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831 lines
23 KiB
831 lines
23 KiB
/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Jay Sorg 2004-2014
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* cache
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*/
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#include "xrdp.h"
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#include "log.h"
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#include "crc16.h"
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#define LLOG_LEVEL 1
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#define LLOGLN(_level, _args) \
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do \
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{ \
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if (_level < LLOG_LEVEL) \
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{ \
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g_write("xrdp:xrdp_cache [%10.10u]: ", g_time3()); \
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g_writeln _args ; \
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} \
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} \
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while (0)
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/*****************************************************************************/
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static int APP_CC
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xrdp_cache_reset_lru(struct xrdp_cache *self)
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{
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int index;
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int jndex;
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struct xrdp_lru_item *lru;
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for (index = 0; index < XRDP_MAX_BITMAP_CACHE_ID; index++)
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{
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/* fist item */
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lru = &(self->bitmap_lrus[index][0]);
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lru->next = 1;
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lru->prev = -1;
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/* middle items */
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for (jndex = 1; jndex < XRDP_MAX_BITMAP_CACHE_IDX - 1; jndex++)
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{
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lru = &(self->bitmap_lrus[index][jndex]);
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lru->next = jndex + 1;
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lru->prev = jndex - 1;
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}
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/* last item */
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lru = &(self->bitmap_lrus[index][XRDP_MAX_BITMAP_CACHE_IDX - 1]);
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lru->next = -1;
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lru->prev = XRDP_MAX_BITMAP_CACHE_IDX - 2;
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self->lru_head[index] = 0;
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self->lru_tail[index] = XRDP_MAX_BITMAP_CACHE_IDX - 1;
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self->lru_reset[index] = 1;
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}
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return 0;
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}
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/*****************************************************************************/
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static int APP_CC
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xrdp_cache_reset_crc(struct xrdp_cache *self)
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{
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int index;
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int jndex;
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for (index = 0; index < XRDP_MAX_BITMAP_CACHE_ID; index++)
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{
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for (jndex = 0; jndex < 64 * 1024; jndex++)
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{
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/* it's ok to deinit a zeroed out struct list16 */
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list16_deinit(&(self->crc16[index][jndex]));
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list16_init(&(self->crc16[index][jndex]));
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}
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}
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return 0;
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}
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/*****************************************************************************/
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struct xrdp_cache *APP_CC
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xrdp_cache_create(struct xrdp_wm *owner,
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struct xrdp_session *session,
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struct xrdp_client_info *client_info)
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{
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struct xrdp_cache *self;
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self = (struct xrdp_cache *)g_malloc(sizeof(struct xrdp_cache), 1);
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self->wm = owner;
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self->session = session;
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self->use_bitmap_comp = client_info->use_bitmap_comp;
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self->cache1_entries = MIN(XRDP_MAX_BITMAP_CACHE_IDX,
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client_info->cache1_entries);
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self->cache1_entries = MAX(self->cache1_entries, 0);
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self->cache1_size = client_info->cache1_size;
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self->cache2_entries = MIN(XRDP_MAX_BITMAP_CACHE_IDX,
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client_info->cache2_entries);
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self->cache2_entries = MAX(self->cache2_entries, 0);
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self->cache2_size = client_info->cache2_size;
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self->cache3_entries = MIN(XRDP_MAX_BITMAP_CACHE_IDX,
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client_info->cache3_entries);
