Some more synchronisation with released branch

8 files changed, 120 insertions, 105 deletions

diff --git a/xorg-server/hw/xwin/InitOutput.c b/xorg-server/hw/xwin/InitOutput.c
index 640195993..9622db5a2 100755
--- a/xorg-server/hw/xwin/InitOutput.c
+++ b/xorg-server/hw/xwin/InitOutput.c
@@ -61,24 +61,11 @@ typedef HRESULT  (__stdcall *  SHGETFOLDERPATHPROC)(HWND hwndOwner,
 /*
  * References to external symbols
  */
-#ifdef XWIN_CLIPBOARD
-extern Bool g_fUnicodeClipboard;
-extern Bool g_fClipboardLaunched;
-extern Bool g_fClipboardStarted;
-extern pthread_t g_ptClipboardProc;
-extern HWND g_hwndClipboard;
-extern Bool g_fClipboard;
-#endif
 
 /*
  * Function prototypes
  */
 
-#ifdef XWIN_CLIPBOARD
-static void
- winClipboardShutdown(void);
-#endif
-
 static Bool
  winCheckDisplayNumber(void);
 
@@ -120,29 +107,6 @@ static PixmapFormatRec g_PixmapFormats[] = {
 
 const int NUMFORMATS = sizeof(g_PixmapFormats) / sizeof(g_PixmapFormats[0]);
 
-#ifdef XWIN_CLIPBOARD
-static void
-winClipboardShutdown(void)
-{
-    /* Close down clipboard resources */
-    if (g_fClipboard && g_fClipboardLaunched && g_fClipboardStarted) {
-        /* Synchronously destroy the clipboard window */
-        if (g_hwndClipboard != NULL) {
-            g_fClipboardStarted=FALSE; /* This is to avoid dead-locls caused by the clipboard thread still doing some stuff */
-            SendMessage(g_hwndClipboard, WM_DESTROY, 0, 0);
-            /* NOTE: g_hwndClipboard is set to NULL in winclipboardthread.c */
-        }
-        else
-            return;
-
-        /* Wait for the clipboard thread to exit */
-        pthread_join(g_ptClipboardProc, NULL);
-
-        winDebug("winClipboardShutdown - Clipboard thread has exited.\n");
-    }
-}
-#endif
-
 static const ExtensionModule xwinExtensions[] = {
 #ifdef GLXEXT
   { GlxExtensionInit, "GLX", &noGlxExtension },
diff --git a/xorg-server/hw/xwin/win.h b/xorg-server/hw/xwin/win.h
index 47e8f36eb..d070ea485 100644
--- a/xorg-server/hw/xwin/win.h
+++ b/xorg-server/hw/xwin/win.h
@@ -758,7 +758,7 @@ Bool
  winInitClipboard(void);
 
 void
- winFixClipboardChain (int Removed);
+ winClipboardShutdown(void);
 #endif
 
 /*
diff --git a/xorg-server/hw/xwin/winclipboard/internal.h b/xorg-server/hw/xwin/winclipboard/internal.h
index fece50740..55c7771af 100755
--- a/xorg-server/hw/xwin/winclipboard/internal.h
+++ b/xorg-server/hw/xwin/winclipboard/internal.h
@@ -1,5 +1,3 @@
-#ifndef _WINCLIPBOARD_H_
-#define _WINCLIPBOARD_H_
 /*
  *Copyright (C) 2003-2004 Harold L Hunt II All Rights Reserved.
  *
@@ -30,6 +28,9 @@
  * Authors:	Harold L Hunt II
  */
 
+#ifndef WINCLIPBOARD_INTERNAL_H
+#define WINCLIPBOARD_INTERNAL_H
+
 /* Standard library headers */
 #include <assert.h>
 #include <stdio.h>
@@ -79,8 +80,6 @@ extern char *display;
 Bool
  winInitClipboard(void);
 
