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INT8U OSSemQuery (OS_EVENT *pevent, OS_SEM_DATA *pdata);
Description
- Obtains information about a semaphore.
Parameters
- pevent
- Pointer to the desired semaphore's event control block
- pdata
- Pointer to a data structure that will hold information about the semaphore.
Return value
- OS_NO_ERR
- The call was successful and the message was sent.
- OS_ERR_EVENT_TYPE
- Attempting to obtain data from a non semaphore.
- OS_ERR_PEVENT_NULL
- If the
peventparameter is aNULLpointer.
Library
- OS_SEM.C
See also
- OSSemAccept, OSSemCreate, OSSemPend, OSSemPost
| 020-0059 Rev. D | << Previous | Next >> | µC/OS-II |