d7087fdd3b
1. Change 'rt_uint8_t' type of cmd to 'int'; 2. Add waitqueue; 3. Split device ipc header files;
37 lines
536 B
C
37 lines
536 B
C
#ifndef PIPE_H__
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#define PIPE_H__
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/**
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* Pipe Device
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*/
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#include <rtthread.h>
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#include <rtdevice.h>
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#ifndef RT_PIPE_BUFSZ
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#define PIPE_BUFSZ 512
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#else
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#define PIPE_BUFSZ RT_PIPE_BUFSZ
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#endif
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struct rt_pipe_device
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{
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struct rt_device parent;
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/* ring buffer in pipe device */
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struct rt_ringbuffer *fifo;
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rt_uint8_t readers;
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rt_uint8_t writers;
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rt_wqueue_t reader_queue;
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rt_wqueue_t writer_queue;
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struct rt_mutex lock;
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};
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typedef struct rt_pipe_device rt_pipe_t;
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rt_pipe_t *rt_pipe_create(const char *name);
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#endif
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