Re: [PATCH v2 04/18] worker: start a DisplayChannelClient unit

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---
 server/Makefile.am       |   3 ++
 server/dcc-encoders.c    |   1 -
 server/dcc-encoders.h    |   1 +
 server/dcc.c             | 137 +++++++++++++++++++++++++++++++++++++++++++++++
 server/dcc.h             | 134 +++++++++++++++++++++++++++++++++++++++++++++
 server/display-channel.c | 127 +------------------------------------------
 server/display-channel.h | 112 +-------------------------------------
 server/display-limits.h  |  27 ++++++++++
 server/red_worker.c      |   4 +-
 9 files changed, 308 insertions(+), 238 deletions(-)
 create mode 100644 server/dcc.c
 create mode 100644 server/dcc.h
 create mode 100644 server/display-limits.h


Changes:
- add a new display-limits.h header file to keep configuration limits
  instead of moving define where compiler is happy.


diff --git a/server/Makefile.am b/server/Makefile.am
index 5907dd2..669664a 100644
--- a/server/Makefile.am
+++ b/server/Makefile.am
@@ -138,6 +138,9 @@ libspice_server_la_SOURCES =			\
 	utils.h					\
 	stream.c					\
 	stream.h					\
+	dcc.c					\
+	dcc.h					\
+	display-limits.h			\
 	dcc-encoders.c					\
 	dcc-encoders.h					\
 	$(NULL)
diff --git a/server/dcc-encoders.c b/server/dcc-encoders.c
index 45db96f..0a0997a 100644
--- a/server/dcc-encoders.c
+++ b/server/dcc-encoders.c
@@ -20,7 +20,6 @@
 #endif
 
 #include <glib.h>
-#include <setjmp.h>
 
 #include "dcc-encoders.h"
 #include "display-channel.h"
diff --git a/server/dcc-encoders.h b/server/dcc-encoders.h
index c9e06e7..3c1fda1 100644
--- a/server/dcc-encoders.h
+++ b/server/dcc-encoders.h
@@ -18,6 +18,7 @@
 #ifndef DCC_ENCODERS_H_
 #define DCC_ENCODERS_H_
 
