From 68fa39cbe590876a74b4c17249e0e875ff95d600 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Grubbstr=C3=B6m=20=28Grubba=29?=
<grubba@grubba.org>
Date: Wed, 29 Apr 1998 21:51:34 +0200
Subject: [PATCH] Added some DEBUG for poll().
Rev: src/backend.c:1.29
---
src/backend.c | 44 ++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 42 insertions(+), 2 deletions(-)
diff --git a/src/backend.c b/src/backend.c
index f49ec9c1a1..53ea843cd9 100644
--- a/src/backend.c
+++ b/src/backend.c
@@ -4,7 +4,7 @@
||| See the files COPYING and DISCLAIMER for more information.
\*/
#include "global.h"
-RCSID("$Id: backend.c,v 1.28 1998/04/29 00:32:40 grubba Exp $");
+RCSID("$Id: backend.c,v 1.29 1998/04/29 19:51:34 grubba Exp $");
#include "fdlib.h"
#include "backend.h"
#include <errno.h>
@@ -615,6 +615,9 @@ void backend(void)
if(i>=0)
{
+#ifdef DEBUG
+ int num_active = i;
+#endif /* DEBUG */
#ifndef HAVE_POLL
/* FIXME: OOB? */
for(i=0; i<max_fd+1; i++)
@@ -629,18 +632,27 @@ void backend(void)
for(i=0; i<active_num_in_poll; i++)
{
int fd = active_poll_fds[i].fd;
+#ifdef DEBUG
+ int handled = 0;
+#endif /* DEBUG */
if(active_poll_fds[i].revents & POLLNVAL)
{
int j;
for(j=0;j<num_in_poll;j++)
if(poll_fds[j].fd == fd) /* It's still there... */
- fatal("Bad filedescriptor %d to select().\n", fd);
+ fatal("Bad filedescriptor %d to poll().\n", fd);
+#ifdef DEBUG
+ handled = 1;
+#endif /* DEBUG */
}
#ifdef WITH_OOB
if ((active_poll_fds[i].revents & POLLRDBAND) &&
read_oob_callback[fd]) {
(*(read_oob_callback[fd]))(fd, read_oob_callback_data[fd]);
+#ifdef DEBUG
+ handled = 1;
+#endif /* DEBUG */
}
#endif /* WITH_OOB */
@@ -650,19 +662,47 @@ void backend(void)
if((active_poll_fds[i].revents & POLLRDNORM)&& read_callback[fd]) {
(*(read_callback[fd]))(fd,read_callback_data[fd]);
+#ifdef DEBUG
+ handled = 1;
+#endif /* DEBUG */
}
#ifdef WITH_OOB
if ((active_poll_fds[i].revents & POLLWRBAND) &&
write_oob_callback[fd]) {
(*(write_oob_callback[fd]))(fd, write_oob_callback_data[fd]);
+#ifdef DEBUG
+ handled = 1;
+#endif /* DEBUG */
}
#endif /* WITH_OOB */
if((active_poll_fds[i].revents & POLLOUT)&& write_callback[fd]) {
(*(write_callback[fd]))(fd,write_callback_data[fd]);
+#ifdef DEBUG
+ handled = 1;
+#endif /* DEBUG */
+ }
+#ifdef DEBUG
+ num_active -= handled;
+ if (!handled && active_poll_fds[i].revents) {
+ fprintf(stderr, "BACKEND: fd %d has revents 0x%08x, "
+ "but hasn't been handled.\n", active_poll_fds[i].fd,
+ active_poll_fds[i].revents);
+ }
+#endif /* DEBUG */
+ }
+#ifdef DEBUG
+ if (num_active) {
+ fprintf(stderr, "BACKEND: %d more active fds than were handled.\n",
+ num_active);
+ for(i=0; i<active_num_in_poll; i++) {
+ fprintf(stderr, "BACKEND: fd %d, events 0x%08x, revents 0x%08x\n",
+ active_poll_fds[i].fd, active_poll_fds[i].events,
+ active_poll_fds[i].revents);
}
}
+#endif /* DEBUG */
#endif
}else{
switch(errno)
--
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