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| 1 // Copyright 2013 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 "chrome_frame/pin_module.h" | |
| 6 | |
| 7 #include <windows.h> | |
| 8 | |
| 9 #include "base/logging.h" | |
| 10 #include "chrome_frame/utils.h" | |
| 11 | |
| 12 extern "C" IMAGE_DOS_HEADER __ImageBase; | |
| 13 | |
| 14 namespace chrome_frame { | |
| 15 | |
| 16 namespace { | |
| 17 | |
| 18 PinModuleCallbackFn g_pin_module_callback = NULL; | |
| 19 | |
| 20 } // namespace | |
| 21 | |
| 22 void SetPinModuleCallback(PinModuleCallbackFn callback) { | |
| 23 g_pin_module_callback = callback; | |
| 24 } | |
| 25 | |
| 26 void PinModule() { | |
| 27 static bool s_pinned = false; | |
| 28 if (!s_pinned && !IsUnpinnedMode()) { | |
| 29 wchar_t system_buffer[MAX_PATH]; | |
| 30 HMODULE this_module = reinterpret_cast<HMODULE>(&__ImageBase); | |
| 31 system_buffer[0] = 0; | |
| 32 if (GetModuleFileName(this_module, system_buffer, | |
| 33 arraysize(system_buffer)) != 0) { | |
| 34 HMODULE unused; | |
| 35 if (!GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_PIN, system_buffer, | |
| 36 &unused)) { | |
| 37 DPLOG(FATAL) << "Failed to pin module " << system_buffer; | |
| 38 } else { | |
| 39 s_pinned = true; | |
| 40 if (g_pin_module_callback) | |
| 41 g_pin_module_callback(); | |
| 42 } | |
| 43 } else { | |
| 44 DPLOG(FATAL) << "Could not get module path."; | |
| 45 } | |
| 46 } | |
| 47 } | |
| 48 | |
| 49 } // namespace chrome_frame | |
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