/* +------------------------------------+ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * * Inspire is copyright (C) 2002-2005 ChatSpike-Dev. * E-mail: * * * * Written by Craig Edwards, Craig McLure, and others. * This program is free but copyrighted software; see * the file COPYING for details. * * --------------------------------------------------- */ // Fill the engine with client file descriptors pending an action #define epoll_fill int i = epoll_wait(ep, event, 1, 5); \ if (i > 0) \ { \ log(DEBUG,"epoll_wait call: ep=%d, i=%d",ep,i); \ userrec* cu = fd_ref_table[event[0].data.fd]; #define kqueue_fill ts.tv_sec = 0; \ ts.tv_nsec = 1000L; \ int i = kevent(kq, NULL, 0, &ke, 1, &ts); \ if (i > 0) \ { \ log(DEBUG,"kevent call: kq=%d, i=%d",kq,i); \ userrec* cu = fd_ref_table[ke.ident]; #define select_fill tval.tv_sec = 0; \ tval.tv_usec = 1000L; \ selectResult2 = select(FD_SETSIZE, &sfd, NULL, NULL, &tval); \ if ((selectResult2 > 0) && (xcount != clientlist.end())) \ for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++) \ { \ if (count2a == clientlist.end()) \ break; \ userrec* cu = count2a->second; #ifdef USE_EPOLL #define engine_fill epoll_fill #endif #ifdef USE_KQUEUE #define engine_fill kqueue_fill #endif #ifdef USE_SELECT #define engine_fill select_fill #endif // how to determine if a socket needs attention if further checks are needed #define epoll_check ((cu->fd != FD_MAGIC_NUMBER) && (cu->fd != -1)) #define kqueue_check ((cu->fd != FD_MAGIC_NUMBER) && (cu->fd != -1)) #define select_check ((cu->fd != FD_MAGIC_NUMBER) && (cu->fd != -1) && (FD_ISSET (cu->fd, &sfd))) #ifdef USE_EPOLL #define engine_check epoll_check #endif #ifdef USE_KQUEUE #define engine_check kqueue_check #endif #ifdef USE_SELECT #define engine_check select_check #endif // how to clean up an exiting client #define epoll_cleanup log(DEBUG,"InspIRCd: Exited: %s",cu->nick); \ kill_link(cu,"Client exited"); \ log(DEBUG,"Bailing from client exit"); \ goto label; #define kqueue_cleanup log(DEBUG,"InspIRCd: Exited: %s",cu->nick); \ kill_link(cu,"Client exited"); \ log(DEBUG,"Bailing from client exit"); \ goto label; #define select_cleanup if (count2->second) \ { \ log(DEBUG,"InspIRCd: Exited: %s",cu->nick); \ kill_link(cu,"Client exited"); \ log(DEBUG,"Bailing from client exit"); \ goto label; \ } #ifdef USE_EPOLL #define engine_cleanup epoll_cleanup #endif #ifdef USE_KQUEUE #define engine_cleanup kqueue_cleanup #endif #ifdef USE_SELECT #define engine_cleanup select_cleanup #endif // how to scan the set for fd's requiring action #define select_scanset for (count = 0; count < boundPortCount; count++) \ { \ FD_SET (openSockfd[count], &selectFds); \ } \ tv.tv_usec = 30000L; \ selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv); \ if (selectResult > 0) \ { \ for (count = 0; count < boundPortCount; count++) \ { \ if (FD_ISSET (openSockfd[count], &selectFds)) \ { #define kqueue_scanset ts.tv_sec = 0; \ ts.tv_nsec = 30000L; \ i = kevent(lkq, NULL, 0, ke_list, 32, &ts); \ if (i > 0) for (j = 0; j < i; j++) \ { \ log(DEBUG,"kqueue: Listening socket event, i=%d, ke.ident=%d",i,ke_list[j].ident); \ for (count = 0; count < boundPortCount; count++) \ { \ if ((unsigned)ke_list[j].ident == (unsigned)openSockfd[count]) \ { #define epoll_scanset i = epoll_wait(lep, event, 32, EP_DELAY); \ if (i > 0) for (j = 0; j < i; j++) \ { \ log(DEBUG,"epoll: Listening socket event, i=%d,events[j].data.fd=%d",i,event[j].data.fd); \ for (count = 0; count < boundPortCount; count++) \ { \ if ((unsigned)event[j].data.fd == (unsigned)openSockfd[count]) \ { #ifdef USE_EPOLL #define engine_scanset epoll_scanset #endif #ifdef USE_KQUEUE #define engine_scanset kqueue_scanset #endif #ifdef USE_SELECT #define engine_scanset select_scanset #endif // a list of variables used specifically by this engine #define kqueue_structs struct kevent ke; \ struct kevent ke_list[33]; \ struct timespec ts; #define epoll_structs struct epoll_event event[33]; #define select_structs fd_set sfd; #ifdef USE_EPOLL #define engine_structs epoll_structs #endif #ifdef USE_KQUEUE #define engine_structs kqueue_structs #endif #ifdef USE_SELECT #define engine_structs select_structs #endif // how to initialise the engine before using it #define select_init while(0); #define kqueue_init kq = kqueue(); \ lkq = kqueue(); \ skq = kqueue(); \ if ((kq == -1) || (lkq == -1) || (skq == -1)) \ { \ log(DEFAULT,"main: kqueue() failed!"); \ printf("ERROR: could not initialise kqueue event system. Shutting down.