/* Copyright (C) 2003-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <dlfcn.h>

#include <errno.h>

#include <pthread.h>

#include <signal.h>

#include <semaphore.h>

#include <stdint.h>

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <pthreaddef.h>

#define THE_SIG SIGUSR1

/* The stack size can be overriden.  With a sufficiently large stack

   size, thread stacks for terminated threads are freed, but this does

   not happen with the default size of 1 MiB.  */

enum { default_stack_size_in_mb = 1 };

static long stack_size_in_mb;

#define N 10

static pthread_t th[N];

static int do_test (void);

#define TIMEOUT 5

#define TEST_FUNCTION do_test ()

#include "../test-skeleton.c"

#define CB(n) \

static void								      \

cb##n (void)								      \

{									      \

  if (th[n] != pthread_self ())						      \

    {									      \

      write_message ("wrong callback\n");				      \

      _exit (1);							      \

    }									      \

}

CB (0)

CB (1)

CB (2)

CB (3)

CB (4)

CB (5)

CB (6)

CB (7)

CB (8)

CB (9)

static void (*cbs[]) (void) =

{

  cb0, cb1, cb2, cb3, cb4, cb5, cb6, cb7, cb8, cb9

};

sem_t s;

pthread_barrier_t b;

#define TOTAL_SIGS 1000

int nsigs;

int

do_test (void)

{

  if (stack_size_in_mb == 0)

    stack_size_in_mb = default_stack_size_in_mb;

  if ((uintptr_t) pthread_self () & (TCB_ALIGNMENT - 1))

    {

      puts ("initial thread's struct pthread not aligned enough");

      exit (1);

    }

  if (pthread_barrier_init (&b, NULL, N + 1) != 0)

    {

      puts ("barrier_init failed");

      exit (1);

    }

  if (sem_init (&s, 0, 0) != 0)

    {

      puts ("sem_init failed");

      exit (1);

    }

  void *h = dlopen ("tst-tls3mod.so", RTLD_LAZY);

  if (h == NULL)

    {

      puts ("dlopen failed");

      exit (1);

    }

  void *(*tf) (void *) = dlsym (h, "tf");

  if (tf == NULL)

    {

      puts ("dlsym for tf failed");

      exit (1);

    }

  struct sigaction sa;

  sa.sa_handler = dlsym (h, "handler");

  if (sa.sa_handler == NULL)

    {

      puts ("dlsym for handler failed");

      exit (1);

    }

  sigemptyset (&sa.sa_mask);

  sa.sa_flags = 0;

  if (sigaction (THE_SIG, &sa, NULL) != 0)

    {

      puts ("sigaction failed");

      exit (1);

    }

  pthread_attr_t a;

  if (pthread_attr_init (&a) != 0)

    {

      puts ("attr_init failed");

      exit (1);

    }

  if (pthread_attr_setstacksize (&a, stack_size_in_mb * 1024 * 1024) != 0)

    {

      puts ("attr_setstacksize failed");

      return 1;

    }

  int r;

  for (r = 0; r < 10; ++r)

    {

      int i;

      for (i = 0; i < N; ++i)

	if (pthread_create (&th[i], &a, tf, cbs[i]) != 0)

	  {

	    puts ("pthread_create failed");

	    exit (1);

	  }

      nsigs = 0;

      pthread_barrier_wait (&b);

      sigset_t ss;

      sigemptyset (&ss);

      sigaddset (&ss, THE_SIG);

      if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0)

	{

	  puts ("pthread_sigmask failed");

	  exit (1);

	}

      /* Start sending signals.  */

      for (i = 0; i < TOTAL_SIGS; ++i)

	{

	  if (kill (getpid (), THE_SIG) != 0)

	    {

	      puts ("kill failed");

	      exit (1);

	    }

	  if (TEMP_FAILURE_RETRY (sem_wait (&s)) != 0)

	    {

	      puts ("sem_wait failed");

	      exit (1);

	    }

	  ++nsigs;

	}

      pthread_barrier_wait (&b);

      if (pthread_sigmask (SIG_UNBLOCK, &ss, NULL) != 0)

	{

	  puts ("pthread_sigmask failed");

	  exit (1);

	}

      for (i = 0; i < N; ++i)

	if (pthread_join (th[i], NULL) != 0)

	  {

	    puts ("join failed");

	    exit (1);

	  }

    }

  if (pthread_attr_destroy (&a) != 0)

    {

      puts ("attr_destroy failed");

      exit (1);

    }

  return 0;

}