varargs.h
/*
* Copyright (C) 2004 Jack O'Quin
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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 __jack_varargs_h__
#define __jack_varargs_h__
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include "types.h"
#ifdef __cplusplus
extern "C"
{
#endif
/* variable argument structure */
typedef struct {
char *server_name; /* server name */
char *load_name; /* load module name */
char *load_init; /* initialization string */
int session_id; /* requested session_id */
}
jack_varargs_t;
static const char* jack_default_server_name (void)
{
const char *server_name;
if ((server_name = getenv("JACK_DEFAULT_SERVER")) == NULL)
server_name = "default";
return server_name;
}
static inline void jack_varargs_init (jack_varargs_t *va)
{
memset (va, 0, sizeof(jack_varargs_t));
va->server_name = (char*)jack_default_server_name();
va->session_id = -1;
}
static inline void jack_varargs_parse (jack_options_t options, va_list ap, jack_varargs_t *va)
{
// initialize default settings
jack_varargs_init (va);
if ((options & JackServerName)) {
char *sn = va_arg(ap, char *);
if (sn)
va->server_name = sn;
}
if ((options & JackLoadName))
va->load_name = va_arg(ap, char *);
if ((options & JackLoadInit))
va->load_init = va_arg(ap, char *);
if ((options & JackSessionID)) {
char *sid = va_arg(ap, char *);
if (sid)
va->session_id = atoi( sid );
}
}
#ifdef __cplusplus
}
#endif
#endif /* __jack_varargs_h__ */
jack_varargs_t
Definition: varargs.h:34