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Optimize fetching olm session from the db

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This commit is contained in:
Nicolas Werner 2022-11-01 21:13:11 +01:00
parent 676a6506cb
commit 54931cb21b
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GPG key ID: C8D75E610773F2D9
1 changed files with 28 additions and 25 deletions
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15
src/Cache.cpp
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@ -962,19 +962,20 @@ Cache::getOlmSession(const std::string &curve25519, const std::string &session_i
{
using namespace mtx::crypto;
auto txn = lmdb::txn::begin(env_);
try {
auto txn = ro_txn(env_);
auto db = getOlmSessionsDb(txn, curve25519);
std::string_view pickled;
bool found = db.get(txn, session_id, pickled);
txn.commit();
if (found) {
auto data = nlohmann::json::parse(pickled).get<StoredOlmSession>();
return unpickle<SessionObject>(data.pickled_session, pickle_secret_);
}
} catch (...) {
}
return std::nullopt;
}
@ -983,7 +984,8 @@ Cache::getLatestOlmSession(const std::string &curve25519)
{
using namespace mtx::crypto;
auto txn = lmdb::txn::begin(env_);
try {
auto txn = ro_txn(env_);
auto db = getOlmSessionsDb(txn, curve25519);
std::string_view session_id, pickled_session;
@ -998,11 +1000,12 @@ Cache::getLatestOlmSession(const std::string &curve25519)
}
cursor.close();
txn.commit();
return currentNewest ? std::optional(unpickle<SessionObject>(currentNewest->pickled_session,
pickle_secret_))
: std::nullopt;
} catch (...) {
return std::nullopt;
}
}
std::vector<std::string>