public override void Load()
{
var libraryName = GetLibraryName();
var runtimeIdentifier = GetRuntimeIdentifier();
var rootDirectory = GetCurrentDir();
// Search a few different locations for our native assembly
var paths = new[]
{
// This is where native libraries in our nupkg should end up
GetRuntimeLibraryPath(rootDirectory, runtimeIdentifier, libraryName),
// The build output folder
GetCurrentDirectoryLibraryPath(rootDirectory, libraryName),
Path.Combine("/usr/local/lib", libraryName),
Path.Combine("/usr/lib", libraryName),
};
foreach (var path in paths)
{
if (string.IsNullOrEmpty(path))
{
continue;
}
if (File.Exists(path))
{
NativeMethodsSystemPosix.dlerror();
var libPtr = NativeMethodsSystemPosix.dlopen(path, NativeMethodsSystemPosix.RTLD_NOW);
if (libPtr == IntPtr.Zero)
{
var errorPtr = NativeMethodsSystemPosix.dlerror();
if (errorPtr != IntPtr.Zero)
{
var error = Marshal.PtrToStringAnsi(errorPtr);
throw new DllNotLoadedException($"dlopen failed: {path} : {error}");
}
}
_libraryHandle = libPtr;
return;
}
}
throw new DllNotLoadedException();
}
public override void Release()
{
if (_libraryHandle == IntPtr.Zero)
{
return;
}
var retVal = NativeMethodsSystemPosix.dlclose(_libraryHandle);
if (retVal != 0)
{
var errorPtr = NativeMethodsSystemPosix.dlerror();
if (errorPtr != IntPtr.Zero)
{
var error = Marshal.PtrToStringAnsi(errorPtr);
throw new DllUnloadFailedException($"dlclose failed: {error}");
}
}
}
