| /* |
| * Copyright (c) 2005, Bull S.A.. All rights reserved. |
| * Created by: Sebastien Decugis |
| |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it would be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| |
| * This sample test aims to check the following assertions: |
| * |
| * If SA_NODEFER is not set in sa_flags, the caught signal is added to the |
| * thread's signal mask during the handler execution. |
| |
| * The steps are: |
| * -> register a signal handler for SIGXCPU |
| * -> raise SIGXCPU |
| * -> In handler, check for reentrance then raise SIGXCPU again. |
| |
| * The test fails if signal handler if reentered or signal is not pending when raised again. |
| */ |
| |
| |
| /******************************************************************************/ |
| /*************************** standard includes ********************************/ |
| /******************************************************************************/ |
| #include <pthread.h> |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| #include <signal.h> |
| #include <errno.h> |
| |
| /******************************************************************************/ |
| /*************************** Test framework *******************************/ |
| /******************************************************************************/ |
| #include "../testfrmw/testfrmw.h" |
| #include "../testfrmw/testfrmw.c" |
| /* This header is responsible for defining the following macros: |
| * UNRESOLVED(ret, descr); |
| * where descr is a description of the error and ret is an int |
| * (error code for example) |
| * FAILED(descr); |
| * where descr is a short text saying why the test has failed. |
| * PASSED(); |
| * No parameter. |
| * |
| * Both three macros shall terminate the calling process. |
| * The testcase shall not terminate in any other maneer. |
| * |
| * The other file defines the functions |
| * void output_init() |
| * void output(char * string, ...) |
| * |
| * Those may be used to output information. |
| */ |
| |
| /******************************************************************************/ |
| /**************************** Configuration ***********************************/ |
| /******************************************************************************/ |
| #ifndef VERBOSE |
| #define VERBOSE 1 |
| #endif |
| |
| #define SIGNAL SIGXCPU |
| |
| /******************************************************************************/ |
| /*************************** Test case ***********************************/ |
| /******************************************************************************/ |
| |
| int called = 0; |
| |
| void handler(int sig) |
| { |
| int ret; |
| sigset_t pending; |
| called++; |
| |
| if (called == 2) { |
| FAILED("Signal was not masked in signal handler"); |
| } |
| |
| if (called == 1) { |
| |
| /* Raise the signal again. It should be masked */ |
| ret = raise(SIGNAL); |
| |
| if (ret != 0) { |
| UNRESOLVED(ret, "Failed to raise SIGXCPU again"); |
| } |
| |
| /* check the signal is pending */ |
| ret = sigpending(&pending); |
| |
| if (ret != 0) { |
| UNRESOLVED(ret, "Failed to get pending signal set"); |
| } |
| |
| ret = sigismember(&pending, SIGNAL); |
| |
| if (ret != 1) { |
| FAILED("signal is not pending"); |
| } |
| } |
| |
| called++; |
| } |
| |
| /* main function */ |
| int main(void) |
| { |
| int ret; |
| |
| struct sigaction sa; |
| |
| /* Initialize output */ |
| output_init(); |
| |
| /* Set the signal handler */ |
| sa.sa_flags = 0; |
| |
| sa.sa_handler = handler; |
| |
| ret = sigemptyset(&sa.sa_mask); |
| |
| if (ret != 0) { |
| UNRESOLVED(ret, "Failed to empty signal set"); |
| } |
| |
| /* Install the signal handler for SIGXCPU */ |
| ret = sigaction(SIGNAL, &sa, 0); |
| |
| if (ret != 0) { |
| UNRESOLVED(ret, "Failed to set signal handler"); |
| } |
| |
| ret = raise(SIGNAL); |
| |
| if (ret != 0) { |
| UNRESOLVED(ret, "Failed to raise SIGXCPU"); |
| } |
| |
| while (called != 4) |
| sched_yield(); |
| |
| /* Test passed */ |
| #if VERBOSE > 0 |
| |
| output("Test passed\n"); |
| |
| #endif |
| |
| PASSED; |
| } |