[Spice-devel] [PATCH 1/9] Limit direct access to DisplayChannelClient

Frediano Ziglio fziglio at redhat.com
Fri Aug 5 11:51:05 UTC 2016


> 
> From: Frediano Ziglio <fziglio at redhat.com>
> 

I didn't remember to wrote this patch.
>From https://cgit.freedesktop.org/~fziglio/spice-server/commit/?h=refactory&id=c211e0292e0fbf8754a185f8724d42768e4cdab8
the original author is 	Jonathon Jongsma so should be changed back and possibly
added 2 signed off (me and Jonathon)

> Add a few more methods and accessors so that other files don't need to
> manipulate the struct members directly. Move the struct definition to a
> private header which only the dcc-* files will include.
> ---
>  server/Makefile.am       |  1 +
>  server/dcc-private.h     | 62 ++++++++++++++++++++++++++++++++++++++++++++++
>  server/dcc-send.c        |  2 +-
>  server/dcc.c             | 47 ++++++++++++++++++++++++++++++++++-
>  server/dcc.h             | 64
>  +++++++++++++++++-------------------------------
>  server/display-channel.c | 28 ++++++++++++---------
>  server/display-channel.h |  3 +--
>  server/image-cache.h     |  1 -
>  server/stream.c          | 56 +++++++++++++++++++++---------------------
>  server/stream.h          |  2 +-
>  10 files changed, 178 insertions(+), 88 deletions(-)
>  create mode 100644 server/dcc-private.h
> 
> diff --git a/server/Makefile.am b/server/Makefile.am
> index 921b082..24e6e21 100644
> --- a/server/Makefile.am
> +++ b/server/Makefile.am
> @@ -148,6 +148,7 @@ libserver_la_SOURCES =				\
>  	dcc-send.c					\
>  	dcc.h					\
>  	display-limits.h			\
> +	dcc-private.h				\
>  	image-encoders.c					\
>  	image-encoders.h					\
>  	$(NULL)
> diff --git a/server/dcc-private.h b/server/dcc-private.h
> new file mode 100644
> index 0000000..6e11163
> --- /dev/null
> +++ b/server/dcc-private.h
> @@ -0,0 +1,62 @@
> +/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
> +/*
> +   Copyright (C) 2009-2015 Red Hat, Inc.
> +
> +   This library is free software; you can redistribute it and/or
> +   modify it under the terms of the GNU Lesser General Public
> +   License as published by the Free Software Foundation; either
> +   version 2.1 of the License, or (at your option) any later version.
> +
> +   This library 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
> +   Lesser General Public License for more details.
> +
> +   You should have received a copy of the GNU Lesser General Public
> +   License along with this library; if not, see
> <http://www.gnu.org/licenses/>.
> +*/
> +#ifndef DCC_PRIVATE_H_
> +#define DCC_PRIVATE_H_
> +
> +#include "cache-item.h"
> +#include "dcc.h"
> +#include "image-encoders.h"
> +#include "stream.h"
> +
> +struct DisplayChannelClient {
> +    CommonGraphicsChannelClient common;
> +    uint32_t id;
> +    SpiceImageCompression image_compression;
> +    spice_wan_compression_t jpeg_state;
> +    spice_wan_compression_t zlib_glz_state;
> +
> +    ImageEncoders encoders;
> +
> +    int expect_init;
> +
> +    PixmapCache *pixmap_cache;
> +    uint32_t pixmap_cache_generation;
> +    int pending_pixmaps_sync;
> +
> +    RedCacheItem *palette_cache[PALETTE_CACHE_HASH_SIZE];
> +    Ring palette_cache_lru;
> +    long palette_cache_available;
> +    uint32_t palette_cache_items;
> +
> +    struct {
