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      1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "base/test/multiprocess_test.h"
      6 
      7 #include "base/base_switches.h"
      8 #include "base/command_line.h"
      9 
     10 #if defined(OS_POSIX)
     11 #include <sys/types.h>
     12 #include <unistd.h>
     13 #endif
     14 
     15 namespace base {
     16 
     17 MultiProcessTest::MultiProcessTest() {
     18 }
     19 
     20 ProcessHandle MultiProcessTest::SpawnChild(const std::string& procname,
     21                                            bool debug_on_start) {
     22 #if defined(OS_WIN)
     23   return SpawnChildImpl(procname, debug_on_start);
     24 #elif defined(OS_POSIX)
     25   file_handle_mapping_vector empty_file_list;
     26   return SpawnChildImpl(procname, empty_file_list, debug_on_start);
     27 #endif
     28 }
     29 
     30 #if defined(OS_POSIX)
     31 ProcessHandle MultiProcessTest::SpawnChild(
     32     const std::string& procname,
     33     const file_handle_mapping_vector& fds_to_map,
     34     bool debug_on_start) {
     35   return SpawnChildImpl(procname, fds_to_map, debug_on_start);
     36 }
     37 #endif
     38 
     39 CommandLine MultiProcessTest::MakeCmdLine(const std::string& procname,
     40                                           bool debug_on_start) {
     41   CommandLine cl(*CommandLine::ForCurrentProcess());
     42   cl.AppendSwitchASCII(switches::kTestChildProcess, procname);
     43   if (debug_on_start)
     44     cl.AppendSwitch(switches::kDebugOnStart);
     45   return cl;
     46 }
     47 
     48 #if defined(OS_WIN)
     49 
     50 ProcessHandle MultiProcessTest::SpawnChildImpl(const std::string& procname,
     51                                                bool debug_on_start) {
     52   ProcessHandle handle = static_cast<ProcessHandle>(NULL);
     53   LaunchApp(MakeCmdLine(procname, debug_on_start),
     54                   false, true, &handle);
     55   return handle;
     56 }
     57 
     58 #elif defined(OS_POSIX)
     59 
     60 // TODO(port): with the CommandLine refactoring, this code is very similar
     61 // to the Windows code.  Investigate whether this can be made shorter.
     62 ProcessHandle MultiProcessTest::SpawnChildImpl(
     63     const std::string& procname,
     64     const file_handle_mapping_vector& fds_to_map,
     65     bool debug_on_start) {
     66   ProcessHandle handle = kNullProcessHandle;
     67   LaunchApp(MakeCmdLine(procname, debug_on_start).argv(),
     68                   fds_to_map, false, &handle);
     69   return handle;
     70 }
     71 
     72 #endif
     73 
     74 }  // namespace base
     75