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base/process/process_fuchsia.cc

Index: base/process/process_fuchsia.cc
diff --git a/base/process/process_fuchsia.cc b/base/process/process_fuchsia.cc
new file mode 100644
index 0000000000000000000000000000000000000000..7c2a1a1112509725b70a519579cebafd2d9fb15a
--- /dev/null
+++ b/base/process/process_fuchsia.cc
@@ -0,0 +1,151 @@
+// Copyright 2011 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.h"
+
+#include <magenta/syscalls.h>
+
+#include "base/debug/activity_tracker.h"
+
+namespace base {
+
+Process::Process(ProcessHandle handle) : process_(handle) {
+}
+
+Process::~Process() {
+}
+
+Process::Process(Process&& other) : process_(other.process_) {
+  other.Close();
+}
+
+Process& Process::operator=(Process&& other) {
+  process_ = other.process_;
+  other.Close();
+  return *this;
+}
+
+// static
+Process Process::Current() {
+  return Process(GetCurrentProcessHandle());
+}
+
+// static
+Process Process::Open(ProcessId pid) {
+  if (pid == GetCurrentProcId())
+    return Current();
+  NOTIMPLEMENTED();
+  // TODO(scottmg): Port.
+  return Process(MX_HANDLE_INVALID);
+}
+
+// static
+Process Process::OpenWithExtraPrivileges(ProcessId pid) {
+  // No privileges to set.
+  return Open(pid);
+}
+
+// static
+Process Process::DeprecatedGetProcessFromHandle(ProcessHandle handle) {
+  DCHECK_NE(handle, GetCurrentProcessHandle());
+  return Process(handle);
+}
+
+// static
+bool Process::CanBackgroundProcesses() {
+  return false;
+}
+
+// static
+void Process::TerminateCurrentProcessImmediately(int exit_code) {
+  _exit(exit_code);
+}
+
+bool Process::IsValid() const {
+  return process_ != kNullProcessHandle;
+}
+
+ProcessHandle Process::Handle() const {
+  return process_;
+}
+
+Process Process::Duplicate() const {
+  if (is_current())
+    return Current();
+
+  return Process(process_);
+}
+
+ProcessId Process::Pid() const {
+  DCHECK(IsValid());
+  return GetProcId(process_);
+}
+
+bool Process::is_current() const {
+  return process_ == GetCurrentProcessHandle();
+}
+
+void Process::Close() {
+  process_ = kNullProcessHandle;
+  // if the process wasn't terminated (so we waited) or the state
+  // wasn't already collected w/ a wait from process_utils, we're gonna
+  // end up w/ a zombie when it does finally exit.
+}
+
+bool Process::Terminate(int exit_code, bool wait) const {
+  mx_status_t status = mx_task_kill(process_);
+  // TODO(scottmg): Use |wait|.
+  return status >= 0;
+}
+
+bool Process::WaitForExit(int* exit_code) const {
+  return WaitForExitWithTimeout(TimeDelta::Max(), exit_code);
+}
+
+bool Process::WaitForExitWithTimeout(TimeDelta timeout, int* exit_code) const {
+  // Record the event that this thread is blocking upon (for hang diagnosis).
+  base::debug::ScopedProcessWaitActivity process_activity(this);
+
+  mx_time_t mxtimeout =
+      timeout == TimeDelta::Max()
+          ? MX_TIME_INFINITE
+          : timeout.InMicroseconds() * Time::kNanosecondsPerMicrosecond;
+  mx_signals_t signals_observed;
+  mx_status_t status = mx_object_wait_one(process_, MX_TASK_TERMINATED,
+                                          mxtimeout, &signals_observed);
+  *exit_code = -1;
+  if (status != NO_ERROR && status != ERR_TIMED_OUT)
+    return false;
+  if (status == ERR_TIMED_OUT && !signals_observed)
+    return false;
+
+  mx_info_process_t proc_info;
+  status = mx_object_get_info(process_, MX_INFO_PROCESS, &proc_info,
+                              sizeof(proc_info), nullptr, nullptr);
+  if (status != NO_ERROR)
+    return status;
+
+  *exit_code = proc_info.return_code;
+  return true;
+}
+
+bool Process::IsProcessBackgrounded() const {
+  // See SetProcessBackgrounded().
+  DCHECK(IsValid());
+  return false;
+}
+
+bool Process::SetProcessBackgrounded(bool value) {
+  // TODO(scottmg): Port.
+  NOTIMPLEMENTED();
+  return false;
+}
+
+int Process::GetPriority() const {
+  // TODO(scottmg): Port.
+  DCHECK(IsValid());
+  return 0;
+}
+
+}  // namespace base