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self->cache3_entries = MAX(self->cache3_entries, 0);
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self->cache3_size = client_info->cache3_size;
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self->bitmap_cache_persist_enable = client_info->bitmap_cache_persist_enable;
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self->bitmap_cache_version = client_info->bitmap_cache_version;
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self->pointer_cache_entries = client_info->pointer_cache_entries;
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self->xrdp_os_del_list = list_create();
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xrdp_cache_reset_lru(self);
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xrdp_cache_reset_crc(self);
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LLOGLN(10, ("xrdp_cache_create: 0 %d 1 %d 2 %d",
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self->cache1_entries, self->cache2_entries, self->cache3_entries));
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return self;
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}
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/*****************************************************************************/
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void APP_CC
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xrdp_cache_delete(struct xrdp_cache *self)
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{
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int i;
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int j;
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if (self == 0)
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{
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return;
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}
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/* free all the cached bitmaps */
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for (i = 0; i < XRDP_MAX_BITMAP_CACHE_ID; i++)
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{
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for (j = 0; j < XRDP_MAX_BITMAP_CACHE_IDX; j++)
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{
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xrdp_bitmap_delete(self->bitmap_items[i][j].bitmap);
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}
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}
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/* free all the cached font items */
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for (i = 0; i < 12; i++)
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{
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for (j = 0; j < 256; j++)
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{
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g_free(self->char_items[i][j].font_item.data);
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}
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}
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/* free all the off screen bitmaps */
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for (i = 0; i < 2000; i++)
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{
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xrdp_bitmap_delete(self->os_bitmap_items[i].bitmap);
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}
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list_delete(self->xrdp_os_del_list);
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/* free all crc lists */
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for (i = 0; i < XRDP_MAX_BITMAP_CACHE_ID; i++)
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{
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for (j = 0; j < 64 * 1024; j++)
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{
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list16_deinit(&(self->crc16[i][j]));
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}
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}
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g_free(self);
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}
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/*****************************************************************************/
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int APP_CC
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xrdp_cache_reset(struct xrdp_cache *self,
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struct xrdp_client_info *client_info)
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{
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struct xrdp_wm *wm;
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struct xrdp_session *session;
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int i;
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int j;
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/* free all the cached bitmaps */
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for (i = 0; i < XRDP_MAX_BITMAP_CACHE_ID; i++)
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{
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for (j = 0; j < XRDP_MAX_BITMAP_CACHE_IDX; j++)
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{
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xrdp_bitmap_delete(self->bitmap_items[i][j].bitmap);
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}
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}
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/* free all the cached font items */
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for (i = 0; i < 12; i++)
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{
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for (j = 0; j < 256; j++)
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{
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g_free(self->char_items[i][j].font_item.data);
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}
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}
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/* save these */
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wm = self->wm;
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session = self->session;
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/* set whole struct to zero */
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g_memset(self, 0, sizeof(struct xrdp_cache));
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/* set some stuff back */
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self->wm = wm;
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self->session = session;
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self->use_bitmap_comp = client_info->use_bitmap_comp;
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self->cache1_entries = client_info->cache1_entries;
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self->cache1_size = client_info->cache1_size;
