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- /*
- The MIT License (MIT)
-
- Copyright (c) 2016 Fred Sundvik
-
- Permission is hereby granted, free of charge, to any person obtaining a copy
- of this software and associated documentation files (the "Software"), to deal
- in the Software without restriction, including without limitation the rights
- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- copies of the Software, and to permit persons to whom the Software is
- furnished to do so, subject to the following conditions:
-
- The above copyright notice and this permission notice shall be included in all
- copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- SOFTWARE.
- */
-
- #pragma once
-
- #include <stdint.h>
-
- typedef struct {
- uint8_t state;
- uint8_t buffer[] __attribute__((aligned(4)));
- } triple_buffer_object_t;
-
- void triple_buffer_init(triple_buffer_object_t* object);
-
- #define triple_buffer_begin_write(object) (typeof(*object.buffer[0])*)triple_buffer_begin_write_internal(sizeof(*object.buffer[0]), (triple_buffer_object_t*)object)
-
- #define triple_buffer_end_write(object) triple_buffer_end_write_internal((triple_buffer_object_t*)object)
-
- #define triple_buffer_read(object) (typeof(*object.buffer[0])*)triple_buffer_read_internal(sizeof(*object.buffer[0]), (triple_buffer_object_t*)object)
-
- void* triple_buffer_begin_write_internal(uint16_t object_size, triple_buffer_object_t* object);
- void triple_buffer_end_write_internal(triple_buffer_object_t* object);
- void* triple_buffer_read_internal(uint16_t object_size, triple_buffer_object_t* object);
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