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Implemented (but did not test) header update.

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git-svn-id: svn+ssh://svn.corp.yahoo.com/yahoo/yrl/labs/pnuts/code/logstore@650 8dad8b1f-cf64-0410-95b6-bcf113ffbcfe
This commit is contained in:
sears 2010-02-27 00:35:13 +00:00
parent 2d44b6beed
commit 27720dddbe
3 changed files with 12 additions and 13 deletions
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15
logstore.cpp
View file

@ -48,7 +48,6 @@ logtable::logtable()
epoch = 0;
}
void logtable::tearDownTree(rbtree_ptr_t tree) {
datatuple * t = 0;
rbtree_t::iterator old;
@ -92,14 +91,18 @@ recordid logtable::allocTable(int xid)
table_rec = Talloc(xid, sizeof(tbl_header));
//create the big tree
tbl_header.c2_dp_state = Talloc(xid, DataPage<datatuple>::RegionAllocator::header_size);
tree_c2 = new diskTreeComponent(xid);
//create the small tree
tbl_header.c1_dp_state = Talloc(xid, DataPage<datatuple>::RegionAllocator::header_size);
tree_c1 = new diskTreeComponent(xid);
tbl_header.c2_root = tree_c2->get_root_rec();
update_persistent_header(xid);
return table_rec;
}
void logtable::update_persistent_header(int xid) {
tbl_header.c2_root = tree_c2->get_root_rec();
tbl_header.c2_dp_state = tree_c2->get_alloc()->header_rid();
tbl_header.c2_state = tree_c2->get_tree_state();
tbl_header.c1_root = tree_c1->get_root_rec();
@ -107,8 +110,6 @@ recordid logtable::allocTable(int xid)
tbl_header.c1_state = tree_c1->get_tree_state();
Tset(xid, table_rec, &tbl_header);
return table_rec;
}
void logtable::flushTable()
@ -540,6 +541,4 @@ void logtable::bump_epoch() {
}
}
template class logtableIterator<datatuple>;

2
logstore.h
View file

@ -91,6 +91,8 @@ public:
void set_tree_c0(rbtree_ptr_t newtree){tree_c0 = newtree; bump_epoch(); }
void set_tree_c0_mergeable(rbtree_ptr_t newtree){tree_c0_mergeable = newtree; bump_epoch(); }
void update_persistent_header(int xid);
int get_fixed_page_count(){return fixed_page_count;}
void set_fixed_page_count(int count){fixed_page_count = count;}

6
merger.cpp
View file

@ -344,10 +344,9 @@ void* memMergeThread(void*arg)
ltable->set_tree_c1(c1_prime);
}
// XXX want to set this stuff somewhere.
logtable::table_header h;
printf("mmt:\tUpdated C1's position on disk to %lld\n",ltable->get_tree_c1()->get_root_rec().page);
// 13
ltable->update_persistent_header(xid);
Tcommit(xid);
unlock(ltable->header_lock);
@ -465,10 +464,9 @@ void *diskMergeThread(void*arg)
// 10: C2 is never to big
ltable->set_tree_c2(c2_prime);
logtable::table_header h; // XXX Need to set header.
printf("dmt:\tUpdated C2's position on disk to %lld\n",(long long)-1);
// 13
ltable->update_persistent_header(xid);
Tcommit(xid);
unlock(ltable->header_lock);