X-Git-Url: http://git.vrable.net/?a=blobdiff_plain;ds=sidebyside;f=metadata.cc;h=2b5f12ac51104004651b74d0318e716084973fd2;hb=38ae53bac981d564d9f04c038a88d727289db5c8;hp=f972b75999598e562c3ded4788b9b1550b12c47f;hpb=2f5d9b51edebfd70f0e427dfb27ecb496bf53fe0;p=cumulus.git diff --git a/metadata.cc b/metadata.cc index f972b75..2b5f12a 100644 --- a/metadata.cc +++ b/metadata.cc @@ -12,6 +12,7 @@ #include #include "metadata.h" +#include "localdb.h" #include "ref.h" #include "store.h" #include "util.h" @@ -24,7 +25,12 @@ using std::ostringstream; static const size_t LBS_METADATA_BLOCK_SIZE = 65536; +// If true, forces a full write of metadata: will not include pointers to +// metadata in old snapshots. +bool flag_full_metadata = false; + /* TODO: Move to header file */ +extern LocalDb *db; void add_segment(const string& segment); /* Like strcmp, but sorts in the order that files will be visited in the @@ -269,6 +275,13 @@ void MetadataWriter::metadata_flush() ObjectReference indirect; for (list::iterator i = items.begin(); i != items.end(); ++i) { + // If indirectly referencing any other metadata logs, be sure those + // segments are properly referenced. + if (i->reused) { + add_segment(i->ref.get_segment()); + db->UseSegment(i->ref.get_segment(), 1.0); + } + // Write out an indirect reference to any previous objects which could // be reused if (!i->reused || !indirect.merge(i->ref)) { @@ -315,6 +328,7 @@ void MetadataWriter::metadata_flush() ObjectReference ref = meta->get_ref(); metadata_root << "@" << ref.to_string() << "\n"; add_segment(ref.get_segment()); + db->UseSegment(ref.get_segment(), 1.0); delete meta; @@ -343,7 +357,7 @@ void MetadataWriter::add(dictionary info) item.reused = false; item.text += encode_dict(info) + "\n"; - if (info == old_metadata) { + if (info == old_metadata && !flag_full_metadata) { ObjectReference ref = ObjectReference::parse(old_metadata_loc); if (!ref.is_null()) { item.reused = true; @@ -369,6 +383,7 @@ ObjectReference MetadataWriter::close() root->write(store); root->checksum(); add_segment(root->get_ref().get_segment()); + db->UseSegment(root->get_ref().get_segment(), 1.0); ObjectReference ref = root->get_ref(); delete root;