ladybird/Userland/Utilities/lsirq.cpp
Brian Gianforcaro 1682f0b760 Everything: Move to SPDX license identifiers in all files.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.

See: https://spdx.dev/resources/use/#identifiers

This was done with the `ambr` search and replace tool.

 ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
2021-04-22 11:22:27 +02:00

56 lines
1.5 KiB
C++

/*
* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/ByteBuffer.h>
#include <AK/JsonArray.h>
#include <AK/JsonObject.h>
#include <LibCore/File.h>
#include <stdio.h>
#include <unistd.h>
int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv)
{
if (pledge("stdio rpath", nullptr) < 0) {
perror("pledge");
return 1;
}
if (unveil("/proc/interrupts", "r") < 0) {
perror("unveil");
return 1;
}
unveil(nullptr, nullptr);
auto proc_interrupts = Core::File::construct("/proc/interrupts");
if (!proc_interrupts->open(Core::IODevice::ReadOnly)) {
fprintf(stderr, "Error: %s\n", proc_interrupts->error_string());
return 1;
}
if (pledge("stdio", nullptr) < 0) {
perror("pledge");
return 1;
}
printf("%4s %-10s\n", " ", "CPU0");
auto file_contents = proc_interrupts->read_all();
auto json = JsonValue::from_string(file_contents);
VERIFY(json.has_value());
json.value().as_array().for_each([](auto& value) {
auto handler = value.as_object();
auto purpose = handler.get("purpose").to_string();
auto interrupt = handler.get("interrupt_line").to_string();
auto controller = handler.get("controller").to_string();
auto call_count = handler.get("call_count").to_string();
printf("%4s: %-10s %-10s %-30s\n",
interrupt.characters(), call_count.characters(), controller.characters(), purpose.characters());
});
return 0;
}