51b73127e9
* Simple HTTP webservice with support for both receiving and sending HTTP requests. * json-ws example that optionally push sensor data to COSM over IPv6.
135 lines
4.6 KiB
C
135 lines
4.6 KiB
C
/*
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* Copyright (c) 2011-2012, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*/
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/**
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* \file
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* JSON output generation
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* \author
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* Niclas Finne <nfi@sics.se>
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* Joakim Eriksson <joakime@sics.se>
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*/
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#ifndef __JSONTREE_H__
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#define __JSONTREE_H__
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#include "contiki-conf.h"
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#include "json.h"
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#ifdef JSONTREE_CONF_MAX_DEPTH
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#define JSONTREE_MAX_DEPTH JSONTREE_CONF_MAX_DEPTH
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#else
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#define JSONTREE_MAX_DEPTH 10
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#endif /* JSONTREE_CONF_MAX_DEPTH */
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struct jsontree_context {
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struct jsontree_value *values[JSONTREE_MAX_DEPTH];
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uint16_t index[JSONTREE_MAX_DEPTH];
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int (* putchar)(int);
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uint8_t depth;
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uint8_t path;
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int callback_state;
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};
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struct jsontree_value {
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uint8_t type;
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/* followed by a value */
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};
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struct jsontree_string {
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uint8_t type;
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const char *value;
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};
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struct jsontree_int {
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uint8_t type;
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int value;
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};
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/* NOTE: the jsontree_callback set will receive a jsonparse state */
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struct jsonparse_state;
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struct jsontree_callback {
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uint8_t type;
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int (* output)(struct jsontree_context *js_ctx);
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int (* set)(struct jsontree_context *js_ctx, struct jsonparse_state *parser);
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};
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struct jsontree_pair {
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const char *name;
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struct jsontree_value *value;
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};
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struct jsontree_object {
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uint8_t type;
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uint8_t count;
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struct jsontree_pair *pairs;
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};
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struct jsontree_array {
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uint8_t type;
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uint8_t count;
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struct jsontree_value **values;
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};
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#define JSONTREE_STRING(text) {JSON_TYPE_STRING, (text)}
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#define JSONTREE_PAIR(name, value) {(name), (struct jsontree_value *)(value)}
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#define JSONTREE_CALLBACK(output, set) {JSON_TYPE_CALLBACK, (output), (set)}
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#define JSONTREE_OBJECT(name, ...) \
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static struct jsontree_pair jsontree_pair_##name[] = {__VA_ARGS__}; \
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static struct jsontree_object name = { \
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JSON_TYPE_OBJECT, \
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sizeof(jsontree_pair_##name)/sizeof(struct jsontree_pair), \
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jsontree_pair_##name }
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#define JSONTREE_OBJECT_EXT(name, ...) \
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static struct jsontree_pair jsontree_pair_##name[] = {__VA_ARGS__}; \
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struct jsontree_object name = { \
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JSON_TYPE_OBJECT, \
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sizeof(jsontree_pair_##name)/sizeof(struct jsontree_pair), \
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jsontree_pair_##name }
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void jsontree_setup(struct jsontree_context *js_ctx,
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struct jsontree_value *root, int (* putchar)(int));
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void jsontree_reset(struct jsontree_context *js_ctx);
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const char *jsontree_path_name(const struct jsontree_context *js_ctx,
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int depth);
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void jsontree_write_int(const struct jsontree_context *js_ctx, int value);
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void jsontree_write_atom(const struct jsontree_context *js_ctx,
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const char *text);
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void jsontree_write_string(const struct jsontree_context *js_ctx,
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const char *text);
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int jsontree_print_next(struct jsontree_context *js_ctx);
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struct jsontree_value *jsontree_find_next(struct jsontree_context *js_ctx,
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int type);
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#endif /* __JSONTREE_H__ */
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