mirror of
https://github.com/SerenityOS/serenity
synced 2024-09-06 17:06:31 +00:00
![Lenny Maiorani](/assets/img/avatar_default.png)
Problem: - `(void)` simply casts the expression to void. This is understood to indicate that it is ignored, but this is really a compiler trick to get the compiler to not generate a warning. Solution: - Use the `[[maybe_unused]]` attribute to indicate the value is unused. Note: - Functions taking a `(void)` argument list have also been changed to `()` because this is not needed and shows up in the same grep command.
76 lines
2.8 KiB
C++
76 lines
2.8 KiB
C++
/*
|
|
* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <AK/ByteBuffer.h>
|
|
#include <AK/JsonArray.h>
|
|
#include <AK/JsonObject.h>
|
|
#include <AK/String.h>
|
|
#include <LibCore/File.h>
|
|
#include <stdio.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);
|
|
ASSERT(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;
|
|
}
|