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https://gitlab.uni-freiburg.de/opensourcevdi/spice
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8f9fd3a826
In anticipation of porting to GObject, use casting macros (e.g. MAIN_CHANNEL_CLIENT()) to cast RedChannelClient types. This will help reduce the changeset slightly porting to GObject and thus make it easier to review those upcoming changes. Acked-by: Frediano Ziglio <fziglio@redhat.com>
126 lines
4.1 KiB
C
126 lines
4.1 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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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <common/generated_server_marshallers.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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enum {
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RED_PIPE_ITEM_TYPE_CURSOR = RED_PIPE_ITEM_TYPE_COMMON_LAST,
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RED_PIPE_ITEM_TYPE_CURSOR_INIT,
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RED_PIPE_ITEM_TYPE_INVAL_CURSOR_CACHE,
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};
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typedef struct CursorChannelClientPrivate CursorChannelClientPrivate;
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struct CursorChannelClientPrivate
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{
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RedCacheItem *cursor_cache[CURSOR_CACHE_HASH_SIZE];
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Ring cursor_cache_lru;
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long cursor_cache_available;
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uint32_t cursor_cache_items;
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};
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struct CursorChannelClient
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{
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RedChannelClient base;
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CursorChannelClientPrivate priv[1];
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};
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#define CLIENT_CURSOR_CACHE
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#include "cache-item.tmpl.c"
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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(RedChannelClient *rcc)
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{
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red_cursor_cache_reset(CURSOR_CHANNEL_CLIENT(rcc), CLIENT_CURSOR_CACHE_SIZE);
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}
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void cursor_channel_client_on_disconnect(RedChannelClient *rcc)
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{
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if (!rcc) {
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return;
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}
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cursor_channel_client_reset_cursor_cache(rcc);
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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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red_channel_client_pipe_add_type(rcc, RED_PIPE_ITEM_TYPE_INVAL_CURSOR_CACHE);
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red_channel_client_default_migrate(rcc);
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}
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CursorChannelClient* cursor_channel_client_new(CursorChannel *cursor, RedClient *client, RedsStream *stream,
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int mig_target,
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uint32_t *common_caps, int num_common_caps,
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uint32_t *caps, int num_caps)
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{
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spice_return_val_if_fail(cursor, NULL);
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spice_return_val_if_fail(client, NULL);
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spice_return_val_if_fail(stream, NULL);
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spice_return_val_if_fail(!num_common_caps || common_caps, NULL);
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spice_return_val_if_fail(!num_caps || caps, NULL);
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CursorChannelClient *ccc =
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CURSOR_CHANNEL_CLIENT(red_channel_client_create(sizeof(CursorChannelClient),
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RED_CHANNEL(cursor),
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client, stream,
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FALSE,
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num_common_caps,
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common_caps,
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num_caps,
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caps));
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spice_return_val_if_fail(ccc != NULL, NULL);
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COMMON_GRAPHICS_CHANNEL(cursor)->during_target_migrate = mig_target;
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ring_init(&ccc->priv->cursor_cache_lru);
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ccc->priv->cursor_cache_available = CLIENT_CURSOR_CACHE_SIZE;
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return ccc;
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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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