> +        FreeList free_list;
> +        uint64_t pixmap_cache_items[MAX_DRAWABLE_PIXMAP_CACHE_ITEMS];
> +        int num_pixmap_cache_items;
> +    } send_data;
> +
> +    uint8_t surface_client_created[NUM_SURFACES];
> +    QRegion surface_client_lossy_region[NUM_SURFACES];
> +
> +    StreamAgent stream_agents[NUM_STREAMS];
> +    int use_video_encoder_rate_control;
> +    uint32_t streams_max_latency;
> +    uint64_t streams_max_bit_rate;
> +    bool gl_draw_ongoing;
> +};
> +
> +#endif /* DCC_PRIVATE_H_ */
> diff --git a/server/dcc-send.c b/server/dcc-send.c
> index 56bbf23..395129f 100644
> --- a/server/dcc-send.c
> +++ b/server/dcc-send.c
> @@ -19,7 +19,7 @@
>  #include <config.h>
>  #endif
>  
> -#include "dcc.h"
> +#include "dcc-private.h"
>  #include "display-channel.h"
>  
>  #include <common/marshaller.h>
> diff --git a/server/dcc.c b/server/dcc.c
> index 45c3ca8..c1c30c6 100644
> --- a/server/dcc.c
> +++ b/server/dcc.c
> @@ -19,7 +19,7 @@
>  #include <config.h>
>  #endif
>  
> -#include "dcc.h"
> +#include "dcc-private.h"
>  #include "display-channel.h"
>  
>  #define DISPLAY_CLIENT_SHORT_TIMEOUT 15000000000ULL //nano
> @@ -1129,3 +1129,48 @@ int dcc_handle_migrate_data(DisplayChannelClient *dcc,
> uint32_t size, void *mess
>      red_channel_client_ack_zero_messages_window(RED_CHANNEL_CLIENT(dcc));
>      return TRUE;
>  }
> +
> +StreamAgent* dcc_get_stream_agent(DisplayChannelClient *dcc, int stream_id)
> +{
> +    return &dcc->stream_agents[stream_id];
> +}
> +
> +ImageEncoders* dcc_get_encoders(DisplayChannelClient *dcc)
> +{
> +    return &dcc->encoders;
> +}
> +
> +spice_wan_compression_t dcc_get_jpeg_state(DisplayChannelClient *dcc)
> +{
> +    return dcc->jpeg_state;
> +}
> +
> +spice_wan_compression_t dcc_get_zlib_glz_state(DisplayChannelClient *dcc)
> +{
> +    return dcc->zlib_glz_state;
> +}
> +
> +gboolean dcc_use_video_encoder_rate_control(DisplayChannelClient *dcc)
> +{
> +    return dcc->use_video_encoder_rate_control;
> +}
> +
> +uint32_t dcc_get_max_stream_latency(DisplayChannelClient *dcc)
> +{
> +    return dcc->streams_max_latency;
> +}
> +
> +void dcc_set_max_stream_latency(DisplayChannelClient *dcc, uint32_t latency)
> +{
> +    dcc->streams_max_latency = latency;
> +}
> +
> +uint64_t dcc_get_max_stream_bit_rate(DisplayChannelClient *dcc)
> +{
> +    return dcc->streams_max_bit_rate;
> +}
> +
> +void dcc_set_max_stream_bit_rate(DisplayChannelClient *dcc, uint64_t rate)
> +{
> +    dcc->streams_max_bit_rate = rate;
> +}
> diff --git a/server/dcc.h b/server/dcc.h
> index 5f7b16f..4d9dccb 100644
> --- a/server/dcc.h
> +++ b/server/dcc.h
> @@ -18,11 +18,10 @@
>  #ifndef DCC_H_
>  # define DCC_H_
>  
> -#include "red-worker.h"
> -#include "pixmap-cache.h"
> -#include "cache-item.h"
>  #include "image-encoders.h"
> -#include "stream.h"
> +#include "image-cache.h"
> +#include "pixmap-cache.h"
> +#include "red-worker.h"
>  #include "display-limits.h"
>  
>  #define PALETTE_CACHE_HASH_SHIFT 8
> @@ -42,6 +41,12 @@
>  
>  #define MAX_PIPE_SIZE 50
>  
> +/* FIXME: remove */
> +typedef struct DisplayChannel DisplayChannel;
> +typedef struct Stream Stream;
> +typedef struct StreamAgent StreamAgent;
> +typedef struct GlzSharedDictionary GlzSharedDictionary;
> +

What can I say... let it be!

