/// <summary>
/// Try to load a native library by providing the full path including the file name of the library.
/// </summary>
/// <returns>True if the library was successfully loaded or if it has already been loaded.</returns>
static bool TryLoadFile(string directory, string relativePath, string fileName)
{
lock (StaticLock)
{
if (NativeHandles.Value.TryGetValue(fileName, out IntPtr libraryHandle))
{
return(true);
}
var fullPath = Path.GetFullPath(Path.Combine(Path.Combine(directory, relativePath), fileName));
if (!File.Exists(fullPath))
{
// If the library isn't found within an architecture specific folder then return false
// to allow normal P/Invoke searching behavior when the library is called
return(false);
}
// If successful this will return a handle to the library
libraryHandle = IsUnix ? UnixLoader.LoadLibrary(fullPath) : WindowsLoader.LoadLibrary(fullPath);
if (libraryHandle == IntPtr.Zero)
{
int lastError = Marshal.GetLastWin32Error();
var exception = new System.ComponentModel.Win32Exception(lastError);
LastException = exception;
}
else
{
LastException = null;
NativeHandles.Value[fileName] = libraryHandle;
}
return(libraryHandle != IntPtr.Zero);
}
}
/// <summary>
/// Try to load a native library by providing the full path including the file name of the library.
/// </summary>
/// <returns>True if the library was successfully loaded or if it has already been loaded.</returns>
public static bool TryLoadFile(FileInfo file)
{
lock (StaticLock)
{
IntPtr libraryHandle;
if (NativeHandles.Value.TryGetValue(file.Name, out libraryHandle))
{
return(true);
}
if (!file.Exists)
{
// If the library isn't found within an architecture specific folder then return false
// to allow normal P/Invoke searching behavior when the library is called
return(false);
}
// If successful this will return a handle to the library
libraryHandle = IsUnix ? UnixLoader.LoadLibrary(file.FullName) : WindowsLoader.LoadLibrary(file.FullName);
if (libraryHandle == IntPtr.Zero)
{
int lastError = Marshal.GetLastWin32Error();
var exception = new System.ComponentModel.Win32Exception(lastError);
LastException = exception;
}
else
{
LastException = null;
NativeHandles.Value[file.Name] = libraryHandle;
}
return(libraryHandle != IntPtr.Zero);
}
}
