//==========================================================================
/// <summary>
/// Frees the provided library.
/// </summary>
/// <param name="library">
/// The library to free.
/// </param>
/// <returns>
/// The number how ofter the library is still referenced; will be <c>0</c>
/// in case the library is no longer referenced and has been disposed.
/// </returns>
public static uint Free(LibVLCLibrary library)
{
if (library == null)
{
throw new ArgumentNullException("library");
}
lock (m_LibraryHandles)
{
LibraryHandle library_handle;
if (m_LibraryHandles.TryGetValue(library.Directory, out library_handle))
{
if (library_handle.Library == library)
{
if (--library_handle.ReferenceCounter == 0)
{
library_handle.Library.Dispose();
m_LibraryHandles.Remove(library.Directory);
}
if (library_handle == m_DefaultLibraryHandle)
{
m_DefaultLibraryHandle = null;
}
return(library_handle.ReferenceCounter);
}
}
}
throw new ArgumentException("The provided library has not been loaded using the Load method!", "library");
}
public PlatformBinding()
{
string libraryName = null;
string arch = (Is64Bit) ? "x64" : "x86";
PlatformOS os = Aws.Crt.Platform.GetRuntimePlatformOS();
switch (os)
{
case PlatformOS.WINDOWS:
libraryName = $"aws-crt-dotnet-{arch}.dll";
break;
case PlatformOS.UNIX:
libraryName = $"libaws-crt-dotnet-{arch}.so";
break;
case PlatformOS.MAC:
libraryName = $"libaws-crt-dotnet-{arch}.dylib";
break;
}
try
{
libraryPath = ExtractLibrary(libraryName);
// Work around virus scanners munching on a newly found DLL
int tries = 0;
do
{
crt = CRT.Loader.LoadLibrary(libraryPath);
if (crt.IsInvalid)
{
Thread.Sleep(10);
}
} while (crt.IsInvalid && tries++ < 100);
if (crt.IsInvalid)
{
string error = CRT.Loader.GetLastError();
throw new InvalidOperationException($"Unable to load {libraryPath}: error={error}");
}
}
catch (Exception ex)
{
throw new InvalidOperationException($"Unable to load {libraryPath}, exception occurred", ex);
}
Init();
}
//Creates new instance of ejdb. Don't know what' is it, but it looks it should be done before opening database
public unsafe DatabaseFunctions(LibraryHandle handle)
{
NewInstance = handle.GetUnmanagedDelegate <NewInstanceDelegate>();
DeleteInstance = handle.GetUnmanagedDelegate <DeleteInstanceDelegate>();
OpenDatabase = handle.GetUnmanagedDelegate <OpenDatabaseDelegate>();
CloseDatabase = handle.GetUnmanagedDelegate <CloseDatabaseDelegate>();
IsOpen = handle.GetUnmanagedDelegate <IsOpenDelegate>();
GetErrorCode = handle.GetUnmanagedDelegate <GetErrorCodeDelegate>();
GetMetadata = handle.GetUnmanagedDelegate <GetMetaDelegate>();
Command = handle.GetUnmanagedDelegate <CommandDelegate>();
Sync = handle.GetUnmanagedDelegate <SyncDelegate>();
}
public HotReload(string path)
{
var randNum = Random.Range(100000, 999999);
_tempFile = path + ".tmp." + randNum + ".dll";
File.Copy(path, _tempFile);
var h = LoadLibrary(_tempFile);
if (h.IsInvalid)
{
throw new Exception($"failed to load DLL");
}
_handle = h;
}
public PlatformBinding()
{
string libraryName = null;
string arch = (Is64Bit) ? "x64" : "x86";
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
libraryName = $"aws-crt-dotnet-{arch}.dll";
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
libraryName = $"libaws-crt-dotnet-{arch}.so";
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
libraryName = $"libaws-crt-dotnet-{arch}.dylib";
}
try
{
libraryPath = ExtractLibrary(libraryName);
// Work around virus scanners munching on a newly found DLL
int tries = 0;
do
{
crt = CRT.Loader.LoadLibrary(libraryPath);
if (crt.IsInvalid)
{
Thread.Sleep(10);
}
} while (crt.IsInvalid && tries++ < 100);
if (crt.IsInvalid)
{
string error = CRT.Loader.GetLastError();
throw new InvalidOperationException($"Unable to load {libraryPath}: error={error}");
}
}
catch (Exception ex)
{
throw new InvalidOperationException($"Unable to load {libraryPath}, exception occurred", ex);
}
Init();
}
public unsafe QueryFunctions(LibraryHandle handle)
{
Create = handle.GetUnmanagedDelegate <CreateQueryDelegate>();
Delete = handle.GetUnmanagedDelegate <DeleteQueryDelegate>();
Execute = handle.GetUnmanagedDelegate <ExecuteQueryDelegate>();
DeleteCursor = handle.GetUnmanagedDelegate <DeleteCursorDelegate>();
SetHints = handle.GetUnmanagedDelegate <SetHintsDelegate>();
