Table of contents
gfclrh_c ( GF, clear interrupt signal handler status )
void gfclrh_c ( void )
Clear the interrupt signal handler status, so that future calls
to gfbail_c will indicate no interrupt was received.
None. This routine operates by side effects; see -Particulars
This routine clears the interrupt signal handler status maintained
by the GF subsystem. Calling this routine causes the GF interrupt
signal receipt indicator function gfbail_c to return SPICEFALSE
until the next interrupt signal is received by a signal handler
established by the GF system.
User applications that use default GF interrupt handling should call
this routine after processing an interrupt signal.
1) The code fragment below is from an example program in
the header of gfocce_c. The code includes a search,
a call to gfbail_c, which is made to determine whether
an interrupt signal was received, and a call to
gfclrh_c to clear the interrupt signal status.
Turn on interrupt handling and progress reporting.
bail = SPICETRUE;
rpt = SPICETRUE;
Perform the search.
gfocce_c ( "ANY",
"MOON", "ellipsoid", "IAU_MOON",
"SUN", "ellipsoid", "IAU_SUN",
"LT", "EARTH", CNVTOL,
gfstep_c, gfrefn_c, rpt,
gfrepi_c, gfrepu_c, gfrepf_c,
bail, gfbail_c, &cnfine,
if ( gfbail_c() )
Clear the CSPICE interrupt indication. This is
an essential step for programs that continue
running after an interrupt; gfbail_c will
continue to return SPICETRUE until this step
has been performed.
We've trapped an interrupt signal. In a realistic
application, the program would continue operation
from this point. In this simple example, we simply
display a message and quit.
printf ( "\nSearch was interrupted.\n\nThis message "
"was written after an interrupt signal\n"
"was trapped. By default, the program "
"would have terminated \nbefore this message "
"could be written.\n\n" );
1) This routine has no visible effect on operation of user applications
unless GF interrupt handling is enabled and gfbail_c is used as
the interrupt signal receipt indicator.
N.J. Bachman (JPL)
J. Diaz del Rio (ODC Space)
L.S. Elson (JPL)
-CSPICE Version 1.0.1, 05-AUG-2021 (JDR)
Edited the header to comply with NAIF standard.
-CSPICE Version 1.0.0, 05-FEB-2009 (NJB) (LSE)
GF clear interrupt signal status