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self->cache2_entries = client_info->cache2_entries;
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self->cache2_size = client_info->cache2_size;
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self->cache3_entries = client_info->cache3_entries;
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self->cache3_size = client_info->cache3_size;
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self->bitmap_cache_persist_enable = client_info->bitmap_cache_persist_enable;
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self->bitmap_cache_version = client_info->bitmap_cache_version;
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self->pointer_cache_entries = client_info->pointer_cache_entries;
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xrdp_cache_reset_lru(self);
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xrdp_cache_reset_crc(self);
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return 0;
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}
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#define COMPARE_WITH_CRC32(_b1, _b2) \
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((_b1 != 0) && (_b2 != 0) && (_b1->crc32 == _b2->crc32) && \
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(_b1->bpp == _b2->bpp) && \
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(_b1->width == _b2->width) && (_b1->height == _b2->height))
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/*****************************************************************************/
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static int APP_CC
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xrdp_cache_update_lru(struct xrdp_cache *self, int cache_id, int lru_index)
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{
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int tail_index;
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struct xrdp_lru_item *nextlru;
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struct xrdp_lru_item *prevlru;
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struct xrdp_lru_item *thislru;
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struct xrdp_lru_item *taillru;
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LLOGLN(10, ("xrdp_cache_update_lru: lru_index %d", lru_index));
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if ((lru_index < 0) || (lru_index >= XRDP_MAX_BITMAP_CACHE_IDX))
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{
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LLOGLN(0, ("xrdp_cache_update_lru: error"));
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return 1;
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}
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if (self->lru_tail[cache_id] == lru_index)
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{
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/* nothing to do */
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return 0;
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}
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else if (self->lru_head[cache_id] == lru_index)
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{
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/* moving head item to tail */
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thislru = &(self->bitmap_lrus[cache_id][lru_index]);
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nextlru = &(self->bitmap_lrus[cache_id][thislru->next]);
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tail_index = self->lru_tail[cache_id];
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taillru = &(self->bitmap_lrus[cache_id][tail_index]);
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/* unhook old */
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nextlru->prev = -1;
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/* set head to next */
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self->lru_head[cache_id] = thislru->next;
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/* move to tail and hook up */
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taillru->next = lru_index;
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thislru->prev = tail_index;
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thislru->next = -1;
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/* update tail */
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self->lru_tail[cache_id] = lru_index;
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}
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else
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{
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/* move middle item */
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thislru = &(self->bitmap_lrus[cache_id][lru_index]);
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prevlru = &(self->bitmap_lrus[cache_id][thislru->prev]);
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nextlru = &(self->bitmap_lrus[cache_id][thislru->next]);
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tail_index = self->lru_tail[cache_id];
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taillru = &(self->bitmap_lrus[cache_id][tail_index]);
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/* unhook old */
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prevlru->next = thislru->next;
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nextlru->prev = thislru->prev;
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/* move to tail and hook up */
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taillru->next = lru_index;
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thislru->prev = tail_index;
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thislru->next = -1;
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/* update tail */
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self->lru_tail[cache_id] = lru_index;
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}
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return 0;
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}
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/*****************************************************************************/
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/* returns cache id */
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int APP_CC
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xrdp_cache_add_bitmap(struct xrdp_cache *self, struct xrdp_bitmap *bitmap,
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int hints)
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{
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int index;
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int jndex;
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int cache_id;
