chore: initial commit

src/net/grunt/Timer.cpp

@@ -0,0 +1,70 @@
+#include "net/grunt/Timer.hpp"
+#include <common/Time.hpp>
+
+uint32_t Grunt::Timer::ThreadProc(void* param) {
+    auto timer = static_cast<Timer*>(param);
+
+    while (true) {
+        auto timeout = timer->Pump();
+
+        if (timer->m_event.Wait(timeout) == 0) {
+            break;
+        }
+    }
+
+    return 1;
+}
+
+Grunt::Timer::Timer() {
+    SThread::Create(Grunt::Timer::ThreadProc, this, this->m_thread, "GruntTimerEvt", 0);
+}
+
+void Grunt::Timer::Insert(Grunt::Timer::Event& newEvent) {
+    this->m_critSect.Enter();
+
+    newEvent.m_schedTime = OsGetAsyncTimeMsPrecise() + newEvent.m_interval;
+
+    for (auto event = this->m_eventList.Head(); event; event = this->m_eventList.Link(event)->Next()) {
+        // Keep event listed sorted by scheduled time
+        if (newEvent.m_schedTime - event->m_schedTime < 0) {
+            this->m_eventList.LinkNode(&newEvent, 2, event);
+
+            this->m_critSect.Leave();
+
+            return;
+        }
+    }
+
+    this->m_eventList.LinkToTail(&newEvent);
+
+    this->m_critSect.Leave();
+}
+
+uint32_t Grunt::Timer::Pump() {
+    this->m_critSect.Enter();
+
+    auto* event = this->m_eventList.Head();
+
+    if (!event) {
+        this->m_critSect.Leave();
+
+        return 100;
+    }
+
+    int32_t timeUntilSched = event->m_schedTime - OsGetAsyncTimeMsPrecise();
+
+    if (timeUntilSched <= 0) {
+        this->m_eventList.UnlinkNode(event);
+
+        this->m_critSect.Leave();
+
+        event->Call();
+        this->Insert(*event);
+
+        return 100;
+    }
+
+    this->m_critSect.Leave();
+
+    return timeUntilSched;
+}