Windows install_static refactor.

chrome/install_static/install_details.cc

+// Copyright 2016 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 "chrome/install_static/install_details.h"
+
+#include <assert.h>
+
+#include <type_traits>
+
+#include "chrome/install_static/install_modes.h"
+#include "chrome/install_static/install_util.h"
+#include "chrome_elf/nt_registry/nt_registry.h"
+
+namespace install_static {
+
+namespace {
+
+// This module's instance.

[robertshield, 2016/10/17 05:27:23]

Comment here that this is intentionally leaked at shutdown.

[grt (UTC plus 2), 2016/10/24 11:17:51]

Done.

+InstallDetails* g_module_details = nullptr;
+
+}  // namespace
+
+std::wstring InstallDetails::GetClientStateKeyPath(bool binaries) const {
+  return binaries && multi_install()
+             ? GetBinariesClientStateKeyPath()
+             : install_static::GetClientStateKeyPath(app_guid());
+}
+
+std::wstring InstallDetails::GetClientStateMediumKeyPath(bool binaries) const {
+  return binaries && multi_install()
+             ? GetBinariesClientStateMediumKeyPath()
+             : install_static::GetClientStateMediumKeyPath(app_guid());
+}
+
+// static
+const InstallDetails& InstallDetails::Get() {
+  assert(g_module_details);
+  return *g_module_details;
+}
+
+// static
+void InstallDetails::SetForProcess(
+    std::unique_ptr<PrimaryInstallDetails> details) {
+  assert(!details || !g_module_details);
+  // Intentionally leaked at shutdown.
+  g_module_details = details.release();
+}
+
+// static
+intptr_t InstallDetails::GetPayload() {
+  assert(g_module_details);
+  static_assert(std::is_pod<Payload>::value, "Payload must be a POD-struct");
+  static_assert(std::is_pod<InstallConstants>::value,
+                "InstallConstants must be a POD-struct");
+  return reinterpret_cast<intptr_t>(g_module_details->payload_);
+}
+
+// static
+void InstallDetails::ImportFromModule(const wchar_t* module_name,
+                                      const char* export_name) {
+  assert(!g_module_details);
+  using GetInstallDetailsPayloadFunction = intptr_t(__cdecl*)();
+  GetInstallDetailsPayloadFunction payload_getter =
+      reinterpret_cast<GetInstallDetailsPayloadFunction>(
+          ::GetProcAddress(::GetModuleHandle(module_name), export_name));
+  assert(payload_getter);
+  // Intentionally leaked at shutdown.
+  g_module_details =
+      new InstallDetails(reinterpret_cast<Payload*>(payload_getter()));
+}
+
+}  // namespace install_static