52 lines
1.8 KiB
C++
52 lines
1.8 KiB
C++
#pragma once
|
|
/*
|
|
* Copyright (C) 2024 Brett Terpstra
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef BLT_FS_BOUNDED_WRITER_H
|
|
#define BLT_FS_BOUNDED_WRITER_H
|
|
|
|
#include <blt/fs/fwddecl.h>
|
|
#include <functional>
|
|
#include <string>
|
|
#include <blt/std/types.h>
|
|
#icnlude <optional>
|
|
|
|
namespace blt::fs
|
|
{
|
|
inline auto basic_naming_function = [](size_t invocation, std::optional<std::string> prefix) {
|
|
return prefix.value_or("") + "-" + std::to_string(invocation) + ".txt";
|
|
};
|
|
|
|
/**
|
|
* Creates a bounded writer where after a specified number of bytes a new file will be opened and written to instead.
|
|
*/
|
|
class bounded_writer : public writer_t
|
|
{
|
|
public:
|
|
explicit bounded_writer(std::optional<std::string> base_name, std::function<std::string(size_t, std::optional<std::string>)> naming_function = basic_naming_function, size_t max_size = 1024 * 1024 * 10);
|
|
|
|
private:
|
|
std::optional<std::string> m_base_name;
|
|
size_t m_current_invocation = 0;
|
|
// inputs: current invocation, optional string provided to the constructor
|
|
// returns: name of the file to write to
|
|
std::function<std::string(size_t, std::optional<std::string>)> m_naming_function;
|
|
};
|
|
}
|
|
|
|
#endif //BLT_FS_BOUNDED_WRITER_H
|