+#include <setjmp.h>
 #include "common/marshaller.h"
 #include "common/quic.h"
 #include "red_channel.h"
diff --git a/server/dcc.c b/server/dcc.c
new file mode 100644
index 0000000..5e35708
--- /dev/null
+++ b/server/dcc.c
@@ -0,0 +1,137 @@
+/* -*- 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/>.
+*/
+#include "dcc.h"
+#include "display-channel.h"
+
+DisplayChannelClient *dcc_new(DisplayChannel *display,
+                              RedClient *client, RedsStream *stream,
+                              int mig_target,
+                              uint32_t *common_caps, int num_common_caps,
+                              uint32_t *caps, int num_caps,
+                              SpiceImageCompression image_compression,
+                              spice_wan_compression_t jpeg_state,
+                              spice_wan_compression_t zlib_glz_state)
+
+{
+    DisplayChannelClient *dcc;
+
+    dcc = (DisplayChannelClient*)common_channel_new_client(
+        COMMON_CHANNEL(display), sizeof(DisplayChannelClient),
+        client, stream, mig_target, TRUE,
+        common_caps, num_common_caps,
+        caps, num_caps);
+    spice_return_val_if_fail(dcc, NULL);
+
+    ring_init(&dcc->palette_cache_lru);
+    dcc->palette_cache_available = CLIENT_PALETTE_CACHE_SIZE;
+    dcc->image_compression = image_compression;
+    dcc->jpeg_state = jpeg_state;
+    dcc->zlib_glz_state = zlib_glz_state;
+    // todo: tune quality according to bandwidth
+    dcc->jpeg_quality = 85;
+
+    dcc_encoders_init(dcc);
+
+    return dcc;
+}
+
+void dcc_stream_agent_clip(DisplayChannelClient* dcc, StreamAgent *agent)
+{
+    StreamClipItem *item = stream_clip_item_new(dcc, agent);
+    int n_rects;
+
+    item->clip_type = SPICE_CLIP_TYPE_RECTS;
+
+    n_rects = pixman_region32_n_rects(&agent->clip);
+    item->rects = spice_malloc_n_m(n_rects, sizeof(SpiceRect), sizeof(SpiceClipRects));
+    item->rects->num_rects = n_rects;
+    region_ret_rects(&agent->clip, item->rects->rects, n_rects);
+
+    red_channel_client_pipe_add(RED_CHANNEL_CLIENT(dcc), (PipeItem *)item);
+}
+
+static MonitorsConfigItem *monitors_config_item_new(RedChannel* channel,
+                                                    MonitorsConfig *monitors_config)
+{
+    MonitorsConfigItem *mci;
+
+    mci = (MonitorsConfigItem *)spice_malloc(sizeof(*mci));
+    mci->monitors_config = monitors_config;
+
+    red_channel_pipe_item_init(channel,
+                               &mci->pipe_item, PIPE_ITEM_TYPE_MONITORS_CONFIG);
+    return mci;
+}
+
+void dcc_push_monitors_config(DisplayChannelClient *dcc)
+{
+    DisplayChannel *dc = DCC_TO_DC(dcc);
+    MonitorsConfig *monitors_config = dc->monitors_config;
+    MonitorsConfigItem *mci;
+
+    if (monitors_config == NULL) {
+        spice_warning("monitors_config is NULL");
+        return;
+    }
+
+    if (!red_channel_client_test_remote_cap(&dcc->common.base,
+                                            SPICE_DISPLAY_CAP_MONITORS_CONFIG)) {
+        return;
+    }
+
+    mci = monitors_config_item_new(dcc->common.base.channel,
+                                   monitors_config_ref(dc->monitors_config));
+    red_channel_client_pipe_add(&dcc->common.base, &mci->pipe_item);
+    red_channel_client_push(&dcc->common.base);
+}
+
+static SurfaceDestroyItem *surface_destroy_item_new(RedChannel *channel,
+                                                    uint32_t surface_id)
+{
+    SurfaceDestroyItem *destroy;
+
+    destroy = spice_malloc(sizeof(SurfaceDestroyItem));
+    destroy->surface_destroy.surface_id = surface_id;
+    red_channel_pipe_item_init(channel, &destroy->pipe_item,
+                               PIPE_ITEM_TYPE_DESTROY_SURFACE);
+
+    return destroy;
+}
+
+void dcc_destroy_surface(DisplayChannelClient *dcc, uint32_t surface_id)
+{
+    DisplayChannel *display;
+    RedChannel *channel;
+    SurfaceDestroyItem *destroy;
+
+    if (!dcc) {
+        return;
+    }
+
+    display = DCC_TO_DC(dcc);
+    channel = RED_CHANNEL(display);
+
+    if (COMMON_CHANNEL(display)->during_target_migrate ||
+        !dcc->surface_client_created[surface_id]) {
+        return;
+    }
+
+    dcc->surface_client_created[surface_id] = FALSE;
+    destroy = surface_destroy_item_new(channel, surface_id);
+    red_channel_client_pipe_add(RED_CHANNEL_CLIENT(dcc), &destroy->pipe_item);
+}
diff --git a/server/dcc.h b/server/dcc.h
new file mode 100644
index 0000000..ee2e75f
--- /dev/null
+++ b/server/dcc.h
@@ -0,0 +1,134 @@
+/* -*- 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_H_
+# define DCC_H_
+
+#include "red_worker.h"
+#include "pixmap-cache.h"
+#include "cache-item.h"
+#include "dcc-encoders.h"
+#include "stream.h"
+#include "display-limits.h"
+
+#define PALETTE_CACHE_HASH_SHIFT 8
+#define PALETTE_CACHE_HASH_SIZE (1 << PALETTE_CACHE_HASH_SHIFT)
+#define PALETTE_CACHE_HASH_MASK (PALETTE_CACHE_HASH_SIZE - 1)
+#define PALETTE_CACHE_HASH_KEY(id) ((id) & PALETTE_CACHE_HASH_MASK)
+#define CLIENT_PALETTE_CACHE_SIZE 128
+
+/* Each drawable can refer to at most 3 images: src, brush and mask */
+#define MAX_DRAWABLE_PIXMAP_CACHE_ITEMS 3
+
+typedef struct WaitForChannels {
+    SpiceMsgWaitForChannels header;
+    SpiceWaitForChannel buf[MAX_CACHE_CLIENTS];
+} WaitForChannels;
+
+typedef struct FreeList {
+    int res_size;
+    SpiceResourceList *res;
+    uint64_t sync[MAX_CACHE_CLIENTS];
+    WaitForChannels wait;
+} FreeList;
+
+struct DisplayChannelClient {
+    CommonChannelClient common;
+    SpiceImageCompression image_compression;
+    spice_wan_compression_t jpeg_state;
+    spice_wan_compression_t zlib_glz_state;
+    int jpeg_quality;
+    int zlib_level;
+
+    QuicData quic_data;
+    QuicContext *quic;
+    LzData lz_data;
+    LzContext  *lz;
+    JpegData jpeg_data;
+    JpegEncoderContext *jpeg;
+#ifdef USE_LZ4
+    Lz4Data lz4_data;
+    Lz4EncoderContext *lz4;
+#endif
+    ZlibData zlib_data;
+    ZlibEncoder *zlib;
+
+    int expect_init;
+
+    PixmapCache *pixmap_cache;
+    uint32_t pixmap_cache_generation;
+    int pending_pixmaps_sync;
+
+    CacheItem *palette_cache[PALETTE_CACHE_HASH_SIZE];
+    Ring palette_cache_lru;
+    long palette_cache_available;
+    uint32_t palette_cache_items;
+
+    struct {
+        uint32_t stream_outbuf_size;
+        uint8_t *stream_outbuf; // caution stream buffer is also used as compress bufs!!!
+
+        FreeList free_list;
+        uint64_t pixmap_cache_items[MAX_DRAWABLE_PIXMAP_CACHE_ITEMS];
+        int num_pixmap_cache_items;
+    } send_data;
+
+    /* global lz encoding entities */
+    GlzSharedDictionary *glz_dict;
+    GlzEncoderContext   *glz;
+    GlzData glz_data;
+
+    Ring glz_drawables;               // all the living lz drawable, ordered by encoding time
+    Ring glz_drawables_inst_to_free;               // list of instances to be freed
+    pthread_mutex_t glz_drawables_inst_to_free_lock;
+
+    uint8_t surface_client_created[NUM_SURFACES];
+    QRegion surface_client_lossy_region[NUM_SURFACES];
+
+    StreamAgent stream_agents[NUM_STREAMS];
+    int use_mjpeg_encoder_rate_control;
+    uint32_t streams_max_latency;
+    uint64_t streams_max_bit_rate;
+};
+
+#define DCC_TO_WORKER(dcc)                                              \
+    (SPICE_CONTAINEROF((dcc)->common.base.channel, CommonChannel, base)->worker)
+#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)
+
+
+DisplayChannelClient*      dcc_new                                   (DisplayChannel *display,
+                                                                      RedClient *client,
+                                                                      RedsStream *stream,
+                                                                      int mig_target,
+                                                                      uint32_t *common_caps,
+                                                                      int num_common_caps,
+                                                                      uint32_t *caps,
+                                                                      int num_caps,
+                                                                      SpiceImageCompression image_compression,
+                                                                      spice_wan_compression_t jpeg_state,
+                                                                      spice_wan_compression_t zlib_glz_state);
+void                       dcc_push_monitors_config                  (DisplayChannelClient *dcc);
+void                       dcc_destroy_surface                       (DisplayChannelClient *dcc,
+                                                                      uint32_t surface_id);
+void                       dcc_stream_agent_clip                     (DisplayChannelClient* dcc,
+                                                                      StreamAgent *agent);
+void                       dcc_create_stream                         (DisplayChannelClient *dcc,
+                                                                      Stream *stream);
+
+#endif /* DCC_H_ */
diff --git a/server/display-channel.c b/server/display-channel.c
index d4fcc7e..9990c71 100644
--- a/server/display-channel.c
+++ b/server/display-channel.c
@@ -135,53 +135,6 @@ void display_channel_compress_stats_print(const DisplayChannel *display_channel)
 #endif
 }
 
