tmore debugging - plan9port - [fork] Plan 9 from user space

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---

commit af89fc108d61625959704a08ffdd44adfd86a9d4

parent 9b4de09d413c43059afcd75ceba4d2adcdc0a0a8

Author: rsc 

Date:   Thu,  6 Jan 2005 23:07:19 +0000

more debugging

Diffstat:
  M src/libthread/ioproc.c              |       2 +-
  M src/libthread/iorw.c                |       3 ++-
  M src/libthread/thread.c              |      20 ++++++++++++++++----

3 files changed, 19 insertions(+), 6 deletions(-)
---

diff --git a/src/libthread/ioproc.c b/src/libthread/ioproc.c

t@@ -13,7 +13,7 @@ iointerrupt(Ioproc *io)
 {
         if(!io->inuse)
                 return;
-        fprint(2, "bug: cannot iointerrupt yet\n");
+        fprint(2, "bug: cannot iointerrupt %p yet\n", io);
 }
 
 static void

diff --git a/src/libthread/iorw.c b/src/libthread/iorw.c

t@@ -123,7 +123,8 @@ _iowrite(va_list *arg)
 long
 iowrite(Ioproc *io, int fd, void *a, long n)
 {
-        return iocall(io, _iowrite, fd, a, n);
+        n = iocall(io, _iowrite, fd, a, n);
+        return n;
 }
 
 static long

diff --git a/src/libthread/thread.c b/src/libthread/thread.c

t@@ -23,17 +23,29 @@ _threaddebug(char *fmt, ...)
         va_list arg;
         char buf[128];
         _Thread *t;
-
-        return;
+        char *p;
+        static int fd = -1;
+
+return;
+        if(fd < 0){
+                p = strrchr(argv0, '/');
+                if(p)
+                        p++;
+                else
+                        p = argv0;
+                snprint(buf, sizeof buf, "/tmp/%s.tlog", p);
+                if((fd = create(buf, OWRITE, 0666)) < 0)
+                        fd = open("/dev/null", OWRITE);
+        }
 
         va_start(arg, fmt);
         vsnprint(buf, sizeof buf, fmt, arg);
         va_end(arg);
         t = proc()->thread;
         if(t)
-                fprint(2, "%d.%d: %s\n", getpid(), t->id, buf);
+                fprint(fd, "%d.%d: %s\n", getpid(), t->id, buf);
         else
-                fprint(2, "%d._: %s\n", getpid(), buf);
+                fprint(fd, "%d._: %s\n", getpid(), buf);
 }
 
 static _Thread*