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/* This file is part of the program psim.
Copyright (C) 1994-1995,1998, Andrew Cagney <cagney@highland.com.au>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _SIM_CALLBACKS_H_
#define _SIM_CALLBACKS_H_
/* Simulator output:
Functions to report diagnostic information to the user. */
#define printf_filtered sim_io_printf_filtered
void sim_io_printf_filtered
(const char *msg, ...) __attribute__ ((format (printf, 1, 2)));
void NORETURN error
(const char *msg, ...);
/* External environment:
Some HOST OS's require regular polling so that external events such
as GUI io can be handled. */
void sim_io_poll_quit
(void);
/* Model I/O:
These functions provide the interface between the modeled targets
standard input and output streams and the hosts external
environment.
The underlying model is responsible for co-ordinating I/O
interactions such as:
main()
{
const char mess[] = "Hello World\r\n";
int out;
out = dup(1);
close(1);
write(out, mess, sizeof(mess))
}
That is to say, the underlying model would, in implementing dup()
recorded the fact that any output directed at fid-OUT should be
displayed using sim_io_write_stdout(). While for the code stub:
main()
{
const char mess[] = "Hello World\r\n";
int out;
close(1);
out = open("output", 0x0001|0x0200, 0); // write+create
out = dup(1);
write(out, mess, sizeof(mess))
}
would result in output to fid-1 being directed towards the file
"output". */
int
sim_io_write_stdout
(const char *buf,
int sizeof_buf);
int
sim_io_write_stderr
(const char *buf,
int sizeof_buf);
/* read results */
enum { sim_io_eof = -1, sim_io_not_ready = -2, }; /* See: IEEE 1275 */
int
sim_io_read_stdin
(char *buf,
int sizeof_buf);
#define flush_stdoutput sim_io_flush_stdoutput
void sim_io_flush_stdoutput
(void);
/* Simulator instance. */
extern psim *simulator;
/* Memory management with an allocator that clears memory before use. */
void *zalloc
(long size);
#define ZALLOC(TYPE) (TYPE*)zalloc(sizeof (TYPE))
#endif
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