| /**************************************************************************** |
| * apps/examples/ostest/sigprocmask.c |
| * |
| * Copyright (C) 2015 Gregory Nutt. All rights reserved. |
| * Author: Gregory Nutt <gnutt@nuttx.org> |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * 3. Neither the name NuttX nor the names of its contributors may be |
| * used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
| * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| * |
| ****************************************************************************/ |
| |
| #include <sys/types.h> |
| #include <stdbool.h> |
| #include <stdio.h> |
| #include <signal.h> |
| #include <string.h> |
| #include <errno.h> |
| |
| #include "ostest.h" |
| |
| /**************************************************************************** |
| * Pre-processor Definitions |
| ****************************************************************************/ |
| |
| #define NSIGNALS 5 |
| |
| /**************************************************************************** |
| * Private Data |
| ****************************************************************************/ |
| |
| static int g_some_signals[NSIGNALS] = {1, 3, 5, 7, 9}; |
| |
| /**************************************************************************** |
| * Public Functions |
| ****************************************************************************/ |
| |
| void sigprocmask_test(void) |
| { |
| sigset_t saved; |
| sigset_t currmask; |
| sigset_t newmask; |
| int ret; |
| int i; |
| |
| /* Save the current sigprocmask */ |
| |
| ret = sigprocmask(SIG_SETMASK, NULL, &saved); |
| if (ret != OK) |
| { |
| int errcode = errno; |
| printf("sigprocmask_test: ERROR sigprocmask failed: %d\n", errcode); |
| goto errout; |
| } |
| |
| /* Set the mask to all zeroes */ |
| |
| ret = sigemptyset(&newmask); |
| if (ret != OK) |
| { |
| int errcode = errno; |
| printf("sigprocmask_test: ERROR sigemptyset failed: %d\n", errcode); |
| goto errout; |
| } |
| |
| ret = sigprocmask(SIG_SETMASK, &newmask, NULL); |
| if (ret != OK) |
| { |
| int errcode = errno; |
| printf("sigprocmask_test: ERROR sigprocmask failed: %d\n", errcode); |
| goto errout_with_mask; |
| } |
| |
| /* Set a few signals */ |
| |
| for (i = 0; i < NSIGNALS; i++) |
| { |
| int signo = g_some_signals[i]; |
| |
| ret = sigaddset(&newmask, signo); |
| if (ret != OK) |
| { |
| int errcode = errno; |
| printf("sigprocmask_test: ERROR sigaddset failed: %d\n", errcode); |
| goto errout_with_mask; |
| } |
| |
| ret = sighold(signo); |
| if (ret != OK) |
| { |
| int errcode = errno; |
| printf("sigprocmask_test: ERROR sighold failed: %d\n", errcode); |
| goto errout_with_mask; |
| } |
| } |
| |
| /* Now get the modified mask */ |
| |
| ret = sigprocmask(SIG_SETMASK, NULL, &currmask); |
| if (ret != OK) |
| { |
| int errcode = errno; |
| printf("sigprocmask_test: ERROR sigprocmask failed: %d\n", errcode); |
| goto errout_with_mask; |
| } |
| |
| /* It should be the same as newmask */ |
| |
| if (memcmp(&currmask, &newmask, sizeof(sigset_t)) != 0) |
| { |
| printf("sigprocmask_test: ERROR unexpected sigprocmask\n"); |
| goto errout_with_mask; |
| } |
| |
| /* Set the mask to all ones */ |
| |
| ret = sigfillset(&newmask); |
| if (ret != OK) |
| { |
| int errcode = errno; |
| printf("sigprocmask_test: ERROR sigfillset failed: %d\n", errcode); |
| goto errout; |
| } |
| |
| ret = sigprocmask(SIG_SETMASK, &newmask, NULL); |
| if (ret != OK) |
| { |
| int errcode = errno; |
| printf("sigprocmask_test: ERROR sigprocmask failed: %d\n", errcode); |
| goto errout_with_mask; |
| } |
| |
| /* Release a few signals */ |
| |
| for (i = 0; i < NSIGNALS; i++) |
| { |
| int signo = g_some_signals[i]; |
| |
| ret = sigdelset(&newmask, signo); |
| if (ret != OK) |
| { |
| int errcode = errno; |
| printf("sigprocmask_test: ERROR sigdelset failed: %d\n", errcode); |
| goto errout_with_mask; |
| } |
| |
| ret = sigrelse(signo); |
| if (ret != OK) |
| { |
| int errcode = errno; |
| printf("sigprocmask_test: ERROR sigrelse failed: %d\n", errcode); |
| goto errout_with_mask; |
| } |
| } |
| |
| /* Now get the modified mask */ |
| |
| ret = sigprocmask(SIG_SETMASK, NULL, &currmask); |
| if (ret != OK) |
| { |
| int errcode = errno; |
| printf("sigprocmask_test: ERROR sigprocmask failed: %d\n", errcode); |
| goto errout_with_mask; |
| } |
| |
| /* It should be the same as newmask */ |
| |
| if (memcmp(&currmask, &newmask, sizeof(sigset_t)) != 0) |
| { |
| printf("sigprocmask_test: ERROR unexpected sigprocmask\n"); |
| goto errout_with_mask; |
| } |
| |
| ret = sigprocmask(SIG_SETMASK, &saved, NULL); |
| if (ret != OK) |
| { |
| int errcode = errno; |
| printf("sigprocmask_test: ERROR sigprocmask failed: %d\n", errcode); |
| goto errout; |
| } |
| |
| printf("sigprocmask_test: SUCCESS\n" ); |
| FFLUSH(); |
| return; |
| |
| errout_with_mask: |
| ret = sigprocmask(SIG_SETMASK, &saved, NULL); |
| if (ret != OK) |
| { |
| int errcode = errno; |
| printf("sigprocmask_test: ERROR sigprocmask failed: %d\n", errcode); |
| goto errout; |
| } |
| |
| errout: |
| printf("sigprocmask_test: Aborting\n" ); |
| FFLUSH(); |
| } |