Compute Library
 21.11
BlobMemoryPool.cpp
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2  * Copyright (c) 2017-2021 Arm Limited.
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25 
26 #include "arm_compute/core/Error.h"
30 
31 #include <vector>
32 
33 using namespace arm_compute;
34 
35 BlobMemoryPool::BlobMemoryPool(IAllocator *allocator, std::vector<BlobInfo> blob_info)
36  : _allocator(allocator), _blobs(), _blob_info(std::move(blob_info))
37 {
38  ARM_COMPUTE_ERROR_ON(!allocator);
39  allocate_blobs(_blob_info);
40 }
41 
43 {
44  free_blobs();
45 }
46 
48 {
49  // Set memory to handlers
50  for(auto &handle : handles)
51  {
52  ARM_COMPUTE_ERROR_ON(handle.first == nullptr);
53  handle.first->set_region(_blobs[handle.second].get());
54  }
55 }
56 
58 {
59  for(auto &handle : handles)
60  {
61  ARM_COMPUTE_ERROR_ON(handle.first == nullptr);
62  handle.first->set_region(nullptr);
63  }
64 }
65 
67 {
68  return MappingType::BLOBS;
69 }
70 
71 std::unique_ptr<IMemoryPool> BlobMemoryPool::duplicate()
72 {
73  ARM_COMPUTE_ERROR_ON(!_allocator);
74  return std::make_unique<BlobMemoryPool>(_allocator, _blob_info);
75 }
76 
77 void BlobMemoryPool::allocate_blobs(const std::vector<BlobInfo> &blob_info)
78 {
79  ARM_COMPUTE_ERROR_ON(!_allocator);
80 
81  for(const auto &bi : blob_info)
82  {
83  _blobs.push_back(_allocator->make_region(bi.size, bi.alignment));
84  }
85 }
86 
87 void BlobMemoryPool::free_blobs()
88 {
89  _blobs.clear();
90 }
MappingType mapping_type() const override
Returns the mapping types that this pool accepts.
~BlobMemoryPool()
Default Destructor.
#define ARM_COMPUTE_ERROR_ON(cond)
If the condition is true then an error message is printed and an exception thrown.
Definition: Error.h:466
Copyright (c) 2017-2021 Arm Limited.
Mappings are in blob granularity.
MappingType
Mapping type.
Definition: Types.h:34
void acquire(MemoryMappings &handles) override
Sets occupant to the memory pool.
std::unique_ptr< IMemoryPool > duplicate() override
Duplicates the existing memory pool.
input allocator() -> allocate()
virtual std::unique_ptr< IMemoryRegion > make_region(size_t size, size_t alignment)=0
Create self-managed memory region.
std::map< IMemory *, size_t > MemoryMappings
A map of (handle, index/offset), where handle is the memory handle of the object to provide the memor...
Definition: Types.h:45
Allocator interface.
Definition: IAllocator.h:35
BlobMemoryPool(IAllocator *allocator, std::vector< BlobInfo > blob_info)
Default Constructor.
void release(MemoryMappings &handles) override
Releases a memory block.