# start_stop.exp -- Expect script to test a threaded pgm which has terminating threads
# Copyright (C) 1992 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:
# bug-gdb@prep.ai.mit.edu

# Comment out for now, since this test is (sometimes?) hanging on 11.0
#
# return 0

# use this to debug:
#
#log_user 1

# Thread stuff is _slow_; prepare for long waits.
#
# Further, this test has some "null" lines designed
# to consume output from gdb that was too late to be
# matched (sequence is "gdb_test" sends; timeout and
# on to next send; result finally comes in; mismatch).
#
# The null command is 'gdb_test "p \$pc" ".*" ""'
# NOTE: this command undoes any up/down stuff!
#
proc pre_timeout {} {
    global timeout

    set timeout [expr "$timeout + 100"]
}

proc post_timeout {} {
    global timeout
    global oldtimeout

    set timeout $oldtimeout
    gdb_test "p \$pc" ".*" ""
}

if $tracelevel then {
    strace $tracelevel
}

if { ![istarget "hppa*-*-hpux10.30"] && ![istarget "hppa*-*-hpux11.*"] } {
    verbose "HPUX thread test ignored for non-hppa or pre-HP/UX-10.30 targets."
    return 0
}

set testfile start-stop
set srcfile ${srcdir}/${subdir}/${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}

if [get_compiler_info ${binfile}] {
    return -1
}

# To build the executable we need to link against the thread library.
#
#     cc -Ae -g -o start-stop -lpthread start-stop.c
#
#compile "${srcfile} -Ae -g -lpthread -o ${binfile}"

if {$gcc_compiled == 0} {
    set additional_flags "additional_flags=-Ae"
} else {
    set additional_flags ""
}

if  { [gdb_compile "${srcdir}/${subdir}/${testfile}.c" "${binfile}.o" object [list debug $additional_flags]] != "" } {
     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
}
remote_exec build "ld /usr/ccs/lib/crt0.o ${binfile}.o -lcl -lpthread  -lc /opt/langtools/lib/end.o -o ${binfile}"


gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}
if ![runto_main] then {
   fail "Can't run to main"
   return 0
}

set oldtimeout $timeout
#set timeout [expr "$timeout + 200"]
set oldverbose $verbose
#set verbose 40

gdb_test "b do_pass" ".*" "set do_pass bp"
gdb_test "c" ".*Breakpoint.*do_pass.*" "run to do_pass"

# Should be only one thread.
#
pre_timeout
send_gdb "info thread\n"
gdb_expect {
    -re ".*2 process.*$gdb_prompt $" { fail "Old code for 'thread.c'" }
    -re ".*2 system thread.*1 sys.*$gdb_prompt $" { fail "Too many threads" }
    -re ".*1 system thread.*$gdb_prompt $" { pass "Just one thread" }
    -re ".*$gdb_prompt $" { fail "no thread info" }
    timeout { fail "timeout on info thread 1" }
}
post_timeout

# Run to a point after the thread creates (105 is just
# before the first join).
#
# The "== Thread" stuff is output from the computing threads.
#
gdb_test "b 105" ".*Breakpoint.*" "set 105 bp"

pre_timeout
send_gdb "c\n"
gdb_expect {
    -re ".*== Thread.*== Thread.*== Thread.*105.*$gdb_prompt $" {
        pass "new threads created and ended"
        set threads_exist 0
    }
    -re ".*== Thread.*== Thread.*105.*$gdb_prompt $" {
        pass "new threads created and ended"
        set threads_exist 1
    }
    -re ".*== Thread.*.*105.*$gdb_prompt $" {
        pass "new threads created and ended"
        set threads_exist 2
    }
    -re ".*New thread.*New th.*New th.*105.*$gdb_prompt $" { 
        pass "new threads created" 
        set threads_exist 3
    }
    -re ".*Breakpoint.*105.*$gdb_prompt $" {
        set threads_exist 0
        fail "didn't see any threads" 
    }
    -re ".*$gdb_prompt $" {
        set threads_exist 0
        fail "didn't even hit bp"
    }
    timeout { 
        set threads_exist -1 
        fail "timeout on continue" 
    }
}

# Look at the threads again.  We expect that some of
# the threads may have already finished execution.
#
send_gdb "info thread\n" 
gdb_expect {
    -re ".*4.*3.*2.* 1.*thread.*$gdb_prompt $" { set seen_threads 3 }
    -re ".*3.*2.* 1.*thread.*$gdb_prompt $"    { set seen_threads 2 }
    -re ".*2.* 1.*thread.*$gdb_prompt $"       { set seen_threads 1 }
    -re ".* 1.*thread.*$gdb_prompt $"          { set seen_threads 0 }
    -re ".*$gdb_prompt $"                      { set seen_threads 0 }
    timeout          { 
        set seen_threads -10
        fail "timeout on second info thread" 
    }
}
post_timeout

if { $seen_threads == $threads_exist } {
    pass "saw all threads that existed"
} else {
    if { $seen_threads > $threads_exist } {
        fail "may have seen threads that didn't finish exiting yet"
    } else {
        fail "didn't see live threads"
    }
}

gdb_test "cle"  ".*Deleted.*" "del bp at 105"

# Check that threads are being consumed at the join call.
# We expect to join three times.  If we ever see the bp at
# 111, we've gone too far.
#
gdb_test "b 106" ".*Breakpoint.*106.*" "set bp at 106"
gdb_test "b 111" ".*Breakpoint.*111.*" "set bp at 111"