>  typedef struct WaitForChannels {
>      SpiceMsgWaitForChannels header;
>      SpiceWaitForChannel buf[MAX_CACHE_CLIENTS];
> @@ -54,45 +59,10 @@ typedef struct FreeList {
>      WaitForChannels wait;
>  } FreeList;
>  
> -struct DisplayChannelClient {
> -    CommonGraphicsChannelClient common;
> -    uint32_t id;
> -    SpiceImageCompression image_compression;
> -    spice_wan_compression_t jpeg_state;
> -    spice_wan_compression_t zlib_glz_state;
> -
> -    ImageEncoders encoders;
> -
> -    int expect_init;
> +typedef struct DisplayChannelClient DisplayChannelClient;
>  
> -    PixmapCache *pixmap_cache;
> -    uint32_t pixmap_cache_generation;
> -    int pending_pixmaps_sync;
> -
> -    RedCacheItem *palette_cache[PALETTE_CACHE_HASH_SIZE];
> -    Ring palette_cache_lru;
> -    long palette_cache_available;
> -    uint32_t palette_cache_items;
> -
> -    struct {
> -        FreeList free_list;
> -        uint64_t pixmap_cache_items[MAX_DRAWABLE_PIXMAP_CACHE_ITEMS];
> -        int num_pixmap_cache_items;
> -    } send_data;
> -
> -    uint8_t surface_client_created[NUM_SURFACES];
> -    QRegion surface_client_lossy_region[NUM_SURFACES];
> -
> -    StreamAgent stream_agents[NUM_STREAMS];
> -    int use_video_encoder_rate_control;
> -    uint32_t streams_max_latency;
> -    uint64_t streams_max_bit_rate;
> -    bool gl_draw_ongoing;
> -};
> -
> -#define DCC_TO_DC(dcc)                                                  \
> -     SPICE_CONTAINEROF((dcc)->common.base.channel, DisplayChannel,
> common.base)
> -#define RCC_TO_DCC(rcc) SPICE_CONTAINEROF((rcc), DisplayChannelClient,
> common.base)
> +#define DCC_TO_DC(dcc) ((DisplayChannel*)((RedChannelClient*)dcc)->channel)
> +#define RCC_TO_DCC(rcc) ((DisplayChannelClient*)rcc)
>  
>  typedef struct RedSurfaceCreateItem {
>      RedPipeItem pipe_item;
> @@ -193,4 +163,14 @@ int                        dcc_compress_image
> (DisplayCha
>                                                                        int
>                                                                        can_lossy,
>                                                                        compress_send_data_t*
>                                                                        o_comp_data);
>  
> +StreamAgent *              dcc_get_stream_agent
> (DisplayChannelClient *dcc, int stream_id);
> +ImageEncoders *dcc_get_encoders(DisplayChannelClient *dcc);
> +spice_wan_compression_t    dcc_get_jpeg_state
> (DisplayChannelClient *dcc);
> +spice_wan_compression_t    dcc_get_zlib_glz_state
> (DisplayChannelClient *dcc);
> +gboolean                   dcc_use_video_encoder_rate_control
> (DisplayChannelClient *dcc);
> +uint32_t dcc_get_max_stream_latency(DisplayChannelClient *dcc);
> +void dcc_set_max_stream_latency(DisplayChannelClient *dcc, uint32_t
> latency);
> +uint64_t dcc_get_max_stream_bit_rate(DisplayChannelClient *dcc);
> +void dcc_set_max_stream_bit_rate(DisplayChannelClient *dcc, uint64_t rate);
> +
>  #endif /* DCC_H_ */
> diff --git a/server/display-channel.c b/server/display-channel.c
> index 073d45e..89bb0c6 100644
> --- a/server/display-channel.c
> +++ b/server/display-channel.c
> @@ -230,7 +230,7 @@ static void streams_update_visible_region(DisplayChannel
> *display, Drawable *dra
>          }
>  
>          FOREACH_CLIENT(display, link, next, dcc) {
> -            agent = &dcc->stream_agents[get_stream_id(display, stream)];
> +            agent = dcc_get_stream_agent(dcc, get_stream_id(display,
> stream));
>  
