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era_invalidate

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This commit is contained in:
Joe Thornber
2014-01-31 16:31:27 +00:00
parent 344f4b1e08
commit d3afa57082
5 changed files with 150 additions and 13 deletions
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12
era/superblock.cc
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@@ -4,6 +4,7 @@
#include "persistent-data/errors.h"
using namespace base;
using namespace boost;
using namespace era;
using namespace superblock_damage;
using namespace persistent_data;
@@ -37,6 +38,8 @@ namespace {
le64 writeset_tree_root;
le64 era_array_root;
le64 metadata_snap;
} __attribute__ ((packed));
struct superblock_traits {
@@ -143,6 +146,11 @@ superblock_traits::unpack(disk_type const &disk, value_type &value)
era_detail_traits::unpack(disk.current_detail, value.current_detail);
value.writeset_tree_root = to_cpu<uint64_t>(disk.writeset_tree_root);
value.era_array_root = to_cpu<uint64_t>(disk.era_array_root);
block_address ms = to_cpu<uint64_t>(disk.metadata_snap);
value.metadata_snap = (ms == SUPERBLOCK_LOCATION) ?
optional<block_address>() :
optional<block_address>(ms);
}
void
@@ -163,6 +171,10 @@ superblock_traits::pack(value_type const &value, disk_type &disk)
era_detail_traits::pack(value.current_detail, disk.current_detail);
disk.writeset_tree_root = to_disk<le64>(value.writeset_tree_root);
disk.era_array_root = to_disk<le64>(value.era_array_root);
disk.metadata_snap = value.metadata_snap ?
to_disk<le64>(*value.metadata_snap) :
to_disk<le64>(SUPERBLOCK_LOCATION);
}
//--------------------------------