Subversion Repositories openrisc

//========================================================================

//

//      signal1.c

//

//      ISO C signal handling test

//

//========================================================================

//####ECOSGPLCOPYRIGHTBEGIN####

// -------------------------------------------

// This file is part of eCos, the Embedded Configurable Operating System.

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.

//

// eCos 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 or (at your option) any later version.

//

// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,

// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.

//

// As a special exception, if other files instantiate templates or use macros

// or inline functions from this file, or you compile this file and link it

// with other works to produce a work based on this file, this file does not

// by itself cause the resulting work to be covered by the GNU General Public

// License. However the source code for this file must still be made available

// in accordance with section (3) of the GNU General Public License.

//

// This exception does not invalidate any other reasons why a work based on

// this file might be covered by the GNU General Public License.

//

// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.

// at http://sources.redhat.com/ecos/ecos-license/

// -------------------------------------------

//####ECOSGPLCOPYRIGHTEND####

//========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):     jlarmour

// Contributors:  

// Date:          2000-04-18

// Purpose:       Test signal functionality

// Description:   This file contains a number of tests for ISO C signal

//                handling

// Usage:         

//

//####DESCRIPTIONEND####

//

//========================================================================

// CONFIGURATION

#include <pkgconf/libc_signals.h>  // libc signals configuration

// INCLUDES

#include <cyg/infra/cyg_type.h>    // Common type definitions and support

#include <cyg/infra/testcase.h>    // Test infrastructure

#include <signal.h>                // Signal functions

#include <setjmp.h>                // setjmp(), longjmp()

#include <stdlib.h>                // abort()

// STATICS

static int state;

static jmp_buf jbuf;

// FUNCTIONS

static void

myhandler1(int signal)

{

    CYG_TEST_INFO("myhandler1 called");

    ++state;

} // myhandler1()

static void

myhandler2(int signal)

{

    CYG_TEST_INFO("myhandler2 called");

    ++state;

    longjmp(jbuf, 1);

} // myhandler2()

int

main( int argc, char *argv[] )

{

    __sighandler_t handler1;

    int rc;

    // special callout to request GDB to alter its handling of signals

    CYG_TEST_GDBCMD("handle SIGTERM nostop");

    CYG_TEST_GDBCMD("handle SIGABRT nostop");

    CYG_TEST_INIT();

    CYG_TEST_INFO("Starting tests from testcase " __FILE__ " for C "

                  "library signal functions");

    // Test 1

    CYG_TEST_INFO("Test 1");

    state = 1;

    handler1 = signal(SIGTERM, &myhandler1);

    CYG_TEST_PASS_FAIL(handler1 == SIG_DFL,

                       "SIGTERM handler initialized to default");

    rc = raise(SIGTERM);

    CYG_TEST_PASS_FAIL(0==rc, "raise(SIGTERM) did not return error");

    CYG_TEST_PASS_FAIL(2==state, "SIGTERM handler returned correctly");

    // Test 2

    CYG_TEST_INFO("Test 2");

    state = 2;

    handler1 = signal(SIGTERM, &myhandler2);

    CYG_TEST_PASS_FAIL(handler1 == SIG_DFL,

                       "SIGTERM handler reset to default after test 1");

    handler1 = signal(SIGTERM, &myhandler1);

    CYG_TEST_PASS_FAIL(handler1 == &myhandler2,

                       "SIGTERM handler was set correctly");

    rc = raise(SIGTERM);

    CYG_TEST_PASS_FAIL(0==rc, "raise(SIGTERM) did not return error");

    CYG_TEST_PASS_FAIL(3==state, "SIGTERM handler returned correctly");

    // Test 3

    CYG_TEST_INFO("Test 3");

    handler1 = signal(SIGTERM, &myhandler2);

    CYG_TEST_PASS_FAIL(handler1 == SIG_DFL,

                       "SIGTERM handler reset to default after test 2");

    handler1 = signal(SIGTERM, SIG_DFL);

    CYG_TEST_PASS_FAIL(handler1 == &myhandler2,

                       "SIGTERM handler was set correctly");

    // Test 4

    CYG_TEST_INFO("Test 4");

    state = 4;

    handler1 = signal(SIGTERM, SIG_IGN);

    CYG_TEST_PASS_FAIL(handler1 == SIG_DFL,

                       "SIGTERM handler was set correctly after test 3");

    rc = raise(SIGTERM);

    CYG_TEST_PASS_FAIL(0==rc, "raise(SIGTERM) did not return error");

    CYG_TEST_PASS_FAIL(4==state, "SIGTERM ignored");

    // Test 5

    CYG_TEST_INFO("Test 5");

    state = 5;

    handler1 = signal(SIGTERM, &myhandler2);

    // SIG_IGN doesn't reset back to SIG_DFL after a raise()

    CYG_TEST_PASS_FAIL(handler1 == SIG_IGN,

                       "SIGTERM handler was set correctly after test 4");

    if (0==setjmp(jbuf)) {

        raise(SIGTERM);

        CYG_TEST_FAIL("raise returned");

    }

    CYG_TEST_PASS_FAIL(6==state, "SIGTERM handler returned correctly");

    // Test 6

    CYG_TEST_INFO("Test 6");

    state = 6;

    handler1 = signal(SIGABRT, &myhandler2);

    CYG_TEST_PASS_FAIL(handler1 == SIG_DFL,

                       "SIGABRT handler initialized to default");

    if (0==setjmp(jbuf)) {

        abort();

        CYG_TEST_FAIL("abort returned");

    }

    CYG_TEST_PASS_FAIL(7==state, "SIGABRT handler returned correctly");

    CYG_TEST_FINISH("Finished tests from testcase " __FILE__ " for C "

                    "library signal functions");

    return 0;

} // main()

// EOF signal1.c