1 files changed, 141 insertions, 0 deletions
diff --git a/src/VBox/Runtime/testcase/tstRTShMem.cpp b/src/VBox/Runtime/testcase/tstRTShMem.cpp
new file mode 100644
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--- /dev/null
+++ b/src/VBox/Runtime/testcase/tstRTShMem.cpp
@@ -0,0 +1,141 @@
+/* $Id: tstRTShMem.cpp $ */
+/** @file
+ * IPRT Testcase - RTShMem.
+ */
+
+/*
+ * Copyright (C) 2018-2019 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#include <iprt/shmem.h>
+
+#include <iprt/errcore.h>
+#include <iprt/log.h>
+#include <iprt/string.h>
+#include <iprt/test.h>
+
+
+/*********************************************************************************************************************************
+*   Global Variables                                                                                                             *
+*********************************************************************************************************************************/
+/** Global shared memory object used across all tests. */
+static RTSHMEM g_hShMem = NIL_RTSHMEM;
+/** Data to read/write initially. */
+static char g_szDataBefore[] = "Data before modification!";
+/** Data to read/write for the modification. */
+static char g_szDataAfter[] = "Data after modification!";
+
+
+
+static void tstRTShMem2(void)
+{
+    RTTestISub("Negative");
+
+    /** @todo */
+}
+
+
+static void tstRTShMem1(void)
+{
+    RTTestISub("Basics");
+
+    /* create and destroy. */
+
+    RTTESTI_CHECK_RC_RETV(RTShMemOpen(&g_hShMem, "tstRTShMem-Share", RTSHMEM_O_F_CREATE | RTSHMEM_O_F_READWRITE | RTSHMEM_O_F_MAYBE_EXEC,
+                                      _512K, 0),
+                          VINF_SUCCESS);
+    RTTESTI_CHECK_RETV(g_hShMem != NIL_RTSHMEM);
+
+    /* Query the size. */
+    size_t cbShMem = 0;
+    RTTESTI_CHECK_RC(RTShMemQuerySize(g_hShMem, &cbShMem), VINF_SUCCESS);
+    RTTESTI_CHECK(cbShMem == _512K);
+
+    /* Create a mapping. */
+    void *pvMap;
+    RTTESTI_CHECK_RC_RETV(RTShMemMapRegion(g_hShMem, 0, cbShMem, RTSHMEM_MAP_F_READ | RTSHMEM_MAP_F_WRITE, &pvMap), VINF_SUCCESS);
+    memset(pvMap, 0, cbShMem);
+    memcpy(pvMap, &g_szDataBefore[0], sizeof(g_szDataBefore));
+
+    /* Open the shared memory object and create a second mapping. */
+    RTSHMEM hShMemRead = NIL_RTSHMEM;
+    RTTESTI_CHECK_RC_RETV(RTShMemOpen(&hShMemRead, "tstRTShMem-Share", RTSHMEM_O_F_READWRITE | RTSHMEM_O_F_MAYBE_EXEC,
+                                      0, 0),
+                          VINF_SUCCESS);
+    RTTESTI_CHECK_RETV(hShMemRead != NIL_RTSHMEM);
+
+    void *pvMapRead = NULL;
+    RTTESTI_CHECK_RC(RTShMemQuerySize(hShMemRead, &cbShMem), VINF_SUCCESS);
+    RTTESTI_CHECK(cbShMem == _512K);
+    RTTESTI_CHECK_RC_RETV(RTShMemMapRegion(hShMemRead, 0, cbShMem, RTSHMEM_MAP_F_READ | RTSHMEM_MAP_F_WRITE, &pvMapRead), VINF_SUCCESS);
+    RTTESTI_CHECK(!memcmp(pvMapRead, &g_szDataBefore[0], sizeof(g_szDataBefore)));
+    RTTESTI_CHECK(!memcmp(pvMapRead, pvMap, cbShMem));
+
+    /* Alter the data in the first mapping and check that it is visible in the second one. */
+    memcpy(pvMap, &g_szDataAfter[0], sizeof(g_szDataAfter));
+    RTTESTI_CHECK(!memcmp(pvMapRead, &g_szDataAfter[0], sizeof(g_szDataAfter)));
+    RTTESTI_CHECK(!memcmp(pvMapRead, pvMap, cbShMem));
+
+    RTTESTI_CHECK_RC(RTShMemUnmapRegion(hShMemRead, pvMapRead), VINF_SUCCESS);
+    RTTESTI_CHECK_RC(RTShMemClose(hShMemRead), VINF_SUCCESS);
+    RTTESTI_CHECK_RC(RTShMemUnmapRegion(g_hShMem, pvMap), VINF_SUCCESS);
+    RTTESTI_CHECK_RC(RTShMemClose(g_hShMem), VINF_SUCCESS);
+    g_hShMem = NIL_RTSHMEM;
+}
+
+int main()
+{
+    RTTEST hTest;
+    int rc = RTTestInitAndCreate("tstRTShMem", &hTest);
+    if (rc)
+        return rc;
+    RTTestBanner(hTest);
+
+    /*
+     * The tests.
+     */
+    tstRTShMem1();
+    if (RTTestErrorCount(hTest) == 0)
+    {
+        bool fMayPanic = RTAssertMayPanic();
+        bool fQuiet    = RTAssertAreQuiet();
+        RTAssertSetMayPanic(false);
+        RTAssertSetQuiet(true);
+        tstRTShMem2();
+        RTAssertSetQuiet(fQuiet);
+        RTAssertSetMayPanic(fMayPanic);
+    }
+
+    if (g_hShMem != NIL_RTSHMEM)
+    {
+        RTTESTI_CHECK_RC(RTShMemClose(g_hShMem), VINF_SUCCESS);
+        g_hShMem = NIL_RTSHMEM;
+    }
+
+    /*
+     * Summary.
+     */
+    return RTTestSummaryAndDestroy(hTest);
+}
+