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| 1 // Copyright 2015 The Crashpad Authors. All rights reserved. |
| 2 // |
| 3 // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 // you may not use this file except in compliance with the License. |
| 5 // You may obtain a copy of the License at |
| 6 // |
| 7 // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 // |
| 9 // Unless required by applicable law or agreed to in writing, software |
| 10 // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 // See the License for the specific language governing permissions and |
| 13 // limitations under the License. |
| 14 |
| 15 #include "util/win/handle.h" |
| 16 |
| 17 #include <stdint.h> |
| 18 |
| 19 #include "base/numerics/safe_conversions.h" |
| 20 |
| 21 namespace crashpad { |
| 22 |
| 23 // These functions use “int” for the 32-bit integer handle type because |
| 24 // sign-extension needs to work correctly. INVALID_HANDLE_VALUE is defined as |
| 25 // ((HANDLE)(LONG_PTR)-1), and this needs to round-trip through an integer and |
| 26 // back to the same HANDLE value. |
| 27 |
| 28 int HandleToInt(HANDLE handle) { |
| 29 return base::checked_cast<int>(reinterpret_cast<intptr_t>(handle)); |
| 30 } |
| 31 |
| 32 HANDLE IntToHandle(int handle_int) { |
| 33 return reinterpret_cast<HANDLE>(static_cast<intptr_t>(handle_int)); |
| 34 } |
| 35 |
| 36 } // namespace crashpad |
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