Wait on a pipe for the test server to start up

net/test/test_server.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_TEST_TEST_SERVER_H_
 #define NET_TEST_TEST_SERVER_H_
 #pragma once
 
 #include "build/build_config.h"
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/file_path.h"
+#include "base/file_util.h"
 #include "base/process_util.h"
 #include "net/base/host_port_pair.h"
 
 #if defined(OS_WIN)
 #include "base/scoped_handle_win.h"
 #endif
 
 #if defined(USE_NSS)
 #include "base/ref_counted.h"
 #include "net/base/x509_certificate.h"
@@ skipping 77 matching lines @@
 
   // Address the test server listens on.
   HostPortPair host_port_pair_;
 
   // Handle of the Python process running the test server.
   base::ProcessHandle process_handle_;
 
 #if defined(OS_WIN)
   // JobObject used to clean up orphaned child processes.
   ScopedHandle job_handle_;
+
+  // The file handle the child writes to when it starts.
+  ScopedHandle child_fd_;
+#endif
+
+#if defined(OS_POSIX)
+  // The file descriptor the child writes to when it starts.
+  int child_fd_;
+  file_util::ScopedFD child_fd_closer_;
 #endif
 
 #if defined(USE_NSS)
   scoped_refptr<X509Certificate> cert_;
 #endif
 
   Type type_;
 
   DISALLOW_COPY_AND_ASSIGN(TestServer);
 };
 
 }  // namespace net
 
 #endif  // NET_TEST_TEST_SERVER_H_