From: Ian Jackson <ian@chiark.greenend.org.uk>
Date: Sat, 15 May 2010 00:48:36 +0000 (+0100)
Subject: debugging for thing that crashed
X-Git-Tag: innduct-0.1~23
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=innduct.git;a=commitdiff_plain;h=ac902a8299ff4469b356836f431ead31c3377377

debugging for thing that crashed
---

diff --git a/backends/innduct.c b/backends/innduct.c
index 3c746c3..445157d 100644
--- a/backends/innduct.c
+++ b/backends/innduct.c
@@ -2206,10 +2206,12 @@ static void *tailing_rable_call_time(oop_source *loop, struct timeval tv,
    * on_cancel which will cancel this callback */
   InputFile *ipf= user;
 
+  dbg("**TRACT** ipf=%p called",ipf);
   if (!ipf->fake_readable) return OOP_CONTINUE;
 
   /* we just keep calling readable until our caller (oop_rd)
    * has called try_read, and try_read has found EOF so given EAGAIN */
+  dbg("**TRACT** ipf=%p reschedule",ipf);
   loop->on_time(loop, OOP_TIME_NOW, tailing_rable_call_time, ipf);
 
   return ipf->readable_callback(loop, &ipf->readable,
@@ -2218,13 +2220,17 @@ static void *tailing_rable_call_time(oop_source *loop, struct timeval tv,
 
 static void tailing_on_cancel(struct oop_readable *rable) {
   InputFile *ipf= (void*)rable;
+  dbg("**TOR** ipf=%p on_cancel",ipf);
 
   if (ipf->filemon) filemon_stop(ipf);
+  dbg("**TRACT** ipf=%p cancel",ipf);
   loop->cancel_time(loop, OOP_TIME_NOW, tailing_rable_call_time, ipf);
   ipf->readable_callback= 0;
 }
 
 static void tailing_make_readable(InputFile *ipf) {
+  dbg("**TRACT** ipf=%p makereadable rcb=%p",ipf,
+      (void*)ipf?ipf->readable_callback:0);
   if (!ipf || !ipf->readable_callback) /* so callers can be naive */
     return;
   ipf->fake_readable= 1;
@@ -2234,6 +2240,7 @@ static void tailing_make_readable(InputFile *ipf) {
 static int tailing_on_readable(struct oop_readable *rable,
 				oop_readable_call *cb, void *user) {
   InputFile *ipf= (void*)rable;
+  dbg("**TOR** ipf=%p on_readable",ipf);
 
   tailing_on_cancel(rable);
   ipf->readable_callback= cb;
@@ -2267,6 +2274,7 @@ static ssize_t tailing_try_read(struct oop_readable *rable, void *buffer,
 	abort();
       }
     }
+    dbg("**TOR** ipf=%p try_read r=%d",ipf,r);
     return r;
   }
 }