What is the "error_" for?
When you call a command, that command returns error type.
The command return value can tell you
- "there was no error"
- "error, you did something wrong"
- "error, I did something wrong"
- "error, I am not turned on"
- "error, argument was wrong"
.... etc
'error_t' is for telling you what kind of error has happened.
2. I cann't unstand the sentences:
SUCCESS was a non-zero error code in TinyOS 1.x, while FAIL was
non-zero.
In TinyOS 2.x, SUCCESS is equal to a zero error code, while other
error codes are non-zero.
in t1, SUCCESS==1, FAIL==0.
in t2, SUCCESS==0, FAIL==1..... and 2,3,4,etc are also error types.
Thanks
- jpaek
--
Jeongyeup Paek
Ph.D. student
Embedded Networks Laboratory
Department of Computer Science
University of Southern California
http://enl.usc.edu/~jpaek
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