/*
* Copyright 2019 by its authors. See AUTHORS.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Runtime.InteropServices;
namespace Efl.Eo
{
internal partial class NativeModule
{
private const int RTLD_NOW = 0x002;
// Currently we are using GLOBAL due to issues
// with the way evas modules are built.
private const int RTLD_GLOBAL = 0x100;
[DllImport(efl.Libs.Libdl)]
private static extern IntPtr dlopen(string fileName, int flag);
[DllImport(efl.Libs.Libdl)]
private static extern int dlclose(IntPtr handle);
///Closes the library handle.
///The handle to the library.
internal static void UnloadLibrary(IntPtr handle)
{
dlclose(handle);
}
///Loads the given library.
///
///It attempts to load using the following list of names based on the filename
///parameter:
///
///
///-
///filename
///
///-
///libfilename
///
///-
///filename.so
///
///-
///libfilename.so
///
///-
///filename.dylib
///
///-
///libfilename.dylib
///
///
///
///The name to search for.
///The loaded library handle or on failure.
internal static IntPtr LoadLibrary(string filename)
{
Eina.Log.Debug($"Loading library {filename}");
var r = dlopen(filename, RTLD_NOW | RTLD_GLOBAL);
if (r == IntPtr.Zero)
{
r = dlopen("lib" + filename, RTLD_NOW | RTLD_GLOBAL);
if (r == IntPtr.Zero)
{
r = dlopen(filename + ".so", RTLD_NOW | RTLD_GLOBAL);
if (r == IntPtr.Zero)
{
r = dlopen("lib" + filename + ".so", RTLD_NOW | RTLD_GLOBAL);
if (r == IntPtr.Zero)
{
r = dlopen(filename + ".dylib", RTLD_NOW | RTLD_GLOBAL);
if (r == IntPtr.Zero)
{
r = dlopen("lib" + filename + ".dylib", RTLD_NOW | RTLD_GLOBAL);
}
}
}
}
}
return r;
}
}
}