| /* |
| * Copyright (c) 2005, Bull S.A.. All rights reserved. |
| * Created by: Sebastien Decugis |
| * Copyright (c) 2013 Cyril Hrubis <chrubis@suse.cz> |
| * |
| * 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_SIGINFO is set in sa_flags and Real Time Signals extension is supported, |
| * sa_sigaction is used as the signal handling function. |
| * |
| * The steps are: |
| * -> test for RTS extension |
| * -> register a handler for SIGPROF with SA_SIGINFO, and a known function |
| * as sa_sigaction |
| * -> raise SIGPROF, and check the function has been called. |
| * |
| * The test fails if the function is not called |
| */ |
| |
| /* We are testing conformance to IEEE Std 1003.1, 2003 Edition */ |
| #define _POSIX_C_SOURCE 200112L |
| |
| #include <pthread.h> |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include <signal.h> |
| #include <errno.h> |
| #include "posixtest.h" |
| |
| #define WRITE(str) write(STDOUT_FILENO, str, sizeof(str) - 1) |
| |
| static volatile sig_atomic_t called = 0; |
| |
| static void handler(int sig, siginfo_t *info, void *context) |
| { |
| (void) sig; |
| (void) context; |
| |
| if (info->si_signo != SIGPROF) { |
| WRITE("Wrong signal generated?\n"); |
| _exit(PTS_FAIL); |
| } |
| |
| called = 1; |
| } |
| |
| int main(void) |
| { |
| int ret; |
| long rts; |
| |
| struct sigaction sa; |
| |
| /* Test the RTS extension */ |
| rts = sysconf(_SC_REALTIME_SIGNALS); |
| |
| if (rts < 0L) { |
| fprintf(stderr, "This test needs the RTS extension"); |
| return PTS_UNTESTED; |
| } |
| |
| /* Set the signal handler */ |
| sa.sa_flags = SA_SIGINFO; |
| sa.sa_sigaction = handler; |
| |
| ret = sigemptyset(&sa.sa_mask); |
| |
| if (ret != 0) { |
| perror("Failed to empty signal set"); |
| return PTS_UNRESOLVED; |
| } |
| |
| /* Install the signal handler for SIGPROF */ |
| ret = sigaction(SIGPROF, &sa, 0); |
| |
| if (ret != 0) { |
| perror("Failed to set signal handler"); |
| return PTS_UNTESTED; |
| } |
| |
| if (called) { |
| fprintf(stderr, |
| "The signal handler has been called before signal was raised"); |
| return PTS_FAIL; |
| } |
| |
| ret = raise(SIGPROF); |
| |
| if (ret != 0) { |
| perror("Failed to raise SIGPROF"); |
| return PTS_UNRESOLVED; |
| } |
| |
| if (!called) { |
| fprintf(stderr, "The sa_handler was not called"); |
| return PTS_FAIL; |
| } |
| |
| printf("Test PASSED\n"); |
| |
| return PTS_PASS; |
| } |