/*! \brief handles io from a "generic" ser process (get fd or new_fd from a tcp_send) * * \param p - pointer in the ser processes array (pt[]), to the entry for * which an io event was detected * \param fd_i - fd index in the fd_array (usefull for optimizing * io_watch_deletes) * \return handle_* return convention: * - -1 on error reading from the fd, * - 0 on EAGAIN or when no more io events are queued * (receive buffer empty), * - >0 on successfull reads from the fd (the receive buffer might * be non-empty). */ inline static int handle_ser_child(struct process_table* p, int fd_i) { struct tcp_connection* tcpconn; long response[2]; int cmd; int bytes; int ret; int fd; ret=-1; if (p->unix_sock<=0){ /* (we can't have a fd==0, 0 is never closed )*/ LM_CRIT("fd %d for %d (pid %d)\n", p->unix_sock, (int)(p-&pt[0]), p->pid); goto error; } /* get all bytes and the fd (if transmitted) * (this is a SOCK_STREAM so read is not atomic) */ bytes=receive_fd(p->unix_sock, response, sizeof(response), &fd, MSG_DONTWAIT); if (bytes<(int)sizeof(response)){ /* too few bytes read */ if (bytes==0){ /* EOF -> bad, child has died */ LM_DBG("dead child %d, pid %d" " (shutting down?)\n", (int)(p-&pt[0]), p->pid); /* don't listen on it any more */ io_watch_del(&io_h, p->unix_sock, fd_i, 0); goto error; /* child dead => no further io events from it */ }else if (bytes<0){ /* EAGAIN is ok if we try to empty the buffer * e.g: SIGIO_RT overflow mode or EPOLL ET */ if ((errno!=EAGAIN) && (errno!=EWOULDBLOCK)){ LM_CRIT("read from child %d (pid %d): %s [%d]\n", (int)(p-&pt[0]), p->pid, strerror(errno), errno); ret=-1; }else{ ret=0; } /* try to ignore ? */ goto end; }else{ /* should never happen */ LM_CRIT("too few bytes received (%d)\n", bytes ); ret=0; /* something was read so there is no error; otoh if receive_fd returned less then requested => the receive buffer is empty => no more io queued on this fd */ goto end; } } ret=1; /* something was received, there might be more queued */ LM_DBG("read response= %lx, %ld, fd %d from %d (%d)\n", response[0], response[1], fd, (int)(p-&pt[0]), p->pid); cmd=response[1]; tcpconn=(struct tcp_connection*)response[0]; if (tcpconn==0){ LM_CRIT("null tcpconn pointer received from child %d (pid %d)" "%lx, %lx\n", (int)(p-&pt[0]), p->pid, response[0], response[1]) ; goto end; } switch(cmd){ case CONN_ERROR: if (!(tcpconn->flags & F_CONN_REMOVED) && (tcpconn->s!=-1)){ io_watch_del(&io_h, tcpconn->s, -1, IO_FD_CLOSING); tcpconn->flags|=F_CONN_REMOVED; } tcpconn_destroy(tcpconn); /* will close also the fd */ break; case CONN_GET_FD: /* send the requested FD */ /* WARNING: take care of setting refcnt properly to * avoid race condition */ if (send_fd(p->unix_sock, &tcpconn, sizeof(tcpconn), tcpconn->s)<=0){ LM_ERR("send_fd failed\n"); } break; case CONN_NEW: /* update the fd in the requested tcpconn*/ /* WARNING: take care of setting refcnt properly to * avoid race condition */ if (fd==-1){ LM_CRIT(" cmd CONN_NEW: no fd received\n"); break; } tcpconn->s=fd; /* add tcpconn to the list*/ tcpconn_add(tcpconn); /* update the timeout*/ tcpconn->timeout=get_ticks()+tcp_con_lifetime; io_watch_add(&io_h, tcpconn->s, F_TCPCONN, tcpconn); tcpconn->flags&=~F_CONN_REMOVED; break; default: LM_CRIT("unknown cmd %d\n", cmd); } end: return ret; error: return -1; }
