libcoap  4.3.0rc3
coap_resource_internal.h
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1 /*
2  * coap_resource_internal.h -- generic resource handling
3  *
4  * Copyright (C) 2010,2011,2014-2021 Olaf Bergmann <bergmann@tzi.org>
5  *
6  * This file is part of the CoAP library libcoap. Please see README for terms
7  * of use.
8  */
9 
15 #ifndef COAP_RESOURCE_INTERNAL_H_
16 #define COAP_RESOURCE_INTERNAL_H_
17 
18 #include "uthash.h"
19 
29 struct coap_attr_t {
30  struct coap_attr_t *next;
33  int flags;
34 };
35 
41  unsigned int dirty:1;
42  unsigned int partiallydirty:1;
44  unsigned int observable:1;
45  unsigned int cacheable:1;
46  unsigned int is_unknown:1;
47  unsigned int is_proxy_uri:1;
57 
58  UT_hash_handle hh;
59 
70  int flags;
76  unsigned int observe;
77 
82 
87 
92 
97  void *user_data;
98 
99 };
100 
107 
108 #define RESOURCES_ADD(r, obj) \
109  HASH_ADD(hh, (r), uri_path->s[0], (obj)->uri_path->length, (obj))
110 
111 #define RESOURCES_DELETE(r, obj) \
112  HASH_DELETE(hh, (r), (obj))
113 
114 #define RESOURCES_ITER(r,tmp) \
115  coap_resource_t *tmp, *rtmp; \
116  HASH_ITER(hh, (r), tmp, rtmp)
117 
118 #define RESOURCES_FIND(r, k, res) { \
119  HASH_FIND(hh, (r), (k)->s, (k)->length, (res)); \
120  }
121 
129 void coap_delete_attr(coap_attr_t *attr);
130 
132  unsigned char *,
133  size_t *, size_t,
134  coap_opt_t *);
135 
136 
139 #endif /* COAP_RESOURCE_INTERNAL_H_ */
coap_print_status_t coap_print_wellknown(coap_context_t *, unsigned char *, size_t *, size_t, coap_opt_t *)
Prints the names of all known resources to buf.
Definition: resource.c:169
void coap_delete_all_resources(coap_context_t *context)
Deletes all resources from given context and frees their storage.
Definition: resource.c:588
void coap_delete_attr(coap_attr_t *attr)
Deletes an attribute.
Definition: resource.c:466
unsigned int coap_print_status_t
Status word to encode the result of conditional print or copy operations such as coap_print_link().
Definition: resource.h:322
void(* coap_method_handler_t)(coap_resource_t *, coap_session_t *, const coap_pdu_t *, const coap_string_t *, coap_pdu_t *)
Definition of message handler function.
Definition: resource.h:40
uint8_t coap_opt_t
Use byte-oriented access methods here because sliding a complex struct coap_opt_t over the data buffe...
Definition: option.h:26
Abstraction of attribute associated with a resource.
coap_str_const_t * value
Value of the attribute (can be NULL)
struct coap_attr_t * next
Pointer to next in chain or NULL.
coap_str_const_t * name
Name of the attribute.
The CoAP stack's global state is stored in a coap_context_t object.
Abstraction of resource that can be attached to coap_context_t.
unsigned int dirty
set to 1 if resource has changed
unsigned int partiallydirty
set to 1 if some subscribers have not yet been notified of the last change
coap_subscription_t * subscribers
list of observers for this resource
void * user_data
This pointer is under user control.
coap_str_const_t ** proxy_name_list
Array valid names this host is known by (proxy support)
coap_str_const_t * uri_path
Request URI Path for this resource.
unsigned int observe
The next value for the Observe option.
unsigned int cacheable
can be cached
coap_context_t * context
Pointer back to the context that 'owns' this resource.
coap_method_handler_t handler[7]
Used to store handlers for the seven coap methods GET, POST, PUT, DELETE, FETCH, PATCH and IPATCH.
unsigned int is_proxy_uri
resource created for proxy URI handler
unsigned int is_unknown
resource created for unknown handler
coap_attr_t * link_attr
attributes to be included with the link format
unsigned int observable
can be observed
size_t proxy_name_count
Count of valid names this host is known by (proxy support)
int flags
zero or more COAP_RESOURCE_FLAGS_* or'd together
CoAP string data definition with const data.
Definition: str.h:38
Subscriber information.