# This one is sure: we're already in the loop.
#
gdb_test "c"    ".*Breakpoint.*106.*" "hit bp at 106 1st time, 2 left"

# Did we go around the loop again?
#
send_gdb "c\n"
gdb_expect {
    -re ".*Breakpoint.*111.*" { 
        fail "didn't join right 1" 
        gdb_test "cle" ".*" ""
    }
    -re ".*Breakpoint.*106.*" { 
        pass "hit bp at 106 2nd time, 1 left" 
        send_gdb "c\n" 
        gdb_expect {
            -re ".*Breakpoint.*111.*" { 
                 fail "didn't join right 2" 
                 gdb_test "cle" ".*" ""
            }
            -re ".*Breakpoint.*106.*" { 
                 pass "hit bp at 106 3rd time, 0 left"
                 gdb_test "cle" ".*" ""
                 gdb_test "c" ".*Breakpoint.*111.*" ""
                 gdb_test "cle" ".*" ""
            }
            timeout { fail "timeout going around the loop"}
        }
    }
    timeout { fail "timeout getting to 106"}
}

# Should only be one thread now.
#
pre_timeout
send_gdb "info thread\n"
gdb_expect {
    -re ".*2 system thread.*1 sys.*$gdb_prompt $" { fail "Too many threads" }
    -re ".*1 system th.*$gdb_prompt $"            { pass "Just one thread"  }
    -re ".*$gdb_prompt $"     { pass "One thread shown as no threads, ok" }
    timeout               { fail "timeout third info thread" }
}
post_timeout

#============================= Begin pass 2 ===========
#
# Ok, go around again
#
gdb_test "c" ".*Breakpoint.*do_pass.*" "hit do_pass bp again 2"
gdb_test "b 105" ".*Breakpoint.*" "set 105 bp 2"

pre_timeout
send_gdb "c\n"
gdb_expect {
    -re ".*== Thread.*== Thread.*== Thread.*$gdb_prompt $" {
        pass "new threads created and ended 2"
        set threads_exist 0
    }
    -re ".*== Thread.*== Thread.*$gdb_prompt $" {
        pass "new threads created and ended 2"
        set threads_exist 1
    }
    -re ".*== Thread.*$gdb_prompt $" {
        pass "new threads created and ended 2"
        set threads_exist 2
    }
    -re ".*New system thread.*New sys.*New.*105.*$gdb_prompt $" { 
        pass "new threads created 2" 
        set threads_exist 3
    }
    timeout { 
        set threads_exist -1 
        fail "timeout on continue 2" 
    }
}

# Look at the threads again.  We expect that some of
# the threads may have already finished execution.
#
send_gdb "info thread\n" 
gdb_expect {
    -re ".*4.*3.*2.* 1.*thread.*$gdb_prompt $" { set seen_threads 3 }
    -re ".*3.*2.* 1.*thread.*$gdb_prompt $"    { set seen_threads 2 }
    -re ".*2.* 1.*thread.*$gdb_prompt $"       { set seen_threads 1 }
    -re ".* 1.*thread.*$gdb_prompt $"          { set seen_threads 0 }
    -re ".*$gdb_prompt $"                      { set seen_threads 0 }
    timeout          { 
        set seen_threads -10
        fail "timeout on second info thread 2" 
    }
}
post_timeout

if { $seen_threads == $threads_exist } {
    pass "saw all threads that existed"
} else {
    if { $seen_threads > $threads_exist } {
        fail "may have seen threads that didn't finish exiting yet 2"
    } else {
        fail "didn't see live threads 2"
    }
}

gdb_test "cle"  ".*Deleted.*" "del bp at 105 2"

# Check that threads are being consumed at the join call.
# We expect to join three times.  If we ever see the bp at
# 111, we've gone too far.
#
gdb_test "b 106" ".*Breakpoint.*106.*" "set bp at 106 2"
gdb_test "b 111" ".*Breakpoint.*111.*" "set bp at 111 2"

# This one is sure: we're already in the loop.
#
gdb_test "c"  ".*Breakpoint.*106.*" "hit bp at 106 1st time, 2 left 2"

# Did we go around the loop again?
#
send_gdb "c\n"
gdb_expect {
    -re ".*Breakpoint.*111.*" { 
        fail "didn't join right 1, pass 2" 
        gdb_test "cle" ".*" ""
    }
    -re ".*Breakpoint.*106.*" { 
        pass "hit bp at 106 2nd time, 1 left, pass 2" 
        send_gdb "c\n" 
        gdb_expect {
            -re ".*Breakpoint.*111.*" { 
                 fail "didn't join right 2, pass 2" 
                 gdb_test "cle" ".*" ""
            }
            -re ".*Breakpoint.*106.*" { 
                 pass "hit bp at 106 3rd time, 0 left, pass 2"
                 gdb_test "cle" ".*" ""
                 gdb_test "c" ".*Breakpoint.*111.*" ""
                 gdb_test "cle" ".*" ""
            }
            timeout { fail "timeout going around loop, pass 2"}
        }
    }
    timeout { fail "timeout continue to 106, pass 2"}
}

# Should only be one thread now.
#
pre_timeout
send_gdb "info thread\n"
gdb_expect {
    -re ".*2 system thread.*1 sys.*$gdb_prompt $" { fail "Too many threads, pass 2" }
    -re ".*1 system thread.*$gdb_prompt $" { pass "Just one thread, pass 2" }
    -re ".*$gdb_prompt $" { pass "One thread shown as no threads, ok, pass 2" }
    timeout { fail "timeout last info thread, pass 2" }
}
post_timeout

# Done!
#
gdb_exit

set timeout $oldtimeout
set verbose $oldverbose

# execute_anywhere "rm -f ${binfile}"
#
return 0