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# Copyright (C) 1993, 1994, 1996, 1997, 1998 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

# Please email any bugs, comments, and/or additions to this file to:

# bug-dejagnu@prep.ai.mit.edu

#

# sim_load -- load the program and execute it

#

# See default.exp for explanation of arguments and results.

#

proc sim_spawn { dest cmdline args } {

    if ![board_info $dest exists sim] {

        perror "no simulator defined for [board_info $dest name]"

        exit 1

    } else {

        set sim [board_info $dest sim];

    }

    if [board_info $dest exists sim,options] {

        set simflags [board_info $dest sim,options]

    } else {

        set simflags ""

    }

    if ![is_remote host] {

        if { [which $sim] == 0 } {

            verbose -log "Simulator $sim missing." 3

            return -1;

        }

    }

    if [is_remote host] {

        # download the program to remote.

        # we're assuming the program is the first word in the command.

        # FIXME: "prog < infile" won't work until we download infile.

        set prog [lindex $cmdline 0]

        set prog [remote_download host $prog a.out];

        set cmdline [lreplace $cmdline 0 0 $prog]

    }

    return [eval remote_spawn host \{ $sim $simflags $cmdline \} $args];

}

proc sim_wait { dest timeout } {

    return [remote_wait host $timeout];

}

proc sim_load { dest prog args } {

    set inpfile ""

    if { [llength $args] > 1 } {

        if { [lindex $args 1] != "" } {

            set inpfile "[lindex $args 1]"

        }

    }

    if ![file exists $prog] then {

        perror "sim.exp: $prog to be downloaded does not exist."

        verbose -log "$prog to be downloaded does not exist." 3

        return [list "untested" ""];

    }

    if [board_info $dest exists sim_time_limit] {

        set sim_time_limit [board_info $dest sim_time_limit];

    } else {

        set sim_time_limit 240

    }

    set output "";

    # Run the program with a limited amount of real time. While

    # this isn't as nice as limiting the amount of CPU time, it

    # will have to do.

    if { $inpfile != "" } {

        set res [remote_spawn target "${prog} < $inpfile" "readonly"];

    } else {

        set res [remote_spawn target "${prog}"];

    }

    if { $res <= 0 } {

        return [list "fail" "remote_spawn failed"];

    }

    set state [remote_wait target $sim_time_limit];

    set status [lindex $state 0];

    set output [lindex $state 1];

    verbose "Output is $output";

    set status2 [check_for_board_status output];

    if { $status2 >= 0 } {

        set status $status2

    }

    # FIXME: Do we need to examine $status?

    # Yes, we do--what if the simulator itself gets an error and coredumps?

    verbose "Return status was: $status" 2

    if { $status == 0 } {

        set result "pass"

    } else {

        set result "fail"

    }

    return [list $result $output];

}

set_board_info protocol  "sim";

# By default, assume the simulator is slow.  This causes some tests

# to either be simplified or skipped completely.

set_board_info slow_simulator 1