/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
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 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#ifndef SHARE_MEMORY_METASPACE_CONSTANTS_HPP
#define SHARE_MEMORY_METASPACE_CONSTANTS_HPP

#include "utilities/globalDefinitions.hpp"
#include "memory/metaspace/chunkLevel.hpp"

namespace metaspace {

// Constants to be used throughout metaspace

namespace constants {

// Granularity, in bytes, metaspace is committed with.
static const size_t commit_granule_bytes = K * 64;
static const size_t commit_granule_words = commit_granule_bytes * BytesPerWord;


// Whether or not commit new-born chunks thru after creation.
static const bool newborn_chunks_are_fully_committed = true;

// When a chunk is handed out by the ChunkManager to a class loader, how much
// of a chunk should be committed up-front?
// Size in words. Must be a multiple of commit_granule_words.
// (Note: 0 is possible but inefficient, since it will cause the ClassLoaderMetaspace
//        to commit the first granule right away anyway, so nothing is saved.
//        chklvl::MAX_CHUNK_WORD_SIZE pretty much means every chunk is committed thru
//        from the start.
static const size_t committed_words_on_fresh_chunks = commit_granule_bytes * 2;

// The default size of a non-class VirtualSpaceNode (unless created differently).
// Must be a multiple of the root chunk size.
static const size_t virtual_space_node_default_size = chklvl::MAX_CHUNK_BYTE_SIZE * 4;

static const size_t allocation_from_dictionary_limit = 4 * K;

} // namespace constants

} // namespace metaspace

#endif // SHARE_MEMORY_METASPACE_BLOCKFREELIST_HPP