kernel: event_queue: `sceKernelAddHRTimerEvent` implementation

src/common/debug.h

@@ -41,6 +41,8 @@ enum MarkersPallete : int {
 #define RENDERER_TRACE ZoneScopedC(RendererMarkerColor)
 #define HLE_TRACE ZoneScopedC(HleMarkerColor)
 
+#define TRACE_HINT(str) ZoneText(str.c_str(), str.size())
+
 #define TRACE_WARN(msg)                                                                            \
     [](const auto& msg) { TracyMessageC(msg.c_str(), msg.size(), tracy::Color::DarkOrange); }(msg);
 #define TRACE_ERROR(msg)                                                                           \

src/core/libraries/kernel/event_queue.cpp

@@ -8,13 +8,19 @@ namespace Libraries::Kernel {
 
 EqueueInternal::~EqueueInternal() = default;
 
-int EqueueInternal::addEvent(const EqueueEvent& event) {
+int EqueueInternal::addEvent(EqueueEvent& event) {
     std::scoped_lock lock{m_mutex};
 
-    ASSERT(!event.isTriggered);
+    const auto start_clock = std::chrono::high_resolution_clock::now();
+    event.filter.added_time_us =
+        std::chrono::time_point_cast<std::chrono::microseconds>(start_clock);
 
-    // TODO check if event is already exists and return it. Currently we just add in m_events array
+    const auto& it = std::ranges::find(m_events, event);
+    if (it != m_events.cend()) {
+        *it = event;
+    } else {
         m_events.push_back(event);
+    }
     return 0;
 }
 
@@ -50,8 +56,8 @@ bool EqueueInternal::triggerEvent(u64 ident, s16 filter, void* trigger_data) {
         std::scoped_lock lock{m_mutex};
 
         for (auto& event : m_events) {
-            if (event.event.ident == ident) { // event filter?
-                event.trigger(trigger_data);
+            if (event.event.ident == ident && event.event.filter == filter) {
+                event.Trigger(trigger_data);
             }
         }
     }
@@ -64,9 +70,9 @@ int EqueueInternal::getTriggeredEvents(SceKernelEvent* ev, int num) {
     int ret = 0;
 
     for (auto& event : m_events) {
-        if (event.isTriggered) {
+        if (event.IsTriggered()) {
             ev[ret++] = event.event;
-            event.reset();
+            event.Reset();
         }
     }
 

src/core/libraries/kernel/event_queue.h

@@ -70,24 +70,44 @@ struct SceKernelEvent {
 
 struct Filter {
     void* data = nullptr;
+    std::chrono::time_point<std::chrono::steady_clock, std::chrono::microseconds> added_time_us;
 };
 
 struct EqueueEvent {
-    bool isTriggered = false;
     SceKernelEvent event;
     Filter filter;
 
-    void reset() {
-        isTriggered = false;
+    void Reset() {
+        is_triggered = false;
         event.fflags = 0;
         event.data = 0;
     }
 
-    void trigger(void* data) {
-        isTriggered = true;
+    void Trigger(void* data) {
+        is_triggered = true;
         event.fflags++;
         event.data = reinterpret_cast<uintptr_t>(data);
     }
+
+    bool IsTriggered() const {
+        if (event.filter == Kernel::EVFILT_HRTIMER) {
+            // For HR timers we don't want to waste time on spawning waiters. Instead, we will check
+            // for time out condition every time caller fetches the event status.
+            const auto now_clock = std::chrono::high_resolution_clock::now();
+            const auto now_time_us =
+                std::chrono::time_point_cast<std::chrono::microseconds>(now_clock);
+            const auto delta = (now_time_us - filter.added_time_us).count();
+            return (s64(event.data) - delta) <= 0;
+        }
+        return is_triggered;
+    }
+
+    bool operator==(const EqueueEvent& ev) const {
+        return ev.event.ident == event.ident;
+    }
+
+private:
+    bool is_triggered = false;
 };
 
 class EqueueInternal {
@@ -97,7 +117,10 @@ public:
     void setName(const std::string& m_name) {
         this->m_name = m_name;
     }
-    int addEvent(const EqueueEvent& event);
+    const auto& GetName() const {
+        return m_name;
+    }
+    int addEvent(EqueueEvent& event);
     int removeEvent(u64 id);
     int waitForEvents(SceKernelEvent* ev, int num, u32 micros);
     bool triggerEvent(u64 ident, s16 filter, void* trigger_data);

src/core/libraries/kernel/event_queues.cpp

@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "common/assert.h"
+#include "common/debug.h"
 #include "common/logging/log.h"
 #include "core/libraries/error_codes.h"
 #include "core/libraries/kernel/event_queues.h"
@@ -43,7 +44,9 @@ int PS4_SYSV_ABI sceKernelDeleteEqueue(SceKernelEqueue eq) {
 
 int PS4_SYSV_ABI sceKernelWaitEqueue(SceKernelEqueue eq, SceKernelEvent* ev, int num, int* out,
                                      SceKernelUseconds* timo) {
-    LOG_INFO(Kernel_Event, "num = {}", num);
+    HLE_TRACE;
+    TRACE_HINT(eq->GetName());
+    LOG_INFO(Kernel_Event, "equeue = {} num = {}", eq->GetName(), num);
 
     if (eq == nullptr) {
         return ORBIS_KERNEL_ERROR_EBADF;
@@ -84,7 +87,6 @@ int PS4_SYSV_ABI sceKernelAddUserEvent(SceKernelEqueue eq, int id) {
     }
 
