engine_io library

dart:io / dart:ffi helpers for engine packages.

Import only from files that never compile to web (native-only leaves, or files behind if (dart.library.ffi)). The web-safe engine SPI is engine.dart.

Functions

firstExistingPath(List<String> candidates) → String?

First candidate that exists, as an absolute path, or null.

hostNativeCacheBase() → String?

Root the Native Assets hooks cache downloaded bundles under.

hostNativeDirName() → String?

Host platform subdirectory used by both the hooks' cache layout and the in-repo prebuilt/ trees.

hostNativeLibraryCandidates({required String libFileName, String? envOverride, String? cacheNamespace, List<String> relativePaths = const [], int walkUpLevels = 8}) → List<String>

Every path to try for a host-side native library, in order.

hostNativeLibraryFileName(String baseName) → String

Platform-correct file name for a library called baseName.