-DisplayChannelClient *dcc_new(DisplayChannel *display,
-                              RedClient *client, RedsStream *stream,
-                              int mig_target,
-                              uint32_t *common_caps, int num_common_caps,
-                              uint32_t *caps, int num_caps,
-                              SpiceImageCompression image_compression,
-                              spice_wan_compression_t jpeg_state,
-                              spice_wan_compression_t zlib_glz_state)
-
-{
-    DisplayChannelClient *dcc;
-
-    dcc = (DisplayChannelClient*)common_channel_new_client(
-        (CommonChannel *)display, sizeof(DisplayChannelClient),
-        client, stream, mig_target, TRUE,
-        common_caps, num_common_caps,
-        caps, num_caps);
-    spice_return_val_if_fail(dcc, NULL);
-
-    ring_init(&dcc->palette_cache_lru);
-    dcc->palette_cache_available = CLIENT_PALETTE_CACHE_SIZE;
-    dcc->image_compression = image_compression;
-    dcc->jpeg_state = jpeg_state;
-    dcc->zlib_glz_state = zlib_glz_state;
-    // todo: tune quality according to bandwidth
-    dcc->jpeg_quality = 85;
-
-    dcc_encoders_init(dcc);
-
-    return dcc;
-}
-
-void dcc_add_stream_agent_clip(DisplayChannelClient* dcc, StreamAgent *agent)
-{
-    StreamClipItem *item = stream_clip_item_new(dcc, agent);
-    int n_rects;
-
-    item->clip_type = SPICE_CLIP_TYPE_RECTS;
-
-    n_rects = pixman_region32_n_rects(&agent->clip);
-    item->rects = spice_malloc_n_m(n_rects, sizeof(SpiceRect), sizeof(SpiceClipRects));
-    item->rects->num_rects = n_rects;
-    region_ret_rects(&agent->clip, item->rects->rects, n_rects);
-
-    red_channel_client_pipe_add(RED_CHANNEL_CLIENT(dcc), (PipeItem *)item);
-}
-
 MonitorsConfig* monitors_config_ref(MonitorsConfig *monitors_config)
 {
     monitors_config->refs++;
@@ -227,82 +180,6 @@ MonitorsConfig* monitors_config_new(QXLHead *heads, ssize_t nheads, ssize_t max)
     return mc;
 }
 
