Compact log definition

readme.md

Structured log commands

Introduce template

01	log level	logger id	TplId	Tpl body

Introduce date

02	date

date = Year-Month-day

Introduce time

03	time

time = Hour:Minute

Row

04	Seconds + millis	tpl id	Params

Introduce logger

05	loggerid	logger name

Introduce string

06	encoding	string id	string	0x00

Introduce CRC32

07	CRC32

Introduce param

08	Paramid	Param name

Data values

Half byte

Data range: -63 .. 64

flag = 1

7	6	5	4	3	2	1	0
0	Sign	d5	d4	d3	d2	d2	d0

Special flags

flag = 10

7	6	5	4	3	2	1	0
1	0	F5	F4	F3	F2	F1	F0

F5	F4	F3	F2	F1	F0	Description
0	0	0	0	0	0	Null

Lengthed int

Data range = Length + 1 byted integer

flag = 110
length = 5 bit

7	6	5	4	3	2	1	0
1	1	0	l4	l3	l2	l1	l0
..	..	..	..	..	..	..	..
7	6	5	4	3	2	1	0
d7	d6	d5	d4	d3	d2	d2	d0

Floating point value

flag = 1110

7	6	5	4	3	2	1	0
1	1	1	0	-	-	-	-
..	..	..	..	..	..	..	..
d7	d6	d5	d4	d3	d2	d2	d0

Datetime + UUID

flag = 11110

7	6	5	4	3	2	1	0
1	1	1	1	0	F2	F1	F0
..	..	..	..	..	..	..	..

F2	F1	F0	Type
0	0	0	UUID
0	0	1	Date
0	1	0	Time
0	1	1	Date + Time
1	..	..	Reserved

flag = 111110

7	6	5	4	3	2	1	0
1	1	1	1	1	0	-	-
..	..	..	..	..	..	..	..

String

flag = 111111
encoding = 0 - utf-8 / 1 - latin-1
in place = 0 - use string id / 1 - in place string

7	6	5	4	3	2	1	0
1	1	1	1	1	1	encoding	in place
..	..	..	..	..	..	..	..
d7	d6	d5	d4	d3	d2	d2	d0
0	0	0	0	0	0	0	0

archive.md

Archive file format

archive:[SCHEMA]
bunch:[SIZE]
[bunch data]
bunch:[SIZE]
[bunch data]
...
bunch:[SIZE]
[bunch data]

Common rules

• value - value itself
• [count]*value - duplicate value count times
• \N - null-reference represent null value
• '=' - separator for prefix and repetition group

Example

archive:transaction_id=integer,sms_text=text,add_date=date,delivered_count=integer
bunch:3
1025456122=0;1;2
3*"This is sms text"
1506862923=0;10;20
0=3*1

equals to

transaction_id;sms_text;add_date;delivered_count
1025456122;"This is sms text";"2017-10-01 16:02:03";1
1025456123;"This is sms text";"2017-10-01 16:02:13";1
1025456124;"This is sms text";"2017-10-01 16:02:23";1