Changeset 19919 in vbox for trunk/src/VBox/Runtime/r0drv

Timestamp:

May 22, 2009 5:02:55 PM (16 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

47616

Message:

iprt/r0drv: Darwin implementation of RTThreadPreempt*. Stub RTThreadPreemptIsPending on OS/2 and FreeBSD.

Location:

trunk/src/VBox/Runtime/r0drv/darwin

Files:

• initterm-r0drv-darwin.cpp (modified) (3 diffs)
• the-darwin-kernel.h (modified) (2 diffs)
• threadpreempt-r0drv-darwin.cpp (added)

trunk/src/VBox/Runtime/r0drv/darwin/initterm-r0drv-darwin.cpp

@@ -46 +46 @@
 
 
-
 int rtR0InitNative(void)
 {
@@ -55 +54 @@
     AssertReturn(g_pDarwinLockGroup, VERR_NO_MEMORY);
 
-    return VINF_SUCCESS;
+    /*
+     * Initialize the preemption hacks.
+     */
+    int rc = rtThreadPreemptDarwinInit();
+    if (RT_FAILURE(rc))
+        rtR0TermNative();
+
+    return rc;
 }
 
@@ -61 +67 @@
 void rtR0TermNative(void)
 {
+    /*
+     * Preemption hacks before the lock group.
+     */
+    rtThreadPreemptDarwinTerm();
+
     /*
      * Free the lock group.

trunk/src/VBox/Runtime/r0drv/darwin/the-darwin-kernel.h

@@ -79 +79 @@
 
 
+/* See osfmk/kern/ast.h. */
+#ifndef AST_PREEMPT
+# define AST_PREEMPT    UINT32_C(1)
+# define AST_QUANTUM    UINT32_C(2)
+# define AST_URGENT     UINT32_C(4)
+#endif
+
+
 __BEGIN_DECLS
 /* mach/vm_types.h */
@@ -121 +129 @@
 __BEGIN_DECLS
 extern lck_grp_t *g_pDarwinLockGroup;
+int  rtThreadPreemptDarwinInit(void);
+void rtThreadPreemptDarwinTerm(void);
 __END_DECLS