/* This file is part of Pazpar2.
- Copyright (C) 2006-2010 Index Data
+ 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 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.
+ 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
+ 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
-*/
+ */
/*
* Based on ParaZ - a simple tool for harvesting performance data for
#include <config.h>
#endif
+#include <math.h>
#include <stdio.h>
#include <assert.h>
#include <yaz/log.h>
#include <yaz/comstack.h>
#include <yaz/xmalloc.h>
+#include <yaz/mutex.h>
+#include <yaz/poll.h>
#include "eventl.h"
#include "sel_thread.h"
int sel_fd;
int no_threads;
int log_level;
+ YAZ_MUTEX iochan_mutex;
};
-iochan_man_t iochan_man_create(int no_threads)
-{
+iochan_man_t iochan_man_create(int no_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->no_threads = no_threads;
- man->log_level = YLOG_DEBUG;
+ man->log_level = yaz_log_module_level("iochan");
+ man->iochan_mutex = 0;
+ yaz_mutex_create(&man->iochan_mutex);
return man;
}
-void iochan_man_destroy(iochan_man_t *mp)
-{
- if (*mp)
- {
+void iochan_man_destroy(iochan_man_t *mp) {
+ if (*mp) {
IOCHAN c;
if ((*mp)->sel_thread)
sel_thread_destroy((*mp)->sel_thread);
-
+
+ yaz_mutex_enter((*mp)->iochan_mutex);
c = (*mp)->channel_list;
- while (c)
- {
+ (*mp)->channel_list = NULL;
+ yaz_mutex_leave((*mp)->iochan_mutex);
+ while (c) {
IOCHAN c_next = c->next;
+ xfree(c->name);
xfree(c);
c = c_next;
}
+ yaz_mutex_destroy(&(*mp)->iochan_mutex);
xfree(*mp);
*mp = 0;
}
}
-void iochan_add(iochan_man_t man, IOCHAN chan)
-{
+void iochan_add(iochan_man_t man, IOCHAN chan) {
chan->man = man;
+ yaz_mutex_enter(man->iochan_mutex);
+ yaz_log(man->log_level, "iochan_add : chan=%p channel list=%p", chan,
+ man->channel_list);
chan->next = man->channel_list;
man->channel_list = chan;
+ yaz_mutex_leave(man->iochan_mutex);
}
-IOCHAN iochan_create(int fd, IOC_CALLBACK cb, int flags)
-{
+IOCHAN iochan_create(int fd, IOC_CALLBACK cb, int flags, const char *name) {
IOCHAN new_iochan;
- if (!(new_iochan = (IOCHAN)xmalloc(sizeof(*new_iochan))))
- return 0;
+ if (!(new_iochan = (IOCHAN) xmalloc(sizeof(*new_iochan))))
+ return 0;
new_iochan->destroyed = 0;
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;
+ new_iochan->name = name ? xstrdup(name) : 0;
return new_iochan;
}
-static void work_handler(void *work_data)
-{
+static void work_handler(void *work_data) {
IOCHAN p = work_data;
+
+ yaz_log(p->man->log_level, "eventl: work begin chan=%p name=%s event=%d",
+ p, p->name ? p->name : "", p->this_event);
+
if (!p->destroyed && (p->this_event & EVENT_TIMEOUT))
(*p->fun)(p, EVENT_TIMEOUT);
if (!p->destroyed && (p->this_event & EVENT_INPUT))
(*p->fun)(p, EVENT_OUTPUT);
if (!p->destroyed && (p->this_event & EVENT_EXCEPT))
(*p->fun)(p, EVENT_EXCEPT);
+
+ yaz_log(p->man->log_level, "eventl: work end chan=%p name=%s event=%d", p,
+ p->name ? p->name : "", p->this_event);
}
-static void run_fun(iochan_man_t man, IOCHAN p)
-{
- if (p->this_event)
- {
- if (man->sel_thread)
- {
- yaz_log(man->log_level, "eventl: add fun chan=%p event=%d",
