NetBSD/gnu/dist/sim/ppc/cap.c

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/* This file is part of the program psim.
Copyright (C) 1994-1995, 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 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 _CAP_C_
#define _CAP_C_
#include "cap.h"
typedef struct _cap_mapping cap_mapping;
struct _cap_mapping {
unsigned32 external;
void *internal;
cap_mapping *next;
};
struct _cap {
int nr_mappings;
cap_mapping *mappings;
};
INLINE_CAP\
(cap *)
cap_create(const char *key)
{
return ZALLOC(cap);
}
INLINE_CAP\
(void)
cap_init(cap *map)
{
cap_mapping *current_mapping = map->mappings;
while (current_mapping != NULL) {
cap_mapping *tbd = current_mapping;
current_mapping = tbd->next;
zfree(tbd);
}
map->nr_mappings = 0;
map->mappings = (cap_mapping*)0;
}
INLINE_CAP\
(void *)
cap_internal(cap *db,
signed32 external)
{
cap_mapping *current_map = db->mappings;
while (current_map != NULL) {
if (current_map->external == external)
return current_map->internal;
current_map = current_map->next;
}
return (void*)0;
}
INLINE_CAP\
(signed32)
cap_external(cap *db,
void *internal)
{
cap_mapping *current_map = db->mappings;
while (current_map != NULL) {
if (current_map->internal == internal)
return current_map->external;
current_map = current_map->next;
}
current_map = ZALLOC(cap_mapping);
current_map->next = db->mappings;
current_map->internal = internal;
db->nr_mappings += 1;
current_map->external = db->nr_mappings;
db->mappings = current_map;
return current_map->external;
}
#endif