-/*
- * Copyright (C) 1995-2007, Index Data ApS
+/* This file is part of the YAZ toolkit.
+ * Copyright (C) Index Data
* See the file LICENSE for details.
- *
- * $Id: zoom-socket.c,v 1.4 2007-05-06 20:12:20 adam Exp $
*/
/**
* \file zoom-socket.c
* \brief Implements ZOOM C socket interface.
*/
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
#include <assert.h>
#include <string.h>
#if HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
-#if HAVE_SYS_POLL_H
-#include <sys/poll.h>
-#endif
-#if HAVE_SYS_SELECT_H
-#include <sys/select.h>
-#endif
-#ifdef WIN32
-#if FD_SETSIZE < 512
-#define FD_SETSIZE 512
-#endif
-#include <winsock.h>
-#endif
+#include <yaz/poll.h>
-/*
- * Note that ZOOM_event_sys_select() is limited as to how many file
- * descriptors it can multiplex due to its use of select() which in
- * turn uses the statically defined fd_set type to be a bitmap of the
- * file descriptors to check. On Ubuntu 6.06 (and almost certainly on
- * Debian, and probably on all Linuxes, and maybe all Unixes) this is
- * by default set to 1024 (though it may be possible to override this
- * using a #define before including <sys/select.h> -- I've not tried
- * this). 1024 file descriptors is a lot, but not enough in all
- * cases, e.g. when running IRSpy on a large target database. So you
- * should ensure that YAZ uses ZOOM_event_sys_poll() when possible.
- */
ZOOM_API(int)
- ZOOM_event_sys_select(int no, ZOOM_connection *cs)
+ ZOOM_event_sys_yaz_poll(int no, ZOOM_connection *cs)
{
- struct timeval tv;
- fd_set input, output, except;
- int i, r;
- int max_fd = 0;
- int timeout = 30;
- int nfds = 0;
-
- FD_ZERO(&input);
- FD_ZERO(&output);
- FD_ZERO(&except);
-
- for (i = 0; i<no; i++)
- {
- ZOOM_connection c = cs[i];
- int fd, mask;
-
- if (!c)
- continue;
- fd = ZOOM_connection_get_socket(c);
- mask = ZOOM_connection_get_mask(c);
- timeout = ZOOM_connection_get_timeout(c);
-
- if (fd == -1)
- continue;
- if (max_fd < fd)
- max_fd = fd;
-
- if (mask & ZOOM_SELECT_READ)
- FD_SET(fd, &input);
- if (mask & ZOOM_SELECT_WRITE)
- FD_SET(fd, &output);
- if (mask & ZOOM_SELECT_EXCEPT)
- FD_SET(fd, &except);
- if (mask)
- nfds++;
- }
- if (nfds == 0)
- return 0;
-
- tv.tv_sec = timeout;
- tv.tv_usec = 0;
-
- while ((r = select(max_fd+1, &input, &output, &except,
- (timeout == -1 ? 0 : &tv))) < 0 && errno == EINTR)
- {
- ;
- }
- if (r < 0)
- {
- yaz_log(YLOG_WARN|YLOG_ERRNO, "ZOOM_event_sys_select");
- return r;
- }
-
- for (i = 0; i<no; i++)
- {
- ZOOM_connection c = cs[i];
- int fd, mask;
-
- if (!c)
- continue;
- fd = ZOOM_connection_get_socket(c);
- mask = 0;
- if (r)
- {
- /* no timeout and real socket */
- if (FD_ISSET(fd, &input))
- mask += ZOOM_SELECT_READ;
- if (FD_ISSET(fd, &output))
- mask += ZOOM_SELECT_WRITE;
- if (FD_ISSET(fd, &except))
- mask += ZOOM_SELECT_EXCEPT;
- if (mask)
- ZOOM_connection_fire_event_socket(c, mask);
- }
- else
- ZOOM_connection_fire_event_timeout(c);
- }
- return r;
-}
-