>              if (region_intersects(&agent->vis_region,
>              &drawable->tree_item.base.rgn)) {
>                  region_exclude(&agent->vis_region,
>                  &drawable->tree_item.base.rgn);
> @@ -1151,7 +1151,7 @@ void
> display_channel_free_glz_drawables_to_free(DisplayChannel *display)
>      spice_return_if_fail(display);
>  
>      FOREACH_CLIENT(display, link, next, dcc) {
> -        image_encoders_free_glz_drawables_to_free(&dcc->encoders);
> +        image_encoders_free_glz_drawables_to_free(dcc_get_encoders(dcc));
>      }
>  }
>  
> @@ -1163,7 +1163,7 @@ void display_channel_free_glz_drawables(DisplayChannel
> *display)
>      spice_return_if_fail(display);
>  
>      FOREACH_CLIENT(display, link, next, dcc) {
> -        image_encoders_free_glz_drawables(&dcc->encoders);
> +        image_encoders_free_glz_drawables(dcc_get_encoders(dcc));
>      }
>  }
>  
> @@ -1206,10 +1206,12 @@ void display_channel_free_some(DisplayChannel
> *display)
>      spice_debug("#draw=%d, #glz_draw=%d", display->drawable_count,
>                  display->encoder_shared_data.glz_drawable_count);
>      FOREACH_CLIENT(display, link, next, dcc) {
> +        ImageEncoders *encoders = dcc_get_encoders(dcc);
> +
>          // encoding using the dictionary is prevented since the following
>          operations might
>          // change the dictionary
> -        if (image_encoders_glz_encode_lock(&dcc->encoders)) {
> -            n =
> image_encoders_free_some_independent_glz_drawables(&dcc->encoders);
> +        if (image_encoders_glz_encode_lock(encoders)) {
> +            n =
> image_encoders_free_some_independent_glz_drawables(encoders);
>          }
>      }
>  
> @@ -1218,7 +1220,9 @@ void display_channel_free_some(DisplayChannel *display)
>      }
>  
>      FOREACH_CLIENT(display, link, next, dcc) {
> -        image_encoders_glz_encode_unlock(&dcc->encoders);
> +        ImageEncoders *encoders = dcc_get_encoders(dcc);
> +
> +        image_encoders_glz_encode_unlock(encoders);
>      }
>  }
>  
> @@ -1987,16 +1991,16 @@ void
> display_channel_process_surface_cmd(DisplayChannel *display, RedSurfaceCmd
>  
>  void display_channel_update_compression(DisplayChannel *display,
>  DisplayChannelClient *dcc)
>  {
> -    if (dcc->jpeg_state == SPICE_WAN_COMPRESSION_AUTO) {
> -        display->enable_jpeg = dcc->common.is_low_bandwidth;
> +    if (dcc_get_jpeg_state(dcc) == SPICE_WAN_COMPRESSION_AUTO) {
> +        display->enable_jpeg =
> ((CommonGraphicsChannelClient*)dcc)->is_low_bandwidth;
>      } else {
> -        display->enable_jpeg = (dcc->jpeg_state ==
> SPICE_WAN_COMPRESSION_ALWAYS);
> +        display->enable_jpeg = (dcc_get_jpeg_state(dcc) ==
> SPICE_WAN_COMPRESSION_ALWAYS);
>      }
>  
> -    if (dcc->zlib_glz_state == SPICE_WAN_COMPRESSION_AUTO) {
> -        display->enable_zlib_glz_wrap = dcc->common.is_low_bandwidth;
> +    if (dcc_get_zlib_glz_state(dcc) == SPICE_WAN_COMPRESSION_AUTO) {
> +        display->enable_zlib_glz_wrap =
> ((CommonGraphicsChannelClient*)dcc)->is_low_bandwidth;
>      } else {
> -        display->enable_zlib_glz_wrap = (dcc->zlib_glz_state ==
> SPICE_WAN_COMPRESSION_ALWAYS);
> +        display->enable_zlib_glz_wrap = (dcc_get_zlib_glz_state(dcc) ==
> SPICE_WAN_COMPRESSION_ALWAYS);
>      }
>      spice_info("jpeg %s", display->enable_jpeg ? "enabled" : "disabled");
>      spice_info("zlib-over-glz %s", display->enable_zlib_glz_wrap ? "enabled"
>      : "disabled");
> diff --git a/server/display-channel.h b/server/display-channel.h
