Add bn::base::DynamicLibrary, an abstraction over runtime loading of shared libraries - #8547
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Add bn::base::DynamicLibrary, an abstraction over runtime loading of shared libraries#8547bdash wants to merge 1 commit into
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…shared libraries `bn::base::DynamicLibrary` opens a shared library at runtime and unloads it when the object is destroyed. The platform handle can be handled off with `Release()` when the library should remain loaded indefinitely. `Open()` returns either the library or the platform's description of why it could not be loaded. `SymbolScope` chooses whether `GetSymbol()` also resolves symbols from the libraries that the loaded library links against. Each platform restricts this differently, so macOS passes `RTLD_FIRST` to `dlopen()`, other Unixes check which image defines each symbol, and Windows only ever searches the module itself.
bdash
added this pull request to stack #8548
September 10, 2026 17:35
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bn::base::DynamicLibraryopens a shared library at runtime and unloads it when the object is destroyed. The platform handle can be handed off withRelease()when the library should remain loaded indefinitely.Open()returns either the library or the platform's description of why it could not be loaded.SymbolScopechooses whetherGetSymbol()also resolves symbols from the libraries that the loaded library links against. Each platform restricts this differently, so macOS passesRTLD_FIRSTtodlopen(), other Unixes check which image defines each symbol, and Windows only ever searches the module itself.