[PATCH 4/7] add red_dispatcher_destroy function

[Frediano Ziglio <fziglio@xxxxxxxxxx>]

Allows to destroy a RedDispatcher object

Signed-off-by: Frediano Ziglio <fziglio@xxxxxxxxxx>
---
 server/red_dispatcher.c | 54 +++++++++++++++++++++++++++++++++++++++++++++++++
 server/red_dispatcher.h |  1 +
 2 files changed, 55 insertions(+)

diff --git a/server/red_dispatcher.c b/server/red_dispatcher.c
index 660dad8..16e4cc3 100644
--- a/server/red_dispatcher.c
+++ b/server/red_dispatcher.c
@@ -67,6 +67,8 @@ struct RedDispatcher {
     pthread_mutex_t  async_lock;
     QXLDevSurfaceCreate surface_create;
     unsigned int max_monitors;
+    RedChannel *display_channel;
+    RedChannel *cursor_channel;
 };
 
 extern uint32_t streaming_video;
@@ -1157,6 +1159,7 @@ void red_dispatcher_init(QXLInstance *qxl)
         red_channel_set_cap(display_channel, SPICE_DISPLAY_CAP_PREF_COMPRESSION);
         red_channel_set_cap(display_channel, SPICE_DISPLAY_CAP_STREAM_REPORT);
         reds_register_channel(display_channel);
+        red_dispatcher->display_channel = display_channel;
     }
 
     cursor_channel = red_dispatcher_cursor_channel_create(red_dispatcher);
@@ -1168,6 +1171,7 @@ void red_dispatcher_init(QXLInstance *qxl)
         red_channel_register_client_cbs(cursor_channel, &client_cbs);
         red_channel_set_data(cursor_channel, red_dispatcher);
         reds_register_channel(cursor_channel);
+        red_dispatcher->cursor_channel = cursor_channel;
     }
 
     qxl->st->dispatcher = red_dispatcher;
@@ -1178,6 +1182,56 @@ void red_dispatcher_init(QXLInstance *qxl)
     qxl->st->qif->set_compression_level(qxl, calc_compression_level());
 }
 
+void red_dispatcher_destroy(QXLInstance *qxl)
+{
+    RedDispatcher *red_dispatcher;
+    RedWorkerMessageClose message;
+    RingItem *item, *next;
+
+    spice_return_if_fail(qxl->st != NULL && qxl->st->dispatcher != NULL);
+
+    // TODO implement it
+    // qxl->st->qif->detach_worker(qxl, &red_dispatcher->base);
+
+    red_dispatcher = qxl->st->dispatcher;
+
+    RedDispatcher **curr = &dispatchers;
+    while (*curr) {
+        if (*curr == red_dispatcher) {
+            *curr = red_dispatcher->next;
+            break;
+        }
+        curr = &(*curr)->next;
+    }
+
+    /* deregister channels (display and cursor) */
+    if (red_dispatcher->cursor_channel)
+        reds_unregister_channel(red_dispatcher->cursor_channel);
+    if (red_dispatcher->display_channel)
+        reds_unregister_channel(red_dispatcher->display_channel);
+
+    /* send message to close thread */
+    dispatcher_send_message(&red_dispatcher->dispatcher,
+                            RED_WORKER_MESSAGE_CLOSE_WORKER,
+                            &message);
+    pthread_join(red_dispatcher->worker_thread, NULL);
+
+    dispatcher_destroy(&red_dispatcher->dispatcher);
+
+    /* destroy Ring async_commands */
+    RING_FOREACH_SAFE(item, next, &red_dispatcher->async_commands) {
+        free(item);
+    }
+
+    pthread_mutex_destroy(&red_dispatcher->async_lock);
+
+    qxl->st->dispatcher = NULL;
+    free(red_dispatcher);
+
+    num_active_workers = 0;
+}
+
+
 struct Dispatcher *red_dispatcher_get_dispatcher(RedDispatcher *red_dispatcher)
 {
     return &red_dispatcher->dispatcher;
diff --git a/server/red_dispatcher.h b/server/red_dispatcher.h
index 3461ba4..a50ae15 100644
--- a/server/red_dispatcher.h
+++ b/server/red_dispatcher.h
@@ -25,6 +25,7 @@ struct RedDispatcher;
 typedef struct AsyncCommand AsyncCommand;
 
 void red_dispatcher_init(QXLInstance *qxl);
+void red_dispatcher_destroy(QXLInstance *qxl);
 
 void red_dispatcher_set_mm_time(uint32_t);
 void red_dispatcher_on_ic_change(void);
-- 
2.4.3

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