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587f9af960
Also add slightly richer parse errors now that we can include a string literal with returned errors. This will allow us to use TRY() when working with JSON data.
55 lines
1.5 KiB
C++
55 lines
1.5 KiB
C++
/*
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* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Assertions.h>
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#include <AK/ByteBuffer.h>
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#include <AK/JsonArray.h>
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#include <AK/JsonObject.h>
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#include <LibCore/File.h>
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#include <stdio.h>
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#include <unistd.h>
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int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv)
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{
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if (pledge("stdio rpath", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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if (unveil("/proc/interrupts", "r") < 0) {
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perror("unveil");
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return 1;
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}
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unveil(nullptr, nullptr);
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auto proc_interrupts = Core::File::construct("/proc/interrupts");
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if (!proc_interrupts->open(Core::OpenMode::ReadOnly)) {
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warnln("Error: {}", proc_interrupts->error_string());
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return 1;
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}
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if (pledge("stdio", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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outln(" CPU0");
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auto file_contents = proc_interrupts->read_all();
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auto json = JsonValue::from_string(file_contents).release_value_but_fixme_should_propagate_errors();
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json.as_array().for_each([](auto& value) {
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auto& handler = value.as_object();
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auto purpose = handler.get("purpose").to_string();
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auto interrupt = handler.get("interrupt_line").to_string();
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auto controller = handler.get("controller").to_string();
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auto call_count = handler.get("call_count").to_string();
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outln("{:>4}: {:10} {:10} {:30}", interrupt, call_count, controller, purpose);
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});
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return 0;
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}
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