     Kernel::EqueueEvent event{};
-    event.isTriggered = false;
     event.event.ident = id;
     event.event.filter = Kernel::EVFILT_USER;
     event.event.udata = 0;
@@ -101,7 +103,6 @@ int PS4_SYSV_ABI sceKernelAddUserEventEdge(SceKernelEqueue eq, int id) {
     }
 
     Kernel::EqueueEvent event{};
-    event.isTriggered = false;
     event.event.ident = id;
     event.event.filter = Kernel::EVFILT_USER;
     event.event.udata = 0;
@@ -112,6 +113,28 @@ int PS4_SYSV_ABI sceKernelAddUserEventEdge(SceKernelEqueue eq, int id) {
     return eq->addEvent(event);
 }
 
+s32 PS4_SYSV_ABI sceKernelAddHRTimerEvent(SceKernelEqueue eq, int id, timespec* ts, void* udata) {
+    if (eq == nullptr) {
+        return ORBIS_KERNEL_ERROR_EBADF;
+    }
+
+    if (ts->tv_sec > 100 || ts->tv_nsec < 100'000) {
+        return ORBIS_KERNEL_ERROR_EINVAL;
+    }
+    ASSERT(ts->tv_nsec > 1000); // assume 1us granularity
+    const auto total_us = ts->tv_sec * 1000'000 + ts->tv_nsec / 1000;
+
+    Kernel::EqueueEvent event{};
+    event.event.ident = id;
+    event.event.filter = Kernel::EVFILT_HRTIMER;
+    event.event.flags = 0x11;
+    event.event.fflags = 0;
+    event.event.data = total_us;
+    event.event.udata = udata;
+
+    return eq->addEvent(event);
+}
+
 void* PS4_SYSV_ABI sceKernelGetEventUserData(const SceKernelEvent* ev) {
     if (!ev) {
         return nullptr;

src/core/libraries/kernel/event_queues.h

@@ -19,5 +19,6 @@ int PS4_SYSV_ABI sceKernelTriggerUserEvent(SceKernelEqueue eq, int id, void* uda
 int PS4_SYSV_ABI sceKernelDeleteUserEvent(SceKernelEqueue eq, int id);
 int PS4_SYSV_ABI sceKernelAddUserEvent(SceKernelEqueue eq, int id);
 int PS4_SYSV_ABI sceKernelAddUserEventEdge(SceKernelEqueue eq, int id);
+s32 PS4_SYSV_ABI sceKernelAddHRTimerEvent(SceKernelEqueue eq, int id, timespec* ts, void* udata);
 
 } // namespace Libraries::Kernel

src/core/libraries/kernel/libkernel.cpp

@@ -328,6 +328,7 @@ void LibKernel_Register(Core::Loader::SymbolsResolver* sym) {
     LIB_FUNCTION("vz+pg2zdopI", "libkernel", 1, "libkernel", 1, 1, sceKernelGetEventUserData);
     LIB_FUNCTION("4R6-OvI2cEA", "libkernel", 1, "libkernel", 1, 1, sceKernelAddUserEvent);
     LIB_FUNCTION("WDszmSbWuDk", "libkernel", 1, "libkernel", 1, 1, sceKernelAddUserEventEdge);
+    LIB_FUNCTION("R74tt43xP6k", "libkernel", 1, "libkernel", 1, 1, sceKernelAddHRTimerEvent);
     LIB_FUNCTION("F6e0kwo4cnk", "libkernel", 1, "libkernel", 1, 1, sceKernelTriggerUserEvent);
     LIB_FUNCTION("LJDwdSNTnDg", "libkernel", 1, "libkernel", 1, 1, sceKernelDeleteUserEvent);
 

src/core/libraries/videoout/video_out.cpp

@@ -48,7 +48,6 @@ s32 PS4_SYSV_ABI sceVideoOutAddFlipEvent(Kernel::SceKernelEqueue eq, s32 handle,
     }
 
     Kernel::EqueueEvent event{};
-    event.isTriggered = false;
     event.event.ident = SCE_VIDEO_OUT_EVENT_FLIP;
     event.event.filter = Kernel::EVFILT_VIDEO_OUT;
     event.event.udata = udata;
@@ -73,7 +72,6 @@ s32 PS4_SYSV_ABI sceVideoOutAddVblankEvent(Kernel::SceKernelEqueue eq, s32 handl
     }
 
     Kernel::EqueueEvent event{};
-    event.isTriggered = false;
     event.event.ident = SCE_VIDEO_OUT_EVENT_VBLANK;
     event.event.filter = Kernel::EVFILT_VIDEO_OUT;
     event.event.udata = udata;