#ifndef __IO_H__
#define __IO_H__

#include <stdio.h>
#include "corelist.h"
#include "process.h"

enum {
    FS_STREAM,
    SOCKET_STREAM,
    PIPE_STREAM,
    STREAM_DATA,
}stream_type;


typedef struct
{
    int id;
    int type;
    int fd;
    int mode;
    int (*ioctl)(int fd, int command, va_list va);
    ssize_t (*read)(int fd, void *data, size_t size);
    ssize_t (*write)(int fd, const void *data, size_t size);
    off_t (*lseek)(int fd, off_t offset, int whence);
    int (*flush)(int fd);
    int (*close)(int fd);

    short pid;
} idStream;

#ifdef __cplusplus
extern "C" {
#endif


int open_fd();
int close_fd(int fd);
idStream *getStreamData(int pid, int fd);

static inline int getStreamHandle(int fd) {
    idStream *is = getStreamData(getpid(), fd);
    if(!is)
        return -1;

    return is->fd;
}

ssize_t read(int fd, void *buf, size_t len);
ssize_t write(int fd, const void *buf, size_t len);
off_t lseek(int fd, off_t offset, int whence);
int flush(int fd);
int close(int fd);
int ioctl(int fd, int command, ...);

#ifdef __cplusplus
}
#endif

#endif