> index f090d99..f133c62 100644
> --- a/server/display-channel.h
> +++ b/server/display-channel.h
> @@ -44,8 +44,7 @@
>  #include "tree.h"
>  #include "stream.h"
>  #include "dcc.h"
> -#include "display-limits.h"
> -
> +#include "image-encoders.h"
>  
>  typedef struct DependItem {
>      Drawable *drawable;
> diff --git a/server/image-cache.h b/server/image-cache.h
> index b90a3b3..d86c8b7 100644
> --- a/server/image-cache.h
> +++ b/server/image-cache.h
> @@ -25,7 +25,6 @@
>  
>  /* FIXME: move back to display-channel.h (once structs are private) */
>  typedef struct Drawable Drawable;
> -typedef struct DisplayChannelClient DisplayChannelClient;
>  
>  typedef struct ImageCacheItem {
>      RingItem lru_link;
> diff --git a/server/stream.c b/server/stream.c
> index 985bc71..9e7fa3a 100644
> --- a/server/stream.c
> +++ b/server/stream.c
> @@ -66,7 +66,7 @@ static void stream_agent_stats_print(StreamAgent *agent)
>  static void stream_create_destroy_item_release(RedPipeItem *base)
>  {
>      StreamCreateDestroyItem *item = SPICE_UPCAST(StreamCreateDestroyItem,
>      base);
> -    DisplayChannel *display =
> (DisplayChannel*)item->agent->dcc->common.base.channel;
> +    DisplayChannel *display = DCC_TO_DC(item->agent->dcc);
>      stream_agent_unref(display, item->agent);
>      free(item);
>  }
> @@ -105,17 +105,17 @@ void stream_stop(DisplayChannel *display, Stream
> *stream)
>      FOREACH_CLIENT(display, link, next, dcc) {
>          StreamAgent *stream_agent;
>  
> -        stream_agent = &dcc->stream_agents[get_stream_id(display, stream)];
> +        stream_agent = dcc_get_stream_agent(dcc, get_stream_id(display,
> stream));
>          region_clear(&stream_agent->vis_region);
>          region_clear(&stream_agent->clip);
> -        if (stream_agent->video_encoder &&
> dcc->use_video_encoder_rate_control) {
> +        if (stream_agent->video_encoder &&
> dcc_use_video_encoder_rate_control(dcc)) {
>              uint64_t stream_bit_rate =
>              stream_agent->video_encoder->get_bit_rate(stream_agent->video_encoder);
>  
> -            if (stream_bit_rate > dcc->streams_max_bit_rate) {
> +            if (stream_bit_rate > dcc_get_max_stream_bit_rate(dcc)) {
>                  spice_debug("old max-bit-rate=%.2f new=%.2f",
> -                            dcc->streams_max_bit_rate / 8.0 / 1024.0 /
> 1024.0,
> +                            dcc_get_max_stream_bit_rate(dcc) / 8.0 / 1024.0
> / 1024.0,
>                              stream_bit_rate / 8.0 / 1024.0 / 1024.0);
> -                dcc->streams_max_bit_rate = stream_bit_rate;
> +                dcc_set_max_stream_bit_rate(dcc, stream_bit_rate);
>              }
>          }
>          red_channel_client_pipe_add(RED_CHANNEL_CLIENT(dcc),
>          stream_destroy_item_new(stream_agent));
> @@ -303,7 +303,7 @@ static void attach_stream(DisplayChannel *display,
> Drawable *drawable, Stream *s
>          StreamAgent *agent;
>          QRegion clip_in_draw_dest;
>  
> -        agent = &dcc->stream_agents[get_stream_id(display, stream)];
> +        agent = dcc_get_stream_agent(dcc, get_stream_id(display, stream));
>          region_or(&agent->vis_region, &drawable->tree_item.base.rgn);
>  
>          region_init(&clip_in_draw_dest);
> @@ -353,10 +353,10 @@ static void before_reattach_stream(DisplayChannel
> *display,
>      index = get_stream_id(display, stream);
>      DRAWABLE_FOREACH_DPI_SAFE(stream->current, ring_item, next, dpi) {
>          dcc = dpi->dcc;
