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/* event.c: Debugger system variables
Copyright (c) 2016 Philip Kendall
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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Author contact information:
E-mail: philip-fuse@shadowmagic.org.uk
*/
#include <config.h>
#include <string.h>
#ifdef HAVE_STRINGS_STRCASECMP
#include <strings.h>
#endif /* #ifdef HAVE_STRINGS_STRCASECMP */
#ifdef HAVE_LIB_GLIB
#include <glib.h>
#endif /* #ifdef HAVE_LIB_GLIB */
#include <libspectrum.h>
#include "debugger_internals.h"
#include "fuse.h"
#include "ui/ui.h"
#include "utils.h"
typedef struct system_variable_t {
char *type;
char *detail;
debugger_get_system_variable_fn_t get;
debugger_set_system_variable_fn_t set;
} system_variable_t;
static GArray *system_variables;
void
debugger_system_variable_init( void )
{
system_variables = g_array_new( FALSE, FALSE, sizeof( system_variable_t ) );
}
void
debugger_system_variable_register( const char *type, const char *detail,
debugger_get_system_variable_fn_t get,
debugger_set_system_variable_fn_t set )
{
system_variable_t sysvar;
sysvar.type = utils_safe_strdup( type );
sysvar.detail = utils_safe_strdup( detail );
sysvar.get = get;
sysvar.set = set;
g_array_append_val( system_variables, sysvar );
}
static int
system_variable_matches( system_variable_t *sysvar, const char *type, const char *detail )
{
return strcasecmp( type, sysvar->type ) == 0 &&
strcasecmp( detail, sysvar->detail ) == 0;
}
static int
find_system_variable( const char *type, const char *detail, system_variable_t *out )
{
size_t i;
for( i = 0; i < system_variables->len; i++ ) {
system_variable_t sysvar =
g_array_index( system_variables, system_variable_t, i );
if( system_variable_matches( &sysvar, type, detail ) ) {
if( out != NULL ) *out = sysvar;
return i;
}
}
return -1;
}
int
debugger_system_variable_find( const char *type, const char *detail )
{
return find_system_variable( type, detail, NULL );
}
libspectrum_dword
debugger_system_variable_get( int system_variable )
{
system_variable_t sysvar =
g_array_index( system_variables, system_variable_t, system_variable );
return sysvar.get();
}
void
debugger_system_variable_set( const char *type, const char *detail,
libspectrum_dword value )
{
int index;
system_variable_t sysvar;
index = find_system_variable( type, detail, &sysvar );
if( index == -1 ) {
ui_error( UI_ERROR_ERROR, "Unknown system variable %s:%s", type, detail );
return;
}
if (sysvar.set == NULL) {
ui_error( UI_ERROR_ERROR, "System variable %s:%s cannot be set", type,
detail );
return;
}
sysvar.set( value );
}
void
debugger_system_variable_text( char *buffer, size_t length,
int system_variable )
{
system_variable_t sysvar =
g_array_index( system_variables, system_variable_t, system_variable );
snprintf( buffer, length, "%s:%s", sysvar.type, sysvar.detail );
}
/* Tidy-up function called at end of emulation */
void
debugger_system_variable_end( void )
{
int i;
system_variable_t sysvar;
if( !system_variables ) return;
for( i = 0; i < system_variables->len; i++ ) {
sysvar = g_array_index( system_variables, system_variable_t, i );
libspectrum_free( sysvar.detail );
libspectrum_free( sysvar.type );
}
g_array_free( system_variables, TRUE );
system_variables = NULL;
}
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