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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
commit | f215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch) | |
tree | 6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /src/VBox/Additions/haiku/SharedFolders/vnode_cache.cpp | |
parent | Initial commit. (diff) | |
download | virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.tar.xz virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.zip |
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/VBox/Additions/haiku/SharedFolders/vnode_cache.cpp | 144 |
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..05221606 --- /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) 2012-2023 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); +} + |