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############################################################################
#
# File: strucget.icn
#
# Subject: Program to collect SP structures
#
# Author: Ralph E. Griswold
#
# Date: March 26, 2002
#
############################################################################
#
# This file is in the public domain.
#
############################################################################
#
# This program collects the structures in an SP and when the SP
# terminates, it saves them as an xencoded file. Records are not
# collected because they cannot be decoded in the absence of the
# appropriate record declaration.
#
# By keeping pointers to the structures in an SP, it assures that
# all structures produced by that program are intact at the time
# the SP terminates. Be aware, however, that some structures may
# have been "emptied" by the time the SP terminates, for example,
# by get(L).
#
# Saving the SP structure prevents them from being collected, which may
# affect SP performance or even behavior.
#
# The xencoded file is named <sp>.xcode there <sp> is the name of the
# SP as given on the command line.
#
############################################################################
#
# Requires: MT Icon and instrumentation
#
############################################################################
#
# Links: evinit, xcodes
#
############################################################################
link evinit
link xcodes
$include "evdefs.icn"
procedure main(args)
local mask, structs, name
name := args[1] | stop("*** no SP")
EvInit(args) | stop("*** cannot open SP")
variable("write", &eventsource) := -1 # turn off SP output
variable("writes", &eventsource) := -1
structs := set()
mask := cset(E_Lcreate || E_Rcreate || E_Screate || E_Tcreate)
while EvGet(mask) do
insert(structs, &eventvalue) # add new structure
xencoden(sort(structs), name || ".xcode") # save SP structures
end
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