Guardian Programming Reference Summary for C
Functions Summary (A-C)
Guardian Programming Reference Summary for C—522630-001
4-15
CHECKPOINTX 
Is called by a primary process to send information about the primary process’s current 
executing state to the backup process.
This passive backup procedure is not supported in C programs. For a comparison of 
active backup and passive backup, refer to the Guardian Programmer’s Guide.
CHECKRESIZESEGMENT 
Complements the RESIZESEGMENT procedure.
This passive backup procedure is not supported in C programs. For a comparison of 
active backup and passive backup, refer to the Guardian Programmer’s Guide.
CHECKSETMODE 
Allows a primary process of a NonStop process pair to propagate SETMODE operations 
to the backup process of the pair.
This passive backup procedure is not supported in C programs. For a comparison of 
active backup and passive backup, refer to the Guardian Programmer’s Guide.
CHECKSWITCH 
Is called by a primary process to interchange the duties of the primary and backup 
processes.
This passive backup procedure is not supported in C programs. For a comparison of 
active backup and passive backup, refer to the Guardian Programmer’s Guide.
CHILD_LOST 
Examines a system message to determine whether a specified process or process pair has 
been lost.
return value
#include <cextdecs(CHILD_LOST_ )>
short CHILD_LOST_ ( char *message /* i */
 ,short length /* i */
  ,short *processhandle );/* i */
0 = Process or process pair is not lost.
1= Reserved.
2 = Parameter error.










