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🎨 improved CONSERVATIVE_DISK_SAVE flags usage

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This commit is contained in:
EntireTwix 2021-06-27 17:53:46 -07:00
parent a4964d2742
commit 3028c6153a
2 changed files with 16 additions and 19 deletions
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5
include/bank.h
View file

@ -37,12 +37,17 @@ private:
*/
std::shared_mutex send_funds_l;
#if CONSERVATIVE_DISK_SAVE
void ChangesMade() noexcept; //called after making changes
void ChangesSaved() noexcept; //called after saving
#endif
public:
std::string admin_pass;
#if CONSERVATIVE_DISK_SAVE
bool GetChangeState() noexcept;
#endif
BankResponse GetBal(const std::string &name) const noexcept;
BankResponse GetLogs(const std::string &name) noexcept;

24
src/bank.cpp
View file

@ -2,31 +2,20 @@
using namespace drogon;
#if CONSERVATIVE_DISK_SAVE
void Bank::ChangesMade() noexcept
{
if constexpr (CONSERVATIVE_DISK_SAVE)
{
return change_flag.store(1, std::memory_order_release);
}
}
void Bank::ChangesSaved() noexcept
{
if constexpr (CONSERVATIVE_DISK_SAVE)
{
return change_flag.store(0, std::memory_order_release);
}
}
bool Bank::GetChangeState() noexcept
{
if constexpr (CONSERVATIVE_DISK_SAVE)
{
return change_flag.load(std::memory_order_acquire);
}
else
{
return true;
}
}
#endif
BankResponse Bank::GetBal(const std::string &name) const noexcept
{
@ -76,9 +65,8 @@ BankResponse Bank::SendFunds(const std::string &a_name, const std::string &b_nam
if constexpr (max_log_size > 0)
{
Transaction temp(a_name, b_name, amount);
Transaction temp_copy(temp);
std::shared_lock<std::shared_mutex> lock{send_funds_l};
users.modify_if(a_name, [&temp_copy, &state, amount](User &a) {
users.modify_if(a_name, [&temp, &state, amount](User &a) {
//if A can afford it
if (a.balance < amount)
{
@ -87,7 +75,7 @@ BankResponse Bank::SendFunds(const std::string &a_name, const std::string &b_nam
else
{
a.balance -= amount;
a.log.AddTrans(std::move(temp_copy));
a.log.AddTrans(Transaction(temp));
state = {k200OK, "Transfer successful!"};
}
});
@ -275,8 +263,10 @@ int_fast8_t Bank::SetBal(const std::string &name, const std::string &attempt, ui
void Bank::Save()
{
#if CONSERVATIVE_DISK_SAVE
if (GetChangeState())
{
#endif
Json::Value temp;
//loading info into json temp
@ -302,8 +292,10 @@ void Bank::Save()
writer->write(temp, &user_save);
user_save.close();
}
#if CONSERVATIVE_DISK_SAVE
ChangesSaved();
}
#endif
}
//NOT THREAD SAFE, BY NO MEANS SHOULD THIS BE CALLED WHILE RECEIEVING REQUESTS