protected virtual void Dispose(bool disposing)
{
if (_handle != IntPtr.Zero && disposing)
{
_btrCall = null;
_btrCallId = null;
#if WINDOWS
if (_dependencyHandles != null)
{
foreach (var dependencyHandle in Enumerable.Reverse(_dependencyHandles))
{
NativeMethods.FreeLibrary(dependencyHandle);
}
}
NativeMethods.FreeLibrary(_handle);
#endif
#if LINUX
if (_dependencyHandles != null)
{
foreach (var dependencyHandle in Enumerable.Reverse(_dependencyHandles))
{
NativeMethods.dlclose(dependencyHandle);
}
}
NativeMethods.dlclose(_handle);
#endif
_dependencyHandles = null;
_handle = IntPtr.Zero;
}
}
NativeLibrary(string dllPath = null, IEnumerable <string> dependencyPaths = null)
{
if (dllPath == null)
{
dllPath = NativeLibrary.DefaultLibraryPath;
}
if (dependencyPaths == null)
{
dependencyPaths = NativeLibrary.DefaultDependencyPaths;
}
#if WINDOWS
if (dependencyPaths != null)
{
_dependencyHandles = new List <IntPtr>();
foreach (var dependencyPath in dependencyPaths)
{
var handle = NativeMethods.LoadLibrary(dependencyPath);
if (handle != IntPtr.Zero)
{
_dependencyHandles.Add(handle);
}
}
}
_handle = NativeMethods.LoadLibrary(dllPath);
if (_handle == IntPtr.Zero)
{
if (_dependencyHandles != null)
{
foreach (var dependencyHandle in Enumerable.Reverse(_dependencyHandles))
{
NativeMethods.FreeLibrary(dependencyHandle);
}
}
throw new ArgumentException();
}
var btrCallFunctionPointer = NativeMethods.GetProcAddress(_handle, "BTRCALL");
var btrCallIdFunctionPointer = NativeMethods.GetProcAddress(_handle, "BTRCALLID");
try {
_btrCall = (BtrCallDelegate)Marshal.GetDelegateForFunctionPointer(btrCallFunctionPointer, typeof(BtrCallDelegate));
_btrCallId = (BtrCallIdDelegate)Marshal.GetDelegateForFunctionPointer(btrCallIdFunctionPointer, typeof(BtrCallIdDelegate));
} catch {
foreach (var dependencyHandle in _dependencyHandles)
{
NativeMethods.FreeLibrary(dependencyHandle);
}
NativeMethods.FreeLibrary(_handle);
throw new ArgumentException();
}
#endif
#if LINUX
if (dependencyPaths != null)
{
_dependencyHandles = new List <IntPtr>();
foreach (var dependencyPath in dependencyPaths)
{
var handle = NativeMethods.dlopen(dependencyPath, RTLD_NOW | RTLD_GLOBAL);
if (handle != IntPtr.Zero)
{
_dependencyHandles.Add(handle);
}
}
}
_handle = NativeMethods.dlopen(dllPath, RTLD_NOW | RTLD_GLOBAL);
if (_handle == IntPtr.Zero)
{
if (_dependencyHandles != null)
{
foreach (var dependencyHandle in Enumerable.Reverse(_dependencyHandles))
{
NativeMethods.dlclose(dependencyHandle);
}
}
throw new ArgumentException();
}
var btrCallFunctionPointer = NativeMethods.dlsym(_handle, "BTRCALL");
var btrCallIdFunctionPointer = NativeMethods.dlsym(_handle, "BTRCALLID");
try {
_btrCall = (BtrCallDelegate)Marshal.GetDelegateForFunctionPointer(btrCallFunctionPointer, typeof(BtrCallDelegate));
_btrCallId = (BtrCallIdDelegate)Marshal.GetDelegateForFunctionPointer(btrCallIdFunctionPointer, typeof(BtrCallIdDelegate));
} catch {
foreach (var dependencyHandle in _dependencyHandles)
{
NativeMethods.dlclose(dependencyHandle);
}
NativeMethods.dlclose(_handle);
throw new ArgumentException();
}
#endif
}