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🐎 SendFunds lock time decreased

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EntireTwix 2021-04-21 15:44:27 -07:00
parent 32ea81bac2
commit 491f5f9adf
1 changed files with 21 additions and 19 deletions
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40
include/bank.hpp
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@ -80,27 +80,29 @@ public:
}
//if A exists, A can afford it, and A's password matches
bool state = false;
std::shared_lock<std::shared_mutex> lock{send_funds_l}; //because SendFunds requires 3 locking operations
users.modify_if(a_name, [&state, amount, &attempt](User &a) {
if (state = (a.balance >= amount) && (a.password == XXH3_64bits(attempt.data(), attempt.size())))
{
a.balance -= amount;
}
});
if (state)
{
//if B doesnt exist
if (!users.modify_if(b_name, [amount](User &b) {
b.balance += amount;
}))
std::shared_lock<std::shared_mutex> lock{send_funds_l}; //because SendFunds requires 3 locking operations
bool state = false;
users.modify_if(a_name, [&state, amount, &attempt](User &a) {
if (state = (a.balance >= amount) && (a.password == XXH3_64bits(attempt.data(), attempt.size())))
{
a.balance -= amount;
}
});
if (state)
{
//attempt to refund if A exist
users.modify_if(a_name, [amount](User &a) {
a.balance += amount;
});
state = false; //because had to refund transaction
//if B doesnt exist
if (!users.modify_if(b_name, [amount](User &b) {
b.balance += amount;
}))
{
//attempt to refund if A exist
users.modify_if(a_name, [amount](User &a) {
a.balance += amount;
});
state = false; //because had to refund transaction
}
}
}