62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
// Copyright (c) 2012 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.
|
|
|
|
#include "base/test/multiprocess_test.h"
|
|
|
|
#include <unistd.h>
|
|
|
|
#include "base/containers/hash_tables.h"
|
|
#include "base/logging.h"
|
|
#include "base/posix/eintr_wrapper.h"
|
|
#include "testing/multiprocess_func_list.h"
|
|
|
|
namespace base {
|
|
|
|
// A very basic implementation for android. On Android tests can run in an APK
|
|
// and we don't have an executable to exec*. This implementation does the bare
|
|
// minimum to execute the method specified by procname (in the child process).
|
|
// - |debug_on_start| is ignored.
|
|
ProcessHandle MultiProcessTest::SpawnChildImpl(
|
|
const std::string& procname,
|
|
const FileHandleMappingVector& fds_to_remap,
|
|
bool debug_on_start) {
|
|
pid_t pid = fork();
|
|
|
|
if (pid < 0) {
|
|
PLOG(ERROR) << "fork";
|
|
return kNullProcessHandle;
|
|
}
|
|
if (pid > 0) {
|
|
// Parent process.
|
|
return pid;
|
|
}
|
|
// Child process.
|
|
std::hash_set<int> fds_to_keep_open;
|
|
for (FileHandleMappingVector::const_iterator it = fds_to_remap.begin();
|
|
it != fds_to_remap.end(); ++it) {
|
|
fds_to_keep_open.insert(it->first);
|
|
}
|
|
// Keep stdin, stdout and stderr open since this is not meant to spawn a
|
|
// daemon.
|
|
const int kFdForAndroidLogging = 3; // FD used by __android_log_write().
|
|
for (int fd = kFdForAndroidLogging + 1; fd < getdtablesize(); ++fd) {
|
|
if (fds_to_keep_open.find(fd) == fds_to_keep_open.end()) {
|
|
HANDLE_EINTR(close(fd));
|
|
}
|
|
}
|
|
for (FileHandleMappingVector::const_iterator it = fds_to_remap.begin();
|
|
it != fds_to_remap.end(); ++it) {
|
|
int old_fd = it->first;
|
|
int new_fd = it->second;
|
|
if (dup2(old_fd, new_fd) < 0) {
|
|
PLOG(FATAL) << "dup2";
|
|
}
|
|
HANDLE_EINTR(close(old_fd));
|
|
}
|
|
_exit(multi_process_function_list::InvokeChildProcessTest(procname));
|
|
return 0;
|
|
}
|
|
|
|
} // namespace base
|