[Spice-devel] [PATCH v2 1/3] tests: do not use default loop context

Frediano Ziglio fziglio at redhat.com
Thu Dec 17 05:22:18 PST 2015


Make sure we don't handle event reserved to other loop contexts.

Signed-off-by: Frediano Ziglio <fziglio at redhat.com>
---
 server/tests/basic_event_loop.c | 76 +++++++++++++++++++++++++++--------------
 server/tests/basic_event_loop.h |  2 ++
 server/tests/replay.c           | 18 ++++++----
 3 files changed, 64 insertions(+), 32 deletions(-)

diff --git a/server/tests/basic_event_loop.c b/server/tests/basic_event_loop.c
index c9c2637..450c998 100644
--- a/server/tests/basic_event_loop.c
+++ b/server/tests/basic_event_loop.c
@@ -21,7 +21,6 @@
 #include <sys/time.h>
 #include <signal.h>
 #include <string.h>
-#include <glib.h>
 
 #include "spice/macros.h"
 #include "common/ring.h"
@@ -39,11 +38,17 @@ int debug = 0;
 
 #define NOT_IMPLEMENTED printf("%s not implemented\n", __func__);
 
+static GMainContext *main_context = NULL;
+
+GMainContext *basic_event_loop_get_context(void)
+{
+    return main_context;
+}
 
 struct SpiceTimer {
     SpiceTimerFunc func;
     void *opaque;
-    guint source_id;
+    GSource *source;
 };
 
 static SpiceTimer* timer_add(SpiceTimerFunc func, void *opaque)
@@ -60,7 +65,6 @@ static gboolean timer_func(gpointer user_data)
 {
     SpiceTimer *timer = user_data;
 
-    timer->source_id = 0;
     timer->func(timer->opaque);
     /* timer might be free after func(), don't touch */
 
@@ -69,34 +73,40 @@ static gboolean timer_func(gpointer user_data)
 
 static void timer_cancel(SpiceTimer *timer)
 {
-    if (timer->source_id == 0)
-        return;
-
-    g_source_remove(timer->source_id);
-    timer->source_id = 0;
+    if (timer->source) {
+        g_source_destroy(timer->source);
+        g_source_unref(timer->source);
+        timer->source = NULL;
+    }
 }
 
 static void timer_start(SpiceTimer *timer, uint32_t ms)
 {
     timer_cancel(timer);
 
-    timer->source_id = g_timeout_add(ms, timer_func, timer);
+    timer->source = g_timeout_source_new(ms);
+    spice_assert(timer->source != NULL);
+
+    g_source_set_callback(timer->source, timer_func, timer, NULL);
+
+    g_source_attach(timer->source, main_context);
 }
 
 static void timer_remove(SpiceTimer *timer)
 {
     timer_cancel(timer);
+    spice_assert(timer->source == NULL);
     free(timer);
 }
 
 struct SpiceWatch {
     void *opaque;
-    guint source_id;
+    GSource *source;
     GIOChannel *channel;
     SpiceWatchFunc func;
 };
 
-static GIOCondition spice_event_to_condition(int event_mask)
+static GIOCondition spice_event_to_giocondition(int event_mask)
 {
     GIOCondition condition = 0;
 
@@ -108,7 +118,7 @@ static GIOCondition spice_event_to_condition(int event_mask)
     return condition;
 }
 
-static int condition_to_spice_event(GIOCondition condition)
+static int giocondition_to_spice_event(GIOCondition condition)
 {
     int event = 0;
 
@@ -126,37 +136,49 @@ static gboolean watch_func(GIOChannel *source, GIOCondition condition,
     SpiceWatch *watch = data;
     int fd = g_io_channel_unix_get_fd(source);
 
-    watch->func(fd, condition_to_spice_event(condition), watch->opaque);
+    watch->func(fd, giocondition_to_spice_event(condition), watch->opaque);
 
     return TRUE;
 }
 
+static void watch_update_mask(SpiceWatch *watch, int event_mask)
+{
+    if (watch->source) {
+        g_source_destroy(watch->source);
+        g_source_unref(watch->source);
+        watch->source = NULL;
+    }
+
+    if (!event_mask)
+        return;
+
+    watch->source = g_io_create_watch(watch->channel, spice_event_to_giocondition(event_mask));
+    g_source_set_callback(watch->source, (GSourceFunc)watch_func, watch, NULL);
+    g_source_attach(watch->source, main_context);
+}
+
 static SpiceWatch *watch_add(int fd, int event_mask, SpiceWatchFunc func, void *opaque)
 {
     SpiceWatch *watch;
-    GIOCondition condition = spice_event_to_condition(event_mask);
+
+    spice_return_val_if_fail(fd != -1, NULL);
+    spice_return_val_if_fail(func != NULL, NULL);
 
     watch = spice_malloc0(sizeof(SpiceWatch));
     watch->channel = g_io_channel_unix_new(fd);
-    watch->source_id = g_io_add_watch(watch->channel, condition, watch_func, watch);
     watch->func = func;
     watch->opaque = opaque;
 