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int cache_idx;
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int bmp_size;
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int e;
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int Bpp;
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int crc16;
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int iig;
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int found;
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int cache_entries;
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int lru_index;
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struct list16 *ll;
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struct xrdp_bitmap *lbm;
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struct xrdp_lru_item *llru;
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LLOGLN(10, ("xrdp_cache_add_bitmap:"));
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LLOGLN(10, ("xrdp_cache_add_bitmap: crc16 0x%4.4x",
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bitmap->crc16));
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e = (4 - (bitmap->width % 4)) & 3;
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found = 0;
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cache_id = 0;
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cache_entries = 0;
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/* client Bpp, bmp_size */
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Bpp = (bitmap->bpp + 7) / 8;
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bmp_size = (bitmap->width + e) * bitmap->height * Bpp;
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self->bitmap_stamp++;
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if (bmp_size <= self->cache1_size)
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{
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cache_id = 0;
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cache_entries = self->cache1_entries;
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}
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else if (bmp_size <= self->cache2_size)
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{
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cache_id = 1;
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cache_entries = self->cache2_entries;
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}
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else if (bmp_size <= self->cache3_size)
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{
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cache_id = 2;
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cache_entries = self->cache3_entries;
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}
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else
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{
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log_message(LOG_LEVEL_ERROR, "error in xrdp_cache_add_bitmap, "
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"too big(%d) bpp %d", bmp_size, bitmap->bpp);
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return 0;
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}
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crc16 = bitmap->crc16;
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ll = &(self->crc16[cache_id][crc16]);
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for (jndex = 0; jndex < ll->count; jndex++)
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{
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cache_idx = list16_get_item(ll, jndex);
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if (COMPARE_WITH_CRC32
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(self->bitmap_items[cache_id][cache_idx].bitmap, bitmap))
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{
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LLOGLN(10, ("found bitmap at %d %d", index, jndex));
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found = 1;
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break;
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}
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}
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if (found)
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{
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lru_index = self->bitmap_items[cache_id][cache_idx].lru_index;
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self->bitmap_items[cache_id][cache_idx].stamp = self->bitmap_stamp;
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xrdp_bitmap_delete(bitmap);
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/* update lru to end */
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xrdp_cache_update_lru(self, cache_id, lru_index);
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return MAKELONG(cache_idx, cache_id);
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}
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/* find lru */
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/* check for reset */
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if (self->lru_reset[cache_id])
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{
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self->lru_reset[cache_id] = 0;
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LLOGLN(0, ("xrdp_cache_add_bitmap: reset detected cache_id %d",
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cache_id));
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self->lru_tail[cache_id] = cache_entries - 1;
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index = self->lru_tail[cache_id];
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llru = &(self->bitmap_lrus[cache_id][index]);
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llru->next = -1;
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}
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/* lru is item at head */
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lru_index = self->lru_head[cache_id];
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cache_idx = lru_index;
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/* update lru to end */
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xrdp_cache_update_lru(self, cache_id, lru_index);
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LLOGLN(10, ("xrdp_cache_add_bitmap: oldest %d %d", cache_id, cache_idx));
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LLOGLN(10, ("adding bitmap at %d %d old ptr %p new ptr %p",
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cache_id, cache_idx,
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self->bitmap_items[cache_id][cache_idx].bitmap,
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bitmap));
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/* remove old, about to be deleted, from crc16 list */
