fdesc.h

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/*
** fdesc.h for lseos in lseos-lib/libc/posix
** 
** Copyright (c)2004 Vianney Rancurel
** Login   <vianney@epita.fr>
** 
** Started on  Tue May  4 17:13:58 2004 Vianney Rancurel
** Last update Mon Nov 29 18:59:31 2004 Vianney Rancurel
*/
#ifndef __POSIX_FDESC_H__
#define __POSIX_FDESC_H__       1
#include <libc.h>

struct iovec 
{
  void                          *iov_base;     /* Base address. */
  size_t                        iov_len;       /* Length. */
};

typedef struct                  s_fshare
{
  int                           gate;           
  int                           gate_id;        
}                               t_fshare;

#define FDESCOPT_NOCACHE        (1<<0u)

typedef enum
  {
    FDESC_NOT_IN_LTABLE = 100,
    FDESC_NOT_AVAIL,
    FDESC_BAD_REFCNT,
    FDESC_PROP_FETCH,
    FDESC_PROP_STORE,
    FDESC_PROP_DELETE,
    FDESC_PROP_ATTACH,
    FDESC_PROP_DETACH,
  } t_fdesc_suberrno_codes;

/* PROTO fdesc.c */
/* fdesc.c */
void fdesc_init(void);
void fdesc_cache_invalidate(void);
void fdesc_cache_add(int fd, t_fshare *fshare, int refcnt);
int fdesc_cache_get(int fd, t_fshare *fshare, int *refcnt);
void fdesc_cache_dump(void);
t_fdesc *fdesc_get_i(int fd);
int fshare_get(resid_t resid, t_fshare *fshare, int *refcnt);
int fdesc_get(int d, u_int32_t fdescopts, t_fdesc **fdesc, t_fshare *fshare, int *refcnt, char *s);
int fdesc_nextd(int from);
int fshare_add(resid_t *resid, int gate, int gate_id, mode_t perm);
int fshare_rm(resid_t resid);
int fdesc_add(int d, resid_t resid, int statusfl, int fl);
int fdesc_rm(t_fdesc *fdesc, t_fshare *fshare, int refcnt);
void fdesc_dump(void);
#endif

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