| SC_CHECKPOINT(2) | SC_CHECKPOINT(2) | 
#include <sc.h>
int sc_checkpoint( void );
sc_checkpoint() takes a new checkpoint and returns when
the checkpoint is done. Or, when the program is restarted from the
checkpoint, the sc_chekpoint function returns also.
sc_checkpoint() returns 0 if it succeeds
or returns the following error number:
EIO