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// Copyright (c) 2013 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/process/process_handle.h"
#include <sys/sysctl.h>
#include <sys/types.h>
#include "base/logging.h"
namespace base {
ProcessId GetParentProcessId(ProcessHandle process) {
struct kinfo_proc info;
size_t length = sizeof(struct kinfo_proc);
int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process };
if (sysctl(mib, 4, &info, &length, NULL, 0) < 0) {
DPLOG(ERROR) << "sysctl";
return -1;
}
if (length == 0)
return -1;
return info.kp_eproc.e_ppid;
}
} // namespace base
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