Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 330 insertions, 0 deletions

diff --git a/src/VBox/Additions/darwin/VBoxClient/VBoxClientClipboard.cpp b/src/VBox/Additions/darwin/VBoxClient/VBoxClientClipboard.cpp
new file mode 100644
index 00000000..896e5eb2
--- /dev/null
+++ b/src/VBox/Additions/darwin/VBoxClient/VBoxClientClipboard.cpp
@@ -0,0 +1,330 @@
+/** $Id: VBoxClientClipboard.cpp $ */
+/** @file
+ * VBoxClient - Shared Slipboard Dispatcher, Darwin.
+ */
+
+/*
+ * Copyright (C) 2007-2019 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.
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#include <Carbon/Carbon.h>
+
+#include <iprt/asm.h>
+#include <iprt/stream.h>
+#include <iprt/thread.h>
+#include <iprt/critsect.h>
+#include <VBox/VBoxGuestLib.h>
+#include <VBox/HostServices/VBoxClipboardSvc.h>
+#include <VBox/GuestHost/clipboard-helper.h>
+#include "VBoxClientInternal.h"
+
+
+/*********************************************************************************************************************************
+*   Global Variables                                                                                                             *
+*********************************************************************************************************************************/
+
+/** Host clipboard connection client ID */
+static uint32_t         g_u32ClientId;
+/* Guest clipboard reference */
+static PasteboardRef    g_PasteboardRef;
+/* Dispatcher tharead handle */
+RTTHREAD                g_DispatcherThread;
+/* Pasteboard polling tharead handle */
+RTTHREAD                g_GuestPasteboardThread;
+/* Flag that indicates whether or not dispatcher and Pasteboard polling threada should stop */
+static bool volatile    g_fShouldStop;
+/* Barrier for Pasteboard */
+static RTCRITSECT       g_critsect;
+
+
+/*********************************************************************************************************************************
+*   Local Macros                                                                                                                 *
+*********************************************************************************************************************************/
+
+#define VBOXCLIENT_SERVICE_NAME     "clipboard"
+
+
+/*********************************************************************************************************************************
+*   Local Function Prototypes                                                                                                    *
+*********************************************************************************************************************************/
+static int vbclClipboardStop(void);
+
+
+/**
+ * Clipboard dispatcher function.
+ *
+ * Forwards cliproard content between host and guest.
+ *
+ * @param   ThreadSelf  Unused parameter.
+ * @param   pvUser      Unused parameter.
+ *
+ * @return  IPRT status code.
+ */
+static DECLCALLBACK(int) vbclClipboardDispatcher(RTTHREAD ThreadSelf, void *pvUser)
+{
+    bool fQuit = false;
+    NOREF(ThreadSelf);
+    NOREF(pvUser);
+
+    VBoxClientVerbose(2, "starting host clipboard polling thread\n");
+
+    /*
+     * Block all signals for this thread. Only the main thread will handle signals.
