/home/pedro/work/mdcore/src/fifo.c File Reference

#include "../config.h"
#include <stdlib.h>
#include <stdio.h>
#include <pthread.h>
#include <math.h>
#include <float.h>
#include <string.h>
#include <limits.h>
#include "cycle.h"
#include "errs.h"
#include "fifo.h"

Defines
#define	error(id)   ( fifo_err = errs_register( id , fifo_err_msg[-(id)] , __LINE__ , __FUNCTION__ , __FILE__ ) )
Functions
int	fifo_push_nb (struct fifo *f, int e)
	Add an element to the fifo, non-blocking.
int	fifo_pop_nb (struct fifo *f, int *e)
	Remove an element from the fifo, non-blocking.
int	fifo_push (struct fifo *f, int e)
	Add an element to the fifo, blocking.
int	fifo_pop (struct fifo *f, int *e)
	Remove an element from the fifo, blocking.
int	fifo_init (struct fifo *f, int size)
	Initialize the given fifo.
Variables
int	fifo_err = fifo_err_ok
char *	fifo_err_msg [6]

---

Define Documentation

#define error

(

id

)

( fifo_err = errs_register( id , fifo_err_msg[-(id)] , __LINE__ , __FUNCTION__ , __FILE__ ) )

---

Function Documentation

int fifo_init	(	struct fifo *	f,
		int	size
	)

Initialize the given fifo.

Parameters:

f	The fifo
size	The number of entries

Returns:

fifo_err_ok or < 0 on error (see fifo_err).

int fifo_pop	(	struct fifo *	f,
		int *	e
	)

Remove an element from the fifo, blocking.

Parameters:

f	The fifo
e	Pointer to the popped element.

Returns:

The new number of entries or < 0 on error (see fifo_err).

int fifo_pop_nb	(	struct fifo *	f,
		int *	e
	)

Remove an element from the fifo, non-blocking.

Parameters:

f	The fifo
e	Pointer to the popped element.

Returns:

The new number of entries or < 0 on error (see fifo_err).

int fifo_push	(	struct fifo *	f,
		int	e
	)

Add an element to the fifo, blocking.

Parameters:

f	The fifo
e	The entry to add.

Returns:

The new number of entries or < 0 on error (see fifo_err).

int fifo_push_nb	(	struct fifo *	f,
		int	e
	)

Add an element to the fifo, non-blocking.

Parameters:

f	The fifo
e	The entry to add.

Returns:

The new number of entries or < 0 on error (see fifo_err).

---

Variable Documentation

int fifo_err = fifo_err_ok

The ID of the last error.

char* fifo_err_msg[6]

Initial value:

 {
        "Nothing bad happened.",
    "An unexpected NULL pointer was encountered.",
    "A call to malloc failed, probably due to insufficient memory.",
    "A call to a pthread routine failed.",
    "Tried to push onto a full FIFO-queue." ,
    "Tried to pop from an empty FIFO-queue." 
        }