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maintain an in-memory file map instead of searching the entire vault on every operation

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This commit is contained in:
Antoni Piasecki
2026-04-27 11:00:23 +02:00
parent 99d239ea08
commit 32641f97de
9 changed files with 114 additions and 126 deletions
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14
src/vault.h
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@@ -4,16 +4,18 @@
#include <botan/secmem.h>
#include <fstream>
#include <optional>
#include <unordered_map>
constexpr i16 VERSION = 1;
constexpr u16 VERSION = 1;
constexpr u64 AFTER_HEADER_OFFSET = 68;
// !!! REMEMBER TO UPDATE entry_total_size IN Vault::delete_file
struct FileHeader {
u64 offset;
bool deleted;
u64 name_ciphertext_size;
std::string name;
u64 content_ciphertext_size;
u64 content_offset;
};
class Vault {
@@ -22,18 +24,22 @@ public:
static void create(const std::string &path, const std::string &password);
std::vector<FileHeader> read_file_headers();
std::optional<std::string> read_file(const std::string &name);
std::string read_file(const std::string &name);
void create_file(const std::string &name, const std::string &content);
void delete_file(const std::string &name);
void update_file(const std::string &name, const std::string &content);
const std::string &path() const { return m_path; }
const std::unordered_map<std::string, FileHeader> &file_map() const {
return m_file_map;
}
private:
std::string m_path;
std::fstream m_file;
Botan::secure_vector<u8> m_key;
std::unordered_map<std::string, FileHeader> m_file_map;
void build_file_map();
std::optional<FileHeader> read_file_header();
};