initial upload
This commit is contained in:
parent
5fc05b102b
commit
52c26d31c4
4 changed files with 488 additions and 0 deletions
117
examples/osd/openvoting-box/resources/res-event1.c
Normal file
117
examples/osd/openvoting-box/resources/res-event1.c
Normal file
|
@ -0,0 +1,117 @@
|
|||
/*
|
||||
* Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* Example resource
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#include <string.h>
|
||||
#include "rest-engine.h"
|
||||
#include "er-coap.h"
|
||||
#include "dev/button-sensor.h"
|
||||
|
||||
#define DEBUG 0
|
||||
#if DEBUG
|
||||
#include <stdio.h>
|
||||
#define PRINTF(...) printf(__VA_ARGS__)
|
||||
#define PRINT6ADDR(addr) PRINTF("[%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x]", ((uint8_t *)addr)[0], ((uint8_t *)addr)[1], ((uint8_t *)addr)[2], ((uint8_t *)addr)[3], ((uint8_t *)addr)[4], ((uint8_t *)addr)[5], ((uint8_t *)addr)[6], ((uint8_t *)addr)[7], ((uint8_t *)addr)[8], ((uint8_t *)addr)[9], ((uint8_t *)addr)[10], ((uint8_t *)addr)[11], ((uint8_t *)addr)[12], ((uint8_t *)addr)[13], ((uint8_t *)addr)[14], ((uint8_t *)addr)[15])
|
||||
#define PRINTLLADDR(lladdr) PRINTF("[%02x:%02x:%02x:%02x:%02x:%02x]", (lladdr)->addr[0], (lladdr)->addr[1], (lladdr)->addr[2], (lladdr)->addr[3], (lladdr)->addr[4], (lladdr)->addr[5])
|
||||
#else
|
||||
#define PRINTF(...)
|
||||
#define PRINT6ADDR(addr)
|
||||
#define PRINTLLADDR(addr)
|
||||
#endif
|
||||
|
||||
static void res_get_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset);
|
||||
static void res_event_handler(void);
|
||||
|
||||
/*
|
||||
* Example for an event resource.
|
||||
* Additionally takes a period parameter that defines the interval to call [name]_periodic_handler().
|
||||
* A default post_handler takes care of subscriptions and manages a list of subscribers to notify.
|
||||
*/
|
||||
EVENT_RESOURCE(res_event1,
|
||||
"title=\"Event demo\";obs",
|
||||
res_get_handler,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
res_event_handler);
|
||||
|
||||
/*
|
||||
* Use local resource state that is accessed by res_get_handler() and altered by res_event_handler() or PUT or POST.
|
||||
*/
|
||||
static int32_t event_counter1 = 0;
|
||||
|
||||
static void
|
||||
res_get_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
|
||||
{
|
||||
int buttonstate = button_sensor.value(0);
|
||||
|
||||
unsigned int accept = -1;
|
||||
REST.get_header_accept(request, &accept);
|
||||
if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
|
||||
REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
|
||||
REST.set_response_payload(response, buffer, snprintf((char *)buffer, preferred_size, "EVENT %lu STATE %d", event_counter1, buttonstate));
|
||||
} else if(accept == REST.type.APPLICATION_JSON) {
|
||||
REST.set_header_content_type(response, REST.type.APPLICATION_JSON);
|
||||
REST.set_response_payload(response, buffer, snprintf((char *)buffer, preferred_size, "{'EVENT':%lu ,'STATE': %d}", event_counter1, buttonstate));
|
||||
} else {
|
||||
REST.set_response_status(response, REST.status.NOT_ACCEPTABLE);
|
||||
REST.set_response_payload(response, buffer, snprintf((char *)buffer, preferred_size, "Supporting content-types text/plain and application/json"));
|
||||
}
|
||||
|
||||
/* A post_handler that handles subscriptions/observing will be called for periodic resources by the framework. */
|
||||
|
||||
// tell client when to schedule re-registration: 1 Hour
|
||||
REST.set_header_max_age(response, /* uint32_t, Seconds */ 3600);
|
||||
}
|
||||
/*
|
||||
* Additionally, res_event_handler must be implemented for each EVENT_RESOURCE.
|
||||
* It is called through <res_name>.trigger(), usually from the server process.
