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https://gitea.wildfiregames.com/0ad/0ad
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af3f7acfe7
The implicit conversion form sting literal to char* for C compatibility was removed with C++11, seems MSVC caught up with this in C++20. Use explicit cast instead where needed and change API to const char* otherwise. Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
80 lines
2.3 KiB
C++
80 lines
2.3 KiB
C++
/* Copyright (C) 2025 Wildfire Games.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "precompiled.h"
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#include "lib/sysdep/os/win/wposix/wdlfcn.h"
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#include "lib/sysdep/os/win/wposix/wposix_internal.h"
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static HMODULE HMODULE_from_void(void* handle)
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{
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return (HMODULE)handle;
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}
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static void* void_from_HMODULE(HMODULE hModule)
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{
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return (void*)hModule;
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}
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int dlclose(void* handle)
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{
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WARN_IF_FALSE(FreeLibrary(HMODULE_from_void(handle)));
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return 0;
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}
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char* dlerror()
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{
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// the obvious implementation involves sys_StatusDescription, but we
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// don't want to return a pointer to a static array because that's not
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// thread-safe. we therefore check GetLastError directly.
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switch(GetLastError())
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{
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case ERROR_MOD_NOT_FOUND:
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return const_cast<char*>("module not found");
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case ERROR_PROC_NOT_FOUND:
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return const_cast<char*>("symbol not found");
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default:
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return const_cast<char*>("unknown");
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}
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}
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void* dlopen(const char* so_name, int flags)
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{
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ENSURE(!(flags & RTLD_GLOBAL));
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OsPath pathname = Path(so_name).ChangeExtension(L".dll");
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HMODULE hModule = LoadLibraryW(OsString(pathname).c_str());
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return void_from_HMODULE(hModule);
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}
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void* dlsym(void* handle, const char* sym_name)
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{
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HMODULE hModule = HMODULE_from_void(handle);
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void* sym = GetProcAddress(hModule, sym_name);
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ENSURE(sym);
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return sym;
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}
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