> -        agent = &dcc->stream_agents[index];
> +        agent = dcc_get_stream_agent(dcc, index);
>  
> -        if (!dcc->use_video_encoder_rate_control &&
> -            !dcc->common.is_low_bandwidth) {
> +        if (!dcc_use_video_encoder_rate_control(dcc) &&
> +            !((CommonGraphicsChannelClient*)dcc)->is_low_bandwidth) {
>              continue;
>          }
>  
> @@ -364,7 +364,7 @@ static void before_reattach_stream(DisplayChannel
> *display,
>  #ifdef STREAM_STATS
>              agent->stats.num_drops_pipe++;
>  #endif
> -            if (dcc->use_video_encoder_rate_control) {
> +            if (dcc_use_video_encoder_rate_control(dcc)) {
>                  agent->video_encoder->notify_server_frame_drop(agent->video_encoder);
>              } else {
>                  ++agent->drops;
> @@ -376,9 +376,9 @@ static void before_reattach_stream(DisplayChannel
> *display,
>      FOREACH_CLIENT(display, link, link_next, dcc) {
>          double drop_factor;
>  
> -        agent = &dcc->stream_agents[index];
> +        agent = dcc_get_stream_agent(dcc, index);
>  
> -        if (dcc->use_video_encoder_rate_control) {
> +        if (dcc_use_video_encoder_rate_control(dcc)) {
>              continue;
>          }
>          if (agent->frames / agent->fps < FPS_TEST_INTERVAL) {
> @@ -593,16 +593,16 @@ static void
> dcc_update_streams_max_latency(DisplayChannelClient *dcc, StreamAgen
>      uint32_t new_max_latency = 0;
>      int i;
>  
> -    if (dcc->streams_max_latency != remove_agent->client_required_latency) {
> +    if (dcc_get_max_stream_latency(dcc) !=
> remove_agent->client_required_latency) {
>          return;
>      }
>  
> -    dcc->streams_max_latency = 0;
> +    dcc_set_max_stream_latency(dcc, 0);
>      if (DCC_TO_DC(dcc)->stream_count == 1) {
>          return;
>      }
>      for (i = 0; i < NUM_STREAMS; i++) {
> -        StreamAgent *other_agent = &dcc->stream_agents[i];
> +        StreamAgent *other_agent = dcc_get_stream_agent(dcc, i);
>          if (other_agent == remove_agent || !other_agent->video_encoder) {
>              continue;
>          }
> @@ -610,7 +610,7 @@ static void
> dcc_update_streams_max_latency(DisplayChannelClient *dcc, StreamAgen
>              new_max_latency = other_agent->client_required_latency;
>          }
>      }
> -    dcc->streams_max_latency = new_max_latency;
> +    dcc_set_max_stream_latency(dcc, new_max_latency);
>  }
>  
>  static uint64_t get_initial_bit_rate(DisplayChannelClient *dcc, Stream
>  *stream)
> @@ -639,7 +639,7 @@ static uint64_t get_initial_bit_rate(DisplayChannelClient
> *dcc, Stream *stream)
>          net_test_bit_rate =
>          main_channel_client_is_network_info_initialized(mcc) ?
>                                  main_channel_client_get_bitrate_per_sec(mcc)
>                                  :
>                                  0;
> -        bit_rate = MAX(dcc->streams_max_bit_rate, net_test_bit_rate);
> +        bit_rate = MAX(dcc_get_max_stream_bit_rate(dcc), net_test_bit_rate);
>          if (bit_rate == 0) {
>              /*
>               * In case we are after a spice session migration,
> @@ -647,7 +647,7 @@ static uint64_t get_initial_bit_rate(DisplayChannelClient
> *dcc, Stream *stream)
>               * If the network info is not initialized due to another reason,
>               * the low_bandwidth flag is FALSE.
>               */
> -            bit_rate = dcc->common.is_low_bandwidth ?
> +            bit_rate = ((CommonGraphicsChannelClient*)dcc)->is_low_bandwidth
> ?
