Compute Library
 21.02
BlobMemoryPool.cpp
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1 /*
2  * Copyright (c) 2017-2020 Arm Limited.
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4  * SPDX-License-Identifier: MIT
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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  ARM_COMPUTE_ERROR_ON(!_allocator);
45  free_blobs();
46 }
47 
49 {
50  // Set memory to handlers
51  for(auto &handle : handles)
52  {
53  ARM_COMPUTE_ERROR_ON(handle.first == nullptr);
54  handle.first->set_region(_blobs[handle.second].get());
55  }
56 }
57 
59 {
60  for(auto &handle : handles)
61  {
62  ARM_COMPUTE_ERROR_ON(handle.first == nullptr);
63  handle.first->set_region(nullptr);
64  }
65 }
66 
68 {
69  return MappingType::BLOBS;
70 }
71 
72 std::unique_ptr<IMemoryPool> BlobMemoryPool::duplicate()
73 {
74  ARM_COMPUTE_ERROR_ON(!_allocator);
75  return std::make_unique<BlobMemoryPool>(_allocator, _blob_info);
76 }
77 
78 void BlobMemoryPool::allocate_blobs(const std::vector<BlobInfo> &blob_info)
79 {
80  ARM_COMPUTE_ERROR_ON(!_allocator);
81 
82  for(const auto &bi : blob_info)
83  {
84  _blobs.push_back(_allocator->make_region(bi.size, bi.alignment));
85  }
86 }
87 
88 void BlobMemoryPool::free_blobs()
89 {
90  _blobs.clear();
91 }
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.