-static MonitorsConfigItem *monitors_config_item_new(RedChannel* channel,
-                                                    MonitorsConfig *monitors_config)
-{
-    MonitorsConfigItem *mci;
-
-    mci = (MonitorsConfigItem *)spice_malloc(sizeof(*mci));
-    mci->monitors_config = monitors_config;
-
-    red_channel_pipe_item_init(channel,
-                               &mci->pipe_item, PIPE_ITEM_TYPE_MONITORS_CONFIG);
-    return mci;
-}
-
-static void red_monitors_config_item_add(DisplayChannelClient *dcc)
-{
-    DisplayChannel *dc = DCC_TO_DC(dcc);
-    MonitorsConfigItem *mci;
-
-    mci = monitors_config_item_new(dcc->common.base.channel,
-                                   monitors_config_ref(dc->monitors_config));
-    red_channel_client_pipe_add(&dcc->common.base, &mci->pipe_item);
-}
-
-void dcc_push_monitors_config(DisplayChannelClient *dcc)
-{
-    MonitorsConfig *monitors_config = DCC_TO_DC(dcc)->monitors_config;
-
-    if (monitors_config == NULL) {
-        spice_warning("monitors_config is NULL");
-        return;
-    }
-
-    if (!red_channel_client_test_remote_cap(&dcc->common.base,
-                                            SPICE_DISPLAY_CAP_MONITORS_CONFIG)) {
-        return;
-    }
-    red_monitors_config_item_add(dcc);
-    red_channel_client_push(&dcc->common.base);
-}
-
-static SurfaceDestroyItem *surface_destroy_item_new(RedChannel *channel,
-                                                    uint32_t surface_id)
-{
-    SurfaceDestroyItem *destroy;
-
-    destroy = spice_malloc(sizeof(SurfaceDestroyItem));
-    destroy->surface_destroy.surface_id = surface_id;
-    red_channel_pipe_item_init(channel, &destroy->pipe_item,
-                               PIPE_ITEM_TYPE_DESTROY_SURFACE);
-
-    return destroy;
-}
-
-void dcc_push_destroy_surface(DisplayChannelClient *dcc, uint32_t surface_id)
-{
-    DisplayChannel *display;
-    RedChannel *channel;
-    SurfaceDestroyItem *destroy;
-
-    if (!dcc) {
-        return;
-    }
-
-    display = DCC_TO_DC(dcc);
-    channel = RED_CHANNEL(display);
-
-    if (COMMON_CHANNEL(display)->during_target_migrate ||
-        !dcc->surface_client_created[surface_id]) {
-        return;
-    }
-
-    dcc->surface_client_created[surface_id] = FALSE;
-    destroy = surface_destroy_item_new(channel, surface_id);
-    red_channel_client_pipe_add(RED_CHANNEL_CLIENT(dcc), &destroy->pipe_item);
-}
-
 int display_channel_get_streams_timeout(DisplayChannel *display)
 {
     int timeout = INT_MAX;
@@ -395,7 +272,7 @@ void display_channel_surface_unref(DisplayChannel *display, uint32_t surface_id)
     region_destroy(&surface->draw_dirty_region);
     surface->context.canvas = NULL;
     FOREACH_DCC(display, link, next, dcc) {
-        dcc_push_destroy_surface(dcc, surface_id);
+        dcc_destroy_surface(dcc, surface_id);
     }
 