-    return watch;
-}
+    watch_update_mask(watch, event_mask);
 
-static void watch_update_mask(SpiceWatch *watch, int event_mask)
-{
-    GIOCondition condition = spice_event_to_condition(event_mask);
-
-    g_source_remove(watch->source_id);
-    if (condition != 0)
-        watch->source_id = g_io_add_watch(watch->channel, condition, watch_func, watch);
+    return watch;
 }
 
 static void watch_remove(SpiceWatch *watch)
 {
-    g_source_remove(watch->source_id);
+    watch_update_mask(watch, 0);
+    spice_assert(watch->source == NULL);
+
     g_io_channel_unref(watch->channel);
     free(watch);
 }
@@ -169,7 +191,7 @@ static void channel_event(int event, SpiceChannelEventInfo *info)
 
 void basic_event_loop_mainloop(void)
 {
-    GMainLoop *loop = g_main_loop_new(NULL, FALSE);
+    GMainLoop *loop = g_main_loop_new(main_context, FALSE);
 
     g_main_loop_run(loop);
     g_main_loop_unref(loop);
@@ -203,5 +225,7 @@ static SpiceCoreInterface core = {
 SpiceCoreInterface *basic_event_loop_init(void)
 {
     ignore_sigpipe();
+    spice_assert(main_context == NULL);
+    main_context = g_main_context_new();
     return &core;
 }
diff --git a/server/tests/basic_event_loop.h b/server/tests/basic_event_loop.h
index 8220893e..2ec9446 100644
--- a/server/tests/basic_event_loop.h
+++ b/server/tests/basic_event_loop.h
@@ -19,7 +19,9 @@
 #define __BASIC_EVENT_LOOP_H__
 
 #include <spice.h>
+#include <glib.h>
 
+GMainContext *basic_event_loop_get_context(void);
 SpiceCoreInterface *basic_event_loop_init(void);
 void basic_event_loop_mainloop(void);
 
diff --git a/server/tests/replay.c b/server/tests/replay.c
index ef6c7fb..a652efd 100644
--- a/server/tests/replay.c
+++ b/server/tests/replay.c
@@ -53,7 +53,7 @@ static GAsyncQueue *aqueue = NULL;
 static long total_size;
 
 static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
-static guint fill_source_id = 0;
+static GSource *fill_source = NULL;
 
 
 #define MEM_SLOT_GROUP_ID 0
@@ -125,7 +125,11 @@ static gboolean fill_queue_idle(gpointer user_data)
 end:
     if (!keep) {
         pthread_mutex_lock(&mutex);
-        fill_source_id = 0;
+        if (fill_source) {
+            g_source_destroy(fill_source);
+            g_source_unref(fill_source);
+            fill_source = NULL;
+        }
         pthread_mutex_unlock(&mutex);
     }
     spice_qxl_wakeup(&display_sin);
@@ -140,10 +144,12 @@ static void fill_queue(void)
     if (!started)
         goto end;
 
-    if (fill_source_id != 0)
+    if (fill_source)
         goto end;
 
-    fill_source_id = g_idle_add(fill_queue_idle, NULL);
+    fill_source = g_idle_source_new();
+    g_source_set_callback(fill_source, fill_queue_idle, NULL, NULL);
+    g_source_attach(fill_source, basic_event_loop_get_context());
 
 end:
     pthread_mutex_unlock(&mutex);
@@ -178,7 +184,7 @@ static int req_cmd_notification(QXLInstance *qin)
         return TRUE;
 
     g_printerr("id: %d, queue length: %d",
-                   fill_source_id, g_async_queue_length(aqueue));
+                   g_source_get_id(fill_source), g_async_queue_length(aqueue));
 
     return TRUE;
 }
@@ -352,7 +358,7 @@ int main(int argc, char **argv)
         fill_queue();
     }
 
-    loop = g_main_loop_new(NULL, FALSE);
+    loop = g_main_loop_new(basic_event_loop_get_context(), FALSE);
     g_main_loop_run(loop);
 
     end_replay();
-- 
2.4.3



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