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✨ implementing change state saving

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This commit is contained in:
EntireTwix 2021-06-23 18:36:39 -07:00
parent 57a0ab5d54
commit 7aadd63cd5
2 changed files with 40 additions and 41 deletions
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5
main.cpp
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@ -62,7 +62,10 @@ int main(int argc, char **argv)
while (1)
{
std::this_thread::sleep_for(std::chrono::minutes(saving_freq));
bank.Save();
if (bank.GetChangeState())
{
bank.Save();
}
std::cout << "Saving " << std::time(0) << '\n';
}
}).detach();

76
src/bank.cpp
View file

@ -1,18 +1,13 @@
#include "bank.h"
#if CONSERVATIVE_DISK_SAVE
void Bank::ChangesMade() noexcept
{
return change_flag.store(1, std::memory_order_release);
}
void Bank::ChangesSaved() noexcept
{
return change_flag.store(1, std::memory_order_release);
}
bool Bank::GetChangeState() noexcept
{
return change_flag.load(std::memory_order_acquire);
}
void Bank::ChangesMade() noexcept { return change_flag.store(1, std::memory_order_release); }
void Bank::ChangesSaved() noexcept { return change_flag.store(1, std::memory_order_release); }
bool Bank::GetChangeState() noexcept { return change_flag.load(std::memory_order_acquire); }
#else
void Bank::ChangesMade() noexcept { return change_flag.store(1, std::memory_order_release); }
void Bank::ChangesSaved() noexcept { return change_flag.store(1, std::memory_order_release); }
bool Bank::GetChangeState() noexcept { return 1; }
#endif
int_fast8_t Bank::AddUser(const std::string &name, const std::string &init_pass) noexcept
@ -26,13 +21,11 @@ int_fast8_t Bank::AddUser(const std::string &name, const std::string &init_pass)
return ErrorResponse::InvalidRequest;
}
{
std::shared_lock<std::shared_mutex> lock{size_l};
return (users.try_emplace_l(
name, [](User &) {}, init_pass))
? true
: ErrorResponse::UserAlreadyExists;
}
std::shared_lock<std::shared_mutex> lock{size_l};
return (users.try_emplace_l(
name, [](User &) {}, init_pass))
? true
: ErrorResponse::UserAlreadyExists;
}
int_fast8_t Bank::AdminAddUser(const std::string &attempt, std::string &&name, uint32_t init_bal, std::string &&init_pass) noexcept
{
@ -254,30 +247,33 @@ Json::Value Bank::GetLogs(const std::string &name, const std::string &attempt) n
void Bank::Save()
{
Json::Value temp;
if (GetChangeState())
{
Json::Value temp;
//loading info into json temp
{
std::scoped_lock<std::shared_mutex, std::shared_mutex> lock{size_l, send_funds_l};
for (const auto &u : users)
//loading info into json temp
{
//we know it contains this key but we call this func to grab mutex
users.if_contains(u.first, [&temp, &u](const User &u_val) {
temp[u.first] = u_val.Serialize();
});
std::scoped_lock<std::shared_mutex, std::shared_mutex> lock{size_l, send_funds_l};
for (const auto &u : users)
{
//we know it contains this key but we call this func to grab mutex
users.if_contains(u.first, [&temp, &u](const User &u_val) {
temp[u.first] = u_val.Serialize();
});
}
}
if (temp.isNull())
{
throw std::invalid_argument("Saving Failed\n");
}
else
{
std::ofstream user_save(users_location);
Json::StreamWriterBuilder builder;
const std::unique_ptr<Json::StreamWriter> writer(builder.newStreamWriter());
writer->write(temp, &user_save);
user_save.close();
}
}
if (temp.isNull())
{
throw std::invalid_argument("Saving Failed\n");
}
else
{
std::ofstream user_save(users_location);
Json::StreamWriterBuilder builder;
const std::unique_ptr<Json::StreamWriter> writer(builder.newStreamWriter());
writer->write(temp, &user_save);
user_save.close();
}
}