     spice_warn_if(!ring_is_empty(&surface->depend_on_me));
@@ -442,7 +319,7 @@ static void streams_update_visible_region(DisplayChannel *display, Drawable *dra
             if (region_intersects(&agent->vis_region, &drawable->tree_item.base.rgn)) {
                 region_exclude(&agent->vis_region, &drawable->tree_item.base.rgn);
                 region_exclude(&agent->clip, &drawable->tree_item.base.rgn);
-                dcc_add_stream_agent_clip(dcc, agent);
+                dcc_stream_agent_clip(dcc, agent);
             }
         }
     }
diff --git a/server/display-channel.h b/server/display-channel.h
index 90f8455..aba7dce 100644
--- a/server/display-channel.h
+++ b/server/display-channel.h
@@ -49,32 +49,9 @@
 #include "utils.h"
 #include "tree.h"
 #include "stream.h"
-#include "dcc-encoders.h"
+#include "dcc.h"
+#include "display-limits.h"
 
-#define PALETTE_CACHE_HASH_SHIFT 8
-#define PALETTE_CACHE_HASH_SIZE (1 << PALETTE_CACHE_HASH_SHIFT)
-#define PALETTE_CACHE_HASH_MASK (PALETTE_CACHE_HASH_SIZE - 1)
-#define PALETTE_CACHE_HASH_KEY(id) ((id) & PALETTE_CACHE_HASH_MASK)
-
-#define CLIENT_PALETTE_CACHE_SIZE 128
-
-/* Each drawable can refer to at most 3 images: src, brush and mask */
-#define MAX_DRAWABLE_PIXMAP_CACHE_ITEMS 3
-
-#define NUM_STREAMS 50
-#define NUM_SURFACES 10000
-
-typedef struct WaitForChannels {
-    SpiceMsgWaitForChannels header;
-    SpiceWaitForChannel buf[MAX_CACHE_CLIENTS];
-} WaitForChannels;
-
-typedef struct FreeList {
-    int res_size;
-    SpiceResourceList *res;
-    uint64_t sync[MAX_CACHE_CLIENTS];
-    WaitForChannels wait;
-} FreeList;
 
 typedef struct DependItem {
     Drawable *drawable;
@@ -115,72 +92,6 @@ struct Drawable {
     SAFE_FOREACH(link, next, drawable,  &(drawable)->pipes, dpi, LINK_TO_DPI(link))
 
