Line data    Source code

       1             : /**
       2             : Copyright (c) 2016-2022 Roman Katuntsev <sbkarr@stappler.org>
       3             : Copyright (c) 2023 Stappler LLC <admin@stappler.dev>
       4             : 
       5             : Permission is hereby granted, free of charge, to any person obtaining a copy
       6             : of this software and associated documentation files (the "Software"), to deal
       7             : in the Software without restriction, including without limitation the rights
       8             : to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
       9             : copies of the Software, and to permit persons to whom the Software is
      10             : furnished to do so, subject to the following conditions:
      11             : 
      12             : The above copyright notice and this permission notice shall be included in
      13             : all copies or substantial portions of the Software.
      14             : 
      15             : THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      16             : IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      17             : FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
      18             : AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      19             : LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
      20             : OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
      21             : THE SOFTWARE.
      22             : **/
      23             : 
      24             : #ifndef STAPPLER_CORE_IO_SPIOBUFFER_H_
      25             : #define STAPPLER_CORE_IO_SPIOBUFFER_H_
      26             : 
      27             : #include "SPIOCommon.h"
      28             : 
      29             : namespace STAPPLER_VERSIONIZED stappler::io {
      30             : 
      31             : struct Buffer {
      32             :         template <typename T, typename Traits = BufferTraits<T>> Buffer(T &t);
      33             : 
      34             :         uint8_t * prepare(size_t & size) const;
      35             :         void save(uint8_t *, size_t source, size_t nbytes) const;
      36             : 
      37             :         size_t capacity() const;
      38             :         size_t size() const;
      39             :         uint8_t *data() const;
      40             :         void clear() const;
      41             : 
      42             :         void *ptr = nullptr;
      43             :         prepare_fn prepare_ptr = nullptr;
      44             :         save_fn save_ptr = nullptr;
      45             :         size_fn size_ptr = nullptr;
      46             :         size_fn capacity_ptr = nullptr;
      47             :         data_fn data_ptr = nullptr;
      48             :         clear_fn clear_ptr = nullptr;
      49             : };
      50             : 
      51             : template <typename T, typename Traits>
      52      780244 : inline Buffer::Buffer(T &t)
      53      780244 : : ptr((void *)&t)
      54      780244 : , prepare_ptr(&Traits::PrepareFn)
      55      780244 : , save_ptr(&Traits::SaveFn)
      56      780244 : , size_ptr(&Traits::SizeFn)
      57      780244 : , capacity_ptr(&Traits::CapacityFn)
      58      780244 : , data_ptr(&Traits::DataFn)
      59      780244 : , clear_ptr(&Traits::ClearFn) { }
      60             : 
      61             : // reserve memory block in buffer
      62      642569 : inline uint8_t * Buffer::prepare(size_t & size) const { return prepare_ptr(ptr, size); }
      63      642569 : inline void Buffer::save(uint8_t *buf, size_t source, size_t nbytes) const { save_ptr(ptr, buf, source, nbytes); }
      64         125 : inline size_t Buffer::capacity() const { return capacity_ptr(ptr); }
      65      424775 : inline size_t Buffer::size() const { return size_ptr(ptr); }
      66      424775 : inline uint8_t *Buffer::data() const { return data_ptr(ptr); }
      67          25 : inline void Buffer::clear() const { clear_ptr(ptr); }
      68             : 
      69             : }
      70             : 
      71             : #endif /* STAPPLER_CORE_IO_SPIOBUFFER_H_ */