diff options
author | Lennart Poettering <lennart@poettering.net> | 2006-06-19 21:53:48 +0000 |
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committer | Lennart Poettering <lennart@poettering.net> | 2006-06-19 21:53:48 +0000 |
commit | f44ba092651aa75055e109e04b4164ea92ae7fdc (patch) | |
tree | 5dfe076191b32946e78edf64d584d0a65f320013 /src/pulsecore/modinfo.c | |
parent | dd21f11deda64e65a6f75817496534c2c9dda1a8 (diff) |
big s/polyp/pulse/g
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1033 fefdeb5f-60dc-0310-8127-8f9354f1896f
Diffstat (limited to 'src/pulsecore/modinfo.c')
-rw-r--r-- | src/pulsecore/modinfo.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/src/pulsecore/modinfo.c b/src/pulsecore/modinfo.c new file mode 100644 index 00000000..adefdb46 --- /dev/null +++ b/src/pulsecore/modinfo.c @@ -0,0 +1,93 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + 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 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, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <ltdl.h> +#include <assert.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/core-util.h> +#include <pulsecore/log.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" + +/* lt_dlsym() violates ISO C, so confide the breakage into this function to + * avoid warnings. */ +typedef void (*fnptr)(void); +static inline fnptr lt_dlsym_fn(lt_dlhandle handle, const char *symbol) { + return (fnptr) (long) lt_dlsym(handle, symbol); +} + +pa_modinfo *pa_modinfo_get_by_handle(lt_dlhandle dl) { + pa_modinfo *i; + const char* (*func)(void); + assert(dl); + + i = pa_xnew0(pa_modinfo, 1); + + if ((func = (const char* (*)(void)) lt_dlsym_fn(dl, PA_SYMBOL_AUTHOR))) + i->author = pa_xstrdup(func()); + + if ((func = (const char* (*)(void)) lt_dlsym_fn(dl, PA_SYMBOL_DESCRIPTION))) + i->description = pa_xstrdup(func()); + + if ((func = (const char* (*)(void)) lt_dlsym_fn(dl, PA_SYMBOL_USAGE))) + i->usage = pa_xstrdup(func()); + + if ((func = (const char* (*)(void)) lt_dlsym_fn(dl, PA_SYMBOL_VERSION))) + i->version = pa_xstrdup(func()); + + return i; +} + +pa_modinfo *pa_modinfo_get_by_name(const char *name) { + lt_dlhandle dl; + pa_modinfo *i; + assert(name); + + if (!(dl = lt_dlopenext(name))) { + pa_log(__FILE__": Failed to open module \"%s\": %s", name, lt_dlerror()); + return NULL; + } + + i = pa_modinfo_get_by_handle(dl); + lt_dlclose(dl); + + return i; +} + +void pa_modinfo_free(pa_modinfo *i) { + assert(i); + pa_xfree(i->author); + pa_xfree(i->description); + pa_xfree(i->usage); + pa_xfree(i->version); + pa_xfree(i); +} |