MscGen
Developer(s) | Michael McTernan |
---|---|
Stable release |
0.20
/ March 5, 2011 |
Written in | C |
Operating system | Cross-platform |
Type | Diagramming software |
License | GNU General Public License |
Website |
www |
Mscgen (short for MSC generator) is a software tool for drawing message sequence charts from a simple to manage text-based source file. Rendered charts can be output in PNG, SVG and PostScript, with hyperlink information in ismap format. There is an extension for MediaWiki, Sphinx (documentation generator) and integration with Doxygen that allows embedding of charts into source code comments with generated automatically inserted into the generated documentation page. Mscgen is free software licensed under the GNU General Public License (GPL).
Examples
The following example is from the author:
msc {
a,b,c;
a->b [label="ab()"] ;
b->c [label="bc(TRUE)"];
c=>c [label="process(1)"];
c=>c [label="process(2)"];
...;
c=>c [label="process(n)"];
c=>c [label="process(END)"];
a<<=c [label="callback()"];
--- [label="If more to run", ID="*"];
a->a [label="next()"];
a->c [label="ac()"];
b<-c [label="cb(TRUE)"];
b->b [label="stalled(...)"];
a<-b [label="ab() = FALSE"];
}
Here are two examples of input and output for some standard SIP message flows:
Simple Call Flow
msc {
UAS1, UAC;
UAS1->UAC [label="INVITE"];
UAS1<-UAC [label="100 Trying"];
UAS1<-UAC [label="180 Ringing"];
--- [label="the client plays ringing"];
UAS1<-UAC [label="200 Ok"];
UAS1->UAC [label="ACK"];
...;
--- [label="the client hangs up"];
UAS1<-UAC [label="BYE"];
UAS1<-UAC [label="200 Ok"];
}
Alice calls Bob with Intermediary Proxies
msc {
Alice, P1, P2, Bob;
Alice->P1 [label="INVITE"];
Alice<-P1 [label="100 Trying"];
P1->P2 [label="INVITE"];
P1<-P2 [label="100 Trying"];
P2->Bob [label="INVITE"];
P2<-Bob [label="100 Trying"];
P2<-Bob [label="180 Ringing"];
P1<-P2 [label="180 Ringing"];
Alice<-P1 [label="180 Ringing"];
--- [label="Alice's client plays ringing"];
...;
--- [label="Bob answers"];
P2<-Bob [label="200 Ok"];
P1<-P2 [label="200 Ok"];
Alice<-P1 [label="200 Ok"];
Alice->P1 [label="ACK"];
P1->P2 [label="ACK"];
P2->Bob [label="ACK"];
--- [label="two way media"];
...;
--- [label="Bob hangs up"];
P2<-Bob [label="BYE"];
P2->Bob [label="200 Ok"];
P1<-P2 [label="BYE"];
P1->P2 [label="200 Ok"];
Alice<-P1 [label="BYE"];
Alice->P1 [label="200 Ok"];
}
See also
- Message Sequence Chart
- Doxygen
- Sphinx (documentation generator)
- GraphViz for similar software for directed graphing
- PlantUML
External links
This article is issued from Wikipedia - version of the 9/7/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.