/*! \brief tcp main loop */ void tcp_main_loop(void) { struct socket_info* si; int r; /* init io_wait (here because we want the memory allocated only in * the tcp_main process) */ /*! \todo FIXME: TODO: make tcp_max_fd_no a config param */ if (init_io_wait(&io_h, tcp_max_fd_no, tcp_poll_method)<0) goto error; /* init: start watching all the fds*/ /* add all the sockets we listens on for connections */ for (si=tcp_listen; si; si=si->next){ if ((si->proto==PROTO_TCP) &&(si->socket!=-1)){ if (io_watch_add(&io_h, si->socket, F_SOCKINFO, si)<0){ LM_CRIT("failed to add listen socket to the fd list\n"); goto error; } }else{ LM_CRIT("non tcp address in tcp_listen\n"); } } #ifdef USE_TLS if (!tls_disable){ for (si=tls_listen; si; si=si->next){ if ((si->proto==PROTO_TLS) && (si->socket!=-1)){ if (io_watch_add(&io_h, si->socket, F_SOCKINFO, si)<0){ LM_CRIT("failed to add tls listen socket to the fd list\n"); goto error; } }else{ LM_CRIT("non tls address in tls_listen\n"); } } } #endif /* add all the unix sockets used for communcation with other opensips * processes (get fd, new connection a.s.o) */ for (r=1; r<counted_processes; r++){ /* skip myslef (as process) and -1 socks (disabled) (we can't have 0, we never close it!) */ if (r!=process_no && pt[r].unix_sock>0) if (io_watch_add(&io_h, pt[r].unix_sock, F_PROC, &pt[r])<0){ LM_CRIT("failed to add process %d (%s) unix socket " "to the fd list\n", r, pt[r].desc); goto error; } } /* add all the unix sokets used for communication with the tcp childs */ for (r=0; r<tcp_children_no; r++){ if (tcp_children[r].unix_sock>0)/*we can't have 0, we never close it!*/ if (io_watch_add(&io_h, tcp_children[r].unix_sock, F_TCPCHILD, &tcp_children[r]) <0){ LM_CRIT("failed to add tcp child %d unix socket to " "the fd list\n", r); goto error; } } /* main loop */ switch(io_h.poll_method){ case POLL_POLL: while(1){ /* wait and process IO */ io_wait_loop_poll(&io_h, TCP_MAIN_SELECT_TIMEOUT, 0); /* remove old connections */ tcpconn_timeout(0); } break; #ifdef HAVE_SELECT case POLL_SELECT: while(1){ io_wait_loop_select(&io_h, TCP_MAIN_SELECT_TIMEOUT, 0); tcpconn_timeout(0); } break; #endif #ifdef HAVE_SIGIO_RT case POLL_SIGIO_RT: while(1){ io_wait_loop_sigio_rt(&io_h, TCP_MAIN_SELECT_TIMEOUT); tcpconn_timeout(0); } break; #endif #ifdef HAVE_EPOLL case POLL_EPOLL_LT: while(1){ io_wait_loop_epoll(&io_h, TCP_MAIN_SELECT_TIMEOUT, 0); tcpconn_timeout(0); } break; case POLL_EPOLL_ET: while(1){ io_wait_loop_epoll(&io_h, TCP_MAIN_SELECT_TIMEOUT, 1); tcpconn_timeout(0); } break; #endif #ifdef HAVE_KQUEUE case POLL_KQUEUE: while(1){ io_wait_loop_kqueue(&io_h, TCP_MAIN_SELECT_TIMEOUT, 0); tcpconn_timeout(0); } break; #endif #ifdef HAVE_DEVPOLL case POLL_DEVPOLL: while(1){ io_wait_loop_devpoll(&io_h, TCP_MAIN_SELECT_TIMEOUT, 0); tcpconn_timeout(0); } break; #endif default: LM_CRIT("no support for poll method %s (%d)\n", poll_method_name(io_h.poll_method), io_h.poll_method); goto error; } error: destroy_io_wait(&io_h); LM_CRIT("exiting..."); exit(-1); }
/*! \brief handles io from a tcp child process * \param tcp_c - pointer in the tcp_children array, to the entry for * which an io event was detected * \param fd_i - fd index in the fd_array (usefull for optimizing * io_watch_deletes) * \return handle_* return convention: -1 on error, 0 on EAGAIN (no more * io events queued), >0 on success. success/error refer only to * the reads from the fd. */ inline static int handle_tcp_child(struct tcp_child* tcp_c, int fd_i) { struct tcp_connection* tcpconn; long response[2]; int cmd; int bytes; if (tcp_c->unix_sock<=0){ /* (we can't have a fd==0, 0 is never closed )*/ LM_CRIT("fd %d for %d (pid %d, ser no %d)\n", tcp_c->unix_sock, (int)(tcp_c-&tcp_children[0]), tcp_c->pid, tcp_c->proc_no); goto error; } /* read until sizeof(response) * (this is a SOCK_STREAM so read is not atomic) */ bytes=recv_all(tcp_c->unix_sock, response, sizeof(response), MSG_DONTWAIT); if (bytes<(int)sizeof(response)){ if (bytes==0){ /* EOF -> bad, child has died */ LM_DBG("dead tcp child %d (pid %d, no %d)" " (shutting down?)