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🐎 made AllUsers more effecient

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This commit is contained in:
EntireTwix 2021-04-11 14:28:30 -07:00
parent ed83718f1f
commit 2fabf8d8db
1 changed files with 29 additions and 9 deletions
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38
include/bank.hpp
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@ -29,14 +29,18 @@ private:
*/
std::shared_mutex send_funds_l;
bool size_lock_flag = true;
Json::Value temp;
public:
std::string admin_pass;
bool AddUser(const std::string &name, std::string &&init_pass)
{
std::unique_lock<std::shared_mutex> lock{size_lock};
size_lock_flag = true;
return users.try_emplace_l(
name, [](User &) {}, std::move(init_pass));
name, [this](User &) { size_lock_flag = false; }, std::move(init_pass));
}
bool AdminAddUser(const std::string &attempt, std::string &&name, uint_fast32_t init_bal, std::string &&init_pass)
{
@ -47,18 +51,23 @@ public:
state = users.try_emplace_l(
name, [](User &) {}, init_bal, std::move(init_pass));
}
size_lock_flag += state;
return state;
}
bool DelUser(const std::string &name, const std::string &attempt)
{
std::unique_lock<std::shared_mutex> lock{size_lock};
return users.erase_if(name, [&attempt](const User &u) { return (attempt == u.password); });
bool state = users.erase_if(name, [&attempt](const User &u) { return (attempt == u.password); });
size_lock_flag += state;
return state;
}
bool AdminDelUser(const std::string &name, const std::string &attempt)
{
std::unique_lock<std::shared_mutex> lock{size_lock};
return users.erase_if(name, [this, &attempt](const User &) { return (admin_pass == attempt); });
bool state = users.erase_if(name, [this, &attempt](const User &) { return (admin_pass == attempt); });
size_lock_flag += state;
return state;
}
bool SendFunds(const std::string &a_name, const std::string &b_name, uint_fast32_t amount, const std::string &attempt)
@ -144,13 +153,24 @@ public:
Json::Value AllUsers()
{
Json::Value temp;
Json::UInt i = 0;
std::shared_lock<std::shared_mutex> lock{size_lock}; //gives readers of users the lock
for (const auto &u : users)
bool temp_flag = false;
{
//we know it contains this key but we call this func to grab mutex
temp[i++] = u.first;
std::shared_lock<std::shared_mutex> lock{size_lock};
temp_flag = size_lock_flag;
}
if (!temp_flag)
{
temp = Json::Value();
Json::UInt i = 0;
for (const auto &u : users)
{
//we know it contains this key but we call this func to grab mutex
temp[i++] = u.first;
}
size_lock.unlock_shared();
std::unique_lock<std::shared_mutex> lock{size_lock};
size_lock_flag = false;
}
return temp;
}