|
||||
*/
|
||||
static void
|
||||
res_event_handler(void)
|
||||
{
|
||||
/* Do the update triggered by the event here, e.g., sampling a sensor. */
|
||||
++event_counter1;
|
||||
|
||||
/* Usually a condition is defined under with subscribers are notified, e.g., event was above a threshold. */
|
||||
if(1) {
|
||||
PRINTF("TICK %u for /%s\n", event_counter1, res_event.url);
|
||||
|
||||
/* Notify the registered observers which will trigger the res_get_handler to create the response. */
|
||||
REST.notify_subscribers(&res_event1);
|
||||
}
|
||||
}
|
117
examples/osd/openvoting-box/resources/res-event2.c
Normal file
117
examples/osd/openvoting-box/resources/res-event2.c
Normal file
|
@ -0,0 +1,117 @@
|
|||
/*
|
||||
* Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* Example resource
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#include <string.h>
|
||||
#include "rest-engine.h"
|
||||
#include "er-coap.h"
|
||||
#include "dev/button-sensor.h"
|
||||
|
||||
#define DEBUG 0
|
||||
#if DEBUG
|
||||
#include <stdio.h>
|
||||
#define PRINTF(...) printf(__VA_ARGS__)
|
||||
#define PRINT6ADDR(addr) PRINTF("[%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x]", ((uint8_t *)addr)[0], ((uint8_t *)addr)[1], ((uint8_t *)addr)[2], ((uint8_t *)addr)[3], ((uint8_t *)addr)[4], ((uint8_t *)addr)[5], ((uint8_t *)addr)[6], ((uint8_t *)addr)[7], ((uint8_t *)addr)[8], ((uint8_t *)addr)[9], ((uint8_t *)addr)[10], ((uint8_t *)addr)[11], ((uint8_t *)addr)[12], ((uint8_t *)addr)[13], ((uint8_t *)addr)[14], ((uint8_t *)addr)[15])
|
||||
#define PRINTLLADDR(lladdr) PRINTF("[%02x:%02x:%02x:%02x:%02x:%02x]", (lladdr)->addr[0], (lladdr)->addr[1], (lladdr)->addr[2], (lladdr)->addr[3], (lladdr)->addr[4], (lladdr)->addr[5])
|
||||
#else
|
||||
#define PRINTF(...)
|
||||
#define PRINT6ADDR(addr)
|
||||
#define PRINTLLADDR(addr)
|
||||
#endif
|
||||
|
||||
static void res_get_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset);
|
||||
static void res_event_handler(void);
|
||||
|
||||
/*
|
||||
* Example for an event resource.
|
||||
* Additionally takes a period parameter that defines the interval to call [name]_periodic_handler().
|
||||
* A default post_handler takes care of subscriptions and manages a list of subscribers to notify.
|
||||
*/
|
||||
EVENT_RESOURCE(res_event2,
|
||||
"title=\"Event demo\";obs",
|
||||
res_get_handler,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
res_event_handler);
|
||||
|
||||
/*
|
||||
* Use local resource state that is accessed by res_get_handler() and altered by res_event_handler() or PUT or POST.
|
||||
*/
|
||||
static int32_t event_counter2 = 0;
|
||||
|
||||
static void
|
||||
res_get_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
|
||||
{
|
||||
int buttonstate = button_sensor.value(0);
|
||||
|
||||
unsigned int accept = -1;
|
||||
REST.get_header_accept(request, &accept);
|
||||
if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
|
||||
REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
|
||||
REST.set_response_payload(response, buffer, snprintf((char *)buffer, preferred_size, "EVENT %lu STATE %d", event_counter2, buttonstate));
|
||||
} else if(accept == REST.type.APPLICATION_JSON) {
|
||||
REST.set_header_content_type(response, REST.type.APPLICATION_JSON);
|
||||
REST.set_response_payload(response, buffer, snprintf((char *)buffer, preferred_size, "{'EVENT':%lu ,'STATE': %d}", event_counter2, buttonstate));
|
||||
} else {
|
||||
REST.set_response_status(response, REST.status.NOT_ACCEPTABLE);
|
||||
REST.set_response_payload(response, buffer, snprintf((char *)buffer, preferred_size, "Supporting content-types text/plain and application/json"));
|
||||
}
|
||||
|
||||
/* A post_handler that handles subscriptions/observing will be called for periodic resources by the framework. */
|
||||
|
||||
// tell client when to schedule re-registration: 1 Hour
|
||||
REST.set_header_max_age(response, /* uint32_t, Seconds */ 3600);
|
||||
}
|
||||
/*
|
||||
* Additionally, res_event_handler must be implemented for each EVENT_RESOURCE.
