[CSE]  Advanced Operating Systems 
 COMP9242 2002/S2 
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Next: IPC Timeout Specifications Up: 01-l4 Previous: IPC Result Status

IPC Result Condition Code

Condition code format:




ec
error code: ec\(\neq 0\) ==> IPC failed
consult the manual for the meaning of error codes
frequent reason: Cut message -- receiver's buffer was too small, not enough strings, etc.
Note: this value is also delivered as the return value of the call when using the C library interface
m
map bit: \(m=1\) ==> fpages were received

Other bits have to do with clans and chiefs, consult the manual for explanation.



Gernot Heiser 2002-08-07