dlls/msvcrt/tests/signal.c

   1 /*
   2  * Unit test suite for signal function.
   3  *
   4  * Copyright 2009 Peter Rosin
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "wine/test.h"
  22 #include <winbase.h>
  23 #include <signal.h>
  24
  25 static int test_value = 0;
  26
  27 static void __cdecl sighandler(int signum)
  28 {
  29     void **ret = __pxcptinfoptrs();
  30
  31     ok(ret != NULL, "ret = NULL\n");
  32     if(signum == SIGABRT)
  33         ok(*ret == (void*)0xdeadbeef, "*ret = %p\n", *ret);
  34     else if(signum == SIGSEGV)
  35         ok(*ret == NULL, "*ret = %p\n", *ret);
  36     ++test_value;
  37 }
  38
  39 static void test_signal(void)
  40 {
  41     void (__cdecl *old)(int);
  42     int res;
  43
  44     old = signal(SIGBREAK, sighandler);
  45     ok(old != SIG_ERR, "Failed to install signal handler for SIGBREAK\n");
  46     test_value = 0;
  47     res = raise(SIGBREAK);
  48     ok(res == 0, "Failed to raise SIGBREAK\n");
  49     ok(test_value == 1, "SIGBREAK handler not invoked\n");
  50 }
  51
  52 static void test___pxcptinfoptrs(void)
  53 {
  54     void **ret = __pxcptinfoptrs();
  55     int res;
  56
  57     ok(ret != NULL, "ret == NULL\n");
  58     ok(*ret == NULL, "*ret != NULL\n");
  59
  60     test_value = 0;
  61
  62     *ret = (void*)0xdeadbeef;
  63     signal(SIGSEGV, sighandler);
  64     res = raise(SIGSEGV);
  65     ok(res == 0, "failed to raise SIGSEGV\n");
  66     ok(*ret == (void*)0xdeadbeef, "*ret = %p\n", *ret);
  67
  68     signal(SIGABRT, sighandler);
  69     res = raise(SIGABRT);
  70     ok(res == 0, "failed to raise SIGBREAK\n");
  71     ok(*ret == (void*)0xdeadbeef, "*ret = %p\n", *ret);
  72
  73     ok(test_value == 2, "test_value = %d\n", test_value);
  74 }
  75
  76 START_TEST(signal)
  77 {
  78     test_signal();
  79     test___pxcptinfoptrs();
  80 }