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Convert parameters and config keys to std::string_view

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Using std::string_view instead of std::string& silences a new warning
from GCC 13, -Wdangling-reference

Also switch return type of `getI` from int& to int, trivial types are
cheaper to copy by value
This commit is contained in:
nobounce 2023-07-27 14:17:54 +02:00
parent 594f42b9eb
commit 091c30ab2b
No known key found for this signature in database
GPG key ID: CC8B8C464BDC2F39
2 changed files with 34 additions and 31 deletions
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28
src/btop_config.cpp
View file

@ -17,11 +17,13 @@ tab-size = 4
*/
#include <array>
#include <ranges>
#include <atomic>
#include <fstream>
#include <ranges>
#include <string_view>
#include <fmt/core.h>
#include "btop_config.hpp"
#include "btop_shared.hpp"
#include "btop_tools.hpp"
@ -193,7 +195,7 @@ namespace Config {
"#* The level set includes all lower levels, i.e. \"DEBUG\" will show all logging info."}
};
unordered_flat_map<string, string> strings = {
unordered_flat_map<std::string_view, string> strings = {
{"color_theme", "Default"},
{"shown_boxes", "cpu mem net proc"},
{"graph_symbol", "braille"},
@ -219,9 +221,9 @@ namespace Config {
{"proc_command", ""},
{"selected_name", ""},
};
unordered_flat_map<string, string> stringsTmp;
unordered_flat_map<std::string_view, string> stringsTmp;
unordered_flat_map<string, bool> bools = {
unordered_flat_map<std::string_view, bool> bools = {
{"theme_background", true},
{"truecolor", true},
{"rounded_corners", true},
@ -267,9 +269,9 @@ namespace Config {
{"show_detailed", false},
{"proc_filtering", false},
};
unordered_flat_map<string, bool> boolsTmp;
unordered_flat_map<std::string_view, bool> boolsTmp;
unordered_flat_map<string, int> ints = {
unordered_flat_map<std::string_view, int> ints = {
{"update_ms", 2000},
{"net_download", 100},
{"net_upload", 100},
@ -280,9 +282,9 @@ namespace Config {
{"proc_selected", 0},
{"proc_last_selected", 0},
};
unordered_flat_map<string, int> intsTmp;
unordered_flat_map<std::string_view, int> intsTmp;
bool _locked(const string& name) {
bool _locked(const std::string_view name) {
atomic_wait(writelock, true);
if (not write_new and rng::find_if(descriptions, [&name](const auto& a) { return a.at(0) == name; }) != descriptions.end())
write_new = true;
@ -369,7 +371,7 @@ namespace Config {
string validError;
bool intValid(const string& name, const string& value) {
bool intValid(const std::string_view name, const string& value) {
int i_value;
try {
i_value = stoi(value);
@ -399,7 +401,7 @@ namespace Config {
return false;
}
bool stringValid(const string& name, const string& value) {
bool stringValid(const std::string_view name, const string& value) {
if (name == "log_level" and not v_contains(Logger::log_levels, value))
validError = "Invalid log_level: " + value;
@ -407,7 +409,7 @@ namespace Config {
validError = "Invalid graph symbol identifier: " + value;
else if (name.starts_with("graph_symbol_") and (value != "default" and not v_contains(valid_graph_symbols, value)))
validError = "Invalid graph symbol identifier for" + name + ": " + value;
validError = fmt::format("Invalid graph symbol identifier for {}: {}", name, value);
else if (name == "shown_boxes" and not value.empty() and not check_boxes(value))
validError = "Invalid box name(s) in shown_boxes!";
@ -456,7 +458,7 @@ namespace Config {
return false;
}
string getAsString(const string& name) {
string getAsString(const std::string_view name) {
if (bools.contains(name))
return (bools.at(name) ? "True" : "False");
else if (ints.contains(name))
@ -466,7 +468,7 @@ namespace Config {
return "";
}
void flip(const string& name) {
void flip(const std::string_view name) {
if (_locked(name)) {
if (boolsTmp.contains(name)) boolsTmp.at(name) = not boolsTmp.at(name);
else boolsTmp.insert_or_assign(name, (not bools.at(name)));

37
src/btop_config.hpp
View file

@ -20,9 +20,10 @@ tab-size = 4
#include <string>
#include <vector>
#include <robin_hood.h>
#include <filesystem>
#include <robin_hood.h>
using std::string;
using std::vector;
using robin_hood::unordered_flat_map;
@ -33,12 +34,12 @@ namespace Config {
extern std::filesystem::path conf_dir;
extern std::filesystem::path conf_file;
extern unordered_flat_map<string, string> strings;
extern unordered_flat_map<string, string> stringsTmp;
extern unordered_flat_map<string, bool> bools;
extern unordered_flat_map<string, bool> boolsTmp;
extern unordered_flat_map<string, int> ints;
extern unordered_flat_map<string, int> intsTmp;
extern unordered_flat_map<std::string_view, string> strings;
extern unordered_flat_map<std::string_view, string> stringsTmp;
extern unordered_flat_map<std::string_view, bool> bools;
extern unordered_flat_map<std::string_view, bool> boolsTmp;
extern unordered_flat_map<std::string_view, int> ints;
extern unordered_flat_map<std::string_view, int> intsTmp;
const vector<string> valid_graph_symbols = { "braille", "block", "tty" };
const vector<string> valid_graph_symbols_def = { "default", "braille", "block", "tty" };
@ -62,44 +63,44 @@ namespace Config {
//* Apply selected preset
void apply_preset(const string& preset);
bool _locked(const string& name);
bool _locked(const std::string_view name);
//* Return bool for config key <name>
inline bool getB(const string& name) { return bools.at(name); }
inline bool getB(const std::string_view name) { return bools.at(name); }
//* Return integer for config key <name>
inline const int& getI(const string& name) { return ints.at(name); }
inline const int& getI(const std::string_view name) { return ints.at(name); }
//* Return string for config key <name>
inline const string& getS(const string& name) { return strings.at(name); }
inline const string& getS(const std::string_view name) { return strings.at(name); }
string getAsString(const string& name);
string getAsString(const std::string_view name);
extern string validError;
bool intValid(const string& name, const string& value);
bool stringValid(const string& name, const string& value);
bool intValid(const std::string_view name, const string& value);
bool stringValid(const std::string_view name, const string& value);
//* Set config key <name> to bool <value>
inline void set(const string& name, bool value) {
inline void set(const std::string_view name, bool value) {
if (_locked(name)) boolsTmp.insert_or_assign(name, value);
else bools.at(name) = value;
}
//* Set config key <name> to int <value>
inline void set(const string& name, const int& value) {
inline void set(const std::string_view name, const int& value) {
if (_locked(name)) intsTmp.insert_or_assign(name, value);
else ints.at(name) = value;
}
//* Set config key <name> to string <value>
inline void set(const string& name, const string& value) {
inline void set(const std::string_view name, const string& value) {
if (_locked(name)) stringsTmp.insert_or_assign(name, value);
else strings.at(name) = value;
}
//* Flip config key bool <name>
void flip(const string& name);
void flip(const std::string_view name);
//* Lock config and cache changes until unlocked
void lock();