- p, p->this_event);
+static void run_fun(iochan_man_t man, IOCHAN p) {
+ if (p->this_event) {
+ if (man->sel_thread) {
+ yaz_log(man->log_level,
+ "eventl: work add chan=%p name=%s event=%d", p,
+ p->name ? p->name : "", p->this_event);
p->thread_users++;
sel_thread_add(man->sel_thread, p);
- }
- else
+ } else
work_handler(p);
}
}
-static int event_loop(iochan_man_t man, IOCHAN *iochans)
-{
+static int event_loop(iochan_man_t man, IOCHAN *iochans) {
do /* loop as long as there are active associations to process */
{
- IOCHAN p, *nextp;
- fd_set in, out, except;
- int res, max;
- static struct timeval nullto = {0, 0}, to;
- struct timeval *timeout;
-
- FD_ZERO(&in);
- FD_ZERO(&out);
- FD_ZERO(&except);
- timeout = &to; /* hang on select */
- to.tv_sec = 300;
- to.tv_usec = 0;
- max = 0;
- for (p = *iochans; p; p = p->next)
- {
+ IOCHAN p, *nextp;
+ IOCHAN start;
+ IOCHAN inv_start;
+ fd_set in, out, except;
+ int res, max;
+ static struct timeval to;
+ struct timeval *timeout;
+
+// struct yaz_poll_fd *fds;
+ int no_fds = 0;
+ FD_ZERO(&in);
+ FD_ZERO(&out);
+ FD_ZERO(&except);
+ timeout = &to; /* hang on select */
+ to.tv_sec = 300;
+ to.tv_usec = 0;
+
+ // INV: start must no change through the loop
+
+ yaz_mutex_enter(man->iochan_mutex);
+ start = man->channel_list;
+ yaz_mutex_leave(man->iochan_mutex);
+ inv_start = start;
+ for (p = start; p; p = p->next) {
+ no_fds++;
+ }
+// fds = (struct yaz_poll_fd *) xmalloc(no_fds * sizeof(*fds));
+
+ max = 0;
+ for (p = start; 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->max_idle && p->max_idle < to.tv_sec)
to.tv_sec = p->max_idle;
if (p->fd < 0)
continue;
- if (p->force_event)
- timeout = &nullto; /* polling select */
- if (p->flags & EVENT_INPUT)
- FD_SET(p->fd, &in);
- if (p->flags & EVENT_OUTPUT)
- FD_SET(p->fd, &out);
- if (p->flags & EVENT_EXCEPT)
- FD_SET(p->fd, &except);
- if (p->fd > max)
- max = p->fd;
- }
- if (man->sel_fd != -1)
- {
+ if (p->flags & EVENT_INPUT)
+ FD_SET(p->fd, &in);
+ if (p->flags & EVENT_OUTPUT)
+ FD_SET(p->fd, &out);
+ if (p->flags & EVENT_EXCEPT)
+ FD_SET(p->fd, &except);
+ if (p->fd > max)
+ max = p->fd;
+ }
+ yaz_log(man->log_level, "max=%d sel_fd=%d", max, man->sel_fd);
+
+ if (man->sel_fd != -1) {
if (man->sel_fd > max)
max = man->sel_fd;
- yaz_log(man->log_level, "select on sel fd=%d", man->sel_fd);
FD_SET(man->sel_fd, &in);
}
- yaz_log(man->log_level, "select begin");
+ yaz_log(man->log_level, "select begin nofds=%d", max);
res = select(max + 1, &in, &out, &except, timeout);
yaz_log(man->log_level, "select returned res=%d", res);
- if (res < 0)
- {
- if (errno == EINTR)
- continue;
- else
- {
- yaz_log(YLOG_ERRNO|YLOG_WARN, "select");
+ if (res < 0) {
+ if (errno == EINTR)
+ continue;
+ else {
+ yaz_log(YLOG_ERRNO | YLOG_WARN, "select");
return 0;
}
- }
- if (man->sel_fd != -1)
- {
- if (FD_ISSET(man->sel_fd, &in))
- {
+ }
+ if (man->sel_fd != -1) {
+ if (FD_ISSET(man->sel_fd, &in)) {
IOCHAN chan;
yaz_log(man->log_level, "eventl: sel input on sel_fd=%d",
man->sel_fd);
