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[jack2.git] / common / varargs.h
blob24fa7d6ea312b7db68abfae87be3cae5a817a8f4
1 /*
2 * Copyright (C) 2004 Jack O'Quin
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU Lesser General Public License as published by
6 * the Free Software Foundation; either version 2.1 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 #ifndef __jack_varargs_h__
21 #define __jack_varargs_h__
23 #include <stdlib.h>
24 #include <stdarg.h>
25 #include <string.h>
26 #include "types.h"
28 #ifdef __cplusplus
29 extern "C"
31 #endif
33 /* variable argument structure */
34 typedef struct {
35 char *server_name; /* server name */
36 char *load_name; /* load module name */
37 char *load_init; /* initialization string */
38 jack_uuid_t session_id; /* requested session_id */
40 jack_varargs_t;
42 static const char* jack_default_server_name (void)
44 const char *server_name;
45 if ((server_name = getenv("JACK_DEFAULT_SERVER")) == NULL)
46 server_name = "default";
47 return server_name;
50 static inline void jack_varargs_init (jack_varargs_t *va)
52 memset (va, 0, sizeof(jack_varargs_t));
53 va->server_name = (char*)jack_default_server_name();
56 static inline void jack_varargs_parse (jack_options_t options, va_list ap, jack_varargs_t *va)
58 // initialize default settings
59 jack_varargs_init (va);
61 if ((options & JackServerName)) {
62 char *sn = va_arg(ap, char *);
63 if (sn)
64 va->server_name = sn;
66 if ((options & JackLoadName))
67 va->load_name = va_arg(ap, char *);
68 if ((options & JackLoadInit))
69 va->load_init = va_arg(ap, char *);
70 if ((options & JackSessionID)) {
71 char *sid = va_arg(ap, char *);
72 if (sid) {
73 const long long id = atoll( sid );
74 if (id > 0)
75 va->session_id = id;
80 #ifdef __cplusplus
82 #endif
84 #endif /* __jack_varargs_h__ */