#ifndef SYS_HORIZON___FIO_H_
#define SYS_HORIZON___FIO_H_

#define __FIO_BUFSZ 512

#if defined(__cplusplus)
extern "C" {
#endif

struct __io_file {
    char in_buf[__FIO_BUFSZ];
    char out_buf[__FIO_BUFSZ];
    unsigned long in_buf_ptr, in_buf_len;
    unsigned long out_buf_len;
    int fd, unget;
    char err, eof;
};

extern int __fileno(struct __io_file *f);
extern void __fio_init(int in, int out, int err);
extern unsigned int __fio_read(struct __io_file *f, char *buf, unsigned int sz);
extern unsigned int __fio_write(struct __io_file *f, const char *buf, unsigned int sz);
extern unsigned int __fio_flush(struct __io_file *f);
extern int __fio_error(struct __io_file *f);
extern int __fio_eof(struct __io_file *f);
extern int __fio_ungetc(struct __io_file *f, char c);

extern int __fio_fopen(const char *path, const char *mode, struct __io_file *out);
extern int __fio_fclose(struct __io_file *in);
extern int __fio_fdopen(int fd, const char *mode, struct __io_file *out);

#if defined(__cplusplus)
}
#endif

#endif