AddOr = handle.GetUnmanagedDelegate <AddOrDelegate>();
CursorResult = handle.GetUnmanagedDelegate <CursorResultDelegate>();
NewBuffer = handle.GetUnmanagedDelegate <QueryFunctions.NewBufferDelegate>();
DeleteBuffer = handle.GetUnmanagedDelegate <QueryFunctions.DeleteBufferDelegate>();
BufferSize = handle.GetUnmanagedDelegate <GetSizeDelegate>();
BufferToString = handle.GetUnmanagedDelegate <ToStringDelegate>();
}
public unsafe CollectionFunctions(LibraryHandle handle)
{
CreateCollection = handle.GetUnmanagedDelegate <CreateCollectionDelegate>();
GetCollection = handle.GetUnmanagedDelegate <GetCollectionDelegate>();
Remove = handle.GetUnmanagedDelegate <RemoveCollectionDelegate>();
BeginTransaction = handle.GetUnmanagedDelegate <BeginTransactionDelegate>();
CommitTransaction = handle.GetUnmanagedDelegate <CommitTransactionDelegate>();
RollbackTransaction = handle.GetUnmanagedDelegate <RollbackTransactionDelegate>();
TransactionStatus = handle.GetUnmanagedDelegate <TransactionStatusDelegate>();
SyncCollection = handle.GetUnmanagedDelegate <SyncDelegate>();
SaveBson = handle.GetUnmanagedDelegate <SaveBsonDelegate>();
LoadBson = handle.GetUnmanagedDelegate <LoadBsonDelegate>();
DeleteBson = handle.GetUnmanagedDelegate <DeleteBsonDelegate>();
SetIndex = handle.GetUnmanagedDelegate <SetIndexDelegate>();
}
private unsafe Library(LibraryHandle libraryHandle)
{
LibraryHandle = libraryHandle;
Functions = new Functions(libraryHandle);
_getErrorMessage = LibraryHandle.GetUnmanagedDelegate <GetErrorMessage>();
_freeBson = libraryHandle.GetUnmanagedDelegate <FreeBsonDelegate>();
GetBsonData = libraryHandle.GetUnmanagedDelegate <BsonToStringDelegate>();
//_jsonToBson = libraryHandle.GetUnmanagedDelegate<JsonToBsonDelegate>();
var getVersion = LibraryHandle.GetUnmanagedDelegate <GetVersion>();
var version = getVersion(LibraryHandle);
if (version == IntPtr.Zero.ToPointer())
{
throw new Exception("Unable to get ejdb library version");
}
_version = new string(version); //UnixMarshal.PtrToString(vres, Encoding.UTF8);
_hexVersion = Convert.ToInt64("0x" + Version.Replace(".", ""), 16);
}
public Functions(LibraryHandle handle)
{
Database = new DatabaseFunctions(handle);
Collection = new CollectionFunctions(handle);
Query = new QueryFunctions(handle);
}
//==========================================================================
private static LibraryHandle GetOrLoadLibrary(string libVLCDirectory)
{
LibraryHandle library_handle = null;
lock (m_LibraryHandles)
{
if (libVLCDirectory != null)
{
if (!m_LibraryHandles.TryGetValue(libVLCDirectory, out library_handle))
{
m_LibraryHandles.Add(libVLCDirectory, library_handle = new LibraryHandle(libVLCDirectory));
}
++library_handle.ReferenceCounter;
return(library_handle);
}
if (m_DefaultLibraryHandle != null)
{
library_handle = m_DefaultLibraryHandle;
++library_handle.ReferenceCounter;
return(library_handle);
}
Debug.WriteLine("Searching for libvlc.dll...", "LibVLC");
string executing_assembly_path = Path.Combine(Path.GetDirectoryName(Path.GetFullPath(Assembly.GetExecutingAssembly().Location)), "VLC");
string entry_assembly_path = null;
if (Assembly.GetEntryAssembly() != null)
{
entry_assembly_path = Path.Combine(Path.GetDirectoryName(Path.GetFullPath(Assembly.GetEntryAssembly().Location)), "VLC");
}
string current_directory_path = Path.Combine(System.IO.Directory.GetCurrentDirectory(), "VLC");
string program_files_path = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ProgramFilesX86), "VideoLAN", "VLC");
foreach (string directory in
new string[]
{
executing_assembly_path,
entry_assembly_path,
current_directory_path,
program_files_path
})
{
if (System.IO.Directory.Exists(directory))
{
try
{
m_DefaultLibraryHandle = GetOrLoadLibrary(directory);
Debug.WriteLine(String.Format("Found libvlc.dll in directory {0}.", directory), "LibVLC");
return(m_DefaultLibraryHandle);
}
catch (Exception e)
{
Debug.WriteLine(String.Format("Caught exception of type {0} while loading libvlc.dll from {1}: {2}",
e.GetType().Name,
directory,
e.Message),
"LibVLC");
}
}
}
throw new DllNotFoundException("No valid libvlc.dll could be found; VLC is probably not installed!");
} // lock(m_LibraryHandles)
}
private static extern IntPtr GetProcAddress(LibraryHandle hModule, string lpProcName);
