这篇教程C++ FD_ISSET函数代码示例写得很实用，希望能帮到您。
本文整理汇总了C++中FD_ISSET函数的典型用法代码示例。如果您正苦于以下问题：C++ FD_ISSET函数的具体用法？C++ FD_ISSET怎么用？C++ FD_ISSET使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。 在下文中一共展示了FD_ISSET函数的30个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。 示例1: ldap_pvt_connect//.........这里部分代码省略......... msg.msg_iov = &iov; msg.msg_iovlen = 1;# ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL msg.msg_control = control_un.control; msg.msg_controllen = sizeof( control_un.control ); msg.msg_flags = 0; cmsg = CMSG_FIRSTHDR( &msg ); cmsg->cmsg_len = CMSG_LEN( sizeof(int) ); cmsg->cmsg_level = SOL_SOCKET; cmsg->cmsg_type = SCM_RIGHTS; *((int *)CMSG_DATA(cmsg)) = fds[0];# else msg.msg_accrights = (char *)fds; msg.msg_accrightslen = sizeof(int);# endif /* HAVE_STRUCT_MSGHDR_MSG_CONTROL */ getpeername( s, sa, &salen ); fchmod( fds[0], S_ISUID|S_IRWXU ); write( fds[1], sa, salen ); sendmsg( s, &msg, 0 ); close(fds[0]); close(fds[1]); } }#endif return 0; } if ( errno != EINPROGRESS && errno != EWOULDBLOCK ) return -1; #ifdef notyet if ( async ) return -2;#endif#ifdef HAVE_POLL { struct pollfd fd; int timeout = INFTIM; if( opt_tv != NULL ) timeout = TV2MILLISEC( &tv ); fd.fd = s; fd.events = POLL_WRITE; do { fd.revents = 0; rc = poll( &fd, 1, timeout ); } while( rc == AC_SOCKET_ERROR && errno == EINTR && LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_RESTART )); if( rc == AC_SOCKET_ERROR ) return rc; if( fd.revents & POLL_WRITE ) { if ( ldap_pvt_is_socket_ready(ld, s) == -1 ) return -1; if ( ldap_pvt_ndelay_off(ld, s) == -1 ) return -1;#ifdef LDAP_PF_LOCAL_SENDMSG goto sendcred;#else return ( 0 );#endif } }#else { fd_set wfds, *z=NULL;#ifdef FD_SETSIZE if ( s >= FD_SETSIZE ) { rc = AC_SOCKET_ERROR; tcp_close( s ); ldap_pvt_set_errno( EMFILE ); return rc; }#endif do { FD_ZERO(&wfds); FD_SET(s, &wfds ); rc = select( ldap_int_tblsize, z, &wfds, z, opt_tv ? &tv : NULL ); } while( rc == AC_SOCKET_ERROR && errno == EINTR && LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_RESTART )); if( rc == AC_SOCKET_ERROR ) return rc; if ( FD_ISSET(s, &wfds) ) { if ( ldap_pvt_is_socket_ready(ld, s) == -1 ) return -1; if ( ldap_pvt_ndelay_off(ld, s) == -1 ) return -1;#ifdef LDAP_PF_LOCAL_SENDMSG goto sendcred;#else return ( 0 );#endif } }#endif oslocal_debug(ld, "ldap_connect_timeout: timed out/n",0,0,0); ldap_pvt_set_errno( ETIMEDOUT ); return ( -1 );}
开发者ID:FarazShaikh，项目名称:LikewiseSMB2，代码行数:101，
示例2: main//.........这里部分代码省略......... }#endif#ifdef USE_MINIUPNPDCTL if(sctl >= 0) { FD_SET(sctl, &readset); max_fd = MAX( max_fd, sctl); } for(ectl = ctllisthead.lh_first; ectl; ectl = ectl->entries.le_next) { if(ectl->socket >= 0) { FD_SET(ectl->socket, &readset); max_fd = MAX( max_fd, ectl->socket); } }#endif#ifdef ENABLE_EVENTS upnpevents_selectfds(&readset, &writeset, &max_fd);#endif if(select(max_fd+1, &readset, &writeset, 0, &timeout) < 0) { if(quitting) goto shutdown; if(errno == EINTR) continue; /* interrupted by a signal, start again */ syslog(LOG_ERR, "select(all): %m"); syslog(LOG_ERR, "Failed to select open sockets. EXITING"); return 1; /* very serious cause of error */ }#ifdef USE_MINIUPNPDCTL for(ectl = ctllisthead.lh_first; ectl;) { ectlnext = ectl->entries.le_next; if((ectl->socket >= 0) && FD_ISSET(ectl->socket, &readset)) { char buf[256]; int l; l = read(ectl->socket, buf, sizeof(buf)); if(l > 0) { /*write(ectl->socket, buf, l);*/ write_command_line(ectl->socket, argc, argv); write_option_list(ectl->socket); write_permlist(ectl->socket, upnppermlist, num_upnpperm); write_upnphttp_details(ectl->socket, upnphttphead.lh_first); write_ctlsockets_list(ectl->socket, ctllisthead.lh_first); write_ruleset_details(ectl->socket);#ifdef ENABLE_EVENTS write_events_details(ectl->socket);#endif /* close the socket */ close(ectl->socket); ectl->socket = -1; } else { close(ectl->socket); ectl->socket = -1; } } if(ectl->socket < 0) { LIST_REMOVE(ectl, entries); free(ectl); } ectl = ectlnext;
开发者ID:chinshou，项目名称:miniupnp，代码行数:67，
示例3: mainint main(int argc, char* argv[]){ int sockfd, fdmax, i, port; char *host; struct hostent *hp; struct sockaddr_in server_addr; fd_set master; fd_set read_fds; if (argc==4) { host = argv[1]; port = atoi(argv[2]); if(strlen(argv[3]) > NAME_SIZE){ fprintf(stderr, "User name too long"); exit(1); } else{ strcpy(username, argv[3]); printf("%s/n", username); } } else { fprintf(stderr, "usage: ./client <host> <port> <username>/n"); exit(1); } /* translate host name into peer
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