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lbm = self->bitmap_items[cache_id][cache_idx].bitmap;
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if (lbm != 0)
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{
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crc16 = lbm->crc16;
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ll = &(self->crc16[cache_id][crc16]);
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iig = list16_index_of(ll, cache_idx);
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if (iig == -1)
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{
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LLOGLN(0, ("xrdp_cache_add_bitmap: error removing cache_idx"));
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}
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LLOGLN(10, ("xrdp_cache_add_bitmap: removing index %d from crc16 %d",
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iig, crc16));
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list16_remove_item(ll, iig);
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xrdp_bitmap_delete(lbm);
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}
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/* set, send bitmap and return */
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self->bitmap_items[cache_id][cache_idx].bitmap = bitmap;
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self->bitmap_items[cache_id][cache_idx].stamp = self->bitmap_stamp;
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self->bitmap_items[cache_id][cache_idx].lru_index = lru_index;
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/* add to crc16 list */
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crc16 = bitmap->crc16;
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ll = &(self->crc16[cache_id][crc16]);
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list16_add_item(ll, cache_idx);
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if (ll->count > 1)
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{
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LLOGLN(10, ("xrdp_cache_add_bitmap: count %d", ll->count));
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}
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if (self->use_bitmap_comp)
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{
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if (self->bitmap_cache_version & 4)
|
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{
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if (libxrdp_orders_send_bitmap3(self->session, bitmap->width,
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bitmap->height, bitmap->bpp,
|
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bitmap->data, cache_id, cache_idx,
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hints) == 0)
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{
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return MAKELONG(cache_idx, cache_id);
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}
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}
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if (self->bitmap_cache_version & 2)
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{
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libxrdp_orders_send_bitmap2(self->session, bitmap->width,
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bitmap->height, bitmap->bpp,
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bitmap->data, cache_id, cache_idx,
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hints);
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}
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else if (self->bitmap_cache_version & 1)
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{
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libxrdp_orders_send_bitmap(self->session, bitmap->width,
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bitmap->height, bitmap->bpp,
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bitmap->data, cache_id, cache_idx);
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}
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}
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else
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{
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if (self->bitmap_cache_version & 2)
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{
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libxrdp_orders_send_raw_bitmap2(self->session, bitmap->width,
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bitmap->height, bitmap->bpp,
|
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bitmap->data, cache_id, cache_idx);
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}
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else if (self->bitmap_cache_version & 1)
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{
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libxrdp_orders_send_raw_bitmap(self->session, bitmap->width,
|
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bitmap->height, bitmap->bpp,
|
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bitmap->data, cache_id, cache_idx);
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}
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}
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return MAKELONG(cache_idx, cache_id);
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|
}
|
|
|
|
/*****************************************************************************/
|
|
/* not used */
|
|
/* not sure how to use a palette in rdp */
|
|
int APP_CC
|
|
xrdp_cache_add_palette(struct xrdp_cache *self, int *palette)
|
|
{
|
|
int i;
|
|
int oldest;
|
|
int index;
|
|
|
|
if (self == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (palette == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (self->wm->screen->bpp > 8)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
self->palette_stamp++;
|
|
|
|
/* look for match */
|
|
for (i = 0; i < 6; i++)
|
|
{
|
|
if (g_memcmp(palette, self->palette_items[i].palette,
|
|
256 * sizeof(int)) == 0)
|
|
{
|
|
self->palette_items[i].stamp = self->palette_stamp;
|
|
return i;
|
|
}
|
|
}
|
|
|
|
/* look for oldest */
|
|
index = 0;
|
|
oldest = 0x7fffffff;
|
|
|
|
for (i = 0; i < 6; i++)
|
|
{
|
|
if (self->palette_items[i].stamp < oldest)
|
|
{
|
|
oldest = self->palette_items[i].stamp;
|
|
index = i;
|
|
}
|
|
}
|
|
|
|
/* set, send palette and return */
|
|
g_memcpy(self->palette_items[index].palette, palette, 256 * sizeof(int));
|
|
self->palette_items[index].stamp = self->palette_stamp;
|
|
libxrdp_orders_send_palette(self->session, palette, index);
|
|
return index;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
int APP_CC
|
|
xrdp_cache_add_char(struct xrdp_cache *self,
|
|
struct xrdp_font_char *font_item)
|
|
{
|
|
int i;
|
|
int j;
|
|
int oldest;
|
|
int f;
