xref: /recipes/reactor/s06-s05-SocketsOps.h.diff

 // Copyright 2010, Shuo Chen.  All rights reserved.
 // http://code.google.com/p/muduo/
 //
 // Use of this source code is governed by a BSD-style license
 // that can be found in the License file.
 
 // Author: Shuo Chen (chenshuo at chenshuo dot com)
 //
 // This is an internal header file, you should not include this.
 
 #ifndef MUDUO_NET_SOCKETSOPS_H
 #define MUDUO_NET_SOCKETSOPS_H
 
 #include <arpa/inet.h>
 #include <endian.h>
 
 namespace muduo
 {
 namespace sockets
 {
 
 // the inline assembler code makes type blur,
 // so we disable warnings for a while.
 #pragma GCC diagnostic ignored "-Wconversion"
 inline uint64_t hostToNetwork64(uint64_t host64)
 {
   return htobe64(host64);
 }
 
 inline uint32_t hostToNetwork32(uint32_t host32)
 {
   return htonl(host32);
 }
 
 inline uint16_t hostToNetwork16(uint16_t host16)
 {
   return htons(host16);
 }
 
 inline uint64_t networkToHost64(uint64_t net64)
 {
   return be64toh(net64);
 }
 
 inline uint32_t networkToHost32(uint32_t net32)
 {
   return ntohl(net32);
 }
 
 inline uint16_t networkToHost16(uint16_t net16)
 {
   return ntohs(net16);
 }
 #pragma GCC diagnostic error "-Wconversion"
 
 ///
 /// Creates a non-blocking socket file descriptor,
 /// abort if any error.
 int createNonblockingOrDie();
 
 void bindOrDie(int sockfd, const struct sockaddr_in& addr);
 void listenOrDie(int sockfd);
 int  accept(int sockfd, struct sockaddr_in* addr);
 void close(int sockfd);
 
 void toHostPort(char* buf, size_t size,
                 const struct sockaddr_in& addr);
 void fromHostPort(const char* ip, uint16_t port,
                   struct sockaddr_in* addr);
 
 struct sockaddr_in getLocalAddr(int sockfd);
 
+int getSocketError(int sockfd);
+
 }
 }
 
 #endif  // MUDUO_NET_SOCKETSOPS_H