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3f3f45580a
Each of these strings would previously rely on StringView's char const* constructor overload, which would call __builtin_strlen on the string. Since we now have operator ""sv, we can replace these with much simpler versions. This opens the door to being able to remove StringView(char const*). No functional changes.
73 lines
2.5 KiB
C++
73 lines
2.5 KiB
C++
/*
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* Copyright (c) 2022, Undefine <undefine@undefine.pl>
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* Copyright (c) 2022, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Format.h>
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#include <AK/JsonArray.h>
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#include <AK/JsonObject.h>
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#include <AK/NumberFormat.h>
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#include <LibCore/File.h>
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#include <LibCore/System.h>
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#include <LibMain/Main.h>
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static void print_cache_info(StringView description, JsonObject const& cache_object)
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{
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outln("\t{}:", description);
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outln("\t\tSize: {}", human_readable_size(cache_object.get("size"sv).as_u32()));
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outln("\t\tLine size: {}", human_readable_size(cache_object.get("line_size"sv).as_u32()));
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};
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static void print_cpu_info(JsonObject const& value)
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{
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outln("CPU {}:", value.get("processor"sv).as_u32());
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outln("\tVendor ID: {}", value.get("vendor_id"sv).as_string());
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if (value.has("hypervisor_vendor_id"sv))
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outln("\tHypervisor Vendor ID: {}", value.get("hypervisor_vendor_id"sv).as_string());
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outln("\tBrand: {}", value.get("brand"sv).as_string());
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outln("\tFamily: {}", value.get("family"sv).as_u32());
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outln("\tModel: {}", value.get("model"sv).as_u32());
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outln("\tStepping: {}", value.get("stepping"sv).as_u32());
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outln("\tType: {}", value.get("type"sv).as_u32());
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auto& caches = value.get("caches"sv).as_object();
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if (caches.has("l1_data"sv))
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print_cache_info("L1 data cache"sv, caches.get("l1_data"sv).as_object());
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if (caches.has("l1_instruction"sv))
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print_cache_info("L1 instruction cache"sv, caches.get("l1_instruction"sv).as_object());
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if (caches.has("l2"sv))
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print_cache_info("L2 cache"sv, caches.get("l2"sv).as_object());
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if (caches.has("l3"sv))
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print_cache_info("L3 cache"sv, caches.get("l3"sv).as_object());
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out("\tFeatures: ");
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auto& features = value.get("features"sv).as_array();
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for (auto const& feature : features.values())
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out("{} ", feature.as_string());
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outln();
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}
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ErrorOr<int> serenity_main(Main::Arguments)
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{
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TRY(Core::System::pledge("stdio rpath"));
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TRY(Core::System::unveil("/proc/cpuinfo", "r"));
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TRY(Core::System::unveil(nullptr, nullptr));
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auto file = TRY(Core::File::open("/proc/cpuinfo", Core::OpenMode::ReadOnly));
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auto json = TRY(JsonValue::from_string(file->read_all()));
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auto& array = json.as_array();
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for (size_t i = 0; i < array.size(); i++) {
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print_cpu_info(array.at(i).as_object());
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if (i != array.size() - 1)
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outln();
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}
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return 0;
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}
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