Warning, file /sdk/dferry/transport/localserver.cpp was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).

 /*
    Copyright (C) 2014 Andreas Hartmetz <ahartmetz@gmail.com>
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library 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
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LGPL.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 
    Alternatively, this file is available under the Mozilla Public License
    Version 1.1.  You may obtain a copy of the License at
    http://www.mozilla.org/MPL/
 */
 
 #include "localserver.h"
 
 #include "icompletionlistener.h"
 #include "localsocket.h"
 
 #include <fcntl.h>
 #include <sys/socket.h>
 #include <sys/un.h>
 #include <unistd.h>
 
 #include <cassert>
 #include <cstring>
 
 LocalServer::LocalServer(const std::string &socketFilePath)
    : m_listenFd(-1)
 {
     const int fd = socket(PF_UNIX, SOCK_STREAM, 0);
     if (fd < 0) {
         return;
     }
     // don't let forks inherit the file descriptor - just in case
     fcntl(fd, F_SETFD, FD_CLOEXEC);
 
     struct sockaddr_un addr;
     addr.sun_family = PF_UNIX;
     bool ok = socketFilePath.length() + 1 <= sizeof(addr.sun_path);
     if (ok) {
         memcpy(addr.sun_path, socketFilePath.c_str(), socketFilePath.length() + 1);
     }
 
     if (!socketFilePath.empty() && socketFilePath[0] != '\0') {
         // not a so-called abstract socket (weird but useful Linux specialty)
         unlink(socketFilePath.c_str());
     }
     ok = ok && (bind(fd, (struct sockaddr *)&addr, sizeof(sa_family_t) + socketFilePath.length()) == 0);
     ok = ok && (::listen(fd, /* max queued incoming connections */ 64) == 0);
 
     if (ok) {
         m_listenFd = fd;
     } else {
         ::close(fd);
     }
 }
 
 LocalServer::~LocalServer()
 {
     close();
 }
 
 IO::Status LocalServer::handleIoReady(IO::RW rw)
 {
     if (rw != IO::RW::Read) {
         assert(false);
         return IO::Status::InternalError;
     }
     if (m_listenFd < 0) {
         return IO::Status::LocalClosed;
     }
     int connFd = -1;
     while (true) {
         connFd = accept(m_listenFd, nullptr, nullptr);
         if (connFd >= 0) {
             break;
         }
         if (errno == EINTR) {
             continue;
         }
         // After listen() succeeded, the only possible errors are invalid parameters (we don't do that,
         // right?), EINTR, out of resource errors (which can be temporary), or aborted connection
         // attempt. Just give up on this connection attempt and stay in listening state.
         return IO::Status::OK;
     }
     fcntl(connFd, F_SETFD, FD_CLOEXEC);
 
     m_incomingConnections.push_back(new LocalSocket(connFd));
     if (m_newConnectionListener) {
         m_newConnectionListener->handleCompletion(this);
     }
     return IO::Status::OK;
 }
 
 bool LocalServer::isListening() const
 {
     return m_listenFd >= 0;
 }
 
 void LocalServer::platformClose()
 {
     if (m_listenFd >= 0) {
         ::close(m_listenFd);
         m_listenFd = -1;
     }
 }
 
 FileDescriptor LocalServer::fileDescriptor() const
 {
     return m_listenFd;
 }