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-rw-r--r--winsup/cygwin/fhandler.cc9
1 files changed, 5 insertions, 4 deletions
diff --git a/winsup/cygwin/fhandler.cc b/winsup/cygwin/fhandler.cc
index cb2877dd8..d1f21ec23 100644
--- a/winsup/cygwin/fhandler.cc
+++ b/winsup/cygwin/fhandler.cc
@@ -1697,7 +1697,7 @@ fhandler_base::wait_overlapped (bool inres, bool writing, DWORD *bytes)
return inres;
int res = 0;
- *bytes = (DWORD) -1;
+
DWORD err;
if (inres || ((err = GetLastError ()) == ERROR_IO_PENDING))
{
@@ -1722,6 +1722,7 @@ fhandler_base::wait_overlapped (bool inres, bool writing, DWORD *bytes)
{
debug_printf ("got a signal");
set_errno (EINTR);
+ *bytes = (DWORD) -1;
res = 0;
err = 0;
}
@@ -1732,7 +1733,7 @@ fhandler_base::wait_overlapped (bool inres, bool writing, DWORD *bytes)
}
else
{
- debug_printf ("normal read");
+ debug_printf ("normal %s, %u bytes", writing ? "write" : "read", *bytes);
res = 1;
err = 0;
}
@@ -1744,6 +1745,7 @@ fhandler_base::wait_overlapped (bool inres, bool writing, DWORD *bytes)
{
debug_printf ("err %u", err);
__seterrno_from_win_error (err);
+ *bytes = (DWORD) -1;
res = -1;
}
else
@@ -1787,10 +1789,9 @@ fhandler_base::write_overlapped (const void *ptr, size_t len)
bool res = WriteFile (get_output_handle (), ptr, len, &bytes_written,
get_overlapped ());
int wres = wait_overlapped (res, true, &bytes_written);
- if (wres < 0)
- return -1;
if (wres || !_my_tls.call_signal_handler ())
break;
}
+ debug_printf ("returning %u", bytes_written);
return bytes_written;
}