 
-struct DisplayChannelClient {
-    CommonChannelClient common;
-    SpiceImageCompression image_compression;
-    spice_wan_compression_t jpeg_state;
-    spice_wan_compression_t zlib_glz_state;
-    int jpeg_quality;
-    int zlib_level;
-
-    QuicData quic_data;
-    QuicContext *quic;
-    LzData lz_data;
-    LzContext  *lz;
-    JpegData jpeg_data;
-    JpegEncoderContext *jpeg;
-#ifdef USE_LZ4
-    Lz4Data lz4_data;
-    Lz4EncoderContext *lz4;
-#endif
-    ZlibData zlib_data;
-    ZlibEncoder *zlib;
-
-    int expect_init;
-
-    PixmapCache *pixmap_cache;
-    uint32_t pixmap_cache_generation;
-    int pending_pixmaps_sync;
-
-    CacheItem *palette_cache[PALETTE_CACHE_HASH_SIZE];
-    Ring palette_cache_lru;
-    long palette_cache_available;
-    uint32_t palette_cache_items;
-
-    struct {
-        uint32_t stream_outbuf_size;
-        uint8_t *stream_outbuf; // caution stream buffer is also used as compress bufs!!!
-
-        FreeList free_list;
-        uint64_t pixmap_cache_items[MAX_DRAWABLE_PIXMAP_CACHE_ITEMS];
-        int num_pixmap_cache_items;
-    } send_data;
-
-    /* global lz encoding entities */
-    GlzSharedDictionary *glz_dict;
-    GlzEncoderContext   *glz;
-    GlzData glz_data;
-
-    Ring glz_drawables;               // all the living lz drawable, ordered by encoding time
-    Ring glz_drawables_inst_to_free;               // list of instances to be freed
-    pthread_mutex_t glz_drawables_inst_to_free_lock;
-
-    uint8_t surface_client_created[NUM_SURFACES];
-    QRegion surface_client_lossy_region[NUM_SURFACES];
-
-    StreamAgent stream_agents[NUM_STREAMS];
-    int use_mjpeg_encoder_rate_control;
-    uint32_t streams_max_latency;
-    uint64_t streams_max_bit_rate;
-};
-
-#define DCC_TO_WORKER(dcc)                                              \
-    (SPICE_CONTAINEROF((dcc)->common.base.channel, CommonChannel, base)->worker)
-#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)
-
-
 enum {
     PIPE_ITEM_TYPE_DRAW = PIPE_ITEM_TYPE_COMMON_LAST,
     PIPE_ITEM_TYPE_IMAGE,
@@ -198,25 +109,6 @@ enum {
     PIPE_ITEM_TYPE_STREAM_ACTIVATE_REPORT,
 };
 
-DisplayChannelClient*      dcc_new                                   (DisplayChannel *display,
-                                                                      RedClient *client,
-                                                                      RedsStream *stream,
-                                                                      int mig_target,
-                                                                      uint32_t *common_caps,
-                                                                      int num_common_caps,
-                                                                      uint32_t *caps,
-                                                                      int num_caps,
-                                                                      SpiceImageCompression image_compression,
-                                                                      spice_wan_compression_t jpeg_state,
-                                                                      spice_wan_compression_t zlib_glz_state);
-void                       dcc_push_monitors_config                  (DisplayChannelClient *dcc);
-void                       dcc_push_destroy_surface                  (DisplayChannelClient *dcc,
-                                                                      uint32_t surface_id);
-void                       dcc_add_stream_agent_clip                 (DisplayChannelClient* dcc,
-                                                                      StreamAgent *agent);
-void                       dcc_create_stream                         (DisplayChannelClient *dcc,
-                                                                      Stream *stream);
-
 typedef struct DrawablePipeItem {
     RingItem base;  /* link for a list of pipe items held by Drawable */
     PipeItem dpi_pipe_item; /* link for the client's pipe itself */
diff --git a/server/display-limits.h b/server/display-limits.h
new file mode 100644
index 0000000..8d2b41d
--- /dev/null
+++ b/server/display-limits.h
@@ -0,0 +1,27 @@
+/* -*- 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 DISPLAY_LIMITS_H_
+#define DISPLAY_LIMITS_H_
+
+/*** Maximum number of surfaces a guest can create */
+#define NUM_SURFACES 10000
+
+/*** Maximum number of streams created by spice-server */
+#define NUM_STREAMS 50
+
+#endif /* DISPLAY_LIMITS_H_ */
diff --git a/server/red_worker.c b/server/red_worker.c
index 5609b47..07dcf1c 100644
--- a/server/red_worker.c
+++ b/server/red_worker.c
@@ -274,7 +274,7 @@ void attach_stream(DisplayChannel *display, Drawable *drawable, Stream *stream)
         if (!region_is_equal(&clip_in_draw_dest, &drawable->tree_item.base.rgn)) {
             region_remove(&agent->clip, &drawable->red_drawable->bbox);
             region_or(&agent->clip, &drawable->tree_item.base.rgn);
-            dcc_add_stream_agent_clip(dcc, agent);
+            dcc_stream_agent_clip(dcc, agent);
         }
 #ifdef STREAM_STATS
         agent->stats.num_input_frames++;
@@ -933,7 +933,7 @@ static void dcc_detach_stream_gracefully(DisplayChannelClient *dcc,
 
     /* stopping the client from playing older frames at once*/
     region_clear(&agent->clip);
-    dcc_add_stream_agent_clip(dcc, agent);
+    dcc_stream_agent_clip(dcc, agent);
 
     if (region_is_empty(&agent->vis_region)) {
         spice_debug("stream %d: vis region empty", stream_id);
-- 
2.4.3
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