virtual void invoke(logrec_t& r)
{
// Dump stats on each tick log record
if (r.type() == logrec_t::t_tick_sec || r.type() == logrec_t::t_tick_msec) {
dumpStats(r.lsn());
return;
}
// Code copied from chkpt_t::scan_log
if (r.is_redo()) {
// Ignore metadata pages
if (r.pid() % alloc_cache_t::extent_size == 0 ||
r.pid() == stnode_page::stpid)
{
return;
}
lsn_t lsn = r.lsn();
w_assert0(r.is_redo());
chkpt.mark_page_dirty(r.pid(), lsn, lsn);
if (r.is_multi_page()) {
w_assert0(r.pid2() != 0);
chkpt.mark_page_dirty(r.pid2(), lsn, lsn);
}
updates++;
}
else if (r.type() == logrec_t::t_page_write) {
char* pos = r.data();
PageID pid = *((PageID*) pos);
pos += sizeof(PageID);
lsn_t clean_lsn = *((lsn_t*) pos);
pos += sizeof(lsn_t);
uint32_t count = *((uint32_t*) pos);
PageID end = pid + count;
while (pid < end) {
chkpt.mark_page_clean(pid, clean_lsn);
pid++;
}
page_writes += count;
}
else if (r.type() == logrec_t::t_xct_end) {
commits++;
}
}
void VerifyHandler::checkAlloc(logrec_t& r)
{
auto lsn = r.lsn();
PageID pid = *((PageID*) (r.data_ssx()));
if (r.type() == logrec_t::t_alloc_page) {
if (allocatedPages.find(pid) != allocatedPages.end()) {
std::cout << "on " << lsn
<< " alloc_page of pid " << pid
<< " which is already allocated" << std::endl;
w_assert0(false);
}
allocatedPages.insert(pid);
}
else if (r.type() == logrec_t::t_dealloc_page) {
if (allocatedPages.find(pid) == allocatedPages.end()) {
std::cout << "on " << lsn
<< " dealloc_page of pid " << pid
<< " which is not allocated" << std::endl;
w_assert0(false);
}
allocatedPages.erase(pid);
}
else {
std::cout << "on " << lsn
<< " update on alloc pid " << r.pid()
<< " but invalid logrec type " << r.type_str()
<< std::endl;
w_assert0(false);
}
}
void VerifyHandler::invoke(logrec_t& r)
{
w_assert0(r.valid_header());
lsn_t lsn = r.lsn();
PageID pid = r.pid();
if (r.is_redo()) {
checkRedo(r, pid, lsn, r.page_prev_lsn());
if (r.is_multi_page()) {
checkRedo(r, r.pid2(), lsn, r.page2_prev_lsn());
}
if (alloc_cache_t::is_alloc_pid(pid)) {
// checkAlloc(r);
}
}
if (merge) {
w_assert0(pid >= lastPID);
if (pid == lastPID) {
w_assert0(lsn > lastLSN);
}
w_assert0(merge || lsn >= minLSN);
w_assert0(merge || lsn <= maxLSN);
}
lastLSN = lsn;
lastPID = pid;
count++;
}
virtual void invoke(logrec_t& r)
{
std::cout << r.lsn().hi()
<< '\t' << r.lsn().lo()
<< '\t' << r.pid() << std::endl;
}