-HWND winClipboardCreateMessagingWindow(void);
-
 /*
  * winclipboardtextconv.c
  */
@@ -95,13 +94,12 @@ void
  * winclipboardthread.c
  */
 
-void *winClipboardProc(void *);
 
 /*
  * winclipboardwndproc.c
  */
 
-BOOL winClipboardFlushWindowsMessageQueue(HWND hwnd);
+Bool winClipboardFlushWindowsMessageQueue(HWND hwnd);
 
 LRESULT CALLBACK
 winClipboardWindowProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam);
diff --git a/xorg-server/hw/xwin/winclipboard/thread.c b/xorg-server/hw/xwin/winclipboard/thread.c
index 1ba687eb1..50cf997fb 100755
--- a/xorg-server/hw/xwin/winclipboard/thread.c
+++ b/xorg-server/hw/xwin/winclipboard/thread.c
@@ -89,6 +89,9 @@ Bool g_fUseUnicode = FALSE;
  * Local function prototypes
  */
 
+static HWND
+winClipboardCreateMessagingWindow(void);
+
 static int
  winClipboardErrorHandler(Display * pDisplay, XErrorEvent * pErr);
 
@@ -101,8 +104,8 @@ winClipboardThreadExit(void *arg);
  * Main thread function
  */
 
-void *
-winClipboardProc(void *pvNotUsed)
+Bool
+winClipboardProc(Bool fUseUnicode, char *szDisplay)
 {
     Atom atomClipboard;
     int iReturn;
@@ -118,30 +121,25 @@ winClipboardProc(void *pvNotUsed)
     int iMaxDescriptor;
     Display *pDisplay = NULL;
     Window iWindow = None;
-    int iRetries;
-    Bool fUseUnicode;
-    char szDisplay[512];
     int iSelectError;
 
     pthread_cleanup_push(&winClipboardThreadExit, NULL);
 
     winDebug ("winClipboardProc - Hello\n");
 
-    /* Do we use Unicode clipboard? */
-    fUseUnicode = g_fUnicodeClipboard;
-
     /* Save the Unicode support flag in a global */
     g_fUseUnicode = fUseUnicode;
 
     /* Create Windows messaging window */
     hwnd = winClipboardCreateMessagingWindow ();
-  
+
     /* Save copy of HWND in screen privates */
     g_hwndClipboard = hwnd;
 
+    g_winClipboardProcThread = pthread_self();
+
     /* Set error handler */
     XSetErrorHandler(winClipboardErrorHandler);
-    g_winClipboardProcThread = pthread_self();
     g_winClipboardOldIOErrorHandler =
         XSetIOErrorHandler(winClipboardIOErrorHandler);
 
@@ -159,41 +157,8 @@ winClipboardProc(void *pvNotUsed)
         ErrorF("winClipboardProc - setjmp returned for IO Error Handler.\n");
     }
 
-    /* Use our generated cookie for authentication */
-    winSetAuthorization();
-
-    /* Initialize retry count */
-    iRetries = 0;
-
-    /* Setup the display connection string x */
-    /*
-     * NOTE: Always connect to screen 0 since we require that screen
-     * numbers start at 0 and increase without gaps.  We only need
-     * to connect to one screen on the display to get events
-     * for all screens on the display.  That is why there is only
-     * one clipboard client thread.
-     */
-    winGetDisplayName(szDisplay, 0);
-
-    /* Print the display connection string */
-    winDebug ("winClipboardProc - DISPLAY=%s\n", szDisplay);
-
-    /* Open the X display */
-    do {
-        pDisplay = XOpenDisplay(szDisplay);
-        if (pDisplay == NULL) {
-            ErrorF("winClipboardProc - Could not open display, "
-                   "try: %d, sleeping: %d\n", iRetries + 1, WIN_CONNECT_DELAY);
-            ++iRetries;
-            sleep(WIN_CONNECT_DELAY);
-            continue;
-        }
-        else
-            break;
-    }
-    while (pDisplay == NULL && iRetries < WIN_CONNECT_RETRIES);
-
     /* Make sure that the display opened */
+    pDisplay = XOpenDisplay(szDisplay);
     if (pDisplay == NULL) {
         ErrorF("winClipboardProc - Failed opening the display, giving up\n");
         goto thread_errorexit;
@@ -282,7 +247,7 @@ winClipboardProc(void *pvNotUsed)
     }
 