>                  RED_STREAM_DEFAULT_LOW_START_BIT_RATE :
>                  RED_STREAM_DEFAULT_HIGH_START_BIT_RATE;
>          }
> @@ -691,18 +691,18 @@ static void update_client_playback_delay(void *opaque,
> uint32_t delay_ms)
>  {
>      StreamAgent *agent = opaque;
>      DisplayChannelClient *dcc = agent->dcc;
> -    RedsState *reds = red_channel_get_server(dcc->common.base.channel);
> +    RedsState *reds =
> red_channel_get_server(((RedChannelClient*)dcc)->channel);
>  
>      dcc_update_streams_max_latency(dcc, agent);
>  
>      agent->client_required_latency = delay_ms;
> -    if (delay_ms > agent->dcc->streams_max_latency) {
> -        agent->dcc->streams_max_latency = delay_ms;
> +    if (delay_ms > dcc_get_max_stream_latency(agent->dcc)) {
> +        dcc_set_max_stream_latency(agent->dcc, delay_ms);
>      }
> -    spice_debug("resetting client latency: %u",
> agent->dcc->streams_max_latency);
> +    spice_debug("resetting client latency: %u",
> dcc_get_max_stream_latency(agent->dcc));
>      main_dispatcher_set_mm_time_latency(reds_get_main_dispatcher(reds),
>                                          RED_CHANNEL_CLIENT(agent->dcc)->client,
> -                                        agent->dcc->streams_max_latency);
> +
> dcc_get_max_stream_latency(agent->dcc));
>  }
>  
>  static void bitmap_ref(gpointer data)
> @@ -757,7 +757,7 @@ static VideoEncoder*
> dcc_create_video_encoder(DisplayChannelClient *dcc,
>  
>  void dcc_create_stream(DisplayChannelClient *dcc, Stream *stream)
>  {
> -    StreamAgent *agent = &dcc->stream_agents[get_stream_id(DCC_TO_DC(dcc),
> stream)];
> +    StreamAgent *agent = dcc_get_stream_agent(dcc,
> get_stream_id(DCC_TO_DC(dcc), stream));
>  
>      spice_return_if_fail(region_is_empty(&agent->vis_region));
>  
> @@ -772,7 +772,7 @@ void dcc_create_stream(DisplayChannelClient *dcc, Stream
> *stream)
>      agent->fps = MAX_FPS;
>      agent->dcc = dcc;
>  
> -    if (dcc->use_video_encoder_rate_control) {
> +    if (dcc_use_video_encoder_rate_control(dcc)) {
>          VideoEncoderRateControlCbs video_cbs;
>          uint64_t initial_bit_rate;
>  
> @@ -838,7 +838,7 @@ static void
> dcc_detach_stream_gracefully(DisplayChannelClient *dcc,
>  {
>      DisplayChannel *display = DCC_TO_DC(dcc);
>      int stream_id = get_stream_id(display, stream);
> -    StreamAgent *agent = &dcc->stream_agents[stream_id];
> +    StreamAgent *agent = dcc_get_stream_agent(dcc, stream_id);
>  
>      /* stopping the client from playing older frames at once*/
>      region_clear(&agent->clip);
> @@ -934,7 +934,7 @@ void stream_detach_behind(DisplayChannel *display,
> QRegion *region, Drawable *dr
>          item = ring_next(ring, item);
>  
>          FOREACH_CLIENT(display, link, next, dcc) {
> -            StreamAgent *agent = &dcc->stream_agents[get_stream_id(display,
> stream)];
> +            StreamAgent *agent = dcc_get_stream_agent(dcc,
> get_stream_id(display, stream));
>  
>              if (region_intersects(&agent->vis_region, region)) {
>                  dcc_detach_stream_gracefully(dcc, stream, drawable);
> diff --git a/server/stream.h b/server/stream.h
> index b4fe540..26fb9a9 100644
> --- a/server/stream.h
> +++ b/server/stream.h
> @@ -24,7 +24,7 @@
>  #include "utils.h"
>  #include "video-encoder.h"
>  #include "red-channel.h"
> -#include "image-cache.h"
> +#include "dcc.h"
>  
>  #define RED_STREAM_DETACTION_MAX_DELTA (NSEC_PER_SEC / 5)
>  #define RED_STREAM_CONTINUS_MAX_DELTA NSEC_PER_SEC

I remember I fixed these typos ...
Yes, in 777a4c4987cd657c7d0f463e615905e6263b2a2b (3 days ago).

Frediano


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