\n", (int)(tcp_c-&tcp_children[0]), tcp_c->pid, tcp_c->proc_no ); /* don't listen on it any more */ io_watch_del(&io_h, tcp_c->unix_sock, fd_i, 0); goto error; /* eof. so no more io here, it's ok to return error */ }else if (bytes<0){ /* EAGAIN is ok if we try to empty the buffer * e.g.: SIGIO_RT overflow mode or EPOLL ET */ if ((errno!=EAGAIN) && (errno!=EWOULDBLOCK)){ LM_CRIT("read from tcp child %ld (pid %d, no %d) %s [%d]\n", (long)(tcp_c-&tcp_children[0]), tcp_c->pid, tcp_c->proc_no, strerror(errno), errno ); }else{ bytes=0; } /* try to ignore ? */ goto end; }else{ /* should never happen */ LM_CRIT("too few bytes received (%d)\n", bytes ); bytes=0; /* something was read so there is no error; otoh if receive_fd returned less then requested => the receive buffer is empty => no more io queued on this fd */ goto end; } } LM_DBG("reader response= %lx, %ld from %d \n", response[0], response[1], (int)(tcp_c-&tcp_children[0])); cmd=response[1]; tcpconn=(struct tcp_connection*)response[0]; if (tcpconn==0){ /* should never happen */ LM_CRIT("null tcpconn pointer received from tcp child %d (pid %d):" "%lx, %lx\n", (int)(tcp_c-&tcp_children[0]), tcp_c->pid, response[0], response[1]) ; goto end; } switch(cmd){ case CONN_RELEASE: tcp_c->busy--; if (tcpconn->state==S_CONN_BAD){ tcpconn_destroy(tcpconn); break; } /* update the timeout (lifetime) */ set_tcp_timeout( tcpconn ); tcpconn_put(tcpconn); /* must be after the de-ref*/ io_watch_add(&io_h, tcpconn->s, F_TCPCONN, tcpconn); tcpconn->flags&=~F_CONN_REMOVED; LM_DBG("cmd CONN_RELEASE %p refcnt= %d\n", tcpconn, tcpconn->refcnt); break; case CONN_ERROR: case CONN_DESTROY: case CONN_EOF: /* WARNING: this will auto-dec. refcnt! */ tcp_c->busy--; /* main doesn't listen on it => we don't have to delete it if (tcpconn->s!=-1) io_watch_del(&io_h, tcpconn->s, -1, IO_FD_CLOSING); */ tcpconn_destroy(tcpconn); /* closes also the fd */ break; default: LM_CRIT("unknown cmd %d from tcp reader %d\n", cmd, (int)(tcp_c-&tcp_children[0])); } end: return bytes; error: return -1; }
void tcp_receive_loop(int unix_sock) { /* init */ tcpmain_sock=unix_sock; /* init com. socket */ if (init_io_wait(&io_w, tcp_max_fd_no, tcp_poll_method)<0) goto error; /* add the unix socket */ if (io_watch_add(&io_w, tcpmain_sock, F_TCPMAIN, 0)<0){ LM_CRIT("failed to add socket to the fd list\n"); goto error; } /* main loop */ switch(io_w.poll_method){ case POLL_POLL: while(1){ io_wait_loop_poll(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0); tcp_receive_timeout(); } break; #ifdef HAVE_SELECT case POLL_SELECT: while(1){ io_wait_loop_select(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0); tcp_receive_timeout(); } break; #endif #ifdef HAVE_SIGIO_RT case POLL_SIGIO_RT: while(1){ io_wait_loop_sigio_rt(&io_w, TCP_CHILD_SELECT_TIMEOUT); tcp_receive_timeout(); } break; #endif #ifdef HAVE_EPOLL case POLL_EPOLL_LT: while(1){ io_wait_loop_epoll(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0); tcp_receive_timeout(); } break; case POLL_EPOLL_ET: while(1){ io_wait_loop_epoll(&io_w, TCP_CHILD_SELECT_TIMEOUT, 1); tcp_receive_timeout(); } break; #endif #ifdef HAVE_KQUEUE case POLL_KQUEUE: while(1){ io_wait_loop_kqueue(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0); tcp_receive_timeout(); } break; #endif #ifdef HAVE_DEVPOLL case POLL_DEVPOLL: while(1){ io_wait_loop_devpoll(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0); tcp_receive_timeout(); } break; #endif default: LM_CRIT("no support for poll method %s (%d)\n", poll_method_name(io_w.poll_method), io_w.poll_method); goto error; } error: destroy_io_wait(&io_w); LM_CRIT("exiting..."); exit(-1); }
/*! \brief * handle io routine, based on the fd_map type * (it will be called from io_wait_loop* ) * params: fm - pointer to a fd hash entry * idx - index in the fd_array (or -1 if not known) * return: -1 on error, or when we are not interested any more on reads * from this fd (e.g.: we are closing it ) * 0 on EAGAIN or when by some other way it is known that no more * io events are queued on the fd (the receive buffer is empty). * Usefull to detect when there are no more io events queued for * sigio_rt, epoll_et, kqueue. * >0 on successfull read from the fd (when there might be more io * queued -- the receive buffer might still be non-empty) */ inline static int handle_io(struct fd_map* fm, int idx) { int ret; int n; struct tcp_connection* con; int s; long resp; switch(fm->type){ case F_TCPMAIN: again: ret=n=receive_fd(fm->fd, &con, sizeof(con), &s, 0); LM_DBG("received n=%d con=%p, fd=%d\n", n, con, s); if (n<0){ if (errno == EWOULDBLOCK || errno == EAGAIN){ ret=0; break; }else if (errno == EINTR) goto again; else{ LM_CRIT("read_fd: %s \n", strerror(errno)); abort(); /* big error*/ } } if (n==0){ LM_WARN("0 bytes read\n"); break; } if (con==0){ LM_CRIT("null pointer\n"); break; } con->fd=s; if (s==-1) { LM_ERR("read_fd:no fd read\n"); goto con_error; } if (con==tcp_conn_lst){ LM_CRIT("duplicate" " connection received: %p, id %d, fd %d, refcnt %d" " state %d (n=%d)\n", con, con->id, con->fd, con->refcnt, con->state, n); release_tcpconn(con, CONN_ERROR, tcpmain_sock); break; /* try to recover */ } /* reset the per process TCP req struct */ init_tcp_req(¤t_req); /* 0 attempts so far for this SIP MSG */ con->msg_attempts = 0; /* must be before io_watch_add, io_watch_add might catch some * already existing events => might call handle_io and * handle_io might decide to del. the new connection => * must be in the list */ tcpconn_listadd(tcp_conn_lst, con, c_next, c_prev); con->timeout=get_ticks()+TCP_CHILD_MAX_MSG_TIME; if (io_watch_add(&io_w, s, F_TCPCONN, con)<0){ LM_CRIT("failed to add new socket to the fd list\n"); tcpconn_listrm(tcp_conn_lst, con, c_next, c_prev); goto con_error; } break; case F_TCPCONN: con=(struct tcp_connection*)fm->data; resp=tcp_read_req(con, &ret); if (resp<0) { ret=-1; /* some error occured */ io_watch_del(&io_w, con->fd, idx, IO_FD_CLOSING); tcpconn_listrm(tcp_conn_lst, con, c_next, c_prev); con->state=S_CONN_BAD; release_tcpconn(con, resp, tcpmain_sock); } break; case F_NONE: LM_CRIT("empty fd map %p (%d): " "{%d, %d, %p}\n", fm, (int)(fm-io_w.fd_hash), fm->fd, fm->type, fm->data); goto error; default: LM_CRIT("uknown fd type %d\n", fm->type); goto error; } return ret; con_error: con->state=S_CONN_BAD; release_tcpconn(con, CONN_ERROR, fm->fd); return ret; error: return -1; }
