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Annotation of embedaddon/curl/lib/mqtt.h, revision 1.1.1.1

1.1       misho       1: #ifndef HEADER_CURL_MQTT_H
                      2: #define HEADER_CURL_MQTT_H
                      3: /***************************************************************************
                      4:  *                                  _   _ ____  _
                      5:  *  Project                     ___| | | |  _ \| |
                      6:  *                             / __| | | | |_) | |
                      7:  *                            | (__| |_| |  _ <| |___
                      8:  *                             \___|\___/|_| \_\_____|
                      9:  *
                     10:  * Copyright (C) 2019 - 2020, Björn Stenberg, <bjorn@haxx.se>
                     11:  *
                     12:  * This software is licensed as described in the file COPYING, which
                     13:  * you should have received as part of this distribution. The terms
                     14:  * are also available at https://curl.haxx.se/docs/copyright.html.
                     15:  *
                     16:  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
                     17:  * copies of the Software, and permit persons to whom the Software is
                     18:  * furnished to do so, under the terms of the COPYING file.
                     19:  *
                     20:  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
                     21:  * KIND, either express or implied.
                     22:  *
                     23:  ***************************************************************************/
                     24: 
                     25: #ifdef CURL_ENABLE_MQTT
                     26: extern const struct Curl_handler Curl_handler_mqtt;
                     27: #endif
                     28: 
                     29: enum mqttstate {
                     30:   MQTT_FIRST,             /* 0 */
                     31:   MQTT_REMAINING_LENGTH,  /* 1 */
                     32:   MQTT_CONNACK,           /* 2 */
                     33:   MQTT_SUBACK,            /* 3 */
                     34:   MQTT_SUBACK_COMING,     /* 4 - the SUBACK remainder */
                     35:   MQTT_PUBWAIT,    /* 5 - wait for publish */
                     36:   MQTT_PUB_REMAIN,  /* 6 - wait for the remainder of the publish */
                     37: 
                     38:   MQTT_NOSTATE /* 7 - never used an actual state */
                     39: };
                     40: 
                     41: struct mqtt_conn {
                     42:   enum mqttstate state;
                     43:   enum mqttstate nextstate; /* switch to this after remaining length is
                     44:                                done */
                     45:   unsigned int packetid;
                     46: };
                     47: 
                     48: /* protocol-specific transfer-related data */
                     49: struct MQTT {
                     50:   char *sendleftovers;
                     51:   size_t nsend; /* size of sendleftovers */
                     52: 
                     53:   /* when receiving */
                     54:   size_t npacket; /* byte counter */
                     55:   unsigned char firstbyte;
                     56:   size_t remaining_length;
                     57: };
                     58: 
                     59: #endif /* HEADER_CURL_MQTT_H */