1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * Copyright (C) 2016 Mopria Alliance, Inc. 4 * Copyright (C) 2013 Hewlett-Packard Development Company, L.P. 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 #ifndef __IFC_STATUS_MONITOR_H__ 19 #define __IFC_STATUS_MONITOR_H__ 20 21 #include "wprint_status_types.h" 22 23 /* 24 * Interface for monitoring printer status as a job is processed 25 */ 26 typedef struct ifc_status_monitor_st { 27 /* 28 * Initializes a printer status monitor with connections params 29 */ 30 void (*init)(const struct ifc_status_monitor_st *this_p, 31 const wprint_connect_info_t *); 32 33 /* 34 * Gets status from a printer 35 */ 36 void (*get_status)(const struct ifc_status_monitor_st *this_p, 37 printer_state_dyn_t *printer_state_dyn); 38 39 /* 40 * Cancels the job 41 */ 42 status_t (*cancel)(const struct ifc_status_monitor_st *this_p, const char *requesting_user); 43 44 /* 45 * Starts monitoring printer status; accepts a callback for handling status updates 46 */ 47 void (*start)(const struct ifc_status_monitor_st *this_p, 48 void (*status_callback)(const printer_state_dyn_t *new_status, 49 const printer_state_dyn_t *old_status, void *param), 50 void *param); 51 52 /* 53 * Stops monitoring printer status 54 */ 55 void (*stop)(const struct ifc_status_monitor_st *this_p); 56 57 /* 58 * Destroy printer status monitor 59 */ 60 void (*destroy)(const struct ifc_status_monitor_st *this_p); 61 } ifc_status_monitor_t; 62 63 #endif // __IFC_STATUS_MONITOR_H__