|
||||
* It is called through <res_name>.trigger(), usually from the server process.
|
||||
*/
|
||||
static void
|
||||
res_event_handler(void)
|
||||
{
|
||||
/* Do the update triggered by the event here, e.g., sampling a sensor. */
|
||||
++event_counter2;
|
||||
|
||||
/* Usually a condition is defined under with subscribers are notified, e.g., event was above a threshold. */
|
||||
if(1) {
|
||||
PRINTF("TICK %u for /%s\n", event_counter2, res_event.url);
|
||||
|
||||
/* Notify the registered observers which will trigger the res_get_handler to create the response. */
|
||||
REST.notify_subscribers(&res_event2);
|
||||
}
|
||||
}
|
127
examples/osd/openvoting-box/resources/res-separate1.c
Normal file
127
examples/osd/openvoting-box/resources/res-separate1.c
Normal file
|
@ -0,0 +1,127 @@
|
|||
/*
|
||||
* Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* Example resource
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#include <string.h>
|
||||
#include "rest-engine.h"
|
||||
#include "er-coap-separate.h"
|
||||
#include "er-coap-transactions.h"
|
||||
|
||||
static void res_get_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset);
|
||||
static void res_resume_handler(void);
|
||||
|
||||
SEPARATE_RESOURCE(res_separate1,
|
||||
"title=\"Separate demo\"",
|
||||
res_get_handler,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
res_resume_handler);
|
||||
|
||||
/* A structure to store the information required for the separate handler */
|
||||
typedef struct application_separate_store {
|
||||
|
||||
/* Provided by Erbium to store generic request information such as remote address and token. */
|
||||
coap_separate_t request_metadata;
|
||||
|
||||
/* Add fields for addition information to be stored for finalizing, e.g.: */
|
||||
char buffer[16];
|
||||
} application_separate_store_t;
|
||||
|
||||
#define COAP_MAX_OPEN_SEPARATE 2
|
||||
|
||||
static uint8_t separate_active = 0;
|
||||
static application_separate_store_t separate_store[COAP_MAX_OPEN_SEPARATE];
|
||||
|
||||
static void
|
||||
res_get_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
|
||||
{
|
||||
/*
|
||||
* Example allows only one open separate response.
|
||||
* For multiple, the application must manage the list of stores.
|
||||
*/
|
||||
if(separate_active >= COAP_MAX_OPEN_SEPARATE) {
|
||||
coap_separate_reject();
|
||||
} else {
|
||||
++separate_active;
|
||||
|
||||
/* Take over and skip response by engine. */
|
||||
coap_separate_accept(request, &separate_store->request_metadata);
|
||||
/* Be aware to respect the Block2 option, which is also stored in the coap_separate_t. */
|
||||
|
||||
/*
|
||||
* At the moment, only the minimal information is stored in the store (client address, port, token, MID, type, and Block2).
|
||||
* Extend the store, if the application requires additional information from this handler.
|
||||
* buffer is an example field for custom information.
|
||||
*/
|
||||
snprintf(separate_store->buffer, sizeof(separate_store->buffer), "StoredInfo");
|
||||
}
|
||||
}
|
||||
static void
|
||||
res_resume_handler()
|
||||
{
|
||||
if(separate_active) {
|
||||
coap_transaction_t *transaction = NULL;
|
||||
if((transaction = coap_new_transaction(separate_store->request_metadata.mid, &separate_store->request_metadata.addr, separate_store->request_metadata.port))) {
|
||||
coap_packet_t response[1]; /* This way the packet can be treated as pointer as usual. */
|
||||
|
||||
/* Restore the request information for the response. */
|
||||
coap_separate_resume(response, &separate_store->request_metadata, REST.status.OK);
|
||||
|
||||
coap_set_payload(response, separate_store->buffer, strlen(separate_store->buffer));
|
||||
|
||||
/*
|
||||
* Be aware to respect the Block2 option, which is also stored in the coap_separate_t.
|
||||
* As it is a critical option, this example resource pretends to handle it for compliance.
|
||||
*/
|
||||
coap_set_header_block2(response, separate_store->request_metadata.block2_num, 0, separate_store->request_metadata.block2_size);
|
||||
|
||||
/* Warning: No check for serialization error. */
|
||||
transaction->packet_len = coap_serialize_message(response, transaction->packet);
|
||||
coap_send_transaction(transaction);
|
||||
/* The engine will clear the transaction (right after send for NON, after acked for CON). */
|
||||
|
||||
/* FIXME there could me more! */
|
||||
separate_active = 0;
|
||||
} else {
|
||||
/*
|
||||
* Set timer for retry, send error message, ...
