- Add some missing IO_ERROR definitions to the DDK and add some tags

- Fix IoSetThreadHardErrorMode... it was reading the TEB instead of the PETHREAD.
- Optimize Error Logging: Use a static work item instead of allocating one each time, and don't use a spinlock for the buffer count, when we can use interlocked functions instead.
- Log Entries can have Device AND/OR Driver Objects, not just a single one. They must also be referenced/dereferenced on allocation/free.
- Rewrite IopLogWorker to properly deal with Device/Driver objects and querying their names, as well as with additional strings that the caller might be sending.

svn path=/trunk/; revision=22734

reactos/include/ddk/winddk.h

@@ -1849,6 +1849,14 @@ typedef struct _IO_ERROR_LOG_MESSAGE {
 #define IO_ERROR_LOG_MESSAGE_HEADER_LENGTH (sizeof(IO_ERROR_LOG_MESSAGE) - \
                                             sizeof(IO_ERROR_LOG_PACKET) + \
                                             (sizeof(WCHAR) * 40))
+#define ERROR_LOG_MESSAGE_LIMIT_SIZE                                          \
+    (ERROR_LOG_LIMIT_SIZE + IO_ERROR_LOG_MESSAGE_HEADER_LENGTH)
+#define IO_ERROR_LOG_MESSAGE_LENGTH                                           \
+    ((PORT_MAXIMUM_MESSAGE_LENGTH > ERROR_LOG_MESSAGE_LIMIT_SIZE) ?           \
+        ERROR_LOG_MESSAGE_LIMIT_SIZE :                                        \
+        PORT_MAXIMUM_MESSAGE_LENGTH)
+#define ERROR_LOG_MAXIMUM_SIZE (IO_ERROR_LOG_MESSAGE_LENGTH -                 \
+                                IO_ERROR_LOG_MESSAGE_HEADER_LENGTH)
 
 typedef struct _CONTROLLER_OBJECT {
   CSHORT  Type;

reactos/ntoskrnl/include/internal/io.h

@@ -218,6 +218,29 @@ typedef struct _IO_INTERRUPT
     KSPIN_LOCK SpinLock;
 } IO_INTERRUPT, *PIO_INTERRUPT;
 
+//
+// I/O Error Log Packet Header
+//
+typedef struct _ERROR_LOG_ENTRY
+{
+    CSHORT Type;
+    CSHORT Size;
+    LIST_ENTRY ListEntry;
+    PDEVICE_OBJECT DeviceObject;
+    PDRIVER_OBJECT DriverObject;
+    LARGE_INTEGER TimeStamp;
+} ERROR_LOG_ENTRY, *PERROR_LOG_ENTRY;
+
+//
+// Event Log LPC Message
+//
+typedef struct _ELF_API_MSG
+{
+    PORT_MESSAGE h;
+    ULONG Unknown[2];
+    IO_ERROR_LOG_MESSAGE IoErrorMessage;
+} ELF_API_MSG, *PELF_API_MSG;
+
 //
 // To simplify matters, the kernel is made to support both the checked and free
 // version of the I/O Remove Lock in the same binary. This structure includes
@@ -604,12 +627,18 @@ IoInitCancelHandling(
 //
 // Error Logging Routines
 //
-
+VOID
-NTSTATUS
+NTAPI
 IopInitErrorLog(
     VOID
 );
 
+VOID
+NTAPI
+IopLogWorker(
+    IN PVOID Parameter
+);
+
 //
 // Raw File System MiniDriver
 //

reactos/ntoskrnl/include/internal/tag.h

@@ -49,6 +49,9 @@
 #define IO_SMALLIRP_CPU     TAG('I', 'r', 'p', 'S')
 #define IOC_TAG1             TAG('I', 'p', 'c', ' ')
 #define IOC_CPU             TAG('I', 'p', 'c', 'P')
+#define TAG_APC             TAG('K', 'A', 'P', 'C')
+#define TAG_IO              TAG('I', 'o', ' ', ' ')
+#define TAG_ERROR_LOG       TAG('I', 'o', 'E', 'r')
 
 /* formerly located in io/work.c */
 #define TAG_IOWI TAG('I', 'O', 'W', 'I')