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virtual-device: Make cancellation support toggable

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We may want to have the device to sleep while releasing an operation,
this will allow to do it.
This commit is contained in:
Marco Trevisan (Treviño)
2021-01-25 17:10:00 +01:00
parent 993109a7f8
commit 3693c39bc5
3 changed files with 53 additions and 1 deletions
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1
libfprint/drivers/virtual-device-private.h
View File

@@ -80,6 +80,7 @@ struct _FpDeviceVirtualDevice
guint wait_command_id;
guint sleep_timeout_id;
guint enroll_stages_passed;
gboolean supports_cancellation;
};
/* Not really final here, but we can do this to share the FpDeviceVirtualDevice

13
libfprint/drivers/virtual-device.c
View File

@@ -43,6 +43,7 @@ G_DEFINE_TYPE (FpDeviceVirtualDevice, fpi_device_virtual_device, FP_TYPE_DEVICE)
#define SLEEP_CMD_PREFIX "SLEEP "
#define SET_ENROLL_STAGES_PREFIX "SET_ENROLL_STAGES "
#define SET_SCAN_TYPE_PREFIX "SET_SCAN_TYPE "
#define SET_CANCELLATION_PREFIX "SET_CANCELLATION_ENABLED "
#define LIST_CMD "LIST"
#define UNPLUG_CMD "UNPLUG"
@@ -257,6 +258,14 @@ recv_instruction_cb (GObject *source_object,
else
g_warning ("Scan type '%s' not found", scan_type);
}
else if (g_str_has_prefix (cmd, SET_CANCELLATION_PREFIX))
{
self->supports_cancellation = g_ascii_strtoull (
cmd + strlen (SET_CANCELLATION_PREFIX), NULL, 10) != 0;
g_debug ("Cancellation support toggled: %d",
self->supports_cancellation);
}
else
{
g_ptr_array_add (self->pending_commands, g_steal_pointer (&cmd));
@@ -471,6 +480,9 @@ dev_cancel (FpDevice *dev)
{
FpDeviceVirtualDevice *self = FP_DEVICE_VIRTUAL_DEVICE (dev);
if (!self->supports_cancellation)
return;
g_debug ("Got cancellation!");
g_clear_handle_id (&self->sleep_timeout_id, g_source_remove);
@@ -505,6 +517,7 @@ fpi_device_virtual_device_finalize (GObject *object)
static void
fpi_device_virtual_device_init (FpDeviceVirtualDevice *self)
{
self->supports_cancellation = TRUE;
self->pending_commands = g_ptr_array_new_with_free_func (g_free);
}