|
||||
* The example simply waits for another button press.
|
||||
*/
|
||||
}
|
||||
} /* if (separate_active) */
|
||||
}
|
127
examples/osd/openvoting-box/resources/res-separate2.c
Normal file
127
examples/osd/openvoting-box/resources/res-separate2.c
Normal file
|
@ -0,0 +1,127 @@
|
|||
/*
|
||||
* Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* Example resource
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#include <string.h>
|
||||
#include "rest-engine.h"
|
||||
#include "er-coap-separate.h"
|
||||
#include "er-coap-transactions.h"
|
||||
|
||||
static void res_get_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset);
|
||||
static void res_resume_handler(void);
|
||||
|
||||
SEPARATE_RESOURCE(res_separate2,
|
||||
"title=\"Separate demo\"",
|
||||
res_get_handler,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
res_resume_handler);
|
||||
|
||||
/* A structure to store the information required for the separate handler */
|
||||
typedef struct application_separate_store {
|
||||
|
||||
/* Provided by Erbium to store generic request information such as remote address and token. */
|
||||
coap_separate_t request_metadata;
|
||||
|
||||
/* Add fields for addition information to be stored for finalizing, e.g.: */
|
||||
char buffer[16];
|
||||
} application_separate_store_t;
|
||||
|
||||
#define COAP_MAX_OPEN_SEPARATE 2
|
||||
|
||||
static uint8_t separate_active = 0;
|
||||
static application_separate_store_t separate_store[COAP_MAX_OPEN_SEPARATE];
|
||||
|
||||
static void
|
||||
res_get_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
|
||||
{
|
||||
/*
|
||||
* Example allows only one open separate response.
|
||||
* For multiple, the application must manage the list of stores.
|
||||
*/
|
||||
if(separate_active >= COAP_MAX_OPEN_SEPARATE) {
|
||||
coap_separate_reject();
|
||||
} else {
|
||||
++separate_active;
|
||||
|
||||
/* Take over and skip response by engine. */
|
||||
coap_separate_accept(request, &separate_store->request_metadata);
|
||||
/* Be aware to respect the Block2 option, which is also stored in the coap_separate_t. */
|
||||
|
||||
/*
|
||||
* At the moment, only the minimal information is stored in the store (client address, port, token, MID, type, and Block2).
|
||||
* Extend the store, if the application requires additional information from this handler.
|
||||
* buffer is an example field for custom information.
|
||||
*/
|
||||
snprintf(separate_store->buffer, sizeof(separate_store->buffer), "StoredInfo");
|
||||
}
|
||||
}
|
||||
static void
|
||||
res_resume_handler()
|
||||
{
|
||||
if(separate_active) {
|
||||
coap_transaction_t *transaction = NULL;
|
||||
if((transaction = coap_new_transaction(separate_store->request_metadata.mid, &separate_store->request_metadata.addr, separate_store->request_metadata.port))) {
|
||||
coap_packet_t response[1]; /* This way the packet can be treated as pointer as usual. */
|
||||
|
||||
/* Restore the request information for the response. */
|
||||
coap_separate_resume(response, &separate_store->request_metadata, REST.status.OK);
|
||||
|
||||
coap_set_payload(response, separate_store->buffer, strlen(separate_store->buffer));
|
||||
|
||||
/*
|
||||
* Be aware to respect the Block2 option, which is also stored in the coap_separate_t.
|
||||
* As it is a critical option, this example resource pretends to handle it for compliance.
|
||||
*/
|
||||
coap_set_header_block2(response, separate_store->request_metadata.block2_num, 0, separate_store->request_metadata.block2_size);
|
||||
|
||||
/* Warning: No check for serialization error. */
|
||||
transaction->packet_len = coap_serialize_message(response, transaction->packet);
|
||||
coap_send_transaction(transaction);
|
||||
/* The engine will clear the transaction (right after send for NON, after acked for CON). */
|
||||
|
||||
/* FIXME there could me more! */
|
||||
separate_active = 0;
|
||||
} else {
|
||||
/*
|
||||
* Set timer for retry, send error message, ...
|
||||
* The example simply waits for another button press.
|
||||
*/
|
||||
}
|
||||
} /* if (separate_active) */
|
||||
}
|
Loading…
Reference in a new issue