OZ++ Class: SignalDescriptor |
/****************************************************************************** * * Copyright (c) 2015 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED. * * 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. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. * * * SignalDescriptor.h * *****************************************************************************/ #pragma once #include <oz++/CommonObject.h> #include <oz++/FileDescriptor.h> #include <oz++/Exception.h> #include <sys/signalfd.h> #include <oz++/SignalSet.h> #include <oz++/SignalParser.h> namespace OZ { class SignalDescriptor :public FileDescriptor { public: SignalDescriptor(int fd, SignalSet& set, int flags) :FileDescriptor() { //The fd can take -1. sigset_t mask = set.getSet(); int sfd = signalfd(fd, &mask, flags); if (sfd == INVALID_FD) { throw IException("Failed signalfd :%s", strerror(errno)); } else { setFD(sfd); } } public: SignalDescriptor(int fd, const sigset_t* mask, int flags) :FileDescriptor() { //The fd can take -1. int sfd = signalfd(fd, mask, flags); if (sfd == INVALID_FD) { throw IException("Failed signalfd :%s", strerror(errno)); } else { setFD(sfd); } } void read(SignalParser& parser) { ssize_t size = FileDescriptor::read((void*)parser.getBuffer(), parser.getBufferSize()); parser.parse(size); } }; }