- while ((chan = sel_thread_result(man->sel_thread)))
- {
- yaz_log(man->log_level, "eventl: got thread result p=%p",
- chan);
+ while ((chan = sel_thread_result(man->sel_thread))) {
+ yaz_log(man->log_level,
+ "eventl: got thread result chan=%p name=%s", chan,
+ chan->name ? chan->name : "");
chan->thread_users--;
}
}
}
- for (p = *iochans; p; p = p->next)
- {
- int force_event = p->force_event;
+ if (man->log_level) {
+ int no = 0;
+ for (p = start; p; p = p->next) {
+ no++;
+ }
+ yaz_log(man->log_level, "%d channels", no);
+ }
+ for (p = start; p; p = p->next) {
time_t now = time(0);
-
- if (p->thread_users > 0 || p->destroyed)
- {
- yaz_log(man->log_level, "eventl: skip chan=%p users=%d", p, p->thread_users);
+
+ if (p->destroyed) {
+ yaz_log(man->log_level,
+ "eventl: skip destroyed chan=%p name=%s", p,
+ p->name ? p->name : "");
+ continue;
+ }
+ if (p->thread_users > 0) {
+ yaz_log(man->log_level,
+ "eventl: skip chan=%p name=%s users=%d", p,
+ p->name ? p->name : "", p->thread_users);
continue;
}
p->this_event = 0;
- p->force_event = 0;
- if ((p->max_idle && now - p->last_event > p->max_idle)
- || force_event == EVENT_TIMEOUT)
- {
+ if (p->max_idle && now - p->last_event > p->max_idle) {
p->last_event = now;
p->this_event |= EVENT_TIMEOUT;
}
- if (p->fd >= 0)
- {
- if (FD_ISSET(p->fd, &in) || force_event == EVENT_INPUT)
- {
+ if (p->fd >= 0) {
+ if (FD_ISSET(p->fd, &in)) {
p->last_event = now;
- yaz_log(YLOG_DEBUG, "Eventl input event");
p->this_event |= EVENT_INPUT;
}
- if (FD_ISSET(p->fd, &out) || force_event == EVENT_OUTPUT)
- {
+ if (FD_ISSET(p->fd, &out)) {
p->last_event = now;
- yaz_log(YLOG_DEBUG, "Eventl output event");
p->this_event |= EVENT_OUTPUT;
}
- if (FD_ISSET(p->fd, &except) || force_event == EVENT_EXCEPT)
- {
+ if (FD_ISSET(p->fd, &except)) {
p->last_event = now;
p->this_event |= EVENT_EXCEPT;
}
}
run_fun(man, p);
- }
- for (nextp = iochans; *nextp; )
- {
+ }
+ assert(inv_start == start);
+ yaz_mutex_enter(man->iochan_mutex);
+ for (nextp = iochans; *nextp;) {
IOCHAN p = *nextp;
- if (p->destroyed && p->thread_users == 0)
- {
+ if (p->destroyed && p->thread_users == 0) {
*nextp = p->next;
+ xfree(p->name);
xfree(p);
- }
- else
+ } else
nextp = &p->next;
}
- }
- while (*iochans);
+ yaz_mutex_leave(man->iochan_mutex);
+ } while (*iochans);
return 0;
}
-void iochan_man_events(iochan_man_t man)
-{
- if (man->no_threads > 0 && !man->sel_thread)
- {
- man->sel_thread = sel_thread_create(
- work_handler, 0 /*work_destroy */, &man->sel_fd, man->no_threads);
+void iochan_man_events(iochan_man_t man) {
+ if (man->no_threads > 0 && !man->sel_thread) {
+ man->sel_thread = sel_thread_create(work_handler, 0 /*work_destroy */,
+ &man->sel_fd, man->no_threads);
yaz_log(man->log_level, "iochan_man_events. Using %d threads",
man->no_threads);
}
event_loop(man, &man->channel_list);
}
+void pazpar2_sleep(double d) {
+#ifdef WIN32
+ Sleep( (DWORD) (d * 1000));
+#else
+ struct timeval tv;
+ tv.tv_sec = floor(d);
+ tv.tv_usec = (d - floor(d)) * 1000000;
+ select(0, 0, 0, 0, &tv);
+#endif
+}
+
/*
* Local variables:
* c-basic-offset: 4