     /* Pre-flush X events */
-    /* 
+    /*
      * NOTE: Apparently you'll freeze if you don't do this,
      *       because there may be events in local data structures
      *       already.
@@ -432,7 +397,7 @@ commonexit:
 
     pthread_cleanup_pop(0);
 
-    return NULL;
+    return FALSE;
 }
 
 /*
diff --git a/xorg-server/hw/xwin/winclipboard/winclipboard.h b/xorg-server/hw/xwin/winclipboard/winclipboard.h
index e4011a172..7b172739a 100644
--- a/xorg-server/hw/xwin/winclipboard/winclipboard.h
+++ b/xorg-server/hw/xwin/winclipboard/winclipboard.h
@@ -27,5 +27,6 @@
 #ifndef WINCLIPBOARD_H
 #define WINCLIPBOARD_H
 
+void winFixClipboardChain (int Removed);
 
 #endif
diff --git a/xorg-server/hw/xwin/winclipboard/wndproc.c b/xorg-server/hw/xwin/winclipboard/wndproc.c
index 0819de4a5..f5f931f74 100755
--- a/xorg-server/hw/xwin/winclipboard/wndproc.c
+++ b/xorg-server/hw/xwin/winclipboard/wndproc.c
@@ -33,6 +33,16 @@
 #ifdef HAVE_XWIN_CONFIG_H
 #include <xwin-config.h>
 #endif
+
+/*
+ * Including any server header might define the macro _XSERVER64 on 64 bit machines.
+ * That macro must _NOT_ be defined for Xlib client code, otherwise bad things happen.
+ * So let's undef that macro if necessary.
+ */
+#ifdef _XSERVER64
+#undef _XSERVER64
+#endif
+
 #include <sys/types.h>
 #include <sys/time.h>
 #include "winclipboard.h"
@@ -494,7 +504,7 @@ winClipboardWindowProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
  * Process any pending Windows messages
  */
 
-BOOL
+Bool
 winClipboardFlushWindowsMessageQueue(HWND hwnd)
 {
     MSG msg;
diff --git a/xorg-server/hw/xwin/winclipboardinit.c b/xorg-server/hw/xwin/winclipboardinit.c
index d4d9926ac..1a4899978 100644
--- a/xorg-server/hw/xwin/winclipboardinit.c
+++ b/xorg-server/hw/xwin/winclipboardinit.c
@@ -31,29 +31,79 @@
 #ifdef HAVE_XWIN_CONFIG_H
 #include <xwin-config.h>
 #endif
-#include "dixstruct.h"
-#include "winclipboard.h"
-#include "objbase.h"
-#include "ddraw.h"
-#include "winwindow.h"
-#include "internal.h"
+
+#include <unistd.h>
+#include <pthread.h>
+
+#include "win.h"
+#include "winclipboard/winclipboard.h"
+#include "windisplay.h"
+
+#define WIN_CLIPBOARD_RETRIES			40
+#define WIN_CLIPBOARD_DELAY			1
 
 /*
- * Local typedefs
+ * Local variables
  */
 
-typedef int (*winDispatchProcPtr) (ClientPtr);
-
 int winProcSetSelectionOwner(ClientPtr /* client */ );
 
