1 files changed, 123 insertions, 0 deletions
diff --git a/sys/qpoe/qpiogetfil.x b/sys/qpoe/qpiogetfil.x
new file mode 100644
index 00000000..c653f6b5
--- /dev/null
+++ b/sys/qpoe/qpiogetfil.x
@@ -0,0 +1,123 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<mach.h>
+include	"qpoe.h"
+include	"qpio.h"
+
+# QPIO_GETFILTER -- Get the current filtering parameters governing event
+# extraction via QPIO.  These are the QPIO parameters (region mask, blocking
+# factor, coordinate system, etc.) plus the event attribute filter.  We leave
+# it up to QPEX to reconstruct the EAF to allow for any dynamic edits which
+# may have taken place, e.g., via qpio_setfilter.
+
+int procedure qpio_getfilter (io, outstr, maxch)
+
+pointer	io			#I QPIO descriptor
+char	outstr[maxch]		#O where to put the filter text
+int	maxch			#I max chars out
+
+pointer	sp, buf, bp
+int	op, dtype[2], offset[2], i
+int	sizeof(), gstrcpy(), qpex_getfilter()
+define	ovfl_ 91
+
+begin
+	call smark (sp)
+	call salloc (buf, SZ_TEXTBUF, TY_CHAR)
+
+	op = 1
+
+	# Report on QPIO parameters first.
+
+	# Parameter name.
+	call sprintf (Memc[buf], SZ_TEXTBUF, "param=%s,")
+	    call pargstr (Memc[IO_PARAM(io)])
+	op = op + gstrcpy (Memc[buf], outstr[op], maxch-op+1)
+	if (op > maxch)
+	    goto ovfl_
+
+	# Coordinate system.
+	dtype[1] = IO_EVXTYPE(io);  dtype[2] = IO_EVYTYPE(io)
+	offset[1] = IO_EVXOFF(io);  offset[2] = IO_EVYOFF(io)
+
+	call sprintf (Memc[buf], SZ_TEXTBUF, "key=(%c%d,%c%d),")
+	do i = 1, 2 {
+	    switch (dtype[i]) {
+	    case TY_SHORT:
+		call pargi ('s')
+	    case TY_INT:
+		call pargi ('i')
+	    case TY_LONG:
+		call pargi ('l')
+	    case TY_REAL:
+		call pargi ('r')
+	    case TY_DOUBLE:
+		call pargi ('d')
+	    default:
+		call pargi ('?')
+	    }
+
+	    call pargi (offset[i] * sizeof(dtype[i]) * SZB_CHAR)
+	}
+
+	op = op + gstrcpy (Memc[buf], outstr[op], maxch-op+1)
+	if (op > maxch)
+	    goto ovfl_
+
+	# Blocking factor for generating pixels.
+	call sprintf (Memc[buf], SZ_TEXTBUF, "block=%0.4gx%0.4g, ")
+	    call pargr (IO_XBLOCK(io))
+	    call pargr (IO_YBLOCK(io))
+	op = op + gstrcpy (Memc[buf], outstr[op], maxch-op+1)
+	if (op > maxch)
+	    goto ovfl_
+
+	# Region mask, if any.
+	if (Memc[IO_MASK(io)] != EOS) {
+	    call sprintf (Memc[buf], SZ_TEXTBUF, "mask=%s,")
+		call pargstr (Memc[IO_MASK(io)])
+	    op = op + gstrcpy (Memc[buf], outstr[op], maxch-op+1)
+	    if (op > maxch)
+		goto ovfl_
+	}
+
+	# Debug level, if debug messages enabled.
+	if (IO_DEBUG(io) > 0) {
+	    call sprintf (Memc[buf], SZ_TEXTBUF, "debug=%d,")
+		call pargi (IO_DEBUG(io))
+	    op = op + gstrcpy (Memc[buf], outstr[op], maxch-op+1)
+	    if (op > maxch)
+		goto ovfl_
+	}
+
+	# Noindex flag, if enabled.
+	if (IO_NOINDEX(io) > 0) {
+	    call sprintf (Memc[buf], SZ_TEXTBUF, "noindex=%b,")
+		call pargi (IO_NOINDEX(io))
+	    op = op + gstrcpy (Memc[buf], outstr[op], maxch-op+1)
+	    if (op > maxch)
+		goto ovfl_
+	}
+
+	# Event attribute filter.
+	if (IO_EX(io) != NULL) {
+	    bp = buf + gstrcpy ("filter=(", Memc[buf], SZ_TEXTBUF)
+	    bp = bp + qpex_getfilter (IO_EX(io), Memc[bp], SZ_TEXTBUF-8)
+	    Memc[bp] = ')';  bp = bp + 1
+	    Memc[bp] = EOS
+	    op = op + gstrcpy (Memc[buf], outstr[op], maxch-op+1)
+	    if (op > maxch)
+		goto ovfl_
+	} else if (op > 1) {
+	    # Clobber trailing comma.
+	    op = op - 1
+	    outstr[op] = EOS
+	}
+
+	call sfree (sp)
+	return (op - 1)
+ovfl_
+	call sfree (sp)
+	outstr[maxch+1] = EOS
+	return (maxch)
+end