Exemple #1
0
        // Extracts and loads a resource with the base name into the same directory with the base output name
        public static void LoadUnmanagedLibrary(string resourceBaseName, string outFile)
        {
            if (s_loadedLibs.ContainsKey(resourceBaseName))
            {
                return;
            }
            string resName = GetResourceName(resourceBaseName);

            if (!s_resourceList.Contains(resName))
            {
                throw new Exception($"The native library {resourceBaseName} does not exist as an embedded resource.");
            }

            Stopwatch timer = Stopwatch.StartNew();

            string outPath = Path.Combine(s_thisDir, outFile);

            try
            {
                WriteResourceStream(resName, outPath);
            }
            catch (Exception)
            {
                throw;
            }

            IntPtr handle = IntPtr.Zero;

            if (s_platform == PlatformOS.Windows)
            {
                handle = Kernel32.LoadLibrary(outPath);
                if (handle == IntPtr.Zero)
                {
                    int    err    = Marshal.GetLastWin32Error();
                    string errstr = (new Win32Exception(err)).Message;
                    throw new Exception(errstr);
                }
            }
            else
            {
                handle = Dl.Open(outPath, Dl.RTLD_NOW);
                if (handle == IntPtr.Zero)
                {
                    IntPtr err    = Dl.Error();
                    string errstr = Marshal.PtrToStringAuto(err);
                    throw new Exception(errstr);
                }
            }

            if (s_loadedLibs.Count == 0)
            {
                // Unloads the libraries in the event of a crash (or the user forgets)
                AppDomain.CurrentDomain.ProcessExit += (sender, e) => UnloadLibraries();
            }

            s_loadedLibs.Add(resourceBaseName, handle);
            s_libPaths.Add(resourceBaseName, outPath);

            LastLoadTime = timer.Elapsed;
        }
Exemple #2
0
        // Extract the resource into the path and load it
        private static void ExtractAndLoad(string name)
        {
            var rName = GetResourceName(name);
            var rPath = Path.Combine(s_thisDir, $"{name}.nl");

            // Extract
            using (var reader = s_this.GetManifestResourceStream(rName))
            {
                using (var writer = File.Open(rPath, FileMode.Create, FileAccess.Write, FileShare.None))
                {
                    reader.CopyTo(writer);
                }
            }
            s_libPaths.Add(rPath);

            // Load
            var handle = (s_platform == PlatformOS.Windows) ? Kernel32.LoadLibrary(rPath) : Dl.Open(rPath, Dl.RTLD_NOW);

            s_loadedLibs.Add(name, handle);
        }