pSOSystem System Calls - Read

tm_set pSOS+ System Calls
Return Value
Error Codes
Notes
This system call returns 0 on success, or an error code on failure.
Hex Mnemonic Description
0x48 ERR_ILLDATE Date input out of range.
0x49 ERR_ILLTIME Time input out of range.
0x4A ERR_ILLTICKS Ticks input out of range.
1. This implementation accurately reflects leap years and the current century. For
example, the value 0088 means 88 A.D., not 1988 A.D.
2. The pSOS+ kernel maintains a flag that indicates if the system time has been
initialized since the last system reboot. Startup clears the flag, and tm_set()
sets the flag.
3. If the input values are accurate when this call is made, the actual
synchronization of the system clock depends on such variables as the execution
time of tm_set() and the moment it arrives between two ticks. The accuracy is
within one or two ticks.
4. tm_set() has no effect on tasks that are either timing out or waiting after
tm_wkafter() or tm_evafter() calls because these pause intervals are in
clock ticks, not clock time.
Multiprocessor Considerations
None. This call can only be directed at the local processor node.
1-176 pSOSystem System Calls