era_check, era_dump

era/metadata.cc

@@ -0,0 +1,60 @@
+#include "era/metadata.h"
+#include "persistent-data/space-maps/core.h"
+
+using namespace era;
+
+//----------------------------------------------------------------
+
+namespace {
+	unsigned const METADATA_CACHE_SIZ = 1024;
+
+	// FIXME: duplication
+	transaction_manager::ptr
+	open_tm(block_manager<>::ptr bm) {
+		space_map::ptr sm(new core_map(bm->get_nr_blocks()));
+		sm->inc(SUPERBLOCK_LOCATION);
+		transaction_manager::ptr tm(new transaction_manager(bm, sm));
+		return tm;
+	}
+
+	void
+	copy_space_maps(space_map::ptr lhs, space_map::ptr rhs) {
+		for (block_address b = 0; b < rhs->get_nr_blocks(); b++) {
+			uint32_t count = rhs->get_count(b);
+			if (count > 0)
+				lhs->set_count(b, rhs->get_count(b));
+		}
+	}
+}
+
+metadata::metadata(block_manager<>::ptr bm, open_type ot)
+{
+	switch (ot) {
+	case CREATE:
+		// finish
+		throw runtime_error("not imlemented");
+		break;
+
+	case OPEN:
+		open_metadata(bm);
+		break;
+	}
+}
+
+void
+metadata::open_metadata(block_manager<>::ptr bm)
+{
+	tm_ = open_tm(bm);
+	sb_ = read_superblock(tm_->get_bm());
+
+	bloom_tree_ = bloom_tree::ptr(new bloom_tree(tm_,
+						     sb_.bloom_tree_root,
+						     era_detail_traits::ref_counter(tm_)));
+
+	era_array_ = era_array::ptr(new era_array(tm_,
+						  uint32_traits::ref_counter(),
+						  sb_.era_array_root,
+						  sb_.nr_blocks));
+}
+
+//----------------------------------------------------------------