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/* Remote target system call callback support.
Copyright 1997 Free Software Foundation, Inc.
This file is part of GDB.
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 2 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 CALLBACK_H
#define CALLBACK_H
#ifndef va_start
#include <ansidecl.h>
#ifdef ANSI_PROTOTYPES
#include <stdarg.h>
#else
#include <varargs.h>
#endif
#endif
typedef struct host_callback_struct host_callback;
#define MAX_CALLBACK_FDS 10
struct host_callback_struct
{
int (*close) PARAMS ((host_callback *,int));
int (*get_errno) PARAMS ((host_callback *));
int (*isatty) PARAMS ((host_callback *, int));
int (*lseek) PARAMS ((host_callback *, int, long , int));
int (*open) PARAMS ((host_callback *, const char*, int mode));
int (*read) PARAMS ((host_callback *,int, char *, int));
int (*read_stdin) PARAMS (( host_callback *, char *, int));
int (*rename) PARAMS ((host_callback *, const char *, const char *));
int (*system) PARAMS ((host_callback *, const char *));
long (*time) PARAMS ((host_callback *, long *));
int (*unlink) PARAMS ((host_callback *, const char *));
int (*write) PARAMS ((host_callback *,int, const char *, int));
int (*write_stdout) PARAMS ((host_callback *, const char *, int));
void (*flush_stdout) PARAMS ((host_callback *));
int (*write_stderr) PARAMS ((host_callback *, const char *, int));
void (*flush_stderr) PARAMS ((host_callback *));
/* When present, call to the client to give it the oportunity to
poll any io devices for a request to quit (indicated by a nonzero
return value). */
int (*poll_quit) PARAMS ((host_callback *));
/* Used when the target has gone away, so we can close open
handles and free memory etc etc. */
int (*shutdown) PARAMS ((host_callback *));
int (*init) PARAMS ((host_callback *));
/* depreciated, use vprintf_filtered - Talk to the user on a console. */
void (*printf_filtered) PARAMS ((host_callback *, const char *, ...));
/* Talk to the user on a console. */
void (*vprintf_filtered) PARAMS ((host_callback *, const char *, va_list));
/* Same as vprintf_filtered but to stderr. */
void (*evprintf_filtered) PARAMS ((host_callback *, const char *, va_list));
/* Print an error message and "exit".
In the case of gdb "exiting" means doing a longjmp back to the main
command loop. */
void (*error) PARAMS ((host_callback *, const char *, ...));
int last_errno; /* host format */
int fdmap[MAX_CALLBACK_FDS];
char fdopen[MAX_CALLBACK_FDS];
char alwaysopen[MAX_CALLBACK_FDS];
/* Marker for thse wanting to do sanity checks.
This should remain the last memeber of this struct to help catch
miscompilation errors. */
#define HOST_CALLBACK_MAGIC 4705 /* teds constant */
int magic;
};
extern host_callback default_callback;
/* Mapping of host/target values. */
/* ??? For debugging purposes, one might want to add a string of the
name of the symbol. */
typedef struct {
int host_val;
int target_val;
} target_defs_map;
extern target_defs_map errno_map[];
extern target_defs_map open_map[];
extern int host_to_target_errno PARAMS ((int));
extern int target_to_host_open PARAMS ((int));
#endif
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