90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
#ifndef PIPE_H_
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#define PIPE_H_
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#include <stdint.h>
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#include "ringbuffer.h"
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/* microsoft specific */
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#define inline __inline
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/* number of counts */
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#define PIPE_OUTPUT_COUNT 4
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typedef struct
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{
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ringbuffer_t * input;
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ringbuffer_t *output[PIPE_OUTPUT_COUNT];
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uint8_t output_count;
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} pipe_t;
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/***********************************/
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/* Functions to contruct pipe mesh */
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/***********************************/
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static inline void Pipe_Init(pipe_t * const p, ringbuffer_t * const arg_input)
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{
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p->input = arg_input;
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for (uint8_t i = 0; i < PIPE_OUTPUT_COUNT; i++)
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p->output[i] = NULL;
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p->output_count = 0;
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}
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static inline void Pipe_Connect(pipe_t * const a, pipe_t * const b)
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{
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a->output[a->output_count] = b->input;
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a->output_count++;
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}
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static inline void Pipe_AddOutput(pipe_t * const p, ringbuffer_t * const rb)
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{
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p->output[p->output_count] = rb;
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p->output_count++;
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}
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#define Concat2(a, b) a ## b
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#define Concat(a, b) Concat2(a, b)
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#define SizeOfArray(arg) ( sizeof(arg) / sizeof(arg[0]) )
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#define Pipe_Create(arg_name, arg_size) \
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static uint32_t Concat(buffer, __LINE__)[arg_size]; \
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ringbuffer_t arg_name ## _rb; \
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RingBuffer_InitFromArray(&arg_name ## _rb, Concat(buffer, __LINE__), SizeOfArray(Concat(buffer, __LINE__))); \
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pipe_t arg_name; \
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Pipe_Init(&arg_name, &arg_name ## _rb)
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#define Pipe_CreateOutput(arg_pipe, arg_name, arg_size) \
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static uint32_t Concat(buffer, __LINE__)[arg_size]; \
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ringbuffer_t arg_name; \
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RingBuffer_InitFromArray(&arg_name, Concat(buffer, __LINE__), SizeOfArray(Concat(buffer, __LINE__))); \
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Pipe_AddOutput(&arg_pipe, &arg_name);
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/************************************/
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/* Functions to work with pipe mesh */
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/************************************/
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static inline void Pipe_Insert(pipe_t * const p, uint32_t elem)
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{
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RingBuffer_Write(p->input, elem);
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}
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static inline uint32_t Pipe_Read(pipe_t * p)
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{
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return RingBuffer_Read(p->input);
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}
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static inline void Pipe_Write(pipe_t * p, uint32_t elem)
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{
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for (uint8_t i = 0; i < p->output_count; i++)
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RingBuffer_Write(p->output[i], elem);
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}
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static inline uint8_t Pipe_isFilled(pipe_t * p)
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{
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return RingBuffer_IsFilled(p->input);
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}
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#endif
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