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/*
* Copyright � 2006-2016 SplinterGU (Fenix/Bennugd)
* Copyright � 2002-2006 Fenix Team (Fenix)
* Copyright � 1999-2002 Jos� Luis Cebri�n Pag�e (Fenix)
*
* This file is part of Bennu - Game Development
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "bgdc.h"
/* Fast access sysproc list, by identifier code */
SYSPROC ** sysproc_list = NULL ;
int sysproc_maxid = 0 ;
/* Este fichero contiene s�lo las definiciones de las funciones del sistema */
#define SYSMACRO(a) 0
#include "sysprocs.h"
/*
* FUNCTION : sysproc_init
*
* Initilize the module
*
* PARAMS:
* none
*
* RETURN VALUE:
* none
*/
void sysproc_init( void )
{
}
/*
* FUNCTION : sysproc_add
*
* Add a new system function to the internal system function list
*
* PARAMS:
* name Name of the process
* paramtypes String representation of the parameter
* type Type of the returning value
* func Pointer to the function itself or a stub
*
* RETURN VALUE:
* Identifier code allocated for the function
*/
int sysproc_add( char * name, char * paramtypes, int type, void * func )
{
static SYSPROC * sysproc_new = 0 ;
static int sysproc_maxcode = 0 ;
static int sysproc_count = 0 ;
if ( !sysproc_new )
{
sysproc_new = sysprocs ;
while ( sysproc_new->name )
{
if ( sysproc_new->code > sysproc_maxcode ) sysproc_maxcode = sysproc_new->code ;
sysproc_new++ ;
sysproc_count++ ;
}
}
if ( sysproc_count >= MAX_SYSPROCS ) compile_error( MSG_TOO_MANY_SYSPROCS ) ;
sysproc_maxcode++;
sysproc_new->code = sysproc_maxcode ;
sysproc_new->name = name ;
sysproc_new->paramtypes = paramtypes ;
sysproc_new->params = strlen( paramtypes ) ;
sysproc_new->type = type ;
sysproc_new->id = identifier_search_or_add( name ) ;
sysproc_new->next = NULL ;
sysproc_new++ ;
sysproc_count++ ;
/* If the fast-access list is already filled, free it to fill it again
* in sysproc_get. We should add the new process to the list, but this
* is a very rare possibility and we're lazy */
if ( sysproc_list != NULL )
{
free( sysproc_list );
sysproc_list = NULL;
sysproc_maxid = 0;
}
return sysproc_new->code ;
}
/*
* FUNCTION : sysproc_get
*
* Search for a system function by name and return a pointer
* to the first ocurrence or NULL if none exists
*
* PARAMS:
* id Unique code of the identifier of the name
*
* RETURN VALUE:
* Pointer to the SYSPROC object or NULL if none exists
*/
SYSPROC * sysproc_get( int id )
{
SYSPROC * s ;
/* If the table is filled, get the process with direct access */
if ( id < sysproc_maxid ) return sysproc_list[id];
/* Fill the table */
if ( sysproc_list == NULL )
{
/* Alloc IDs if necessary and get the maximum one */
for ( s = sysprocs ; s->name ; s++ )
{
if ( s->id == 0 ) s->id = identifier_search_or_add( s->name ) ;
if ( s->id > sysproc_maxid ) sysproc_maxid = s->id;
s->next = NULL;
}
/* Alloc the table */
sysproc_maxid = (( sysproc_maxid + 1 ) & ~31 ) + 32;
sysproc_list = ( SYSPROC ** ) calloc( sysproc_maxid, sizeof( SYSPROC * ) );
if ( sysproc_list == NULL ) abort();
/* Fill it */
for ( s = sysprocs ; s->name ; s++ )
{
if ( s->id > 0 )
{
s->next = sysproc_list[s->id];
sysproc_list[s->id] = s;
}
}
if ( id < sysproc_maxid ) return sysproc_list[id];
}
return NULL;
}
/*
* FUNCTION : sysproc_getall
*
* Search for a system function by name and return a pointer
* to a zero-terminated table with pointers to all ocurrences.
* Up to 31 occurences can be found with this function.
*
* PARAMS:
* id Unique code of the identifier of the name
*
* RETURN VALUE:
* Pointer to a new SYSPROC table allocated with malloc()
* NULL if no process with this id exists
*/
SYSPROC ** sysproc_getall( int id )
{
SYSPROC * s = sysproc_get( id ) ;
SYSPROC ** table;
int found = 0 ;
if ( s == NULL ) return NULL;
table = calloc( 32, sizeof( SYSPROC * ) ) ;
do
{
table[found++] = s;
s = s->next;
}
while ( s && found <= 31 );
table[found] = NULL;
return table ;
}
/*
* FUNCTION : sysproc_name
*
* Return the name of a given system function
*
* PARAMS:
* code Internal code of the function
*
* RETURN VALUE:
* Pointer to the name or NULL if it was not found
*/
/* ---------------------------------------------------------------------- */
char * sysproc_name( int code )
{
SYSPROC * s = sysprocs ;
while ( s->name )
{
if ( s->code == code ) return s->name ;
s++ ;
}
return 0 ;
}
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