Re: [patch] New thread test to exercise Daniel's Patch

[Jeff Johnston <jjohnstn@redhat.com>]

[-- Attachment #1: Type: text/plain, Size: 536 bytes --]

Daniel Jacobowitz wrote:
> On Mon, Mar 29, 2004 at 04:04:00PM -0500, Jeff Johnston wrote:
> 
>>Ok, I had the thread checks in the Continue test.  If I change it to the 
>>way above, now I get 3 "Process no longer exists "messages but the test 
>>completes. :(
>>
>>I'm really starting to hate these test macros.  What is the reasoning 
>>behind avoiding send_gdb / gdb_expect?
> 
> 
> They don't automatically handle things like internal errors,
> disconnects, et cetera.  Want to post your current version and I'll
> give it a try?
> 

[-- Attachment #2: manythreads.c --]
[-- Type: text/plain, Size: 664 bytes --]

#include <pthread.h>
#include <stdio.h>

void *
thread_function (void *arg)
{
  int x = (int)arg;

  printf ("Thread <%d> executing\n", x);

  return NULL;
}

int 
main (int argc, char **argv)
{
  pthread_attr_t attr;
  pthread_t threads[256];
  int i, j;

  pthread_attr_init (&attr);

  /* Create a ton of quick-executing threads, then wait for them to
     complete.  */
  for (i = 0; i < 1000; ++i) 
    {
      for (j = 0; j < 256; ++j)
	{
	  pthread_create (&threads[j], &attr, thread_function, 
			  (void *)(i * 1000 + j));
	}

      for (j = 0; j < 256; ++j)
	{
	  pthread_join (threads[j], NULL);
	}
    }

  pthread_attr_destroy (&attr);

  return 0;
}

[-- Attachment #3: manythreads.exp --]
[-- Type: text/plain, Size: 3495 bytes --]

# manythreads.exp -- Expect script to test stopping many threads
# Copyright (C) 2004 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

# This file was written by Jeff Johnston. (jjohnstn@redhat.com)

if $tracelevel then {
	strace $tracelevel
}

set prms_id 0
set bug_id 0

set testfile "manythreads"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}

if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } {
    return -1
}

gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}
gdb_test "set print sevenbit-strings" ""
runto_main

# We'll need this when we send_gdb a ^C to GDB.  Need to do it before we
# run the program and gdb starts saving and restoring tty states.
# On Ultrix, we don't need it and it is really slow (because shell_escape
# doesn't use vfork).
if ![istarget "*-*-ultrix*"] then {
    gdb_test "shell stty intr '^C'" ""
}

gdb_test_multiple "continue" "first continue" {
  -re "ERROR:.*$gdb_prompt $" {
    fail "$message"
  }
  -re "Continuing" {
    pass "$message"
  }
}

# Send a Ctrl-C and verify that we can do info threads and continue
after 1000 {send_gdb "\003"}
gdb_test_multiple "" "stop threads 1" {
  -re "\\\[New thread \[^\]\]*\\\]\r\n" {
    exp_continue
  }
  -re "\\\[Thread \[^\]\]* exited\\\]\r\n" {
    exp_continue
  }
  -re "Thread.*executing\r\n" {
    exp_continue
  }
  -re "Program received signal SIGINT.*$gdb_prompt $"
    {
      pass "$message"
    }
  timeout
    {
      fail "$message (timeout)"
    }
}

gdb_test "info threads" ".*1 Thread.*.LWP.*"

gdb_test_multiple "continue" "second continue" {
  -re "ERROR:.*$gdb_prompt $" {
    fail "$message"
  }
  -re "Continuing" {
    pass "$message"
  }
}

# Send another Ctrl-C and verify that we can do info threads and quit
after 1000 {send_gdb "\003"}
gdb_test_multiple "" "stop threads 2" {
  -re "\\\[New thread \[^\]\]*\\\]\r\n" {
    exp_continue
  }
  -re "\\\[Thread \[^\]\]* exited\\\]\r\n" {
    exp_continue
  }
  -re "Thread.*executing\r\n" {
    exp_continue
  }
  -re "Program received signal SIGINT.*$gdb_prompt $"
    {
      pass "stop threads 2"
    }
  timeout
    {
      fail "stop threads 2 (timeout)"
    }
} 

gdb_test_multiple "quit" "GDB exits after stopping multithreaded program" {
    -re "The program is running.  Exit anyway\\? \\(y or n\\) $" {
        gdb_test_multiple "y" "$message" {
          eof {
            pass "GDB exits after stopping multithreaded program"
          }
        }
    }
    eof {
        pass "GDB exits after stopping multithreaded program"
    }
    timeout {
        fail "GDB exits after stopping multithreaded program (timeout)"
    }
}