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