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/*
This file is part of the ArduinoBLE library.
Copyright (c) 2018 Arduino SA. All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#
include
"
BLEProperty.h
"
#
include
"
local/BLELocalCharacteristic.h
"
#
include
"
remote/BLERemoteCharacteristic.h
"
#
include
"
BLECharacteristic.h
"
extern
"
C
"
int
strcasecmp
(
char
const
*a,
char
const
*b);
BLECharacteristic::BLECharacteristic
() :
BLECharacteristic((BLELocalCharacteristic*)NULL)
{
}
BLECharacteristic::BLECharacteristic
(BLELocalCharacteristic* local) :
_local(local),
_remote(
NULL
)
{
if
(_local) {
_local->
retain
();
}
}
BLECharacteristic::BLECharacteristic
(BLERemoteCharacteristic* remote) :
_local(
NULL
),
_remote(remote)
{
if
(_remote) {
_remote->
retain
();
}
}
BLECharacteristic::BLECharacteristic
(
const
char
* uuid,
uint16_t
permissions,
int
valueSize,
bool
fixedLength) :
BLECharacteristic(
new
BLELocalCharacteristic(uuid, permissions, valueSize, fixedLength))
{
}
BLECharacteristic::BLECharacteristic
(
const
char
* uuid,
uint16_t
permissions,
const
char
* value) :
BLECharacteristic(
new
BLELocalCharacteristic(uuid, permissions, value))
{
}
BLECharacteristic::BLECharacteristic
(
const
BLECharacteristic& other)
{
_local = other.
_local
;
if
(_local) {
_local->
retain
();
}
_remote = other.
_remote
;
if
(_remote) {
_remote->
retain
();
}
}
BLECharacteristic::~BLECharacteristic
()
{
if
(_local && _local->
release
() ==
0
) {
delete
_local;
}
if
(_remote && _remote->
release
() ==
0
) {
delete
_remote;
}
}
const
char
*
BLECharacteristic::uuid
()
const
{
if
(_local) {
return
_local->
uuid
();
}
if
(_remote) {
return
_remote->
uuid
();
}
return
"
"
;
}
uint8_t
BLECharacteristic::properties
()
const
{
if
(_local) {
return
_local->
properties
();
}
if
(_remote) {
return
_remote->
properties
();
}
return
0
;
}
int
BLECharacteristic::valueSize
()
const
{
if
(_local) {
return
_local->
valueSize
();
}
if
(_remote) {
return
_remote->
valueLength
();
}
return
0
;
}
const
uint8_t
*
BLECharacteristic::value
()
const
{
if
(_local) {
return
_local->
value
();
}
if
(_remote) {
return
_remote->
value
();
}
return
NULL
;
}
int
BLECharacteristic::valueLength
()
const
{
if
(_local) {
return
_local->
valueLength
();
}
if
(_remote) {
return
_remote->
valueLength
();
}
return
0
;
}
uint8_t
BLECharacteristic::
operator
[] (
int
offset)
const
{
if
(_local) {
return
(*_local)[offset];
}
if
(_remote) {
return
(*_remote)[offset];
}
return
0
;
}
int
BLECharacteristic::readValue
(
uint8_t
value[],
int
length)
{
int
bytesRead =
0
;
if
(_local) {
bytesRead =
min
(length, _local->
valueLength
());
memcpy
(value, _local->
value
(), bytesRead);
}
if
(_remote) {
//
trigger a read if the updated value (notification/indication)
//
has already been read and the characteristic is readable
if
(_remote->
updatedValueRead
() &&
canRead
()) {
if
(!
read
()) {
//
read failed
return
0
;
}
}
bytesRead =
min
(length, _remote->
valueLength
());
memcpy
(value, _remote->
value
(), bytesRead);
}
return
bytesRead;
}
int
BLECharacteristic::readValue
(
void
* value,
int
length)
{
return
readValue
((
uint8_t
*)value, length);
}
int
BLECharacteristic::readValue
(
uint8_t
& value)
{
value =
0
;
return
readValue
((
uint8_t
*)&value,
sizeof
(value));
}
int
BLECharacteristic::readValue
(
int8_t
& value)
{
value =
0
;
return
readValue
((
uint8_t
*)&value,
sizeof
(value));
}
int
BLECharacteristic::readValue
(
uint16_t
& value)
{
value =
0
;
return
readValue
((
uint8_t
*)&value,
sizeof
(value));
}
int
BLECharacteristic::readValue
(
int16_t
& value)
{
value =
0
;
return
readValue
((
uint8_t
*)&value,
sizeof
(value));
}
int
BLECharacteristic::readValue
(
uint32_t
& value)
{
value =
0
;
return
readValue
((
uint8_t
*)&value,
sizeof
(value));
}
int
BLECharacteristic::readValue
(
int32_t
& value)
{
value =
0
;
return
readValue
((
uint8_t
*)&value,
sizeof
(value));
}
int
BLECharacteristic::writeValue
(
const
uint8_t
value[],
int
length,
bool
withResponse)
{
if
(_local) {
return
_local->
writeValue
(value, length);
}
if
(_remote) {
return
_remote->
writeValue
(value, length, withResponse);
}
return
0
;
}
int
BLECharacteristic::writeValue
(
const
void
* value,
int
length,
bool
withResponse)
{
return
writeValue
((
