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Modernize db.hpp

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topjohnwu
2021-08-27 01:06:03 -07:00
parent 4771c2810b
commit 5d162f81c4
2 changed files with 50 additions and 68 deletions
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71
native/jni/include/db.hpp
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@ -6,15 +6,15 @@
#include <string_view>
#include <functional>
template <class T, size_t num>
class db_data_base {
template <class T, size_t N>
class db_dict {
public:
T& operator [](std::string_view key) {
return data[getKeyIdx(key)];
return data[get_idx(key)];
}
const T& operator [](std::string_view key) const {
return data[getKeyIdx(key)];
return data[get_idx(key)];
}
T& operator [](int key) {
@ -26,25 +26,22 @@ public:
}
protected:
T data[num + 1];
virtual int getKeyIdx(std::string_view key) const = 0;
T data[N + 1];
virtual int get_idx(std::string_view key) const = 0;
};
/***************
* DB Settings *
***************/
#define DB_SETTING_KEYS \
((const char *[]) { \
"root_access", \
"multiuser_mode", \
"mnt_ns", \
"magiskhide", \
})
constexpr const char *DB_SETTING_KEYS[] = {
"root_access",
"multiuser_mode",
"mnt_ns",
"magiskhide"
};
#define DB_SETTINGS_NUM 4
// Settings keys
// Settings key indices
enum {
ROOT_ACCESS = 0,
SU_MULTIUSER_MODE,
@ -74,33 +71,27 @@ enum {
NAMESPACE_MODE_ISOLATE
};
class db_settings : public db_data_base<int, DB_SETTINGS_NUM> {
class db_settings : public db_dict<int, std::size(DB_SETTING_KEYS)> {
public:
db_settings();
protected:
int getKeyIdx(std::string_view key) const override;
int get_idx(std::string_view key) const override;
};
/**************
* DB Strings *
**************/
#define DB_STRING_KEYS \
((const char *[]) { \
"requester", \
})
constexpr const char *DB_STRING_KEYS[] = { "requester" };
#define DB_STRING_NUM 1
// Strings keys
// Strings keys indices
enum {
SU_MANAGER = 0
};
class db_strings : public db_data_base<std::string, DB_STRING_NUM> {
class db_strings : public db_dict<std::string, std::size(DB_STRING_KEYS)> {
protected:
int getKeyIdx(std::string_view key) const override;
int get_idx(std::string_view key) const override;
};
/*************
@ -119,30 +110,16 @@ struct su_access {
int notify;
};
#define DEFAULT_SU_ACCESS (su_access) { \
.policy = QUERY, \
.log = 1, \
.notify = 1 \
}
#define SILENT_SU_ACCESS (su_access) { \
.policy = ALLOW, \
.log = 0, \
.notify = 0 \
}
#define NO_SU_ACCESS (su_access) { \
.policy = DENY, \
.log = 0, \
.notify = 0 \
}
#define DEFAULT_SU_ACCESS { QUERY, 1, 1 }
#define SILENT_SU_ACCESS { ALLOW, 0, 0 }
#define NO_SU_ACCESS { DENY, 0, 0 }
/********************
* Public Functions *
********************/
typedef std::map<std::string_view, std::string_view> db_row;
typedef std::function<bool(db_row&)> db_row_cb;
using db_row = std::map<std::string_view, std::string_view>;
using db_row_cb = std::function<bool(db_row&)>;
int get_db_settings(db_settings &cfg, int key = -1);
int get_db_strings(db_strings &str, int key = -1);