# Copyright 2008 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.  

#
# Test asynchronous Machine Interface (MI) responses.
#

# This currently only works with native linux and the async remote protocol.
if { !([isnative] && [istarget *-linux*]) \
     && (![target_info exists gdb_protocol] \
         || [target_info gdb_protocol] != "async") } then {
  return
}

# The plan is for async mode to become the default but toggle for now.
set saved_gdbflags $GDBFLAGS
set GDBFLAGS [concat $GDBFLAGS " -ex \"set target-async on\""]

load_lib mi-support.exp

gdb_exit
if [mi_gdb_start] {
    continue
}

set testfile "basics"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}
if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DFAKEARGV}] != "" } {
     untested mi-async.exp
     return -1
}

mi_delete_breakpoints
mi_gdb_reinitialize_dir $srcdir/$subdir
mi_gdb_load ${binfile}

# mi_gdb_test cannot be used for asynchronous commands because there are
# two prompts involved and this can lead to a race condition.

proc linux_async_tests {} {
    global mi_gdb_prompt
    global hex

    set line_main_head     [gdb_get_line_number "main ("]
    set line_main_body     [expr $line_main_head + 2]
    set line_main_next     [expr $line_main_head + 3]

    mi_send_resuming_command_raw "start" "start: send"
    mi_expect_stop "breakpoint-hit" "main" "" ".*basics.c" "$line_main_body" { "" "disp=\"del\"" } "start: stop"

    mi_send_resuming_command_raw "next" "CLI next: send"
    mi_expect_stop "end-stepping-range" "main" "" ".*basics.c" "$line_main_next" "" "CLI next: stop"

    mi_gdb_test "-exec-interrupt" \
	"" \
	""

    mi_send_resuming_command_raw "start" "restart: send"
    mi_expect_stop "breakpoint-hit" "main" "" ".*basics.c" "$line_main_body" { "" "disp=\"del\"" } "restart: stop"
}


linux_async_tests

mi_gdb_exit

set GDBFLAGS $saved_gdbflags

return 0