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|
"
(C) 2010-2012 by Holger Hans Peter Freyther
All Rights Reserved
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
"
Collection subclass: MessageBuffer [
| chunks |
<category: 'OsmoNetwork-Message'>
<comment: 'A network buffer/creation class. Modeled after the msgb of osmocore'>
MessageBuffer class >> new [
<category: 'creation'>
^ (super new)
initialize;
yourself
]
initialize [
<category: 'accessing'>
chunks := OrderedCollection new.
]
toMessage [
<category: 'creation'>
^ self
]
prependByteArray: aByteArray [
<category: 'creation'>
chunks addFirst: aByteArray.
]
putByte: aByte [
<category: 'creation'>
chunks add: (ByteArray with: aByte)
]
putByteArray: aByteArray [
<category: 'creation'>
chunks add: aByteArray.
]
put16: aInt [
| data low high |
<category: 'creation'>
low := (aInt bitAnd: 16rFF).
high := (aInt bitShift: -8) bitAnd: 16rFF.
data := ByteArray with: low with: high.
chunks add: data.
]
putLen16: aInt [
| data low high |
<category: 'creation'>
low := (aInt bitShift: -8) bitAnd: 16rFF.
high := aInt bitAnd: 16rFF.
data := ByteArray with: low with: high.
chunks add: data.
]
putLen32: aInt [
| a b c d data |
<category: 'creation'>
a := (aInt bitShift: -24) bitAnd: 16rFF.
b := (aInt bitShift: -16) bitAnd: 16rFF.
c := (aInt bitShift: -8) bitAnd: 16rFF.
d := (aInt bitShift: 0) bitAnd: 16rFF.
data := ByteArray with: a with: b with: c with: d.
chunks add: data.
]
toByteArray [
<category: 'deprecated'>
^ self asByteArray.
]
size [
"Count of how much data we have collected"
<category: 'accessing'>
^ chunks inject: 0 into: [:acc :each | acc + each size ]
]
do: aBlock [
<category: 'accessing'>
chunks do: [:chunk |
chunk do: aBlock.
].
]
]
|
