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device: Make verification support optional

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We always assumed a device can verify, but nothing prevents from having
a device that only can identify or capture.

So, given that we've more fine grained checks, let's stop the task if
this is the case.
This commit is contained in:
Marco Trevisan (Treviño)
2021-04-09 19:41:48 +02:00
parent 8d545a0b95
commit 3717468a8a
2 changed files with 44 additions and 1 deletions
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11
libfprint/fp-device.c
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@@ -955,6 +955,7 @@ fp_device_verify (FpDevice *device,
{
g_autoptr(GTask) task = NULL;
FpDevicePrivate *priv = fp_device_get_instance_private (device);
FpDeviceClass *cls = FP_DEVICE_GET_CLASS (device);
FpMatchData *data;
task = g_task_new (device, cancellable, callback, user_data);
@@ -975,6 +976,14 @@ fp_device_verify (FpDevice *device,
return;
}
if (!cls->verify || !(cls->features & FPI_DEVICE_FEATURE_VERIFY))
{
g_task_return_error (task,
fpi_device_error_new_msg (FP_DEVICE_ERROR_NOT_SUPPORTED,
"Device has no verification support"));
return;
}
priv->current_action = FPI_DEVICE_ACTION_VERIFY;
priv->current_task = g_steal_pointer (&task);
maybe_cancel_on_cancelled (device, cancellable);
@@ -988,7 +997,7 @@ fp_device_verify (FpDevice *device,
// Attach the match data as task data so that it is destroyed
g_task_set_task_data (priv->current_task, data, (GDestroyNotify) match_data_free);
FP_DEVICE_GET_CLASS (device)->verify (device);
cls->verify (device);
}
/**