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LibCore: Use Core::Stream for ProcessStatisticsReader

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This commit is contained in:
Tim Schumacher 2022-12-08 14:50:31 +01:00 • committed by Linus Groh
parent e338a0656d
commit 8940f2da7f
18 changed files with 55 additions and 95 deletions
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16
Userland/Utilities/top.cpp
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@ -89,14 +89,12 @@ struct Snapshot {
u64 total_time_scheduled_kernel { 0 };
};
static Snapshot get_snapshot()
static ErrorOr<Snapshot> get_snapshot()
{
auto all_processes = Core::ProcessStatisticsReader::get_all();
if (!all_processes.has_value())
return {};
auto all_processes = TRY(Core::ProcessStatisticsReader::get_all());
Snapshot snapshot;
for (auto& process : all_processes.value().processes) {
for (auto& process : all_processes.processes) {
for (auto& thread : process.threads) {
ThreadData thread_data;
thread_data.tid = thread.tid;
@ -126,8 +124,8 @@ static Snapshot get_snapshot()
}
}
snapshot.total_time_scheduled = all_processes->total_time_scheduled;
snapshot.total_time_scheduled_kernel = all_processes->total_time_scheduled_kernel;
snapshot.total_time_scheduled = all_processes.total_time_scheduled;
snapshot.total_time_scheduled_kernel = all_processes.total_time_scheduled_kernel;
return snapshot;
}
@ -216,7 +214,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
enable_nonblocking_stdin();
Vector<ThreadData*> threads;
auto prev = get_snapshot();
auto prev = TRY(get_snapshot());
usleep(10000);
for (;;) {
if (g_window_size_changed) {
@ -224,7 +222,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
g_window_size_changed = false;
}
auto current = get_snapshot();
auto current = TRY(get_snapshot());
auto total_scheduled_diff = current.total_time_scheduled - prev.total_time_scheduled;
printf("\033[3J\033[H\033[2J");