ceph/src/include/sock_compat.h

   1 /*
   2  * Ceph - scalable distributed file system
   3  *
   4  * Copyright (C) 2018 Red Hat, Inc.
   5  *
   6  * This is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License version 2.1, as published by the Free Software
   9  * Foundation.  See file COPYING.
  10  */
  11
  12 #ifndef CEPH_SOCK_COMPAT_H
  13 #define CEPH_SOCK_COMPAT_H
  14
  15 #include "include/compat.h"
  16 #include <sys/socket.h>
  17
  18 /*
  19  * This optimization may not be available on all platforms (e.g. OSX).
  20  * Apparently a similar approach based on TCP_CORK can be used.
  21  */
  22 #ifndef MSG_MORE
  23 # define MSG_MORE 0
  24 #endif
  25
  26 /*
  27  * On BSD SO_NOSIGPIPE can be set via setsockopt to block SIGPIPE.
  28  */
  29 #ifndef MSG_NOSIGNAL
  30 # define MSG_NOSIGNAL 0
  31 # ifdef SO_NOSIGPIPE
  32 #  define CEPH_USE_SO_NOSIGPIPE
  33 # else
  34 #  define CEPH_USE_SIGPIPE_BLOCKER
  35 #  warning "Using SIGPIPE blocking instead of suppression; this is not well-tested upstream!"
  36 # endif
  37 #endif
  38
  39 int socket_cloexec(int domain, int type, int protocol);
  40 int socketpair_cloexec(int domain, int type, int protocol, int sv[2]);
  41 int accept_cloexec(int sockfd, struct sockaddr* addr, socklen_t* addrlen);
  42
  43 #endif