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############################################################################
#
# File: em_setup.icn
#
# Subject: Procedures to set up execution monitors
#
# Author: Ralph E. Griswold
#
# Date: March 3, 1997
#
############################################################################
#
# This file is in the public domain.
#
############################################################################
#
# These procedures provide support for the routine parts of building
# Icon execution monitors, including what's necessary for them to
# run stand-alone as well as under the control of monitor coordinators
# like eve and vc.
#
# vis_setup(args[]) opens a window with attributes given
# by args[]
#
# em_setup(sp) loads sp as the program to be monitored
#
# context_setup(mask) returns table of graphics context for
# mask
#
# prog_name() returns the name of the source program
# for the SP set up by em_setup()
#
# em_end() hold visualization window open if (a)
# there is one and (b) monitoring is
# stand alone
#
############################################################################
#
# Requires: Version 9 MT Icon, instrumentation, and graphics
#
############################################################################
#
# Links: evinit, interact, typebind, graphics
#
############################################################################
#
# Includes: evdefs.icn
#
############################################################################
link evinit
link interact
link typebind
link graphics
$include "evdefs.icn"
global Coordination # if nonnull, vc is in charge
global Visualization # visualization window
global EventSource # vc's event source
procedure vis_setup(args[]) #: set up visualization window
Visualization := (WOpen ! args) |
stop("*** cannot open window for visualization")
return Visualization
end
procedure em_setup(sp) #: set up program to be monitored
local trash
trash := open("/dev/null", "w") |
stop("*** cannot open /dev/null")
EvInit(sp, , trash, trash) | stop("*** cannot load SP")
return
end
procedure context_setup(mask) #: table of graphics contexts for mask
return typebind(Visualization, mask)
end
procedure prog_name() #: name of monitored source program
return variable("&progname", EventSource) || ".icn"
end
procedure em_end() #: hold event monitoring for event at end
local back
back := WOpen("canvas=hidden", "bg=light gray")
if /Coordination then ExitNotice(back, "Normal termination of SP")
end
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