 /*
- * References to external symbols
+ *
  */
+static void *
+winClipboardThreadProc(void *arg)
+{
+  char szDisplay[512];
+  int clipboardRestarts = 0;
+
+  while (1)
+    {
+      Bool fShutdown;
+
+      ++clipboardRestarts;
+
+      /* Use our generated cookie for authentication */
+      winSetAuthorization();
+
+      /* Setup the display connection string */
+      /*
+       * NOTE: Always connect to screen 0 since we require that screen
+       * numbers start at 0 and increase without gaps.  We only need
+       * to connect to one screen on the display to get events
+       * for all screens on the display.  That is why there is only
+       * one clipboard client thread.
+      */
+      winGetDisplayName(szDisplay, 0);
+
+      /* Print the display connection string */
+      ErrorF("winClipboardThreadProc - DISPLAY=%s\n", szDisplay);
+
+      /* Flag that clipboard client has been launched */
+      g_fClipboardStarted = TRUE;
+
+      fShutdown = winClipboardProc(g_fUnicodeClipboard, szDisplay);
 
-extern pthread_t g_ptClipboardProc;
-extern winDispatchProcPtr winProcSetSelectionOwnerOrig;
-extern Bool g_fClipboard;
-extern HWND g_hwndClipboard;
+      /* Flag that clipboard client has stopped */
+      g_fClipboardStarted = FALSE;
+
+      if (fShutdown)
+        break;
+
+      /* checking if we need to restart */
+      if (clipboardRestarts >= WIN_CLIPBOARD_RETRIES) {
+        /* terminates clipboard thread but the main server still lives */
+        ErrorF("winClipboardProc - the clipboard thread has restarted %d times and seems to be unstable, disabling clipboard integration\n", clipboardRestarts);
+        g_fClipboard = FALSE;
+        break;
+      }
+
+      sleep(WIN_CLIPBOARD_DELAY);
+      ErrorF("winClipboardProc - trying to restart clipboard thread \n");
+    }
+
+  return NULL;
+}
 
 /*
  * Intialize the Clipboard module
@@ -71,7 +121,7 @@ winInitClipboard(void)
     }
 
     /* Spawn a thread for the Clipboard module */
-    if (pthread_create(&g_ptClipboardProc, NULL, winClipboardProc, NULL)) {
+    if (pthread_create(&g_ptClipboardProc, NULL, winClipboardThreadProc, NULL)) {
         /* Bail if thread creation failed */
         ErrorF("winInitClipboard - pthread_create failed.\n");
         return FALSE;
@@ -79,3 +129,25 @@ winInitClipboard(void)
 
     return TRUE;
 }
+
+void
+winClipboardShutdown(void)
+{
+    /* Close down clipboard resources */
+    if (g_fClipboard && g_fClipboardLaunched && g_fClipboardStarted) {
+        /* Synchronously destroy the clipboard window */
+        if (g_hwndClipboard != NULL) {
+            g_fClipboardStarted=FALSE; /* This is to avoid dead-locls caused by the clipboard thread still doing some stuff */
+            SendMessage(g_hwndClipboard, WM_DESTROY, 0, 0);
+            /* NOTE: g_hwndClipboard is set to NULL in winclipboardthread.c */
+        }
+        else
+            return;
+
+        /* Wait for the clipboard thread to exit */
+        pthread_join(g_ptClipboardProc, NULL);
+
+        winDebug("winClipboardShutdown - Clipboard thread has exited.\n");
+    }
+}
+
diff --git a/xorg-server/hw/xwin/winglobals.h b/xorg-server/hw/xwin/winglobals.h
index ffec0acf4..f697085bc 100644
--- a/xorg-server/hw/xwin/winglobals.h
+++ b/xorg-server/hw/xwin/winglobals.h
@@ -79,6 +79,11 @@ extern Bool g_fUnicodeClipboard;
 extern Bool g_fClipboard;
 extern Bool g_fClipboardStarted;
 
+extern Bool g_fClipboardLaunched;
+
+extern pthread_t g_ptClipboardProc;
+extern HWND g_hwndClipboard;
+
 /* The global X default icons */
 #if defined(XWIN_MULTIWINDOW)
 extern HICON g_hIconX;