mirror of
https://gitlab.uni-freiburg.de/opensourcevdi/spice
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176970f3f1
Make all RedChannelClient hierarchy a C++ class. This allows to use virtual methods. Added a normal contructor instead or properties and g_object_new. As we remove GObject conversion macros I added a macro XXX_CAST to create a function to replace the old macro. They will be removed when more type safety is introduced. There's a new SPICE_CXX_GLIB_ALLOCATOR macro in red-common.h. This macro, added to a class define the class allocator allowing to use, in this case, GLib for allocation. This to avoid C++ library dependency and to initialize all structure to 0 (not all fields are manually initialized, will be improved with more encapsulation). Currently the methods are mainly public, access will be modified when more encapsulation (all functions in method) are done. Some classes are now defined in the header, C++ uses access to limit accessibility but for efficiency and type safety/inline and other features require types to be defined in the headers. Some fields were moved from XxxPrivate structure to class, C++ has accessibility. Many destructors are defined as protected to forbid the use of stack, this as these objects uses internal reference counting to have normal pointers. Maybe in the future pointers like std::shared_ptr could be used instead. Reference counting is now implemented very easily using atomic operations. Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
111 lines
3.4 KiB
C++
111 lines
3.4 KiB
C++
/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
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/*
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Copyright (C) 2009-2016 Red Hat, Inc.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <common/generated_server_marshallers.h>
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#include "common-graphics-channel.h"
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#include "red-channel-client.h"
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#include "cache-item.h"
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#include "cursor-channel.h"
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#include "cursor-channel-client.h"
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#define CLIENT_CURSOR_CACHE_SIZE 256
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#define CURSOR_CACHE_HASH_SHIFT 8
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#define CURSOR_CACHE_HASH_SIZE (1 << CURSOR_CACHE_HASH_SHIFT)
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#define CURSOR_CACHE_HASH_MASK (CURSOR_CACHE_HASH_SIZE - 1)
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#define CURSOR_CACHE_HASH_KEY(id) ((id) & CURSOR_CACHE_HASH_MASK)
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#define CURSOR_CLIENT_TIMEOUT 30000000000ULL //nano
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struct CursorChannelClientPrivate
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{
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SPICE_CXX_GLIB_ALLOCATOR
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RedCacheItem *cursor_cache[CURSOR_CACHE_HASH_SIZE];
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Ring cursor_cache_lru = { nullptr, nullptr };
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long cursor_cache_available = 0;
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};
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#define CLIENT_CURSOR_CACHE
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#include "cache-item.tmpl.cpp"
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#undef CLIENT_CURSOR_CACHE
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#ifdef DEBUG_CURSORS
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static int _cursor_count = 0;
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#endif
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void cursor_channel_client_reset_cursor_cache(CursorChannelClient *ccc)
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{
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red_cursor_cache_reset(ccc, CLIENT_CURSOR_CACHE_SIZE);
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}
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void CursorChannelClient::on_disconnect()
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{
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cursor_channel_client_reset_cursor_cache(this);
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}
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void cursor_channel_client_migrate(RedChannelClient *rcc)
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{
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spice_return_if_fail(rcc);
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rcc->pipe_add_type(RED_PIPE_ITEM_TYPE_INVAL_CURSOR_CACHE);
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RedChannelClient::default_migrate(rcc);
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}
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CursorChannelClient::CursorChannelClient(RedChannel *channel,
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RedClient *client,
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RedStream *stream,
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RedChannelCapabilities *caps):
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CommonGraphicsChannelClient(channel, client, stream, caps)
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{
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priv = new CursorChannelClientPrivate();
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ring_init(&priv->cursor_cache_lru);
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priv->cursor_cache_available = CLIENT_CURSOR_CACHE_SIZE;
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}
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CursorChannelClient::~CursorChannelClient()
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{
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delete priv;
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}
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CursorChannelClient* cursor_channel_client_new(CursorChannel *cursor, RedClient *client, RedStream *stream,
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int mig_target,
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RedChannelCapabilities *caps)
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{
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auto rcc = new CursorChannelClient(RED_CHANNEL(cursor), client, stream, caps);
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if (!rcc->init()) {
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rcc->unref();
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rcc = nullptr;
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}
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common_graphics_channel_set_during_target_migrate(COMMON_GRAPHICS_CHANNEL(cursor), mig_target);
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return rcc;
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}
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RedCacheItem* cursor_channel_client_cache_find(CursorChannelClient *ccc, uint64_t id)
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{
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return red_cursor_cache_find(ccc, id);
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}
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int cursor_channel_client_cache_add(CursorChannelClient *ccc, uint64_t id, size_t size)
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{
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return red_cursor_cache_add(ccc, id, size);
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}
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