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Scheduler: Use monotonic time for blocking threads

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This commit is contained in:
Liav A 2020-03-14 00:59:45 +02:00 • committed by Andreas Kling
parent b2585b3577
commit b4c92c24ee
2 changed files with 10 additions and 4 deletions
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12
Kernel/Scheduler.cpp
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@ -67,6 +67,11 @@ static u32 time_slice_for(const Thread& thread)
return 10;
}
timeval Scheduler::time_since_boot()
{
return { TimeManagement::the().seconds_since_boot(), (suseconds_t)TimeManagement::the().ticks_this_second() * 1000 };
}
Thread* g_finalizer;
Thread* g_colonel;
WaitQueue* g_finalizer_wait_queue;
@ -138,7 +143,7 @@ Thread::WriteBlocker::WriteBlocker(const FileDescription& description)
if (description.is_socket()) {
auto& socket = *description.socket();
if (socket.has_send_timeout()) {
timeval deadline = kgettimeofday();
timeval deadline = Scheduler::time_since_boot();
deadline.tv_sec += socket.send_timeout().tv_sec;
deadline.tv_usec += socket.send_timeout().tv_usec;
deadline.tv_sec += (socket.send_timeout().tv_usec / 1000000) * 1;
@ -163,7 +168,7 @@ Thread::ReadBlocker::ReadBlocker(const FileDescription& description)
if (description.is_socket()) {
auto& socket = *description.socket();
if (socket.has_receive_timeout()) {
timeval deadline = kgettimeofday();
timeval deadline = Scheduler::time_since_boot();
deadline.tv_sec += socket.receive_timeout().tv_sec;
deadline.tv_usec += socket.receive_timeout().tv_usec;
deadline.tv_sec += (socket.receive_timeout().tv_usec / 1000000) * 1;
@ -325,8 +330,7 @@ bool Scheduler::pick_next()
return context_switch(*g_colonel);
}
struct timeval now;
kgettimeofday(now);
auto now = time_since_boot();
auto now_sec = now.tv_sec;
auto now_usec = now.tv_usec;