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killall: Port to LibMain and LibCore

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This commit is contained in:
Zack Penn 2022-02-18 23:37:01 -06:00 • committed by Andreas Kling
parent 681b643093
commit a65e1fa828
2 changed files with 15 additions and 14 deletions
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28
Userland/Utilities/killall.cpp
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@ -1,14 +1,16 @@
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, Zachary Penn <zack@sysdevs.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/String.h>
#include <LibCore/ProcessStatisticsReader.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <ctype.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
static void print_usage_and_exit()
@ -17,7 +19,7 @@ static void print_usage_and_exit()
exit(1);
}
static int kill_all(const String& process_name, const unsigned signum)
static ErrorOr<int> kill_all(const String& process_name, const unsigned signum)
{
auto all_processes = Core::ProcessStatisticsReader::get_all();
if (!all_processes.has_value())
@ -25,46 +27,44 @@ static int kill_all(const String& process_name, const unsigned signum)
for (auto& process : all_processes.value().processes) {
if (process.name == process_name) {
int ret = kill(process.pid, signum);
if (ret < 0)
perror("kill");
TRY(Core::System::kill(process.pid, signum));
}
}
return 0;
}
int main(int argc, char** argv)
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
unsigned signum = SIGTERM;
int name_argi = 1;
if (argc != 2 && argc != 3)
if (arguments.argc != 2 && arguments.argc != 3)
print_usage_and_exit();
if (argc == 3) {
if (arguments.argc == 3) {
name_argi = 2;
if (argv[1][0] != '-')
if (arguments.argv[1][0] != '-')
print_usage_and_exit();
Optional<unsigned> number;
if (isalpha(argv[1][1])) {
int value = getsignalbyname(&argv[1][1]);
if (isalpha(arguments.argv[1][1])) {
int value = getsignalbyname(&arguments.argv[1][1]);
if (value >= 0 && value < NSIG)
number = value;
}
if (!number.has_value())
number = String(&argv[1][1]).to_uint();
number = String(&arguments.argv[1][1]).to_uint();
if (!number.has_value()) {
warnln("'{}' is not a valid signal name or number", &argv[1][1]);
warnln("'{}' is not a valid signal name or number", &arguments.argv[1][1]);
return 2;
}
signum = number.value();
}
return kill_all(argv[name_argi], signum);
return kill_all(arguments.strings[name_argi], signum);
}