big s/polyp/pulse/g

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1033 fefdeb5f-60dc-0310-8127-8f9354f1896f

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);
+}