78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
// Native code for VMClassLoader
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/* Copyright (C) 2002, 2003 Free Software Foundation
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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#include <config.h>
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#include <gcj/cni.h>
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#include <jvm.h>
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#include <gnu/gcj/runtime/VMClassLoader.h>
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#include <java/lang/Class.h>
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#include <java/lang/StringBuffer.h>
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#include <java/net/URLClassLoader.h>
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#include <java/lang/Runtime.h>
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#include <java/util/HashSet.h>
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jclass
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gnu::gcj::runtime::VMClassLoader::findClass (jstring name)
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{
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_Jv_Utf8Const *name_u = _Jv_makeUtf8Const (name);
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jclass klass = _Jv_FindClassInCache (name_u, 0);
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if (! klass && lib_control != LIB_NEVER)
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{
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// Turn `gnu.pkg.quux' into `lib-gnu-pkg-quux'. Then search for
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// a module named (eg, on Linux) `lib-gnu-pkg-quux.so', followed
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// by `lib-gnu-pkg.so' and `lib-gnu.so'. If loading one of
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// these causes the class to appear in the cache, then use it.
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java::lang::StringBuffer *sb = new java::lang::StringBuffer (JvNewStringLatin1("lib-"));
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// Skip inner classes
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jstring cn;
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jint ci = name->indexOf('$');
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if (ci == -1)
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cn = name;
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else
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cn = name->substring (0, ci);
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jstring so_base_name = (sb->append (cn)->toString ())->replace ('.', '-');
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using namespace ::java::lang;
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Runtime *rt = Runtime::getRuntime();
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// Compare against `3' because that is the length of "lib".
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while (! klass && so_base_name && so_base_name->length() > 3)
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{
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if (lib_control == LIB_CACHE)
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{
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// If we've already tried this name, we're done.
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if (tried_libraries->contains(so_base_name))
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break;
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tried_libraries->add(so_base_name);
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}
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jboolean loaded = rt->loadLibraryInternal (so_base_name);
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jint nd = so_base_name->lastIndexOf ('-');
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if (nd == -1)
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so_base_name = NULL;
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else
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so_base_name = so_base_name->substring (0, nd);
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if (loaded)
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klass = _Jv_FindClassInCache (name_u, 0);
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}
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}
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// Now try loading using the interpreter.
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if (! klass)
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klass = java::net::URLClassLoader::findClass (name);
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return klass;
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}
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