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image-device: Redefine internal states and valid transitions

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This adds a number of new internal states to better capture what is
going on. Also added are checks that all transitions we make are in the
set of expected and valid transitions.

Only three drivers use the state_change notification. These drivers are
updated accordingly.
This commit is contained in:
Benjamin Berg
2020-10-07 16:54:41 +02:00
parent f56aacc7ef
commit 3ee5536a13
5 changed files with 114 additions and 39 deletions
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6
libfprint/drivers/virtual-image.c
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@@ -195,7 +195,7 @@ recv_image (FpDeviceVirtualImage *self, GInputStream *stream)
g_debug ("Starting image receive (if active), state is: %i", state);
/* Only register if the state is active. */
if (state != FPI_IMAGE_DEVICE_STATE_INACTIVE)
if (state >= FPI_IMAGE_DEVICE_STATE_IDLE)
{
g_input_stream_read_all_async (stream,
self->recv_img_hdr,
@@ -338,10 +338,10 @@ dev_activate (FpImageDevice *dev)
{
FpDeviceVirtualImage *self = FPI_DEVICE_VIRTUAL_IMAGE (dev);
fpi_image_device_activate_complete (dev, NULL);
if (self->connection)
recv_image (self, g_io_stream_get_input_stream (G_IO_STREAM (self->connection)));
fpi_image_device_activate_complete (dev, NULL);
}
static void