4 This file is part of PulseAudio.
6 Copyright 2004-2006 Lennart Poettering
8 PulseAudio is free software; you can redistribute it and/or modify
9 it under the terms of the GNU Lesser General Public License as
10 published by the Free Software Foundation; either version 2 of the
11 License, or (at your option) any later version.
13 PulseAudio is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public
19 License along with PulseAudio; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
31 #include <pulse/xmalloc.h>
33 #include <pulsecore/core-util.h>
34 #include <pulsecore/log.h>
38 #define PA_SYMBOL_AUTHOR "pa__get_author"
39 #define PA_SYMBOL_DESCRIPTION "pa__get_description"
40 #define PA_SYMBOL_USAGE "pa__get_usage"
41 #define PA_SYMBOL_VERSION "pa__get_version"
43 /* lt_dlsym() violates ISO C, so confide the breakage into this function to
45 typedef void (*fnptr)(void);
46 static inline fnptr lt_dlsym_fn(lt_dlhandle handle, const char *symbol) {
47 return (fnptr) (long) lt_dlsym(handle, symbol);
50 pa_modinfo *pa_modinfo_get_by_handle(lt_dlhandle dl) {
52 const char* (*func)(void);
55 i = pa_xnew0(pa_modinfo, 1);
57 if ((func = (const char* (*)(void)) lt_dlsym_fn(dl, PA_SYMBOL_AUTHOR)))
58 i->author = pa_xstrdup(func());
60 if ((func = (const char* (*)(void)) lt_dlsym_fn(dl, PA_SYMBOL_DESCRIPTION)))
61 i->description = pa_xstrdup(func());
63 if ((func = (const char* (*)(void)) lt_dlsym_fn(dl, PA_SYMBOL_USAGE)))
64 i->usage = pa_xstrdup(func());
66 if ((func = (const char* (*)(void)) lt_dlsym_fn(dl, PA_SYMBOL_VERSION)))
67 i->version = pa_xstrdup(func());
72 pa_modinfo *pa_modinfo_get_by_name(const char *name) {
77 if (!(dl = lt_dlopenext(name))) {
78 pa_log("Failed to open module \"%s\": %s", name, lt_dlerror());
82 i = pa_modinfo_get_by_handle(dl);
88 void pa_modinfo_free(pa_modinfo *i) {
91 pa_xfree(i->description);