A possible fix for bug #14333 with hanging at exit on MS-Windows.

 src/w32.c (term_winsock): Call release_listen_threads before calling
 WSACleanup.
 (_sys_wait_accept): Wait for accept event in a loop with a finite
 timeout, instead of waiting indefinitely.  Will hopefully avoid
 hanging during exit because WSACleanup deadlocks waiting for the
 event object to be released.
 src/w32proc.c (release_listen_threads): New function, signals all
 the reader threads that listen for connections to stop waiting.
 src/w32.h (release_listen_threads): Add prototype.

1 files changed, 12 insertions, 0 deletions

diff --git a/src/w32proc.c b/src/w32proc.c
index 54316a6f80f..dabaa62f71c 100644
--- a/src/w32proc.c
+++ b/src/w32proc.c
@@ -990,6 +990,18 @@ find_child_pid (DWORD pid)
   return NULL;
 }
 
+void
+release_listen_threads (void)
+{
+  int i;
+
+  for (i = child_proc_count - 1; i >= 0; i--)
+    {
+      if (CHILD_ACTIVE (&child_procs[i])
+	  && (fd_info[child_procs[i].fd].flags & FILE_LISTEN))
+	child_procs[i].status = STATUS_READ_ERROR;
+    }
+}
 
 /* Thread proc for child process and socket reader threads. Each thread
    is normally blocked until woken by select() to check for input by