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/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
PulseAudio 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.
PulseAudio 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 Lesser General Public
License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <ltdl.h>
#include <pulse/xmalloc.h>
#include <pulsecore/log.h>
#include <pulsecore/macro.h>
#include <pulsecore/ltdl-helper.h>
#include "modinfo.h"
#define PA_SYMBOL_AUTHOR "pa__get_author"
#define PA_SYMBOL_DESCRIPTION "pa__get_description"
#define PA_SYMBOL_USAGE "pa__get_usage"
#define PA_SYMBOL_VERSION "pa__get_version"
#define PA_SYMBOL_DEPRECATED "pa__get_deprecated"
#define PA_SYMBOL_LOAD_ONCE "pa__load_once"
pa_modinfo *pa_modinfo_get_by_handle(lt_dlhandle dl, const char *module_name) {
pa_modinfo *i;
const char* (*func)(void);
bool (*func2) (void);
pa_assert(dl);
i = pa_xnew0(pa_modinfo, 1);
if ((func = (const char* (*)(void)) pa_load_sym(dl, module_name, PA_SYMBOL_AUTHOR)))
i->author = pa_xstrdup(func());
if ((func = (const char* (*)(void)) pa_load_sym(dl, module_name, PA_SYMBOL_DESCRIPTION)))
i->description = pa_xstrdup(func());
if ((func = (const char* (*)(void)) pa_load_sym(dl, module_name, PA_SYMBOL_USAGE)))
i->usage = pa_xstrdup(func());
if ((func = (const char* (*)(void)) pa_load_sym(dl, module_name, PA_SYMBOL_VERSION)))
i->version = pa_xstrdup(func());
if ((func = (const char* (*)(void)) pa_load_sym(dl, module_name, PA_SYMBOL_DEPRECATED)))
i->deprecated = pa_xstrdup(func());
if ((func2 = (bool (*)(void)) pa_load_sym(dl, module_name, PA_SYMBOL_LOAD_ONCE)))
i->load_once = func2();
return i;
}
pa_modinfo *pa_modinfo_get_by_name(const char *name) {
lt_dlhandle dl;
pa_modinfo *i;
pa_assert(name);
if (!(dl = lt_dlopenext(name))) {
pa_log("Failed to open module \"%s\": %s", name, lt_dlerror());
return NULL;
}
i = pa_modinfo_get_by_handle(dl, name);
lt_dlclose(dl);
return i;
}
void pa_modinfo_free(pa_modinfo *i) {
pa_assert(i);
pa_xfree(i->author);
pa_xfree(i->description);
pa_xfree(i->usage);
pa_xfree(i->version);
pa_xfree(i->deprecated);
pa_xfree(i);
}
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