nes-proj/os/services/ipso-objects/ipso-blockwise-test.c

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/*
* Copyright (c) 2016, SICS Swedish ICT AB
* 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 copyright holder 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 COPYRIGHT HOLDER 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
* COPYRIGHT HOLDER 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.
*/
/**
* \addtogroup ipso-objects
* @{
*
* Code to test blockwise transfer together with the LWM2M-engine.
* This object tests get with BLOCK2 and put with BLOCK1.
*
*/
#include "lwm2m-engine.h"
#include "coap.h"
#include <string.h>
#define DEBUG 0
#if DEBUG
#include <stdio.h>
#define PRINTF(...) printf(__VA_ARGS__)
#else
#define PRINTF(...)
#endif
static lwm2m_object_instance_t reg_object;
static char junk[64];
static const lwm2m_resource_id_t resources[] =
{
RO(10000),
RO(11000),
RW(11001)
};
#define LEN 900
static lwm2m_status_t
opaque_callback(lwm2m_object_instance_t *object,
lwm2m_context_t *ctx, int num_to_write)
{
int i;
PRINTF("opaque-stream callback num_to_write: %d off: %d outlen: %d\n",
num_to_write, ctx->offset, ctx->outbuf->len);
for(i = 0; i < num_to_write; i++) {
ctx->outbuf->buffer[i + ctx->outbuf->len] = '0' + (i & 31);
if(i + ctx->offset == LEN) break;
}
ctx->outbuf->len += i;
if(ctx->offset + i < LEN) {
ctx->writer_flags |= WRITER_HAS_MORE;
}
return LWM2M_STATUS_OK;
}
/*---------------------------------------------------------------------------*/
static lwm2m_status_t
lwm2m_callback(lwm2m_object_instance_t *object,
lwm2m_context_t *ctx)
{
uint32_t num;
uint8_t more;
uint16_t size;
uint32_t offset;
char *str = "just a string";
PRINTF("Got request at: %d/%d/%d lv:%d\n", ctx->object_id, ctx->object_instance_id, ctx->resource_id, ctx->level);
if(ctx->level == 1) {
/* Should not happen */
return LWM2M_STATUS_ERROR;
}
if(ctx->level == 2) {
/* This is a get whole object - or write whole object */
return LWM2M_STATUS_ERROR;
}
if(ctx->operation == LWM2M_OP_READ) {
#if DEBUG
if(coap_get_header_block2(ctx->request, &num, &more, &size, &offset)) {
PRINTF("CoAP BLOCK2: %d/%d/%d offset:%d\n", num, more, size, offset);
}
#endif
switch(ctx->resource_id) {
case 10000:
lwm2m_object_write_string(ctx, str, strlen(str));
break;
case 11000:
case 11001:
PRINTF("Preparing object write\n");
lwm2m_object_write_opaque_stream(ctx, LEN, opaque_callback);
break;
default:
return LWM2M_STATUS_NOT_FOUND;
}
} else if(ctx->operation == LWM2M_OP_WRITE) {
if(coap_get_header_block1(ctx->request, &num, &more, &size, &offset)) {
PRINTF("CoAP BLOCK1: %d/%d/%d offset:%d\n", num, more, size, offset);
coap_set_header_block1(ctx->response, num, 0, size);
}
}
return LWM2M_STATUS_OK;
}
void
ipso_blockwise_test_init(void)
{
int i;
PRINTF("Starting blockwise\n");
reg_object.object_id = 4711;
reg_object.instance_id = 0;
reg_object.resource_ids = resources;
reg_object.resource_count =
sizeof(resources) / sizeof(lwm2m_resource_id_t);
reg_object.callback = lwm2m_callback;
for(i = 0; i < sizeof(junk); i++) {
junk[i] = '0' + i;
}
junk[i - 1] = 0;
lwm2m_engine_add_object(&reg_object);
}
2017-10-26 19:38:55 +00:00
/** @} */