base/fuchsia/default_job.cc

   1 // Copyright 2017 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/fuchsia/default_job.h"
   6
   7 #include <zircon/types.h>
   8
   9 #include "base/logging.h"
  10
  11 namespace base {
  12
  13 namespace {
  14 zx_handle_t g_job = ZX_HANDLE_INVALID;
  15 }
  16
  17 zx::unowned_job GetDefaultJob() {
  18   if (g_job == ZX_HANDLE_INVALID)
  19     return zx::job::default_job();
  20   return zx::unowned_job(g_job);
  21 }
  22
  23 void SetDefaultJob(zx::job job) {
  24   DCHECK_EQ(g_job, ZX_HANDLE_INVALID);
  25   g_job = job.release();
  26 }
  27
  28 ScopedDefaultJobForTest::ScopedDefaultJobForTest(zx::job new_default_job) {
  29   DCHECK(new_default_job.is_valid());
  30   old_default_job_.reset(g_job);
  31   g_job = new_default_job.release();
  32 }
  33
  34 ScopedDefaultJobForTest::~ScopedDefaultJobForTest() {
  35   DCHECK_NE(g_job, ZX_HANDLE_INVALID);
  36   zx::job my_default_job(g_job);
  37   g_job = old_default_job_.release();
  38 }
  39
  40 }  // namespace base