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# Copyright (C) 97, 98, 1999 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, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  

# Please email any bugs, comments, and/or additions to this file to:
# DejaGnu@cygnus.com

#
# Searches in the appropriate place (the board_info array) for the specified
# information.
#
proc board_info { machine op args } {
    global target_info
    global board_info

    verbose "board_info $machine $op $args" 3

    if [info exists target_info($machine,name)] {
        set machine $target_info($machine,name);
    }
    if { $op == "exists" } {
        if { [llength $args] == 0 } {
            if [info exists board_info($machine,name)] {
                return 1;
            } else {
                return 0;
            }
        } else {
            if [info exists "board_info($machine,[lindex $args 0])"] {
                return 1;
            } else {
                return 0;
            }
        }
    }
    if { [llength $args] == 0 } {
        verbose "getting $machine $op" 3
        if [info exists board_info($machine,$op)] {
            return $board_info($machine,$op);
        } else {
            return ""
        }
    }
    return "";
}

proc target_info { op args } {
    return [eval "board_info target \"$op\" $args"];
}

proc host_info { op args } {
    return [eval "board_info host \"$op\" $args"];
}

#
# Fill in ENTRY with VALUE for the current board being defined.
#
proc set_board_info { entry value } {
    global board_info board;

    if ![info exists board_info($board,$entry)] {
        set board_info($board,$entry) $value;
    }
}

#
# Fill in ENTRY with VALUE for the current target.
#
proc set_currtarget_info { entry value } {
    global board_info;

    set board [target_info name];

    if ![info exists board_info($board,$entry)] {
        set board_info($board,$entry) $value;
    }
}

#
# Unset ENTRY for the current board being defined.
#
proc unset_board_info { entry } {
    global board_info board;

    if [info exists board_info($board,$entry)] {
        unset board_info($board,$entry);
    }
}

#
# Unset ENTRY for the current board being defined.
#
proc unset_currtarget_info { entry } {
    global board_info;

    set board [target_info name];

    if [info exists board_info($board,$entry)] {
        unset board_info($board,$entry);
    }
}