Re: [PATCH v3 05/13] UsbDeviceManager and redirect channel: spawn a different thread for connect device flow

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




On Aug 11, 2015, at 15:14 PM, Christophe Fergeau <cfergeau@xxxxxxxxxx> wrote:

On Mon, Aug 03, 2015 at 04:10:45PM +0300, Kirill Moizik wrote:
From: Kirill Moizik <kmoizik@xxxxxxxxxx>

---
src/channel-usbredir.c   | 46 +++++++++++++++++++++++---------
src/usb-device-manager.c | 69 +++++++++++++++++++++++++++++++++++++++---------
2 files changed, 90 insertions(+), 25 deletions(-)

diff --git a/src/channel-usbredir.c b/src/channel-usbredir.c
index 69cb565..7394b81 100644
--- a/src/channel-usbredir.c
+++ b/src/channel-usbredir.c
@@ -315,6 +315,27 @@ static void spice_usbredir_channel_open_acl_cb(
}
#endif

+#ifndef USE_POLKIT
+static void
+spice_usbredir_channel_open_device_async(GSimpleAsyncResult *simple,
+                                         GObject *object,
+                                         GCancellable *cancellable)

This should be named _open_device_async_cb()


Fixed.


+{
+    GError *err = NULL;
+    SpiceUsbredirChannel *channel= (SpiceUsbredirChannel *)object;

SPICE_USBREDIR_CHANNEL(object) would be better than the direct cast.


Sure. Fixed.


+    SpiceUsbredirChannelPrivate *priv = channel->priv;
+    g_mutex_lock(priv->flows_mutex);
+    if (!spice_usbredir_channel_open_device(channel, &err)) {
+        g_simple_async_result_take_error(simple, err);
+        libusb_unref_device(priv->device);
+        priv->device = NULL;
+        g_boxed_free(spice_usb_device_get_type(), priv->spice_device);
+        priv->spice_device = NULL;
+     }
+    g_mutex_unlock(priv->flows_mutex);
+}
+#endif
+
G_GNUC_INTERNAL
void spice_usbredir_channel_connect_device_async(
                                          SpiceUsbredirChannel *channel,
@@ -324,15 +345,16 @@ void spice_usbredir_channel_connect_device_async(
                                          GAsyncReadyCallback   callback,
                                          gpointer              user_data)
{
-    SpiceUsbredirChannelPrivate *priv = channel->priv;
-    GSimpleAsyncResult *result;
-#if ! USE_POLKIT
-    GError *err = NULL;
-#endif

    g_return_if_fail(SPICE_IS_USBREDIR_CHANNEL(channel));
    g_return_if_fail(device != NULL);

+    SpiceUsbredirChannelPrivate *priv = channel->priv;
+    GSimpleAsyncResult *result;
+#ifndef USE_POLKIT
+    g_object_ref(channel);
+#endif

I don't think you need this _ref() here,
g_simple_async_result_new(channel, ...) will take a reference for you
for as long as the GSimpleAsyncResult object is alive.


You are right, removed here and in a similar code on disconnection.



+
    CHANNEL_DEBUG(channel, "connecting usb channel %p", channel);

    result = g_simple_async_result_new(G_OBJECT(channel), callback, user_data,
@@ -369,18 +391,18 @@ void spice_usbredir_channel_connect_device_async(
                                  channel);
    return;
#else
-    if (!spice_usbredir_channel_open_device(channel, &err)) {
-        g_simple_async_result_take_error(result, err);
-        libusb_unref_device(priv->device);
-        priv->device = NULL;
-        g_boxed_free(spice_usb_device_get_type(), priv->spice_device);
-        priv->spice_device = NULL;
-    }
+    g_simple_async_result_run_in_thread(result,
+                                        spice_usbredir_channel_open_device_async,
+                                        G_PRIORITY_DEFAULT,
+                                        cancellable);
+    g_object_unref(result);
+    return;
#endif

done:
    g_simple_async_result_complete_in_idle(result);
    g_object_unref(result);
+    g_object_unref(channel);
}

G_GNUC_INTERNAL

All the changes below in usb-device-manager.c seems to be more or less
unrelated to the changes above, and aimed at setting 'redirecting' to
TRUE/FALSE when redirection starts/ends, I suspect it would be clearer
to do this in a separate commit.


Agree, moving to a separate commit.


diff --git a/src/usb-device-manager.c b/src/usb-device-manager.c
index e58450d..65c6568 100644
--- a/src/usb-device-manager.c
+++ b/src/usb-device-manager.c
@@ -207,6 +207,11 @@ _spice_usb_device_manager_connect_device_async(SpiceUsbDeviceManager *self,
                                               GAsyncReadyCallback callback,
                                               gpointer user_data);

+static
+void spice_usb_device_manager_connect_device_async_cb(GObject *gobject,
+                                                      GAsyncResult *channel_res,
+                                                      gpointer user_data);
+
G_DEFINE_BOXED_TYPE(SpiceUsbDevice, spice_usb_device,
                    (GBoxedCopyFunc)spice_usb_device_ref,
                    (GBoxedFreeFunc)spice_usb_device_unref)
@@ -1128,8 +1133,16 @@ static void spice_usb_device_manager_channel_connect_cb(
    }
    g_simple_async_result_complete(result);
    g_object_unref(result);
+    g_object_unref(channel);
}

+typedef struct _connect_cb_data
+{
+    SpiceUsbDeviceManager  *self;
+    GAsyncReadyCallback     callback;
+    gpointer                user_data;
+} connect_cb_data;
+
#ifdef G_OS_WIN32

typedef struct _UsbInstallCbInfo {
[snip]
@@ -1603,9 +1625,10 @@ void spice_usb_device_manager_connect_device_async(SpiceUsbDeviceManager *self,
        _spice_usb_device_manager_connect_device_async(self,
                                                       device,
                                                       cancellable,
-                                                       callback,
-                                                       user_data);
+                                                       spice_usb_device_manager_connect_device_async_cb,
+                                                       data);
    }
+#endif
}

gboolean spice_usb_device_manager_connect_device_finish(
@@ -1623,6 +1646,26 @@ gboolean spice_usb_device_manager_connect_device_finish(
    return TRUE;
}

+#ifdef USE_USBREDIR
+static
+void spice_usb_device_manager_connect_device_async_cb(GObject *gobject,
+                                                      GAsyncResult *channel_res,
+                                                      gpointer user_data)
+{
+    connect_cb_data    *data    = user_data;
+    GSimpleAsyncResult *result  = g_simple_async_result_new(G_OBJECT(data->self), data->callback,
+                                  data->user_data,
+                                  spice_usb_device_manager_disconnect_device_async);
+    g_object_set(data->self,"redirecting", FALSE, NULL);
+#ifndef USE_LIBUSB_HOTPLUG
+    spice_g_udev_set_redirecting(FALSE);
+#endif
+    g_simple_async_result_complete(result);
+    g_object_unref(result);
+    g_free(data);
+}
+#endif
+

Can't this be done in spice_usb_device_manager_channel_connect_cb()
rather than introducing an extra async_cb step?

That would be better, but unfortunately spice_usb_device_manager_channel_connect_cb
doesn’t have access to device manager/udev objects and we’d like to preserve that type of encapsulation.


Christophe

_______________________________________________
Spice-devel mailing list
Spice-devel@xxxxxxxxxxxxxxxxxxxxx
http://lists.freedesktop.org/mailman/listinfo/spice-devel

[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Security]     [Bugtraq]     [Linux]     [Linux OMAP]     [Linux MIPS]     [ECOS]     [Asterisk Internet PBX]     [Linux API]     [Monitors]