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ps: Port to LibMain :^)

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This commit is contained in:
Andreas Kling 2021-11-23 15:42:17 +01:00
parent 120168203e
commit e6579e7029
Notes: sideshowbarker 2024-07-18 00:47:44 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/e6579e70295
2 changed files with 15 additions and 29 deletions
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1
Userland/Utilities/CMakeLists.txt
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@ -88,6 +88,7 @@ target_link_libraries(pgrep LibRegex)
target_link_libraries(pls LibCrypt)
target_link_libraries(pmap LibMain)
target_link_libraries(pro LibProtocol)
target_link_libraries(ps LibMain)
target_link_libraries(run-tests LibRegex)
target_link_libraries(shot LibGUI)
target_link_libraries(sql LibLine LibSQL LibIPC)

43
Userland/Utilities/ps.cpp
View File

@ -7,34 +7,19 @@
#include <AK/QuickSort.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/ProcessStatisticsReader.h>
#include <stdio.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <unistd.h>
int main(int argc, char** argv)
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
if (pledge("stdio rpath tty", nullptr) < 0) {
perror("pledge");
return 1;
}
TRY(Core::System::pledge("stdio rpath tty", nullptr));
String this_tty = ttyname(STDIN_FILENO);
if (pledge("stdio rpath", nullptr) < 0) {
perror("pledge");
return 1;
}
if (unveil("/proc/all", "r") < 0) {
perror("unveil");
return 1;
}
if (unveil("/etc/passwd", "r") < 0) {
perror("unveil");
return 1;
}
unveil(nullptr, nullptr);
TRY(Core::System::pledge("stdio rpath", nullptr));
TRY(Core::System::unveil("/proc/all", "r"));
TRY(Core::System::unveil("/etc/passwd", "r"));
TRY(Core::System::unveil(nullptr, nullptr));
enum class Alignment {
Left,
@ -56,7 +41,7 @@ int main(int argc, char** argv)
args_parser.add_option(every_process_flag, "Show every process", nullptr, 'e');
args_parser.add_option(full_format_flag, "Full format", nullptr, 'f');
args_parser.add_option(pid_list, "A comma-separated list of PIDs. Only processes matching those PIDs will be selected", nullptr, 'q', "pid-list");
args_parser.parse(argc, argv);
args_parser.parse(arguments);
Vector<Column> columns;
@ -124,12 +109,12 @@ int main(int argc, char** argv)
}
Vector<Vector<String>> rows;
rows.ensure_capacity(1 + processes.size());
TRY(rows.try_ensure_capacity(1 + processes.size()));
Vector<String> header;
header.ensure_capacity(columns.size());
TRY(header.try_ensure_capacity(columns.size()));
for (auto& column : columns)
header.append(column.title);
header.unchecked_append(column.title);
rows.append(move(header));
for (auto const& process : processes) {
@ -146,7 +131,7 @@ int main(int argc, char** argv)
auto* state = process.threads.is_empty() ? "Zombie" : process.threads.first().state.characters();
Vector<String> row;
row.resize(columns.size());
TRY(row.try_resize(columns.size()));
if (uid_column != -1)
row[uid_column] = process.username;
@ -165,7 +150,7 @@ int main(int argc, char** argv)
if (cmd_column != -1)
row[cmd_column] = process.name;
rows.append(move(row));
TRY(rows.try_append(move(row)));
}
for (size_t i = 0; i < columns.size(); i++) {