/*
 * io.h
 *
 * Communication between PSSE and the outside world, via libcurl.
 *
 * (c) 2019 Simon Brooke <simon@journeyman.cc>
 * Licensed under GPL version 2.0, or, at your option, any later version.
 */

#ifndef __psse_io_io_h
#define __psse_io_io_h
#include <curl/curl.h>

#include "memory/pointer.h"
#include "memory/pso2.h"
#include "memory/pso4.h"

extern CURLSH *io_share;

int initialise_io(  );

#define C_IO_IN L"*in*"
#define C_IO_OUT L"*out*"

extern struct pso_pointer lisp_io_in;
extern struct pso_pointer lisp_io_out;

URL_FILE *file_to_url_file( FILE * f );
wint_t url_fgetwc( URL_FILE * input );
wint_t url_ungetwc( wint_t wc, URL_FILE * input );

struct pso_pointer get_character( struct pso_pointer read_stream );

struct pso_pointer push_back_character( struct pso_pointer c,
                                        struct pso_pointer r );

struct pso_pointer get_default_stream( bool inputp, struct pso_pointer env );

struct pso_pointer
lisp_close( struct pso_pointer frame_pointer, struct pso_pointer env );
struct pso_pointer
lisp_open( struct pso_pointer frame_pointer, struct pso_pointer env );
struct pso_pointer
lisp_read_char( struct pso_pointer frame_pointer, struct pso_pointer env );
struct pso_pointer
lisp_slurp( struct pso_pointer frame_pointer, struct pso_pointer env );

char *lisp_string_to_c_string( struct pso_pointer s );
#endif