system/serenity
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Improve ps output.

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This commit is contained in:
Andreas Kling 2018-10-29 23:02:07 +01:00
parent b1ff62f605
commit 4259ffb080
1 changed files with 20 additions and 4 deletions
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24
Kernel/ProcFileSystem.cpp
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@ -178,19 +178,35 @@ ByteBuffer procfs$kmalloc()
return buffer;
}
static const char* toString(Task::State state)
{
switch (state) {
case Task::Invalid: return "Invalid";
case Task::Runnable: return "Runnable";
case Task::Running: return "Running";
case Task::Terminated: return "Term";
case Task::Crashing: return "Crash";
case Task::Exiting: return "Exit";
case Task::BlockedSleep: return "Sleep";
case Task::BlockedWait: return "Wait";
case Task::BlockedRead: return "Read";
}
ASSERT_NOT_REACHED();
return nullptr;
}
ByteBuffer procfs$summary()
{
InterruptDisabler disabler;
auto tasks = Task::allTasks();
auto buffer = ByteBuffer::createUninitialized(tasks.size() * 256);
char* ptr = (char*)buffer.pointer();
ptr += ksprintf(ptr, "PID OWNER STATE PPID NSCHED FDS NAME\n");
ptr += ksprintf(ptr, "PID OWNER STATE PPID NSCHED FDS NAME\n");
for (auto* task : tasks) {
ptr += ksprintf(ptr, "%w %w:%w %b %w %x %w %s\n",
ptr += ksprintf(ptr, "% 5u % 4u % 8s % 5u % 10u % 3u %s\n",
task->pid(),
task->uid(),
task->gid(),
task->state(),
toString(task->state()),
task->parentPID(),
task->timesScheduled(),
task->fileHandleCount(),