RCF - Interprocess Communication for C++

// OS-specific details - Unix common

#ifndef _UTIL_PLATFORM_OS_UNIX_COMMON_HPP_
#define _UTIL_PLATFORM_OS_UNIX_COMMON_HPP_

#if defined(sun) || defined(__sun) || defined(__sun__)
#define BSD_COMP                // Needs to be defined in order to use FIONBIO in ioctl()
#define MSG_NOSIGNAL 0            // MSG_NOSIGNAL flag for send() not implemented on Solaris
#endif

#include <iostream>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/uio.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>

#include <cerrno>

#ifndef __UNIX__
#define __UNIX__
#endif

// O_BINARY is not defined in Unix (all files are "binary" anyway)
#ifndef O_BINARY
#define O_BINARY 0
#endif

#ifndef SOCKET
#define SOCKET int
#endif

#ifndef INVALID_SOCKET
#define INVALID_SOCKET -1
#endif

// Solaris doesn't define INADDR_NONE, for some reason
#ifndef INADDR_NONE
#define INADDR_NONE ((unsigned long) -1)
#endif

namespace Platform {

    namespace OS {

        inline void OutputDebugString(const char *sz) 
        { 

#ifdef OUTPUTDEBUGSTRING_TO_STDERR
            fprintf(stderr, "%s", sz);
#endif

#ifdef OUTPUTDEBUGSTRING_TO_STDOUT
            fprintf(stdout, "%s", sz);
#endif

#ifdef OUTPUTDEBUGSTRING_TO_FILE
            static FILE *file = fopen( "OutputDebugString.txt", "w" );
            fprintf(file, "%s", sz);
#endif

        }

        inline int GetCurrentThreadId() { return 0; } //TODO (pthread_self() ?)

        inline std::string GetErrorString(int err) { return std::string( strerror(err) ); }
        inline std::string GetErrorString() { return GetErrorString( errno ); }
        
        inline void Sleep(unsigned int seconds) { ::sleep(seconds); }
        
        namespace Socket {
            
            inline int recv(int fd, char *buf, int len, int flags)              
            { 
                return ::recv(fd, buf, len, flags); 
            }

            inline int send(int fd, const char *buf, int len, int flags)        
            { 
                return ::send(fd, buf, len, flags | MSG_NOSIGNAL); 
            }

            inline int select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, const struct timeval *timeout) 
            { 
                return ::select( nfds, readfds, writefds, exceptfds, const_cast<struct timeval *>(timeout) ); 
            }

            inline int accept(int fd, sockaddr *addr, int *addrlen)
            { 
                socklen_t addrlen_ = *addrlen; 
                int ret = ::accept(fd, addr, &addrlen_); 
                *addrlen = addrlen_; 
                return ret; 
            }

            inline int connect(int fd, const sockaddr *name, int namelen)
            {
                return ::connect(fd, name, namelen); 
            }

            inline int closesocket(int fd)                                      
            { 
                return ::close(fd); 
            }

            inline void setblocking(SOCKET fd, bool bBlocking)                  
            { 
                int arg = bBlocking ? 0 : 1; 
                ::ioctl(fd, FIONBIO, &arg); 
            }

            inline int GetLastError()                                           
            { 
                return errno; 
            }

            static const int ERR_EWOULDBLOCK = EWOULDBLOCK;
            static const int ERR_EINPROGRESS = EINPROGRESS;
            static const int ERR_ECONNRESET = ECONNRESET;
            static const int ERR_ECONNABORTED = ECONNABORTED;
            static const int ERR_ECONNREFUSED = ECONNREFUSED;

        } //namespace Socket

    } // namespace OS;

} // namespace Platform


#endif //! _UTIL_PLATFORM_OS_UNIX_COMMON_HPP_