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// Native code for VMClassLoader
/* Copyright (C) 2002 Free Software Foundation
This file is part of libgcj.
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
#include <config.h>
#include <gcj/cni.h>
#include <jvm.h>
#include <gnu/gcj/runtime/VMClassLoader.h>
#include <java/lang/Class.h>
#include <java/lang/StringBuffer.h>
#include <java/net/URLClassLoader.h>
#include <java/lang/Runtime.h>
jclass
gnu::gcj::runtime::VMClassLoader::findClass (jstring name)
{
_Jv_Utf8Const *name_u = _Jv_makeUtf8Const (name);
jclass klass = _Jv_FindClassInCache (name_u, 0);
if (! klass)
{
// Turn `gnu.pkg.quux' into `lib-gnu-pkg-quux'. Then search for
// a module named (eg, on Linux) `lib-gnu-pkg-quux.so', followed
// by `lib-gnu-pkg.so' and `lib-gnu.so'. If loading one of
// these causes the class to appear in the cache, then use it.
java::lang::StringBuffer *sb = new java::lang::StringBuffer (JvNewStringLatin1("lib-"));
// Skip inner classes
jstring cn;
jint ci = name->indexOf('$');
if (ci == -1)
cn = name;
else
cn = name->substring (0, ci);
jstring so_base_name = (sb->append (cn)->toString ())->replace ('.', '-');
// Compare against `3' because that is the length of "lib".
while (! klass && so_base_name && so_base_name->length() > 3)
{
using namespace ::java::lang;
Runtime *rt = Runtime::getRuntime();
jboolean loaded = rt->loadLibraryInternal (so_base_name);
jint nd = so_base_name->lastIndexOf ('-');
if (nd == -1)
so_base_name = NULL;
else
so_base_name = so_base_name->substring (0, nd);
if (loaded)
klass = _Jv_FindClassInCache (name_u, 0);
}
}
// Now try loading using the interpreter.
if (! klass)
klass = java::net::URLClassLoader::findClass (name);
return klass;
}
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