Adding upstream version 7.0.6-dfsg.upstream/7.0.6-dfsgupstream

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

1 files changed, 144 insertions, 0 deletions

diff --git a/src/VBox/Additions/haiku/SharedFolders/vnode_cache.cpp b/src/VBox/Additions/haiku/SharedFolders/vnode_cache.cpp
new file mode 100644
index 00000000..cbaf072c
--- /dev/null
+++ b/src/VBox/Additions/haiku/SharedFolders/vnode_cache.cpp
@@ -0,0 +1,144 @@
+/* $Id: vnode_cache.cpp $ */
+/** @file
+ * Shared folders - Haiku Guest Additions, vnode cache header.
+ */
+
+/*
+ * Copyright (C) 2012-2022 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+/*
+ * This code is based on:
+ *
+ * VirtualBox Guest Additions for Haiku.
+ * Copyright (c) 2011 Mike Smith <mike@scgtrp.net>
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "vboxsf.h"
+#include "OpenHashTable.h"
+
+struct HashTableDefinition
+{
+    typedef uint32       KeyType;
+    typedef vboxsf_vnode ValueType;
+
+    size_t HashKey(uint32 key) const
+    {
+        return key;
+    }
+
+    size_t Hash(vboxsf_vnode* value) const
+    {
+        return HashKey(value->vnode);
+    }
+
+    bool Compare(uint32 key, vboxsf_vnode* value) const
+    {
+        return value->vnode == key;
+    }
+
+    vboxsf_vnode*& GetLink(vboxsf_vnode* value) const
+    {
+        return value->next;
+    }
+};
+
+static BOpenHashTable<HashTableDefinition> g_cache;
+static ino_t g_nextVnid = 1;
+mutex g_vnodeCacheLock;
+
+
+extern "C" status_t vboxsf_new_vnode(PVBSFMAP map, PSHFLSTRING path, PSHFLSTRING name, vboxsf_vnode** p)
+{
+    vboxsf_vnode* vn = (vboxsf_vnode*)malloc(sizeof(vboxsf_vnode));
+    if (vn == NULL)
+        return B_NO_MEMORY;
+
+    dprintf("creating new vnode at %p with path=%p (%s)\n", vn, path->String.utf8, path->String.utf8);
+    vn->map = map;
+    vn->path = path;
+    if (name)
+        vn->name = name;
+    else
+    {
+        const char* cname = strrchr((char*)path->String.utf8, '/');
+        if (!cname)
+            vn->name = path; // no slash, assume this *is* the filename
+        else
+            vn->name = make_shflstring(cname);
+    }
+
+    if (mutex_lock(&g_vnodeCacheLock) < B_OK)
+    {
+        free(vn);
+        return B_ERROR;
+    }
+
+    vn->vnode = g_nextVnid++;
+    *p = vn;
+    dprintf("vboxsf: allocated %p (path=%p name=%p)\n", vn, vn->path, vn->name);
+    status_t rv = g_cache.Insert(vn);
+
+    mutex_unlock(&g_vnodeCacheLock);
+
+    return rv;
+}
+
+
+extern "C" status_t vboxsf_get_vnode(fs_volume* volume, ino_t id, fs_vnode* vnode,
+                                     int* _type, uint32* _flags, bool reenter)
+{
+    vboxsf_vnode* vn = g_cache.Lookup(id);
+    if (vn)
+    {
+        vnode->private_node = vn;
+        return B_OK;
+    }
+    return B_ERROR;
+}
+
+
+extern "C" status_t vboxsf_put_vnode(fs_volume* volume, fs_vnode* vnode, bool reenter)
+{
+    g_cache.Remove((vboxsf_vnode*)vnode->private_node);
+}
+