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nproc: Port to LibMain :^)

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This commit is contained in:
Andreas Kling 2021-11-22 19:43:26 +01:00
parent 561e50108d
commit f5927f167b
2 changed files with 8 additions and 15 deletions
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1
Userland/Utilities/CMakeLists.txt
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@ -79,6 +79,7 @@ target_link_libraries(markdown-check LibMarkdown)
target_link_libraries(matroska LibVideo) target_link_libraries(matroska LibVideo)
target_link_libraries(md LibMarkdown) target_link_libraries(md LibMarkdown)
target_link_libraries(notify LibGUI) target_link_libraries(notify LibGUI)
target_link_libraries(nproc LibMain)
target_link_libraries(open LibDesktop) target_link_libraries(open LibDesktop)
target_link_libraries(pape LibGUI) target_link_libraries(pape LibGUI)
target_link_libraries(passwd LibCrypt) target_link_libraries(passwd LibCrypt)

22
Userland/Utilities/nproc.cpp
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@ -6,25 +6,17 @@
#include <AK/JsonObject.h> #include <AK/JsonObject.h>
#include <LibCore/File.h> #include <LibCore/File.h>
#include <stdio.h> #include <LibMain/Main.h>
#include <unistd.h> #include <LibSystem/Wrappers.h>
int main() ErrorOr<int> serenity_main(Main::Arguments)
{ {
if (pledge("stdio rpath", nullptr) < 0) { TRY(System::pledge("stdio rpath", nullptr));
perror("pledge"); auto file = TRY(Core::File::open("/proc/cpuinfo", Core::OpenMode::ReadOnly));
return 1;
}
auto file = Core::File::construct("/proc/cpuinfo");
if (!file->open(Core::OpenMode::ReadOnly)) {
perror("Core::File::open()");
return 1;
}
auto buffer = file->read_all(); auto buffer = file->read_all();
auto json = JsonValue::from_string({ buffer }); auto json = TRY(JsonValue::from_string({ buffer }));
auto cpuinfo_array = json.value().as_array(); auto const& cpuinfo_array = json.as_array();
outln("{}", cpuinfo_array.size()); outln("{}", cpuinfo_array.size());
return 0; return 0;