|
|
int c;
|
|
int datasize;
|
|
struct xrdp_font_char *fi;
|
|
|
|
self->char_stamp++;
|
|
|
|
/* look for match */
|
|
for (i = 7; i < 12; i++)
|
|
{
|
|
for (j = 0; j < 250; j++)
|
|
{
|
|
if (xrdp_font_item_compare(&self->char_items[i][j].font_item, font_item))
|
|
{
|
|
self->char_items[i][j].stamp = self->char_stamp;
|
|
DEBUG(("found font at %d %d", i, j));
|
|
return MAKELONG(j, i);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* look for oldest */
|
|
f = 0;
|
|
c = 0;
|
|
oldest = 0x7fffffff;
|
|
|
|
for (i = 7; i < 12; i++)
|
|
{
|
|
for (j = 0; j < 250; j++)
|
|
{
|
|
if (self->char_items[i][j].stamp < oldest)
|
|
{
|
|
oldest = self->char_items[i][j].stamp;
|
|
f = i;
|
|
c = j;
|
|
}
|
|
}
|
|
}
|
|
|
|
DEBUG(("adding char at %d %d", f, c));
|
|
/* set, send char and return */
|
|
fi = &self->char_items[f][c].font_item;
|
|
g_free(fi->data);
|
|
datasize = FONT_DATASIZE(font_item);
|
|
fi->data = (char *)g_malloc(datasize, 1);
|
|
g_memcpy(fi->data, font_item->data, datasize);
|
|
fi->offset = font_item->offset;
|
|
fi->baseline = font_item->baseline;
|
|
fi->width = font_item->width;
|
|
fi->height = font_item->height;
|
|
self->char_items[f][c].stamp = self->char_stamp;
|
|
libxrdp_orders_send_font(self->session, fi, f, c);
|
|
return MAKELONG(c, f);
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* added the pointer to the cache and send it to client, it also sets the
|
|
client if it finds it
|
|
returns the index in the cache
|
|
does not take ownership of pointer_item */
|
|
int APP_CC
|
|
xrdp_cache_add_pointer(struct xrdp_cache *self,
|
|
struct xrdp_pointer_item *pointer_item)
|
|
{
|
|
int i;
|
|
int oldest;
|
|
int index;
|
|
|
|
if (self == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
self->pointer_stamp++;
|
|
|
|
/* look for match */
|
|
for (i = 2; i < self->pointer_cache_entries; i++)
|
|
{
|
|
if (self->pointer_items[i].x == pointer_item->x &&
|
|
self->pointer_items[i].y == pointer_item->y &&
|
|
g_memcmp(self->pointer_items[i].data,
|
|
pointer_item->data, 32 * 32 * 4) == 0 &&
|
|
g_memcmp(self->pointer_items[i].mask,
|
|
pointer_item->mask, 32 * 32 / 8) == 0 &&
|
|
self->pointer_items[i].bpp == pointer_item->bpp)
|
|
{
|
|
self->pointer_items[i].stamp = self->pointer_stamp;
|
|
xrdp_wm_set_pointer(self->wm, i);
|
|
self->wm->current_pointer = i;
|
|
DEBUG(("found pointer at %d", i));
|
|
return i;
|
|
}
|
|
}
|
|
|
|
/* look for oldest */
|
|
index = 2;
|
|
oldest = 0x7fffffff;
|
|
|
|
for (i = 2; i < self->pointer_cache_entries; i++)
|
|
{
|
|
if (self->pointer_items[i].stamp < oldest)
|
|
{
|
|
oldest = self->pointer_items[i].stamp;
|
|
index = i;
|
|
}
|
|
}
|
|
|
|
self->pointer_items[index].x = pointer_item->x;
|
|
self->pointer_items[index].y = pointer_item->y;
|
|
g_memcpy(self->pointer_items[index].data,
|
|
pointer_item->data, 32 * 32 * 4);
|
|
g_memcpy(self->pointer_items[index].mask,
|
|
pointer_item->mask, 32 * 32 / 8);
|
|
self->pointer_items[index].stamp = self->pointer_stamp;
|
|
self->pointer_items[index].bpp = pointer_item->bpp;
|
|
xrdp_wm_send_pointer(self->wm, index,
|
|
self->pointer_items[index].data,
|
|
self->pointer_items[index].mask,
|
|
self->pointer_items[index].x,
|
|
self->pointer_items[index].y,
|
|
self->pointer_items[index].bpp);
|
|
self->wm->current_pointer = index;
|
|
DEBUG(("adding pointer at %d", index));
|
|
return index;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* this does not take ownership of pointer_item, it makes a copy */
|
|
int APP_CC
|
|
xrdp_cache_add_pointer_static(struct xrdp_cache *self,
|
|
struct xrdp_pointer_item *pointer_item,
|
|
int index)
|
|
{
|
|
|
|
if (self == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
self->pointer_items[index].x = pointer_item->x;
|
|
self->pointer_items[index].y = pointer_item->y;
|
|
g_memcpy(self->pointer_items[index].data,
|
|
pointer_item->data, 32 * 32 * 4);
|
|
g_memcpy(self->pointer_items[index].mask,
|
|
pointer_item->mask, 32 * 32 / 8);
|
|
self->pointer_items[index].stamp = self->pointer_stamp;
|
|
self->pointer_items[index].bpp = pointer_item->bpp;
|
|
xrdp_wm_send_pointer(self->wm, index,
|
|
self->pointer_items[index].data,
|
|
self->pointer_items[index].mask,
|
|
self->pointer_items[index].x,
|
|
self->pointer_items[index].y,
|
|
self->pointer_items[index].bpp);
|
|
self->wm->current_pointer = index;
|
|
DEBUG(("adding pointer at %d", index));
|
|
return index;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* this does not take ownership of brush_item_data, it makes a copy */
|
|
int APP_CC
|
|
xrdp_cache_add_brush(struct xrdp_cache *self,
|
|
char *brush_item_data)
|
|
{
|
|
int i;
|
|
int oldest;
|
|
int index;
|
|
|
|
if (self == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
self->brush_stamp++;
|
|
|
|
/* look for match */
|
|
for (i = 0; i < 64; i++)
|
|
{
|
|
if (g_memcmp(self->brush_items[i].pattern,
|
|
brush_item_data, 8) == 0)
|
|
{
|
|
self->brush_items[i].stamp = self->brush_stamp;
|
|
DEBUG(("found brush at %d", i));
|
|
return i;
|
|
}
|
|
}
|
|
|
|
/* look for oldest */
|
|
index = 0;
|
|
oldest = 0x7fffffff;
|
|
|
|
for (i = 0; i < 64; i++)
|
|
{
|
|
if (self->brush_items[i].stamp < oldest)
|
|
{
|
|
oldest = self->brush_items[i].stamp;
|
|
index = i;
|
|
}
|
|
}
|
|
|
|
g_memcpy(self->brush_items[index].pattern,
|
|
brush_item_data, 8);
|
|
self->brush_items[index].stamp = self->brush_stamp;
|
|
libxrdp_orders_send_brush(self->session, 8, 8, 1, 0x81, 8,
|
|
self->brush_items[index].pattern, index);
|
|
DEBUG(("adding brush at %d", index));
|
|
return index;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* returns error */
|
|
int APP_CC
|
|
xrdp_cache_add_os_bitmap(struct xrdp_cache *self, struct xrdp_bitmap *bitmap,
|
|
int rdpindex)
|
|
{
|
|
struct xrdp_os_bitmap_item *bi;
|
|
|
|
if ((rdpindex < 0) || (rdpindex >= 2000))
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
bi = self->os_bitmap_items + rdpindex;
|
|
bi->bitmap = bitmap;
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* returns error */
|
|
int APP_CC
|
|
xrdp_cache_remove_os_bitmap(struct xrdp_cache *self, int rdpindex)
|
|
{
|
|
struct xrdp_os_bitmap_item *bi;
|
|
int index;
|
|
|
|
if ((rdpindex < 0) || (rdpindex >= 2000))
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
bi = self->os_bitmap_items + rdpindex;
|
|
|
|
if (bi->bitmap->tab_stop)
|
|
{
|
|
index = list_index_of(self->xrdp_os_del_list, rdpindex);
|
|
|
|
if (index == -1)
|
|
{
|
|
list_add_item(self->xrdp_os_del_list, rdpindex);
|
|
}
|
|
}
|
|
|
|
xrdp_bitmap_delete(bi->bitmap);
|
|
g_memset(bi, 0, sizeof(struct xrdp_os_bitmap_item));
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
struct xrdp_os_bitmap_item *APP_CC
|
|
xrdp_cache_get_os_bitmap(struct xrdp_cache *self, int rdpindex)
|
|
{
|
|
struct xrdp_os_bitmap_item *bi;
|
|
|
|
if ((rdpindex < 0) || (rdpindex >= 2000))
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
bi = self->os_bitmap_items + rdpindex;
|
|
return bi;
|
|
}
|