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char-device: Allows to handle port events from any char device

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From spice_server_port_event API you can send port events to
any char device. Although currently this is used only for "port"
devices implemented in spicevmc.c this will allow to support
such events using different objects.

This will be used for instance for a streaming device which
will be a specific SpicePort implementation.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Jonathon Jongsma <jjongsma@redhat.com>
This commit is contained in:
Frediano Ziglio 2017-05-16 08:48:04 +01:00
parent 7498675c1d
commit 930a1196e3
3 changed files with 29 additions and 7 deletions
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23
server/char-device.c
View File

@ -1109,6 +1109,11 @@ red_char_device_finalize(GObject *object)
G_OBJECT_CLASS(red_char_device_parent_class)->finalize(object);
}
static void
port_event_none(RedCharDevice *self G_GNUC_UNUSED, uint8_t event G_GNUC_UNUSED)
{
}
static void
red_char_device_class_init(RedCharDeviceClass *klass)
{
@ -1152,6 +1157,24 @@ red_char_device_class_init(RedCharDeviceClass *klass)
0, G_MAXUINT64, 0,
G_PARAM_STATIC_STRINGS |
G_PARAM_READWRITE));
klass->port_event = port_event_none;
}
SPICE_GNUC_VISIBLE void spice_server_port_event(SpiceCharDeviceInstance *sin, uint8_t event)
{
if (sin->st == NULL) {
spice_warning("no SpiceCharDeviceState attached to instance %p", sin);
return;
}
RedCharDeviceClass *klass = RED_CHAR_DEVICE_GET_CLASS(sin->st);
if (!klass) {
// wrong object, a warning is already produced by RED_CHAR_DEVICE_GET_CLASS
return;
}
return klass->port_event(sin->st, event);
}
static void

3
server/char-device.h
View File

@ -78,6 +78,9 @@ struct RedCharDeviceClass
* due to slow flow or due to some other error.
* The called instance should disconnect the client, or at least the corresponding channel */
void (*remove_client)(RedCharDevice *self, RedClient *client);
/* This cb is called when device receives an event */
void (*port_event)(RedCharDevice *self, uint8_t event);
};
GType red_char_device_get_type(void) G_GNUC_CONST;

10
server/spicevmc.c
View File

@ -866,15 +866,10 @@ void spicevmc_device_disconnect(RedsState *reds, SpiceCharDeviceInstance *sin)
sin->st = NULL;
}
SPICE_GNUC_VISIBLE void spice_server_port_event(SpiceCharDeviceInstance *sin, uint8_t event)
static void spicevmc_port_event(RedCharDevice *char_dev, uint8_t event)
{
RedVmcChannel *channel;
RedCharDeviceSpiceVmc *device = RED_CHAR_DEVICE_SPICEVMC(sin->st);
if (sin->st == NULL) {
spice_warning("no SpiceCharDeviceState attached to instance %p", sin);
return;
}
RedCharDeviceSpiceVmc *device = RED_CHAR_DEVICE_SPICEVMC(char_dev);
channel = RED_VMC_CHANNEL(device->channel);
@ -953,6 +948,7 @@ red_char_device_spicevmc_class_init(RedCharDeviceSpiceVmcClass *klass)
char_dev_class->send_msg_to_client = spicevmc_chardev_send_msg_to_client;
char_dev_class->send_tokens_to_client = spicevmc_char_dev_send_tokens_to_client;
char_dev_class->remove_client = spicevmc_char_dev_remove_client;
char_dev_class->port_event = spicevmc_port_event;
g_object_class_install_property(object_class,
PROP_CHANNEL,