RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-27 06:27:45 +00:00
Code Issues Activity Actions

ps: Perform filtering step before the output loop

Browse source 
Previously we did some of the filtering before the loop, and some inside
it, which made things awkward to reason about. This also lets us avoid
generating a TTY string for each process unless there's a column for it.
This commit is contained in:
Sam Atkins 2023-05-15 20:25:06 +01:00 • committed by Andreas Kling
parent 3aff3c610a
commit cf998bc082
1 changed files with 8 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

23
Userland/Utilities/ps.cpp
View file

@ -145,11 +145,17 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
auto& processes = all_processes.processes; auto& processes = all_processes.processes;
// Filter
if (!pid_list.is_empty()) { if (!pid_list.is_empty()) {
every_process_flag = true;
processes.remove_all_matching([&](auto& process) { return !pid_list.contains_slow(process.pid); }); processes.remove_all_matching([&](auto& process) { return !pid_list.contains_slow(process.pid); });
} else if (every_terminal_process_flag) {
processes.remove_all_matching([&](auto& process) { return process.tty.is_empty(); });
} else if (!every_process_flag) {
// Default is to show processes from the current TTY
processes.remove_all_matching([&](Core::ProcessStatistics& process) { return process.tty.view() != this_pseudo_tty_name.bytes_as_string_view(); });
} }
// Sort
if (provided_quick_pid_list) { if (provided_quick_pid_list) {
auto processes_sort_predicate = [&pid_list](auto& a, auto& b) { auto processes_sort_predicate = [&pid_list](auto& a, auto& b) {
return pid_list.find_first_index(a.pid).value() < pid_list.find_first_index(b.pid).value(); return pid_list.find_first_index(a.pid).value() < pid_list.find_first_index(b.pid).value();
@ -169,22 +175,9 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
rows.unchecked_append(move(header)); rows.unchecked_append(move(header));
for (auto const& process : processes) { for (auto const& process : processes) {
auto tty = TRY(String::from_deprecated_string(process.tty));
if (every_process_flag) {
// Don't skip any.
} else if (every_terminal_process_flag) {
if (tty.is_empty())
continue;
} else if (tty != this_pseudo_tty_name) {
continue;
}
Vector<String> row; Vector<String> row;
TRY(row.try_resize(columns.size())); TRY(row.try_resize(columns.size()));
if (tty == "")
tty = "n/a"_short_string;
if (uid_column.has_value()) if (uid_column.has_value())
row[*uid_column] = TRY(String::from_deprecated_string(process.username)); row[*uid_column] = TRY(String::from_deprecated_string(process.username));
if (pid_column.has_value()) if (pid_column.has_value())
@ -196,7 +189,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
if (sid_column.has_value()) if (sid_column.has_value())
row[*sid_column] = TRY(String::number(process.sid)); row[*sid_column] = TRY(String::number(process.sid));
if (tty_column.has_value()) if (tty_column.has_value())
row[*tty_column] = tty; row[*tty_column] = process.tty == "" ? "n/a"_short_string : TRY(String::from_deprecated_string(process.tty));
if (state_column.has_value()) if (state_column.has_value())
row[*state_column] = process.threads.is_empty() row[*state_column] = process.threads.is_empty()
? "Zombie"_short_string ? "Zombie"_short_string