void tcp_receive_loop(int unix_sock) { /* init */ tcpmain_sock=unix_sock; /* init com. socket */ if (init_io_wait(&io_w, get_max_open_fds(), tcp_poll_method)<0) goto error; tcp_reader_prev_ticks=get_ticks_raw(); if (init_local_timer(&tcp_reader_ltimer, get_ticks_raw())!=0) goto error; /* add the unix socket */ if (io_watch_add(&io_w, tcpmain_sock, POLLIN, F_TCPMAIN, 0)<0){ LM_CRIT("failed to add socket to the fd list\n"); goto error; } /* initialize the config framework */ if (cfg_child_init()) goto error; /* main loop */ switch(io_w.poll_method){ case POLL_POLL: while(1){ io_wait_loop_poll(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0); tcp_reader_timer_run(); } break; #ifdef HAVE_SELECT case POLL_SELECT: while(1){ io_wait_loop_select(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0); tcp_reader_timer_run(); } break; #endif #ifdef HAVE_SIGIO_RT case POLL_SIGIO_RT: while(1){ io_wait_loop_sigio_rt(&io_w, TCP_CHILD_SELECT_TIMEOUT); tcp_reader_timer_run(); } break; #endif #ifdef HAVE_EPOLL case POLL_EPOLL_LT: while(1){ io_wait_loop_epoll(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0); tcp_reader_timer_run(); } break; case POLL_EPOLL_ET: while(1){ io_wait_loop_epoll(&io_w, TCP_CHILD_SELECT_TIMEOUT, 1); tcp_reader_timer_run(); } break; #endif #ifdef HAVE_KQUEUE case POLL_KQUEUE: while(1){ io_wait_loop_kqueue(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0); tcp_reader_timer_run(); } break; #endif #ifdef HAVE_DEVPOLL case POLL_DEVPOLL: while(1){ io_wait_loop_devpoll(&io_w, TCP_CHILD_SELECT_TIMEOUT, 0); tcp_reader_timer_run(); } break; #endif default: LM_CRIT("no support for poll method %s (%d)\n", poll_method_name(io_w.poll_method), io_w.poll_method); goto error; } error: destroy_io_wait(&io_w); LM_CRIT("exiting..."); exit(-1); }
/* handle io routine, based on the fd_map type * (it will be called from io_wait_loop* ) * params: fm - pointer to a fd hash entry * idx - index in the fd_array (or -1 if not known) * return: -1 on error, or when we are not interested any more on reads * from this fd (e.g.: we are closing it ) * 0 on EAGAIN or when by some other way it is known that no more * io events are queued on the fd (the receive buffer is empty). * Usefull to detect when there are no more io events queued for * sigio_rt, epoll_et, kqueue. * >0 on successfull read from the fd (when there might be more io * queued -- the receive buffer might still be non-empty) */ inline static int handle_io(struct fd_map* fm, short events, int idx) { int ret; int n; int read_flags; struct tcp_connection* con; int s; long resp; ticks_t t; /* update the local config */ cfg_update(); switch(fm->type){ case F_TCPMAIN: again: ret=n=receive_fd(fm->fd, &con, sizeof(con), &s, 0); LM_DBG("received n=%d con=%p, fd=%d\n", n, con, s); if (unlikely(n<0)){ if (errno == EWOULDBLOCK || errno == EAGAIN){ ret=0; break; }else if (errno == EINTR) goto again; else{ LM_CRIT("read_fd: %s \n", strerror(errno)); abort(); /* big error*/ } } if (unlikely(n==0)){ LM_ERR("0 bytes read\n"); goto error; } if (unlikely(con==0)){ LM_CRIT("null pointer\n"); goto error; } con->fd=s; if (unlikely(s==-1)) { LM_ERR("read_fd: no fd read\n"); goto con_error; } con->reader_pid=my_pid(); if (unlikely(con==tcp_conn_lst)){ LM_CRIT("duplicate connection received: %p, id %d, fd %d, refcnt %d" " state %d (n=%d)\n", con, con->id, con->fd, atomic_get(&con->refcnt), con->state, n); goto con_error; break; /* try to recover */ } if (unlikely(con->state==S_CONN_BAD)){ LM_WARN("received an already bad connection: %p id %d refcnt %d\n", con, con->id, atomic_get(&con->refcnt)); goto con_error; } /* if we received the fd there is most likely data waiting to * be read => process it first to avoid extra sys calls */ read_flags=((con->flags & (F_CONN_EOF_SEEN|F_CONN_FORCE_EOF)) && !