| // Copyright (c) 2015 Ryan Prichard | |
| // | |
| // Permission is hereby granted, free of charge, to any person obtaining a copy | |
| // of this software and associated documentation files (the "Software"), to | |
| // deal in the Software without restriction, including without limitation the | |
| // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or | |
| // sell copies of the Software, and to permit persons to whom the Software is | |
| // furnished to do so, subject to the following conditions: | |
| // | |
| // The above copyright notice and this permission notice shall be included in | |
| // all copies or substantial portions of the Software. | |
| // | |
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
| // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | |
| // IN THE SOFTWARE. | |
| class OsModule { | |
| HMODULE m_module; | |
| public: | |
| enum class LoadErrorBehavior { Abort, Throw }; | |
| OsModule(const wchar_t *fileName, | |
| LoadErrorBehavior behavior=LoadErrorBehavior::Abort) { | |
| m_module = LoadLibraryW(fileName); | |
| if (behavior == LoadErrorBehavior::Abort) { | |
| ASSERT(m_module != NULL); | |
| } else { | |
| if (m_module == nullptr) { | |
| const auto err = GetLastError(); | |
| throwWindowsError( | |
| (L"LoadLibraryW error: " + std::wstring(fileName)).c_str(), | |
| err); | |
| } | |
| } | |
| } | |
| ~OsModule() { | |
| FreeLibrary(m_module); | |
| } | |
| HMODULE handle() const { return m_module; } | |
| FARPROC proc(const char *funcName) { | |
| FARPROC ret = GetProcAddress(m_module, funcName); | |
| if (ret == NULL) { | |
| trace("GetProcAddress: %s is missing", funcName); | |
| } | |
| return ret; | |
| } | |
| }; | |