\n"); \ Exit(ERROR); \ } #define epoll_init ep = epoll_create(MAXCLIENTS); \ lep = epoll_create(32); \ sep = epoll_create(128); \ if ((ep == -1) || (lep == -1) || (sep == -1)) \ { \ log(DEFAULT,"main: epoll_create() failed!"); \ printf("ERROR: could not initialise epoll event system. Shutting down.\n"); \ Exit(ERROR); \ } #ifdef USE_EPOLL #define engine_init epoll_init #endif #ifdef USE_KQUEUE #define engine_init kqueue_init #endif #ifdef USE_SELECT #define engine_init select_init #endif // how to delete a client fd from the engine #define kqueue_delete_fd struct kevent ke; \ EV_SET(&ke, user->fd, EVFILT_READ, EV_DELETE, 0, 0, NULL); \ int i = kevent(kq, &ke, 1, 0, 0, NULL); \ if (i == -1) \ { \ log(DEBUG,"kqueue: Failed to remove user from queue!"); \ } #define epoll_delete_fd struct epoll_event ev; \ ev.events = EPOLLIN | EPOLLET; \ ev.data.fd = user->fd; \ int i = epoll_ctl(ep, EPOLL_CTL_DEL, user->fd, &ev); \ if (i < 0) \ { \ log(DEBUG,"epoll: List deletion failure!"); \ } #define select_delete_fd while(0); #ifdef USE_EPOLL #define engine_delete_fd epoll_delete_fd #endif #ifdef USE_KQUEUE #define engine_delete_fd kqueue_delete_fd #endif #ifdef USE_SELECT #define engine_delete_fd select_delete_fd #endif // how to add a client fd to the engine #define select_add_fd while(0); #define epoll_add_fd struct epoll_event ev; \ log(DEBUG,"epoll: Adduser to events, ep=%d socket=%d",ep,socket); \ ev.events = EPOLLIN | EPOLLET; \ ev.data.fd = socket; \ int i = epoll_ctl(ep, EPOLL_CTL_ADD, socket, &ev); \ if (i < 0) \ { \ log(DEBUG,"epoll: List insertion failure!"); \ } #define kqueue_add_fd struct kevent ke; \ log(DEBUG,"kqueue: Add user to events, kq=%d socket=%d",kq,socket);\ EV_SET(&ke, socket, EVFILT_READ, EV_ADD, 0, 0, NULL); \ int i = kevent(kq, &ke, 1, 0, 0, NULL); \ if (i == -1) \ { \ log(DEBUG,"kqueue: List insertion failure!"); \ } #ifdef USE_EPOLL #define engine_add_fd epoll_add_fd #endif #ifdef USE_KQUEUE #define engine_add_fd kqueue_add_fd #endif #ifdef USE_SELECT #define engine_add_fd select_add_fd #endif #define select_server_fill log(DEFAULT,"Using standard select socket engine."); #define epoll_server_fill log(DEFAULT,"epoll socket engine is enabled. Filling listen list. boundPortcount=%d",boundPortCount); \ for (count = 0; count < boundPortCount; count++) \ { \ struct epoll_event ev; \ log(DEBUG,"epoll: Add listening socket to events, ep=%d socket=%d",lep,openSockfd[count]); \ ev.events = EPOLLIN | EPOLLET; \ ev.data.fd = openSockfd[count]; \ int i = epoll_ctl(lep, EPOLL_CTL_ADD, openSockfd[count], &ev); \ if (i < 0) \ { \ log(DEFAULT,"main: add listen ports, epoll_ctl failed!"); \ printf("ERROR: could not initialise listening sockets in epoll list. Shutting down.\n"); \ Exit(ERROR); \ } \ } #define kqueue_server_fill log(DEFAULT,"kqueue socket engine is enabled. Filling listen list."); \ for (count = 0; count < boundPortCount; count++) \ { \ struct kevent ke; \ log(DEBUG,"kqueue: Add listening socket to events, kq=%d socket=%d",lkq,openSockfd[count]); \ EV_SET(&ke, openSockfd[count], EVFILT_READ, EV_ADD, 0, MaxConn, NULL); \ int i = kevent(lkq, &ke, 1, 0, 0, NULL); \ if (i == -1) \ { \ log(DEFAULT,"main: add listen ports to kqueue failed!"); \ printf("ERROR: could not initialise listening sockets in kqueue. Shutting down.\n"); \ Exit(ERROR); \ } \ } #ifdef USE_EPOLL #define engine_server_fill epoll_server_fill #endif #ifdef USE_KQUEUE #define engine_server_fill kqueue_server_fill #endif #ifdef USE_SELECT #define engine_server_fill select_server_fill #endif // what is this engine called? #ifdef USE_KQUEUE #define engine_name "kqueue" #endif #ifdef USE_SELECT #define engine_name "select" #endif #ifdef USE_EPOLL #define engine_name "epoll" #endif