QNX RTOS v4 Knowledge Base
QNX RTOS v4 Knowledge Base
Title |
errno: Function not implemented |
Ref. No. |
QNX.000009475 |
Category(ies) |
Development |
Issue |
In QNX4, what could be causing the following error message? x09errno: Function not implemented
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Solution |
If the errno "Function not implemented" is returned from a library call where it is not expected, i.e. the function being used doesn't specify this as a possible error, the wrong message is being sent the Manager.
For example, the code if ( mq_notify(my_mq, &event) < 0 ) perror("mq_notify");
returns: x09mq_notify: Function not implemented
Verify that the file descriptor being used 'my_mq', actually represents an open file descriptor to the Mqueue manager process. |
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