121 lines
2.6 KiB
C
121 lines
2.6 KiB
C
#include <stdio.h>
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#include <stdint.h>
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#include "ringbuffer.h"
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#include "pipe.h"
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void increment(pipe_t * const p)
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{
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while (Pipe_isFilled(p))
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{
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uint32_t item = Pipe_Read(p);
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item++;
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Pipe_Write(p, item);
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}
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}
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void square(pipe_t * const p)
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{
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while (Pipe_isFilled(p))
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{
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uint32_t item = Pipe_Read(p);
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item = item * item;
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Pipe_Write(p, item);
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}
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}
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void integrate(pipe_t * const p)
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{
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uint32_t * state = p->state;
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while (Pipe_isFilled(p))
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{
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uint32_t item = Pipe_Read(p);
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*state = *state + item;
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Pipe_Write(p, *state);
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}
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}
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void sum(pipe_t * const p)
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{
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uint32_t sum = 0;
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while (Pipe_isFilled(p))
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sum += Pipe_Read(p);
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Pipe_Write(p, sum);
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}
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void average(pipe_t * const p)
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{
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uint32_t sum = 0;
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uint32_t element_counter = 0;
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uint32_t average = 0;
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while (Pipe_isFilled(p))
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{
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sum += Pipe_Read(p);
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element_counter++;
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}
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average = sum / element_counter;
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Pipe_Write(p, average);
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}
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void print(pipe_t * const p)
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{
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printf("\nOutput:\n");
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while (Pipe_isFilled(p))
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printf("%d\n", Pipe_Read(p));
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}
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void log(pipe_t * const from, pipe_t * const to, uint32_t elem)
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{
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if (from->state == NULL && to->state == NULL)
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printf("%s -> %d -> %s\n", from->name, elem, to->name);
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else if (from->state != NULL && to->state != NULL)
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printf("%s(%d) -> %d -> %s(%d)\n", from->name, *((uint32_t*)from->state), elem, to->name, *((uint32_t*)to->state));
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else if (from->state != NULL)
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printf("%s(%d) -> %d -> %s\n", from->name, *((uint32_t*)from->state), elem, to->name);
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else
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printf("%s -> %d -> %s(%d)\n", from->name, elem, to->name, *((uint32_t*)to->state));
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}
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int main(void)
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{
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uint32_t counter = 0;
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/* Create pipes and connect them */
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Pipe_Create(increment_pipe, NULL, 4, log);
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Pipe_Create(square_pipe, NULL, 4, log);
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Pipe_Create(integrate_pipe, &counter, 8, log);
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Pipe_Create(sum_pipe, NULL, 8, log);
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Pipe_Create(average_pipe, NULL, 8, log);
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Pipe_Create(print_pipe, NULL, 4, log);
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Pipe_Connect(&increment_pipe, &integrate_pipe);
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Pipe_Connect(&square_pipe, &integrate_pipe);
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Pipe_Connect(&integrate_pipe, &sum_pipe);
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Pipe_Connect(&integrate_pipe, &average_pipe);
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Pipe_Connect(&sum_pipe, &print_pipe);
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Pipe_Connect(&average_pipe, &print_pipe);
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/* Generate input */
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Pipe_Insert(&increment_pipe, 1);
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Pipe_Insert(&increment_pipe, 3);
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Pipe_Insert(&increment_pipe, 5);
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Pipe_Insert(&square_pipe, 2);
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Pipe_Insert(&square_pipe, 4);
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Pipe_Insert(&square_pipe, 6);
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/* run the functions (each can run in an own thread) */
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increment(&increment_pipe);
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square(&square_pipe);
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integrate(&integrate_pipe);
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sum(&sum_pipe);
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average(&average_pipe);
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print(&print_pipe);
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getchar();
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return 0;
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}
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