Changeset 20597 in vbox for trunk/src/VBox/Runtime/testcase

Timestamp:

Jun 15, 2009 5:54:06 PM (16 years ago)

Author:

vboxsync

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

48643

Message:

Runtime: improve SemRW testcase to also do recursion testing

File:

• trunk/src/VBox/Runtime/testcase/tstSemRW.cpp (modified) (4 diffs)

trunk/src/VBox/Runtime/testcase/tstSemRW.cpp

@@ -79 +79 @@
     {
         int rc;
+        unsigned readrec = RTRandU32Ex(0, 3);
+        unsigned writerec = RTRandU32Ex(0, 3);
+        /* Don't overdo recursion testing. */
+        if (readrec > 1)
+            readrec--;
+        if (writerec > 1)
+            writerec--;
+
         fWrite = (c100 < g_uWritePercent);
         if (fWrite)
         {
-            rc = RTSemRWRequestWriteNoResume(g_hSemRW, RT_INDEFINITE_WAIT);
-            if (RT_FAILURE(rc))
-            {
-                PrintError("%x: RTSemRWRequestWriteNoResume failed with %Rrc\n", rc);
-                break;
-            }
+            for (unsigned i = 0; i <= writerec; i++)
+            {
+                rc = RTSemRWRequestWriteNoResume(g_hSemRW, RT_INDEFINITE_WAIT);
+                if (RT_FAILURE(rc))
+                {
+                    PrintError("%x: RTSemRWRequestWriteNoResume failed with %Rrc\n", rc);
+                    break;
+                }
+            }
+            if (RT_FAILURE(rc))
+                break;
             if (ASMAtomicIncU32(&g_cbConcurrentWrite) != 1)
             {
@@ -114 +127 @@
             }
         }
+        for (unsigned i = 0; i < readrec; i++)
+        {
+            rc = RTSemRWRequestReadNoResume(g_hSemRW, RT_INDEFINITE_WAIT);
+            if (RT_FAILURE(rc))
+            {
+                PrintError("%x: RTSemRWRequestReadNoResume failed with %Rrc\n", rc);
+                break;
+            }
+        }
+        if (RT_FAILURE(rc))
+            break;
 
         /*
@@ -127 +151 @@
             RTThreadYield();
 
+        for (unsigned i = 0; i < readrec; i++)
+        {
+            rc = RTSemRWReleaseRead(g_hSemRW);
+            if (RT_FAILURE(rc))
+            {
+                PrintError("%x: RTSemRWReleaseRead failed with %Rrc\n", rc);
+                break;
+            }
+        }
+        if (RT_FAILURE(rc))
+            break;
+
         if (fWrite)
         {
@@ -139 +175 @@
                 break;
             }
-            rc = RTSemRWReleaseWrite(g_hSemRW);
-            if (RT_FAILURE(rc))
-            {
-                PrintError("%x: RTSemRWReleaseWrite failed with %Rrc\n", rc);
-                break;
+            for (unsigned i = 0; i <= writerec; i++)
+            {
+                rc = RTSemRWReleaseWrite(g_hSemRW);
+                if (RT_FAILURE(rc))
+                {
+                    PrintError("%x: RTSemRWReleaseWrite failed with %Rrc\n", rc);
+                    break;
+                }
             }
         }