Roc Toolkit internal modules
Roc Toolkit: real-time audio streaming
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buffer_factory.h
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1/*
2 * Copyright (c) 2017 Roc Streaming authors
3 *
4 * This Source Code Form is subject to the terms of the Mozilla Public
5 * License, v. 2.0. If a copy of the MPL was not distributed with this
6 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
7 */
8
9//! @file roc_core/buffer_factory.h
10//! @brief Buffer factory.
11
12#ifndef ROC_CORE_BUFFER_FACTORY_H_
13#define ROC_CORE_BUFFER_FACTORY_H_
14
16#include "roc_core/buffer.h"
18#include "roc_core/shared_ptr.h"
19#include "roc_core/slab_pool.h"
20
21namespace roc {
22namespace core {
23
24//! Buffer factory.
25//! Allows to instantiate fixed-size buffers.
26//! @tparam T define buffer element type.
27template <class T> class BufferFactory : public core::NonCopyable<> {
28public:
29 //! Initialization.
30 //! @p buffer_size defines number of elements in buffer.
32 : buffer_pool_("buffer_pool", arena, sizeof(Buffer<T>) + sizeof(T) * buffer_size)
33 , buffer_size_(buffer_size) {
34 }
35
36 //! Get number of elements in buffer.
37 size_t buffer_size() const {
38 return buffer_size_;
39 }
40
41 //! Allocate new buffer.
43 return new (buffer_pool_) Buffer<T>(buffer_pool_, buffer_size_);
44 }
45
46private:
47 SlabPool<Buffer<T> > buffer_pool_;
48 const size_t buffer_size_;
49};
50
51} // namespace core
52} // namespace roc
53
54#endif // ROC_CORE_BUFFER_FACTORY_H_
Allocation policies.
Buffer.
Buffer factory. Allows to instantiate fixed-size buffers.
size_t buffer_size() const
Get number of elements in buffer.
BufferFactory(IArena &arena, size_t buffer_size)
Initialization. buffer_size defines number of elements in buffer.
SharedPtr< Buffer< T > > new_buffer()
Allocate new buffer.
Fixed-size dynamically-allocated buffer.
Definition buffer.h:35
Memory arena interface.
Definition iarena.h:23
Base class for non-copyable objects.
Definition noncopyable.h:23
Shared ownership intrusive pointer.
Definition shared_ptr.h:32
Root namespace.
Non-copyable object.
Shared ownership intrusive pointer.
Memory pool.