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🐎 made SendFunds 10% faster

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EntireTwix 2021-04-01 20:13:47 -07:00
parent 1c7b2f67fe
commit ed04fb556f
2 changed files with 11 additions and 6 deletions
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12
include/user.hpp
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@ -20,15 +20,21 @@ public:
const bool state = (password == attempt);
if (state)
{
password = new_pass;
password == new_pass;
}
return state;
}
friend bool SendFunds(User &a, User &b, uint_fast64_t amount, const std::string &attempt)
{
std::scoped_lock<std::mutex, std::mutex> lock{a.bal_lock, a.pass_lock};
const bool state = (a.password == attempt) && (a.balance >= amount);
bool state;
{
std::lock_guard<std::mutex> lock{a.pass_lock};
state = (a.password == attempt);
}
std::scoped_lock<std::mutex, std::mutex> lock{a.bal_lock, b.bal_lock};
state = state && (a.balance >= amount);
if (state)
{
a.balance -= amount;

5
main.cpp
View file

@ -5,11 +5,10 @@ int main()
{
User a(1000, "pass123");
User b(0, "pass123");
std::cout << a.ChangePassword("pass123", "newpass123") << '\n';
std::cout << SendFunds(a, b, 250, "newpass123") << '\n';
a.ChangePassword("pass123", "newpass123");
SendFunds(a, b, 250, "newpass123");
a.GetBal();
a.VerifyPassword("newpass124");
std::cout << a.GetBal() << '\n';
return 0;
}