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This commit is contained in:
EntireTwix 2021-07-12 21:35:52 -07:00
parent c94c19cbe1
commit a46801daea
1 changed files with 26 additions and 38 deletions
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64
src/bank.cpp
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@ -66,8 +66,7 @@ bool Bank::GetChangeState() const noexcept
BankResponse Bank::GetBal(const std::string &name) const noexcept BankResponse Bank::GetBal(const std::string &name) const noexcept
{ {
uint32_t res = 0; uint32_t res = 0;
if (!users.if_contains(name, [&res](const User &u) if (!users.if_contains(name, [&res](const User &u) { res = u.balance; }))
{ res = u.balance; }))
{ {
return {k404NotFound, "\"User not found\""}; return {k404NotFound, "\"User not found\""};
} }
@ -80,8 +79,7 @@ BankResponse Bank::GetBal(const std::string &name) const noexcept
BankResponse Bank::GetLogs(const std::string &name) noexcept BankResponse Bank::GetLogs(const std::string &name) noexcept
{ {
BankResponse res; BankResponse res;
if (!users.modify_if(name, [&res](User &u) if (!users.modify_if(name, [&res](User &u) { res = {k200OK, u.log.GetLogs()}; }))
{ res = {k200OK, u.log.GetLogs()}; }))
{ {
return {k404NotFound, "\"User not found\""}; return {k404NotFound, "\"User not found\""};
} }
@ -116,36 +114,33 @@ BankResponse Bank::SendFunds(const std::string &a_name, const std::string &b_nam
#if MAX_LOG_SIZE > 0 #if MAX_LOG_SIZE > 0
static thread_local Transaction temp(a_name, b_name, amount); static thread_local Transaction temp(a_name, b_name, amount);
#endif #endif
if (!users.modify_if(a_name, [&state, amount](User &a) if (!users.modify_if(a_name, [&state, amount](User &a) {
{ //if A can afford it
//if A can afford it if (a.balance < amount)
if (a.balance < amount) {
{ state = {k400BadRequest, "\"Sender has insufficient funds\""};
state = {k400BadRequest, "\"Sender has insufficient funds\""}; }
} else
else {
{ a.balance -= amount;
a.balance -= amount;
#if MAX_LOG_SIZE > 0 #if MAX_LOG_SIZE > 0
a.log.AddTrans(temp); //about 40% of this function's cost a.log.AddTrans(temp); //about 40% of this function's cost
#endif #endif
state = {k200OK, std::to_string(a.balance)}; state = {k200OK, std::to_string(a.balance)};
} }
})) }))
{ {
return {k404NotFound, "\"Sender does not exist\""}; return {k404NotFound, "\"Sender does not exist\""};
} }
if (state.first == k200OK) if (state.first == k200OK)
{ {
#if MAX_LOG_SIZE > 0 #if MAX_LOG_SIZE > 0
users.modify_if(b_name, [amount](User &b) users.modify_if(b_name, [amount](User &b) {
{ b.balance += amount;
b.balance += amount; b.log.AddTrans(temp);
b.log.AddTrans(temp); }); //about 40% of this function's cost
}); //about 40% of this function's cost
#else #else
users.modify_if(b_name, [amount](User &b) users.modify_if(b_name, [amount](User &b) { b.balance += amount; });
{ b.balance += amount; });
#endif #endif
#if CONSERVATIVE_DISK_SAVE #if CONSERVATIVE_DISK_SAVE
#if MULTI_THREADED #if MULTI_THREADED
@ -160,8 +155,7 @@ BankResponse Bank::SendFunds(const std::string &a_name, const std::string &b_nam
bool Bank::VerifyPassword(const std::string &name, const std::string_view &attempt) const noexcept bool Bank::VerifyPassword(const std::string &name, const std::string_view &attempt) const noexcept
{ {
bool res = false; bool res = false;
users.if_contains(name, [&res, &attempt](const User &u) users.if_contains(name, [&res, &attempt](const User &u) { res = (u.password == xxHashStringGen{}(attempt)); });
{ res = (u.password == xxHashStringGen{}(attempt)); });
return res; return res;
} }
@ -174,13 +168,11 @@ void Bank::ChangePassword(const std::string &name, const std::string &new_pass)
save_flag = true; save_flag = true;
#endif #endif
#endif #endif
users.modify_if(name, [&new_pass](User &u) users.modify_if(name, [&new_pass](User &u) { u.password = xxHashStringGen{}(new_pass); });
{ u.password = xxHashStringGen{}(new_pass); });
} }
BankResponse Bank::SetBal(const std::string &name, uint32_t amount) noexcept BankResponse Bank::SetBal(const std::string &name, uint32_t amount) noexcept
{ {
if (!users.modify_if(name, [amount](User &u) if (!users.modify_if(name, [amount](User &u) { u.balance = amount; }))
{ u.balance = amount; }))
{ {
return {k404NotFound, "\"User not found\""}; return {k404NotFound, "\"User not found\""};
} }
@ -203,8 +195,7 @@ BankResponse Bank::ImpactBal(const std::string &name, int64_t amount) noexcept
return {k400BadRequest, "\"Amount cannot be 0\""}; return {k400BadRequest, "\"Amount cannot be 0\""};
} }
uint32_t balance; uint32_t balance;
if (users.modify_if(name, [&balance, amount](User &u) if (users.modify_if(name, [&balance, amount](User &u) { balance = (u.balance < (amount * -1) ? u.balance = 0 : u.balance += amount); }))
{ balance = (u.balance < (amount * -1) ? u.balance = 0 : u.balance += amount); }))
{ {
#if CONSERVATIVE_DISK_SAVE #if CONSERVATIVE_DISK_SAVE
#if MULTI_THREADED #if MULTI_THREADED
@ -257,9 +248,7 @@ BankResponse Bank::DelUser(const std::string &name) noexcept
std::shared_lock<std::shared_mutex> lock{save_lock}; std::shared_lock<std::shared_mutex> lock{save_lock};
#if RETURN_ON_DEL #if RETURN_ON_DEL
uint32_t bal; uint32_t bal;
if (users.if_contains(name, [&bal](const User &u) if (users.if_contains(name, [&bal](const User &u) { bal = u.balance; }) && bal)
{ bal = u.balance; }) &&
bal)
{ {
users.modify_if(return_account, [bal](User & u)) users.modify_if(return_account, [bal](User & u))
{ {
@ -297,8 +286,7 @@ const char *Bank::Save()
for (const auto &u : users) for (const auto &u : users)
{ {
//we know it contains this key but we call this func to grab mutex //we know it contains this key but we call this func to grab mutex
users.if_contains(u.first, [&u](const User &u_val) users.if_contains(u.first, [&u](const User &u_val) { temp[u.first] = u_val.Serialize(); });
{ temp[u.first] = u_val.Serialize(); });
} }
} }
if (temp.isNull()) if (temp.isNull())