queue.h

Go to the documentation of this file.

 
#ifndef _QUEUE_H_
#define _QUEUE_H_
 
// Named address space
#ifndef MEMSPACE
#define MEMSPACE                                  
#endif
 
#define QUEUE_OVERRUN       1
#define QUEUE_EOL           2
 
typedef struct
{
    char *buf;                                    /* Ring buffer */
    uint8_t flags;                                /* flags */
    size_t in;                                    /* input offset */
    size_t out;                                   /* output offset */
    size_t bytes;                                 /* bytes used */
    size_t size;                                  /* Ring buffer size */
} queue_t;
 
/* queue.c */
queue_t *queue_new ( size_t size );
void queue_del ( queue_t *q );
void queue_flush ( queue_t *q );
size_t queue_used ( queue_t *q );
size_t queue_empty ( queue_t *q );
size_t queue_space ( queue_t *q );
size_t queue_full ( queue_t *q );
size_t queue_push_buffer ( queue_t *q , uint8_t *src , size_t size );
size_t queue_pop_buffer ( queue_t *q , uint8_t *dst , size_t size );
int queue_pushc ( queue_t *q , uint8_t c );
int queue_popc ( queue_t *q );
#endif