+     */
+    sigset_t signalMask;
+    sigfillset(&signalMask);
+    pthread_sigmask(SIG_BLOCK, &signalMask, NULL);
+
+    while (!fQuit && !ASMAtomicReadBool(&g_fShouldStop))
+    {
+        int rc;
+        uint32_t Msg;
+        uint32_t fFormats;
+
+        VBoxClientVerbose(2, "waiting for new host request\n");
+
+        rc = VbglR3ClipboardGetHostMsg(g_u32ClientId, &Msg, &fFormats);
+        if (RT_SUCCESS(rc))
+        {
+            RTCritSectEnter(&g_critsect);
+            switch (Msg)
+            {
+                /* The host is terminating */
+                case VBOX_SHARED_CLIPBOARD_HOST_MSG_QUIT:
+                    VBoxClientVerbose(2, "host requested quit\n");
+                    fQuit = true;
+                    break;
+
+                /* The host needs data in the specified format */
+                case VBOX_SHARED_CLIPBOARD_HOST_MSG_READ_DATA:
+                    VBoxClientVerbose(2, "host requested guest's clipboard read\n");
+                    rc = vbclClipboardForwardToHost(g_u32ClientId, g_PasteboardRef, fFormats);
+                    AssertMsg(RT_SUCCESS(rc), ("paste to host failed\n"));
+                    break;
+
+                /* The host has announced available clipboard formats */
+                case VBOX_SHARED_CLIPBOARD_HOST_MSG_FORMATS:
+                    VBoxClientVerbose(2, "host requested guest's clipboard write\n");
+                    rc = vbclClipboardForwardToGuest(g_u32ClientId, g_PasteboardRef, fFormats);
+                    AssertMsg(RT_SUCCESS(rc), ("paste to guest failed\n"));
+                    break;
+
+                default:
+                    VBoxClientVerbose(2, "received unknow command from host service\n");
+                    RTThreadSleep(1000);
+            }
+
+            RTCritSectLeave(&g_critsect);
+        }
+        else
+        {
+            RTThreadSleep(1000);
+        }
+    }
+
+    VBoxClientVerbose(2, "host clipboard polling thread stopped\n");
+
+    return VINF_SUCCESS;
+}
+
+
+/**
+ * Clipboard dispatcher function.
+ *
+ * Forwards cliproard content between host and guest.
+ *
+ * @param   hThreadSelf  Unused parameter.
+ * @param   pvUser      Unused parameter.
+ *
+ * @return  IPRT status code.
+ */
+static DECLCALLBACK(int) vbclGuestPasteboardPoll(RTTHREAD hThreadSelf, void *pvUser)
+{
+    RT_NOREF(hThreadSelf, pvUser);
+
+    /*
+     * Block all signals for this thread. Only the main thread will handle signals.
+     */
+    sigset_t signalMask;
+    sigfillset(&signalMask);
+    pthread_sigmask(SIG_BLOCK, &signalMask, NULL);
+
+    VBoxClientVerbose(2, "starting guest clipboard polling thread\n");
+
+    while (!ASMAtomicReadBool(&g_fShouldStop))
+    {
+        PasteboardSyncFlags fSyncFlags;
+        uint32_t            fFormats;
+        int                 rc;
+
+        RTCritSectEnter(&g_critsect);
+
+        fSyncFlags = PasteboardSynchronize(g_PasteboardRef);
+        if (fSyncFlags & kPasteboardModified)
+        {
+            fFormats = vbclClipboardGetAvailableFormats(g_PasteboardRef);
+            rc = VbglR3ClipboardReportFormats(g_u32ClientId, fFormats);
+            if (RT_FAILURE(rc))
+            {
+                VBoxClientVerbose(2, "failed to report pasteboard update (%Rrc)\n", rc);
+            }
+            else
+            {
+                VBoxClientVerbose(2, "guest clipboard update reported: %d\n", (int)fFormats);
+            }
+        }
+
+        RTCritSectLeave(&g_critsect);
+
+        /* Check pasteboard every 200 ms */
+        RTThreadSleep(200);
+    }
+
+    VBoxClientVerbose(2, "guest clipboard polling thread stopped\n");
+
+    return VINF_SUCCESS;
+}
+
+
+/**
+ * Initialize host and guest clipboards, start clipboard dispatcher loop.
+ *
+ * @return  IPRT status code.
