amxc_rbuffer.c File Reference

Ambiorix ring buffer API implementation. More...

#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <amxc/amxc_rbuffer.h>
#include <amxc/amxc_macros.h>

Go to the source code of this file.

Functions
static char *	amxc_rbuffer_alloc (amxc_rbuffer_t *const rb, const size_t size)
int	amxc_rbuffer_new (amxc_rbuffer_t **rb, const size_t size)
	Allocates a ring buffer. More...
void	amxc_rbuffer_delete (amxc_rbuffer_t **rb)
	Frees the previously allocated ring buffer. More...
int	amxc_rbuffer_init (amxc_rbuffer_t *const rb, const size_t size)
	Initializes a ring buffer. More...
void	amxc_rbuffer_clean (amxc_rbuffer_t *const rb)
	Frees the buffer and sets all pointers of the ring buffer structure to NULL. More...
int	amxc_rbuffer_grow (amxc_rbuffer_t *const rb, const size_t size)
	Grows the ring buffer. More...
int	amxc_rbuffer_shrink (amxc_rbuffer_t *const rb, const size_t size)
	Shrinks the ring buffer. More...
ssize_t	amxc_rbuffer_read (amxc_rbuffer_t *const rb, char *const buf, size_t count)
	Reads a number of bytes from the ring buffer. More...
ssize_t	amxc_rbuffer_write (amxc_rbuffer_t *const rb, const char *const buf, const size_t count)
	Writes a number of bytes to the ring buffer. More...
size_t	amxc_rbuffer_size (const amxc_rbuffer_t *const rb)
	Get the size of the data stored in the ring buffer. More...

Detailed Description

Ambiorix ring buffer API implementation.

Definition in file amxc_rbuffer.c.

Function Documentation

amxc_rbuffer_alloc()

static char* amxc_rbuffer_alloc ( amxc_rbuffer_t *const  rb, const size_t  size  )

static

Definition at line 62 of file amxc_rbuffer.c.

                                                                             {
    char* buffer = NULL;
    if(rb->buffer_start == NULL) {
        buffer = (char*) calloc(1, size);
    } else {
        buffer = (char*) realloc(rb->buffer_start, size);
    }
 
    return buffer;
}