(con->flags & F_CONN_OOB_DATA))? RD_CONN_FORCE_EOF :0; #ifdef USE_TLS repeat_1st_read: #endif /* USE_TLS */ resp=tcp_read_req(con, &n, &read_flags); if (unlikely(resp<0)){ /* some error occured, but on the new fd, not on the tcp * main fd, so keep the ret value */ if (unlikely(resp!=CONN_EOF)) con->state=S_CONN_BAD; LM_WARN("%s:%d %s releasing\n", __FILE__, __LINE__, __PRETTY_FUNCTION__); release_tcpconn(con, resp, tcpmain_sock); break; } #ifdef USE_TLS /* repeat read if requested (for now only tls might do this) */ if (unlikely(read_flags & RD_CONN_REPEAT_READ)) goto repeat_1st_read; #endif /* USE_TLS */ /* must be before io_watch_add, io_watch_add might catch some * already existing events => might call handle_io and * handle_io might decide to del. the new connection => * must be in the list */ tcpconn_listadd(tcp_conn_lst, con, c_next, c_prev); t=get_ticks_raw(); con->timeout=t+S_TO_TICKS(TCP_CHILD_TIMEOUT); /* re-activate the timer */ con->timer.f=tcpconn_read_timeout; local_timer_reinit(&con->timer); local_timer_add(&tcp_reader_ltimer, &con->timer, S_TO_TICKS(TCP_CHILD_TIMEOUT), t); if (unlikely(io_watch_add(&io_w, s, POLLIN, F_TCPCONN, con)<0)){ LM_CRIT("io_watch_add failed for %p id %d fd %d, state %d, flags %x," " main fd %d, refcnt %d\n", con, con->id, con->fd, con->state, con->flags, con->s, atomic_get(&con->refcnt)); tcpconn_listrm(tcp_conn_lst, con, c_next, c_prev); local_timer_del(&tcp_reader_ltimer, &con->timer); goto con_error; } break; case F_TCPCONN: con=(struct tcp_connection*)fm->data; if (unlikely(con->state==S_CONN_BAD)){ resp=CONN_ERROR; if (!(con->send_flags.f & SND_F_CON_CLOSE)) LM_WARN("F_TCPCONN connection marked as bad: %p id %d refcnt %d\n", con, con->id, atomic_get(&con->refcnt)); goto read_error; } read_flags=(( #ifdef POLLRDHUP (events & POLLRDHUP) | #endif /* POLLRDHUP */ (events & (POLLHUP|POLLERR)) | (con->flags & (F_CONN_EOF_SEEN|F_CONN_FORCE_EOF))) && !(events & POLLPRI))? RD_CONN_FORCE_EOF: 0; #ifdef USE_TLS repeat_read: #endif /* USE_TLS */ resp=tcp_read_req(con, &ret, &read_flags); if (unlikely(resp<0)){ read_error: ret=-1; /* some error occured */ if (unlikely(io_watch_del(&io_w, con->fd, idx, IO_FD_CLOSING) < 0)){ LM_CRIT("io_watch_del failed for %p id %d fd %d," " state %d, flags %x, main fd %d, refcnt %d\n", con, con->id, con->fd, con->state, con->flags, con->s, atomic_get(&con->refcnt)); } tcpconn_listrm(tcp_conn_lst, con, c_next, c_prev); local_timer_del(&tcp_reader_ltimer, &con->timer); if (unlikely(resp!=CONN_EOF)) con->state=S_CONN_BAD; LM_WARN("%s:%d %s releasing\n", __FILE__, __LINE__, __PRETTY_FUNCTION__); release_tcpconn(con, resp, tcpmain_sock); }else{ #ifdef USE_TLS if (unlikely(read_flags & RD_CONN_REPEAT_READ)) goto repeat_read; #endif /* USE_TLS */ /* update timeout */ con->timeout=get_ticks_raw()+S_TO_TICKS(TCP_CHILD_TIMEOUT); /* ret= 0 (read the whole socket buffer) if short read & * !POLLPRI, bytes read otherwise */ ret&=(((read_flags & RD_CONN_SHORT_READ) && !(events & POLLPRI)) - 1); } break; case F_NONE: LM_CRIT("empty fd map %p (%d): {%d, %d, %p}\n", fm, (int)(fm-io_w.fd_hash), fm->fd, fm->type, fm->data); goto error; default: LM_CRIT("uknown fd type %d\n", fm->type); goto error; } return ret; con_error: con->state=S_CONN_BAD; LM_WARN("%s:%d %s releasing\n", __FILE__, __LINE__, __PRETTY_FUNCTION__); release_tcpconn(con, CONN_ERROR, tcpmain_sock); return ret; error: return -1; }