1 // Copyright (c) 2012 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.
5 #include "base/test/multiprocess_test.h"
9 #include "base/containers/hash_tables.h"
10 #include "base/logging.h"
11 #include "base/posix/eintr_wrapper.h"
12 #include "testing/multiprocess_func_list.h"
16 // A very basic implementation for android. On Android tests can run in an APK
17 // and we don't have an executable to exec*. This implementation does the bare
18 // minimum to execute the method specified by procname (in the child process).
19 // - |debug_on_start| is ignored.
20 ProcessHandle MultiProcessTest::SpawnChildImpl(
21 const std::string& procname,
22 const FileHandleMappingVector& fds_to_remap,
23 bool debug_on_start) {
27 PLOG(ERROR) << "fork";
28 return kNullProcessHandle;
35 std::hash_set<int> fds_to_keep_open;
36 for (FileHandleMappingVector::const_iterator it = fds_to_remap.begin();
37 it != fds_to_remap.end(); ++it) {
38 fds_to_keep_open.insert(it->first);
40 // Keep stdin, stdout and stderr open since this is not meant to spawn a
42 const int kFdForAndroidLogging = 3; // FD used by __android_log_write().
43 for (int fd = kFdForAndroidLogging + 1; fd < getdtablesize(); ++fd) {
44 if (fds_to_keep_open.find(fd) == fds_to_keep_open.end()) {
45 HANDLE_EINTR(close(fd));
48 for (FileHandleMappingVector::const_iterator it = fds_to_remap.begin();
49 it != fds_to_remap.end(); ++it) {
50 int old_fd = it->first;
51 int new_fd = it->second;
52 if (dup2(old_fd, new_fd) < 0) {
53 PLOG(FATAL) << "dup2";
55 HANDLE_EINTR(close(old_fd));
57 _exit(multi_process_function_list::InvokeChildProcessTest(procname));