointer p, size_type n )
|
|
{
|
|
if (p)
|
|
{
|
|
if (n*sizeof(value_type) >= 14 * PAGE_SIZE_2M)
|
|
os_free(p,n*sizeof(value_type),hugepages);
|
|
else
|
|
alignedFree(p);
|
|
}
|
|
else assert(n == 0);
|
|
|
|
if (n) {
|
|
assert(device);
|
|
device->memoryMonitor(-ssize_t(n)*sizeof(T),true);
|
|
}
|
|
}
|
|
|
|
__forceinline void construct( pointer p, const_reference val ) {
|
|
new (p) T(val);
|
|
}
|
|
|
|
__forceinline void destroy( pointer p ) {
|
|
p->~T();
|
|
}
|
|
|
|
private:
|
|
MemoryMonitorInterface* device;
|
|
bool hugepages;
|
|
};
|
|
|
|
/*! monitored vector */
|
|
template<typename T>
|
|
using mvector = vector_t<T,aligned_monitored_allocator<T,std::alignment_of<T>::value> >;
|
|
}
|