libfprint/libfprint/fp-device-private.h
Benjamin Berg b6dd522459 Rework device removal to have a nice API
This enhances the device removal to create a well defined behaviour.

Primarily, it means that:
 * "device-removed" will only be called for closed devices
 * "removed" will be called only when no operation is active

Note that all actions will fail with FP_DEVICE_ERROR_REMOVED, *except*
for open which will only return this error if it failed.

Resolves: #330
2020-11-23 17:47:03 +01:00

84 lines
2.3 KiB
C

/*
* FpDevice - A fingerprint reader device
* Copyright (C) 2019 Benjamin Berg <bberg@redhat.com>
* Copyright (C) 2019 Marco Trevisan <marco.trevisan@canonical.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include "fpi-device.h"
typedef struct
{
FpDeviceType type;
GUsbDevice *usb_device;
const gchar *virtual_env;
gboolean is_removed;
gboolean is_open;
gchar *device_id;
gchar *device_name;
FpScanType scan_type;
guint64 driver_data;
gint nr_enroll_stages;
GSList *sources;
/* We always make sure that only one task is run at a time. */
FpiDeviceAction current_action;
GTask *current_task;
GAsyncReadyCallback current_user_cb;
gulong current_cancellable_id;
GSource *current_idle_cancel_source;
GSource *current_task_idle_return_source;
/* State for tasks */
gboolean wait_for_finger;
FpFingerStatusFlags finger_status;
} FpDevicePrivate;
typedef struct
{
FpPrint *print;
FpEnrollProgress enroll_progress_cb;
gpointer enroll_progress_data;
GDestroyNotify enroll_progress_destroy;
} FpEnrollData;
void enroll_data_free (FpEnrollData *enroll_data);
typedef struct
{
FpPrint *enrolled_print; /* verify */
GPtrArray *gallery; /* identify */
gboolean result_reported;
FpPrint *match;
FpPrint *print;
GError *error;
FpMatchCb match_cb;
gpointer match_data;
GDestroyNotify match_destroy;
} FpMatchData;
void match_data_free (FpMatchData *match_data);