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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <plset.h>
include <plio.h>
# PL_SAVEF -- Store a mask in external format in a binary file. This simple
# code permits only one mask per file; more sophisticated mask storage
# facilities are planned. These will likely obsolete this routine.
procedure pl_savef (pl, fname, title, flags)
pointer pl #I mask descriptor
char fname[ARB] #I file name
char title[ARB] #I mask title
int flags #I save flags
int fd, masklen, buflen, junk
pointer sp, fullname, extn, bp, sv
errchk open, pl_save, write, mfree
int open(), fnextn(), strlen(), pl_save()
bool strne()
begin
call smark (sp)
call salloc (sv, LEN_SVDES, TY_STRUCT)
call salloc (extn, SZ_FNAME, TY_CHAR)
call salloc (fullname, SZ_PATHNAME, TY_CHAR)
# Add the ".pl" filename extension if not already present.
call strcpy (fname, Memc[fullname], SZ_PATHNAME)
junk = fnextn (fname, Memc[extn], SZ_FNAME)
if (strne (Memc[extn], "pl"))
call strcat (".pl", Memc[fullname], SZ_PATHNAME)
# The update flag is required to allow overwriting an existing mask.
if (and (flags, PL_UPDATE) != 0)
iferr (call delete (Memc[fullname]))
;
# Encode the mask.
bp = NULL
masklen = pl_save (pl, bp, buflen, flags)
# Set up the savefile descriptor.
SV_MAGIC(sv) = PLIO_SVMAGIC
SV_TITLELEN(sv) = strlen (title) + 1
SV_MASKLEN(sv) = masklen
# Write the savefile.
fd = open (Memc[fullname], NEW_FILE, BINARY_FILE)
call miiwritei (fd, Memi[sv], LEN_SVDES)
call miiwritec (fd, title, SV_TITLELEN(sv))
call write (fd, Mems[bp], masklen * SZ_SHORT)
call mfree (bp, TY_SHORT)
call close (fd)
call sfree (sp)
end
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