[ViewVC] Diff of: cebix/BasiliskII/src/Windows/timer

Comparing BasiliskII/src/Windows/timer_windows.cpp (file contents):
Revision 1.3 by gbeauche, 2004-12-03T22:05:36Z vs.
Revision 1.6 by gbeauche, 2006-05-01T06:12:50Z

+/*
+ *  timer_windows.cpp - Time Manager emulation, Windows specific stuff
-<
+ *  Basilisk II (C) 1997-2004 Christian Bauer
->
+ *  Basilisk II (C) 1997-2005 Christian Bauer
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+#define USECS2TICKS(USECS) (((uint64)(USECS) * frequency) / 1000000)
+#define TICKS2USECS(TICKS) (((uint64)(TICKS) * 1000000) / frequency)
-+
+// From main_windows.cpp
-+
+extern HANDLE emul_thread;
-+
+// Global variables
+static uint32 frequency;                                // CPU frequency in Hz (< 4 GHz)
+static tm_time_t mac_boot_ticks;
+        // millisecond resolution anyway
+        Sleep(usec / 1000);
-+
-+
-+
+/*
-+
+ *  Suspend emulator thread, virtual CPU in idle mode
-+
+ */
-+
-+
+struct idle_sentinel {
-+
+        idle_sentinel();
-+
+        ~idle_sentinel();
-+
+};
-+
+static idle_sentinel idle_sentinel;
-+
-+
+static int idle_sem_ok = -1;
-+
+static HANDLE idle_sem = NULL;
-+
-+
+static HANDLE idle_lock = NULL;
-+
+#define LOCK_IDLE WaitForSingleObject(idle_lock, INFINITE)
-+
+#define UNLOCK_IDLE ReleaseMutex(idle_lock)
-+
-+
+idle_sentinel::idle_sentinel()
-+
+{
-+
+        LOCK_IDLE;
-+
+        idle_sem_ok = 1;
-+
+        if ((idle_sem = CreateSemaphore(0, 0, 1, NULL)) == NULL)
-+
+                idle_sem_ok = 0;
-+
+        if ((idle_lock = CreateMutex(NULL, FALSE, NULL)) == NULL)
-+
+                idle_sem_ok = 0;
-+
+        UNLOCK_IDLE;
-+
+}
-+
-+
+idle_sentinel::~idle_sentinel()
-+
+{
-+
+        if (idle_lock) {
-+
+                ReleaseMutex(idle_lock);
-+
+                CloseHandle(idle_lock);
-+
+        }
-+
+        if (idle_sem) {
-+
+                ReleaseSemaphore(idle_sem, 1, NULL);
-+
+                CloseHandle(idle_sem);
-+
+        }
-+
+}
-+
-+
+void idle_wait(void)
-+
+{
-+
+        LOCK_IDLE;
-+
+        if (idle_sem_ok > 0) {
-+
+                idle_sem_ok++;
-+
+                UNLOCK_IDLE;
-+
+                WaitForSingleObject(idle_sem, INFINITE);
-+
+                return;
-+
+        }
-+
+        UNLOCK_IDLE;
-+
-+
+        // Fallback: sleep 10 ms (this should not happen though)
-+
+        Delay_usec(10000);
-+
+}
-+
-+
-+
+/*
-+
+ *  Resume execution of emulator thread, events just arrived
-+
+ */
-+
-+
+void idle_resume(void)
-+
+{
-+
+        LOCK_IDLE;
-+
+        if (idle_sem_ok > 1) {
-+
+                idle_sem_ok--;
-+
+                UNLOCK_IDLE;
-+
+                ReleaseSemaphore(idle_sem, 1, NULL);
-+
+                return;
-+
+        }
-+
+        UNLOCK_IDLE;
-+
+}

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Comparing BasiliskII/src/Windows/timer_windows.cpp (file contents): Revision 1.3 by gbeauche, 2004-12-03T22:05:36Z vs. Revision 1.6 by gbeauche, 2006-05-01T06:12:50Z

Diff Legend

Comparing BasiliskII/src/Windows/timer_windows.cpp (file contents):
Revision 1.3 by gbeauche, 2004-12-03T22:05:36Z vs.
Revision 1.6 by gbeauche, 2006-05-01T06:12:50Z