const
uint8_t
*)value, length, withResponse);
}
int
BLECharacteristic::writeValue
(
const
char
* value,
bool
withResponse)
{
if
(_local) {
return
_local->
writeValue
(value);
}
if
(_remote) {
return
_remote->
writeValue
(value, withResponse);
}
return
0
;
}
int
BLECharacteristic::writeValue
(
uint8_t
value,
bool
withResponse)
{
return
writeValue
((
uint8_t
*)&value,
sizeof
(value), withResponse);
}
int
BLECharacteristic::writeValue
(
int8_t
value,
bool
withResponse)
{
return
writeValue
((
uint8_t
*)&value,
sizeof
(value), withResponse);
}
int
BLECharacteristic::writeValue
(
uint16_t
value,
bool
withResponse)
{
return
writeValue
((
uint8_t
*)&value,
sizeof
(value), withResponse);
}
int
BLECharacteristic::writeValue
(
int16_t
value,
bool
withResponse)
{
return
writeValue
((
uint8_t
*)&value,
sizeof
(value), withResponse);
}
int
BLECharacteristic::writeValue
(
uint32_t
value,
bool
withResponse)
{
return
writeValue
((
uint8_t
*)&value,
sizeof
(value), withResponse);
}
int
BLECharacteristic::writeValue
(
int32_t
value,
bool
withResponse)
{
return
writeValue
((
uint8_t
*)&value,
sizeof
(value), withResponse);
}
int
BLECharacteristic::broadcast
()
{
if
(_local) {
return
_local->
broadcast
();
}
return
0
;
}
bool
BLECharacteristic::written
()
{
if
(_local) {
return
_local->
written
();
}
return
false
;
}
bool
BLECharacteristic::subscribed
()
{
if
(_local) {
return
_local->
subscribed
();
}
return
false
;
}
bool
BLECharacteristic::valueUpdated
()
{
if
(_remote) {
return
_remote->
valueUpdated
();
}
return
false
;
}
void
BLECharacteristic::addDescriptor
(BLEDescriptor& descriptor)
{
if
(_local) {
return
_local->
addDescriptor
(descriptor);
}
}
BLECharacteristic::
operator
bool
()
const
{
return
(_local !=
NULL
) || (_remote !=
NULL
);
}
BLELocalCharacteristic*
BLECharacteristic::local
()
{
return
_local;
}
void
BLECharacteristic::setEventHandler
(
int
event, BLECharacteristicEventHandler eventHandler)
{
if
(_local) {
_local->
setEventHandler
((BLECharacteristicEvent)event, eventHandler);
}
if
(_remote) {
_remote->
setEventHandler
((BLECharacteristicEvent)event, eventHandler);
}
}
int
BLECharacteristic::descriptorCount
()
const
{
if
(_remote) {
return
_remote->
descriptorCount
();
}
return
0
;
}
bool
BLECharacteristic::hasDescriptor
(
const
char
* uuid)
const
{
return
hasDescriptor
(uuid,
0
);
}
bool
BLECharacteristic::hasDescriptor
(
const
char
* uuid,
int
index)
const
{
if
(_remote) {
int
count =
0
;
int
numDescriptors = _remote->
descriptorCount
();
for
(
int
i =
0
; i < numDescriptors; i++) {
BLERemoteDescriptor* d = _remote->
descriptor
(i);
if
(
strcasecmp
(uuid, d->
uuid
()) ==
0
) {
if
(count == index) {
return
true
;
}
count++;
}
}
}
return
false
;
}
BLEDescriptor
BLECharacteristic::descriptor
(
int
index)
const
{
if
(_remote) {
return
BLEDescriptor
(_remote->
descriptor
(index));
}
return
BLEDescriptor
();
}
BLEDescriptor
BLECharacteristic::descriptor
(
const
char
* uuid)
const
{
return
descriptor
(uuid,
0
);
}
BLEDescriptor
BLECharacteristic::descriptor
(
const
char
* uuid,
int
index)
const
{
if
(_remote) {
int
count =
0
;
int
numDescriptors = _remote->
descriptorCount
();
for
(
int
i =
0
; i < numDescriptors; i++) {
BLERemoteDescriptor* d = _remote->
descriptor
(i);
if
(
strcasecmp
(uuid, d->
uuid
()) ==
0
) {
if
(count == index) {
return
BLEDescriptor
(d);
}
count++;
}
}
}
return
BLEDescriptor
();
}
bool
BLECharacteristic::canRead
()
{
if
(_remote) {
return
(
properties
() & BLERead) !=
0
;
}
return
false
;
}
bool
BLECharacteristic::read
()
{
if
(_remote) {
return
_remote->
read
();
}
return
false
;
}
bool
BLECharacteristic::canWrite
()
{
if
(_remote) {
return
(
properties
() & (BLEWrite | BLEWriteWithoutResponse)) !=
0
;
}
return
false
;
}
bool
BLECharacteristic::canSubscribe
()
{
if
(_remote) {
return
(
properties
() & (BLENotify | BLEIndicate)) !=
0
;
}
return
false
;
}
bool
BLECharacteristic::subscribe
()
{
if
(_remote) {
return
_remote->
writeCccd
((
properties
() & BLEIndicate) ?
0x0002
:
0x0001
);
}
return
false
;
}
bool
BLECharacteristic::canUnsubscribe
()
{
return
canSubscribe
();
}
bool
BLECharacteristic::unsubscribe
()
{
if
(_remote) {
return
_remote->
writeCccd
(
0x0000
);
}
return
false
;
}
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