Merge pull request #99 from chenht2022/main

Adapt Windows

ktransformers/ktransformers_ext/cpu_backend/task_queue.cpp

@@ -4,7 +4,7 @@
  * @Date     : 2024-07-17 12:25:51
  * @Version   : 1.0.0
  * @LastEditors : chenht2022
- * @LastEditTime : 2024-07-25 10:33:44
+ * @LastEditTime : 2024-10-09 11:08:10
  * @Copyright (c) 2024 by KVCache.AI, All Rights Reserved.
  **/
 #include "task_queue.h"
@@ -17,8 +17,9 @@ TaskQueue::TaskQueue() {
 
 TaskQueue::~TaskQueue() {
     {
-        std::unique_lock<std::mutex> lock(mutex);
+        mutex.lock();
         exit_flag.store(true, std::memory_order_seq_cst);
+        mutex.unlock();
     }
     cv.notify_all();
     if (worker.joinable()) {
@@ -28,9 +29,10 @@ TaskQueue::~TaskQueue() {
 
 void TaskQueue::enqueue(std::function<void()> task) {
     {
-        std::unique_lock<std::mutex> lock(mutex);
+        mutex.lock();
         tasks.push(task);
         sync_flag.store(false, std::memory_order_seq_cst);
+        mutex.unlock();
     }
     cv.notify_one();
 }
@@ -44,20 +46,22 @@ void TaskQueue::processTasks() {
     while (true) {
         std::function<void()> task;
         {
-            std::unique_lock<std::mutex> lock(mutex);
+            mutex.lock();
-            cv.wait(lock, [this]() { return !tasks.empty() || exit_flag.load(std::memory_order_seq_cst); });
+            cv.wait(mutex, [this]() { return !tasks.empty() || exit_flag.load(std::memory_order_seq_cst); });
             if (exit_flag.load(std::memory_order_seq_cst) && tasks.empty()) {
                 return;
             }
             task = tasks.front();
             tasks.pop();
+            mutex.unlock();
         }
         task();
         {
-            std::lock_guard<std::mutex> lock(mutex);
+            mutex.lock();
             if (tasks.empty()) {
                 sync_flag.store(true, std::memory_order_seq_cst);
             }
+            mutex.unlock();
         }
     }
 }

ktransformers/ktransformers_ext/cpu_backend/task_queue.h

@@ -3,8 +3,8 @@
  * @Author    : chenht2022
  * @Date     : 2024-07-16 10:43:18
  * @Version   : 1.0.0
- * @LastEditors  : chenxl 
+ * @LastEditors : chenht
- * @LastEditTime : 2024-08-08 04:23:51
+ * @LastEditTime : 2024-10-09 11:08:07
  * @Copyright (c) 2024 by KVCache.AI, All Rights Reserved.
  **/
 #ifndef CPUINFER_TASKQUEUE_H
@@ -24,34 +24,94 @@
 class custom_mutex {
    private:
 #ifdef _WIN32
-    HANDLE  global_mutex;
+    CRITICAL_SECTION cs;
 #else
-    std::mutex global_mutex;
+    std::mutex mtx;
 #endif
 
    public:
-    custom_mutex()
+    custom_mutex() {
-    {
 #ifdef _WIN32
-        HANDLE  global_mutex;
+        InitializeCriticalSection(&cs);
+#else
+        // No initialization required for std::mutex
 #endif
     }
 
-    void lock()
+    ~custom_mutex() {
-    {
 #ifdef _WIN32
-        WaitForSingleObject(global_mutex, INFINITE);
+        DeleteCriticalSection(&cs);
-#else
-        global_mutex.lock();
 #endif
     }
 
-    void unlock()
+    void lock() {
-    {
 #ifdef _WIN32
-        ReleaseMutex(global_mutex);
+        EnterCriticalSection(&cs);
 #else
-        global_mutex.unlock();
+        mtx.lock();
+#endif
+    }
+
+    void unlock() {
+#ifdef _WIN32
+        LeaveCriticalSection(&cs);
+#else
+        mtx.unlock();
+#endif
+    }
+
+#ifdef _WIN32
+    CRITICAL_SECTION* get_handle() {
+        return &cs;
+    }
+#else
+    std::mutex* get_handle() {
+        return &mtx;
+    }
+#endif
+};
+
+class custom_condition_variable {
+   private:
+#ifdef _WIN32
+    CONDITION_VARIABLE cond_var;
+#else
+    std::condition_variable cond_var;
+#endif
+
+   public:
+    custom_condition_variable() {
+#ifdef _WIN32
+        InitializeConditionVariable(&cond_var);
+#endif
+    }
+
+    template <typename Predicate>
+    void wait(custom_mutex& mutex, Predicate pred) {
+#ifdef _WIN32
+        while (!pred()) {
+            SleepConditionVariableCS(&cond_var, mutex.get_handle(), INFINITE);
+        }
+#else
+        std::unique_lock<std::mutex> lock(*mutex.get_handle(), std::adopt_lock);
+        cond_var.wait(lock, pred);
+        lock.release();
+#endif
+    }
+
+    void notify_one() {
+#ifdef _WIN32
+        WakeConditionVariable(&cond_var);
+#else
+        cond_var.notify_one();
+#endif
+    }
+
+    void notify_all() {
+#ifdef _WIN32
+        WakeAllConditionVariable(&cond_var);
+#else
+        cond_var.notify_all();
 #endif
     }
 };
@@ -69,8 +129,8 @@ class TaskQueue {
     void processTasks();
 
     std::queue<std::function<void()>> tasks;
-    std::mutex mutex;
+    custom_mutex mutex;
-    std::condition_variable cv;
+    custom_condition_variable cv;
     std::thread worker;
     std::atomic<bool> sync_flag;
     std::atomic<bool> exit_flag;