+ */
+static int vbclClipboardStart(void)
+{
+    int rc;
+
+    VBoxClientVerbose(2, "starting clipboard\n");
+
+    rc = RTCritSectInit(&g_critsect);
+    if (RT_FAILURE(rc))
+        return VERR_GENERAL_FAILURE;
+
+    rc = VbglR3ClipboardConnect(&g_u32ClientId);
+    if (RT_SUCCESS(rc))
+    {
+        rc = PasteboardCreate(kPasteboardClipboard, &g_PasteboardRef);
+        if (rc == noErr)
+        {
+            /* Start dispatcher loop */
+            ASMAtomicWriteBool(&g_fShouldStop, false);
+            rc = RTThreadCreate(&g_DispatcherThread,
+                                vbclClipboardDispatcher,
+                                (void *)NULL,
+                                0,
+                                RTTHREADTYPE_DEFAULT,
+                                RTTHREADFLAGS_WAITABLE,
+                                VBOXCLIENT_SERVICE_NAME);
+            if (RT_SUCCESS(rc))
+            {
+                /* Start dispatcher loop */
+                ASMAtomicWriteBool(&g_fShouldStop, false);
+                rc = RTThreadCreate(&g_GuestPasteboardThread,
+                                    vbclGuestPasteboardPoll,
+                                    (void *)NULL,
+                                    0,
+                                    RTTHREADTYPE_DEFAULT,
+                                    RTTHREADFLAGS_WAITABLE,
+                                    VBOXCLIENT_SERVICE_NAME);
+                if (RT_SUCCESS(rc))
+                    return VINF_SUCCESS;
+
+                /* Stop dispatcher thread */
+                ASMAtomicWriteBool(&g_fShouldStop, true);
+                RTThreadWait(g_DispatcherThread, 10 * 1000 /* Wait 10 seconds */, NULL);
+
+            }
+            VBoxClientVerbose(2, "unable create dispatcher thread\n");
+            CFRelease(g_PasteboardRef);
+            g_PasteboardRef = NULL;
+
+        }
+        else
+        {
+            rc = VERR_GENERAL_FAILURE;
+            VBoxClientVerbose(2, "unable access guest clipboard\n");
+        }
+
+        vbclClipboardStop();
+
+    }
+    else
+    {
+        VBoxClientVerbose(2, "unable to establish connection to clipboard service: %Rrc\n", rc);
+    }
+
+    RTCritSectDelete(&g_critsect);
+
+    return rc;
+}
+
+
+/**
+ * Release host and guest clipboards, stop clipboard dispatcher loop.
+ *
+ * @return  IPRT status code.
+ */
+static int vbclClipboardStop(void)
+{
+    int rc;
+
+    VBoxClientVerbose(2, "stopping clipboard\n");
+
+    AssertReturn(g_u32ClientId != 0, VERR_GENERAL_FAILURE);
+
+    VbglR3ClipboardReportFormats(g_u32ClientId, 0);
+
+    rc = VbglR3ClipboardDisconnect(g_u32ClientId);
+    if (RT_SUCCESS(rc))
+        g_u32ClientId = 0;
+    else
+        VBoxClientVerbose(2, "unable to close clipboard service connection: %Rrc\n", rc);
+
+    if (g_PasteboardRef)
+    {
+        CFRelease(g_PasteboardRef);
+        g_PasteboardRef = NULL;
+    }
+
+    /* Stop dispatcher thread */
+    ASMAtomicWriteBool(&g_fShouldStop, true);
+    rc = RTThreadWait(g_DispatcherThread, 10 * 1000 /* Wait 10 seconds */, NULL);
+    if (RT_FAILURE(rc))
+        VBoxClientVerbose(2, "failed to stop dispatcher thread");
+
+    /* Stop Pasteboard polling thread */
+    rc = RTThreadWait(g_GuestPasteboardThread, 10 * 1000 /* Wait 10 seconds */, NULL);
+    if (RT_FAILURE(rc))
+        VBoxClientVerbose(2, "failed to stop pasteboard polling thread");
+
+    RTCritSectDelete(&g_critsect);
+
+    return rc;
+}
+
+
+/* Clipboard service struct */
+VBOXCLIENTSERVICE g_ClipboardService =
+{
+    /* pszName */
+    VBOXCLIENT_SERVICE_NAME,
+
+    /* pfnStart */
+    vbclClipboardStart,
+
+    /* pfnStop */
+    vbclClipboardStop,
+};