Helper library for dynamic P/Invoke on Windows and Linux. Developed for my company, Stugo Ltd.
This library allows you to load the correct unmanaged module for the current platform at runtime, and P/Invoke to methods in that library.
Copyright (c) 2012-2015 Stugo Ltd
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.
Create the library wrapper:
public class MyUnmanagedWrapper
{
public Func<IntPtr, string> Foo;
[EntryPoint("nameOfMethodInUnmanagedLib")]
public Func<IntPtr, int, int> Bar;
}
Load the library from the assembly's embedded resources at program initialisation:
string unmanagedLib = "My.Project.Namespace.";
if (UnmanagedModuleLoaderBase.IsLinux)
unmanagedLib += "libunmanaged.so";
else
unmanagedLib += "unmanaged.dll";
UnmanagedModuleCollection.Instance.LoadModuleFromEmbeddedResource<MyUnmanagedWrapper>(
typeof(IndexFile).Assembly, unmanagedLib);
Use the library anywhere it is required:
var unmanaged = UnmanagedModuleCollection.Instance.GetModule<MyUnmanagedWrapper>();
Alternatively, you can access the loader instance directly:
var loader = UnmanagedModuleLoaderBase.GetLoader("path/to/library");
var func = loader.GetDelegate("foo", typeof(Func<IntPtr, string>));
func("hello");