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Fix file database statistics.

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GitOrigin-RevId: 4ad707a1e8cb17dffa1b6a7b6ed299dd772a563d
This commit is contained in:
levlam 2020-06-02 18:19:44 +03:00
parent 1ba4a5912d
commit d94afc648d
1 changed files with 18 additions and 2 deletions
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20
td/telegram/TdDb.cpp
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@ -526,16 +526,30 @@ Result<string> TdDb::get_stats() {
TRY_STATUS(run_kv_query("gr%"));
std::vector<int32> prev(1);
size_t count = 0;
int32 max_bad_to = 0;
size_t bad_count = 0;
file_db_->pmc().get_by_range("file0", "file:", [&](Slice key, Slice value) {
if (value.substr(0, 2) != "@@") {
return true;
}
count++;
auto from = to_integer<td::int32>(key.substr(4));
auto to = to_integer<td::int32>(value.substr(2));
CHECK(from > to);
if (from <= to) {
LOG(DEBUG) << "Have forward reference from " << from << " to " << to;
if (to > max_bad_to) {
max_bad_to = to;
}
bad_count++;
return true;
}
if (static_cast<size_t>(from) >= prev.size()) {
prev.resize(from + 1);
}
if (static_cast<size_t>(to) >= prev.size()) {
prev.resize(to + 1);
}
prev[from] = to;
return true;
});
@ -545,7 +559,9 @@ Result<string> TdDb::get_stats() {
}
prev[i] = prev[prev[i]] + 1;
}
sb << "Max filedb depth:" << *std::max_element(prev.begin(), prev.end()) << "\n";
sb << "Max file database depth out of " << prev.size() << '/' << count
<< " elements: " << *std::max_element(prev.begin(), prev.end()) << "\n";
sb << "Have " << bad_count << " forward references with maximum reference to " << max_bad_to;
return sb.as_cslice().str();
}