X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=src%2Feventl.c;h=3a74751a28db7e6dfe0be461392a3cf8e0844816;hb=80efa0b009565fd772664f177dcd56af81e186a1;hp=324dca194871a636a4804bb6890a004599453839;hpb=fe3383c0559a453df1e5076fc6faac6d1a11685c;p=pazpar2-moved-to-github.git diff --git a/src/eventl.c b/src/eventl.c index 324dca1..3a74751 100644 --- a/src/eventl.c +++ b/src/eventl.c @@ -1,22 +1,49 @@ +/* This file is part of Pazpar2. + Copyright (C) 2006-2010 Index Data + +Pazpar2 is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 2, or (at your option) any later +version. + +Pazpar2 is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + +*/ + /* - * ParaZ - a simple tool for harvesting performance data for parallel - * operations using Z39.50. - * Copyright (c) 2000-2004 Index Data ApS + * Based on ParaZ - a simple tool for harvesting performance data for + * parallel operations using Z39.50. + * Copyright (C) 2006-2010 Index Data ApS * See LICENSE file for details. */ /* - * $Id: eventl.c,v 1.1 2006-12-20 20:47:16 quinn Exp $ * Based on revision YAZ' server/eventl.c 1.29. */ +#if HAVE_CONFIG_H +#include +#endif + #include #include + #ifdef WIN32 #include #else #include #endif +#if HAVE_SYS_TIME_H +#include +#endif + #include #include #include @@ -26,7 +53,42 @@ #include #include #include "eventl.h" -#include +#include "sel_thread.h" + +struct iochan_man_s { + IOCHAN channel_list; + sel_thread_t sel_thread; + int sel_fd; + int use_threads; +}; + +iochan_man_t iochan_man_create(int use_threads) +{ + iochan_man_t man = xmalloc(sizeof(*man)); + man->channel_list = 0; + man->sel_thread = 0; /* can't create sel_thread yet because we may fork */ + man->sel_fd = -1; + man->use_threads = use_threads; + return man; +} + +void iochan_man_destroy(iochan_man_t *mp) +{ + if (*mp) + { + if ((*mp)->sel_thread) + sel_thread_destroy((*mp)->sel_thread); + xfree(*mp); + *mp = 0; + } +} + +void iochan_add(iochan_man_t man, IOCHAN chan) +{ + chan->man = man; + chan->next = man->channel_list; + man->channel_list = chan; +} IOCHAN iochan_create(int fd, IOC_CALLBACK cb, int flags) { @@ -38,13 +100,40 @@ IOCHAN iochan_create(int fd, IOC_CALLBACK cb, int flags) new_iochan->fd = fd; new_iochan->flags = flags; new_iochan->fun = cb; + new_iochan->socketfun = NULL; + new_iochan->maskfun = NULL; new_iochan->force_event = 0; new_iochan->last_event = new_iochan->max_idle = 0; new_iochan->next = NULL; + new_iochan->man = 0; + new_iochan->thread_users = 0; return new_iochan; } -int event_loop(IOCHAN *iochans) +static void work_handler(void *work_data) +{ + IOCHAN p = work_data; + (*p->fun)(p, p->this_event); +} + +static void run_fun(iochan_man_t man, IOCHAN p, int event) +{ + if (!p->destroyed) + { + p->this_event = event; + if (man->sel_thread) + { + yaz_log(YLOG_LOG, "eventl: add fun chan=%p event=%d", + p, event); + p->thread_users++; + sel_thread_add(man->sel_thread, p); + } + else + (*p->fun)(p, p->this_event); + } +} + +static int event_loop(iochan_man_t man, IOCHAN *iochans) { do /* loop as long as there are active associations to process */ { @@ -58,11 +147,17 @@ int event_loop(IOCHAN *iochans) FD_ZERO(&out); FD_ZERO(&except); timeout = &to; /* hang on select */ - to.tv_sec = 30; + to.tv_sec = 15; to.tv_usec = 0; max = 0; for (p = *iochans; p; p = p->next) { + if (p->thread_users > 0) + continue; + if (p->maskfun) + p->flags = (*p->maskfun)(p); + if (p->socketfun) + p->fd = (*p->socketfun)(p); if (p->fd < 0) continue; if (p->force_event) @@ -75,14 +170,45 @@ int event_loop(IOCHAN *iochans) FD_SET(p->fd, &except); if (p->fd > max) max = p->fd; + if (p->max_idle && p->max_idle < to.tv_sec) + to.tv_sec = p->max_idle; } - if ((res = select(max + 1, &in, &out, &except, timeout)) < 0) + if (man->sel_fd != -1) + { + if (man->sel_fd > max) + max = man->sel_fd; + yaz_log(YLOG_LOG, "select on sel fd=%d", man->sel_fd); + FD_SET(man->sel_fd, &in); + } + yaz_log(YLOG_LOG, "select begin"); + res = select(max + 1, &in, &out, &except, timeout); + yaz_log(YLOG_LOG, "select returned res=%d", res); + if (res < 0) { if (errno == EINTR) continue; else - abort(); + { + yaz_log(YLOG_ERRNO|YLOG_WARN, "select"); + return 0; + } } + if (man->sel_fd != -1) + { + if (FD_ISSET(man->sel_fd, &in)) + { + IOCHAN chan; + + yaz_log(YLOG_LOG, "eventl: sel input on sel_fd=%d", + man->sel_fd); + while ((chan = sel_thread_result(man->sel_thread))) + { + yaz_log(YLOG_LOG, "eventl: got thread result p=%p", + chan); + chan->thread_users--; + } + } + } for (p = *iochans; p; p = p->next) { int force_event = p->force_event; @@ -93,7 +219,7 @@ int event_loop(IOCHAN *iochans) p->max_idle) || force_event == EVENT_TIMEOUT)) { p->last_event = now; - (*p->fun)(p, EVENT_TIMEOUT); + run_fun(man, p, EVENT_TIMEOUT); } if (p->fd < 0) continue; @@ -101,19 +227,21 @@ int event_loop(IOCHAN *iochans) force_event == EVENT_INPUT)) { p->last_event = now; - (*p->fun)(p, EVENT_INPUT); + yaz_log(YLOG_DEBUG, "Eventl input event"); + run_fun(man, p, EVENT_INPUT); } if (!p->destroyed && (FD_ISSET(p->fd, &out) || force_event == EVENT_OUTPUT)) { p->last_event = now; - (*p->fun)(p, EVENT_OUTPUT); + yaz_log(YLOG_DEBUG, "Eventl output event"); + run_fun(man, p, EVENT_OUTPUT); } if (!p->destroyed && (FD_ISSET(p->fd, &except) || force_event == EVENT_EXCEPT)) { p->last_event = now; - (*p->fun)(p, EVENT_EXCEPT); + run_fun(man, p, EVENT_EXCEPT); } } for (p = *iochans; p; p = nextp) @@ -145,10 +273,23 @@ int event_loop(IOCHAN *iochans) return 0; } +void iochan_man_events(iochan_man_t man) +{ + if (man->use_threads && !man->sel_thread) + { + man->sel_thread = sel_thread_create( + work_handler, 0 /*work_destroy */, &man->sel_fd, 10); + yaz_log(YLOG_LOG, "iochan_man_events. sel_thread started"); + } + event_loop(man, &man->channel_list); +} + /* * Local variables: * c-basic-offset: 4 + * c-file-style: "Stroustrup" * indent-tabs-mode: nil * End: * vim: shiftwidth=4 tabstop=8 expandtab */ +