Changeset 21651 for trunk/src/kernel32/initkernel32.cpp

Timestamp:

Jun 23, 2011, 3:06:59 PM (14 years ago)

Author:

dmik

Message:

kernel32: Show a message box if DLL initializaiton fails to make sure the user gets acceptable feedback in low memory conditions and in case of other unexpected runtime errors. See #23 for details.

File:

• trunk/src/kernel32/initkernel32.cpp (modified) (2 diffs)

trunk/src/kernel32/initkernel32.cpp

@@ -100 +100 @@
 /* calling this function.                                                   */
 /****************************************************************************/
-ULONG APIENTRY inittermKernel32(ULONG hModule, ULONG ulFlag)
+static ULONG APIENTRY inittermKernel32_internal(ULONG hModule, ULONG ulFlag)
 {
     size_t i;
@@ -295 +295 @@
 //******************************************************************************
 //******************************************************************************
+ULONG APIENTRY inittermKernel32(ULONG hModule, ULONG ulFlag)
+{
+    ULONG rc = inittermKernel32_internal(hModule, ulFlag);
+
+    if (ulFlag == 0 && rc == 0)
+    {
+        static const char msg[] =
+            "Failed to initialize the KERNEL32 library.\n\r"
+            "\n\r"
+            "It is possible that there is not enough memory in the system to "
+            "run this application. Please close other applications and try "
+            "again. If the problem persists, please report the details by "
+            "creating a ticket at http://svn.netlabs.org/odin32/.\n\r";
+
+        // Initialization has failed. Try to be nice and show an error message
+        // to the user.
+        WinMessageBox(HWND_DESKTOP, NULL, msg, "Odin: Fatal Error", 0,
+                      MB_APPLMODAL | MB_MOVEABLE | MB_ERROR | MB_OK);
+
+        // duplicate the message to the console just in case (PM may be not
+        // available)
+        ULONG dummy;
+        DosWrite((HFILE)1, (PVOID)msg, sizeof(msg), &dummy);
+    }
+
+    return rc;
+}
+//******************************************************************************
+//******************************************************************************
 void APIENTRY cleanupKernel32(ULONG ulReason)
 {