-#if HAVE_SYS_POLL_H
-ZOOM_API(int)
- ZOOM_event_sys_poll(int no, ZOOM_connection *cs)
-{
- struct pollfd *pollfds = (struct pollfd *) xmalloc(no * sizeof *pollfds);
- ZOOM_connection *poll_cs = (ZOOM_connection *)
- xmalloc(no * sizeof *poll_cs);
+ struct yaz_poll_fd *yp = (struct yaz_poll_fd *) xmalloc(sizeof(*yp) * no);
int i, r;
int nfds = 0;
int timeout = 30;
- for (i = 0; i<no; i++)
+ for (i = 0; i < no; i++)
{
ZOOM_connection c = cs[i];
int fd, mask;
-
+
if (!c)
continue;
fd = ZOOM_connection_get_socket(c);
continue;
if (mask)
{
- short poll_events = 0;
+ enum yaz_poll_mask input_mask = yaz_poll_none;
if (mask & ZOOM_SELECT_READ)
- poll_events += POLLIN;
+ yaz_poll_add(input_mask, yaz_poll_read);
if (mask & ZOOM_SELECT_WRITE)
- poll_events += POLLOUT;
+ yaz_poll_add(input_mask, yaz_poll_write);
if (mask & ZOOM_SELECT_EXCEPT)
- poll_events += POLLERR;
- pollfds[nfds].fd = fd;
- pollfds[nfds].events = poll_events;
- pollfds[nfds].revents = 0;
- poll_cs[nfds] = c;
+ yaz_poll_add(input_mask, yaz_poll_except);
+ yp[nfds].fd = fd;
+ yp[nfds].input_mask = input_mask;
+ yp[nfds].client_data = c;
nfds++;
}
}
- if (nfds == 0) {
- xfree(pollfds);
- xfree(poll_cs);
- return 0;
- }
- while ((r = poll(pollfds, nfds,
- (timeout == -1 ? -1 : timeout * 1000))) < 0
- && errno == EINTR)
- {
- ;
- }
- if (r < 0)
+ if (nfds == 0)
{
- yaz_log(YLOG_WARN|YLOG_ERRNO, "ZOOM_event_sys_poll");
- xfree(pollfds);
- xfree(poll_cs);
- return r;
+ xfree(yp);
+ return 0;
}
- for (i = 0; i<nfds; i++)
+ r = yaz_poll(yp, nfds, timeout, 0);
+ if (r >= 0)
{
- ZOOM_connection c = poll_cs[i];
- if (r)
+ for (i = 0; i < nfds; i++)
{
- int mask = 0;
- if (pollfds[i].revents & POLLIN)
- mask += ZOOM_SELECT_READ;
- if (pollfds[i].revents & POLLOUT)
- mask += ZOOM_SELECT_WRITE;
- if (pollfds[i].revents & POLLERR)
- mask += ZOOM_SELECT_EXCEPT;
- ZOOM_connection_fire_event_socket(c, mask);
+ ZOOM_connection c = (ZOOM_connection) yp[i].client_data;
+ enum yaz_poll_mask output_mask = yp[i].output_mask;
+ if (output_mask & yaz_poll_timeout)
+ ZOOM_connection_fire_event_timeout(c);
+ else
+ {
+ int mask = 0;
+ if (output_mask & yaz_poll_read)
+ mask += ZOOM_SELECT_READ;
+ if (output_mask & yaz_poll_write)
+ mask += ZOOM_SELECT_WRITE;
+ if (output_mask & yaz_poll_except)
+ mask += ZOOM_SELECT_EXCEPT;
+ ZOOM_connection_fire_event_socket(c, mask);
+ }
}
- else
- ZOOM_connection_fire_event_timeout(c);
}
- xfree(pollfds);
- xfree(poll_cs);
+ xfree(yp);
return r;
}
-#endif
ZOOM_API(int)
ZOOM_event(int no, ZOOM_connection *cs)
r = ZOOM_event_nonblock(no, cs);
if (r)
return r;
-#if HAVE_SYS_POLL_H
- ZOOM_event_sys_poll(no, cs);
-#else
- ZOOM_event_sys_select(no, cs);
-#endif
+ while (ZOOM_event_sys_yaz_poll(no, cs) < 0 && errno == EINTR)
+ ;
return ZOOM_event_nonblock(no, cs);
}
/*
* Local variables:
* c-basic-offset: 4
+ * c-file-style: "Stroustrup"
* indent-tabs-mode: nil
* End:
* vim: shiftwidth=4 tabstop=8 expandtab
projects / yaz-moved-to-github.git / blobdiff