/// <summary>
/// Creates a new instance of LightningEnvironment.
/// </summary>
/// <param name="directory">Directory for storing database files.</param>
/// <param name="openFlags">Database open options.</param>
/// <param name="accessMode">Unix file access privelegies (optional). Only makes sense on unix operationg systems.</param>
public LightningEnvironment(string directory, EnvironmentOpenFlags openFlags = EnvironmentOpenFlags.None, UnixAccessMode accessMode = UnixAccessMode.Default)
{
if (String.IsNullOrWhiteSpace(directory))
throw new ArgumentException("Invalid directory name");
IntPtr handle = default(IntPtr);
NativeMethods.Execute(lib => lib.mdb_env_create(out handle));
_shouldDispose = true;
_handle = handle;
_accessMode = accessMode;
this.Directory = directory;
_openFlags = openFlags;
if (LightningConfig.Environment.DefaultMapSize != LightningConfig.Environment.LibDefaultMapSize)
this.MapSize = LightningConfig.Environment.DefaultMapSize;
else
_mapSize = LightningConfig.Environment.LibDefaultMapSize;
if (LightningConfig.Environment.DefaultMaxDatabases != LightningConfig.Environment.LibDefaultMaxDatabases)
this.MaxDatabases = LightningConfig.Environment.DefaultMaxDatabases;
else
_maxDbs = LightningConfig.Environment.LibDefaultMaxDatabases;
_openedDatabases = new ConcurrentDictionary<string, LightningDatabase>();
_databasesForReuse = new HashSet<uint>();
ConverterStore = new ConverterStore();
var defaultConverters = new DefaultConverters();
defaultConverters.RegisterDefault(this);
}
/// <summary>
/// Open the environment.
/// </summary>
public void Open(EnvironmentOpenFlags openFlags = EnvironmentOpenFlags.None, UnixAccessMode accessMode = UnixAccessMode.Default)
{
if (IsOpened)
{
throw new InvalidOperationException("Environment is already opened.");
}
if (!openFlags.HasFlag(EnvironmentOpenFlags.NoSubDir) && !Directory.Exists(Path))
{
Directory.CreateDirectory(Path);
}
if (openFlags.HasFlag(EnvironmentOpenFlags.NoSubDir) && !Directory.Exists(System.IO.Path.GetDirectoryName(Path)))
{
Directory.CreateDirectory(System.IO.Path.GetDirectoryName(Path));
}
try
{
mdb_env_open(_handle, Path, openFlags, accessMode);
}
catch (Exception ex)
{
throw new LightningException($"Failed to open environment at path {Path}", ex);
}
IsOpened = true;
}
public LightningEnvironment(string directory, EnvironmentOpenFlags openFlags)
{
if (String.IsNullOrWhiteSpace(directory))
throw new ArgumentException("Invalid directory name");
IntPtr handle = default(IntPtr);
Native.Execute(() => Native.mdb_env_create(out handle));
_shouldDispose = true;
_handle = handle;
this.Directory = directory;
_openFlags = openFlags;
_mapSize = DefaultMapSize;
_maxDbs = DefaultMaxDatabases;
_openedDatabases = new ConcurrentDictionary<string, LightningDatabase>();
_databasesForReuse = new HashSet<uint>();
ConverterStore = new ConverterStore();
var defaultConverters = new DefaultConverters();
defaultConverters.RegisterDefault(this);
}
public LightningEnvironment(string directory, EnvironmentOpenFlags openFlags, UnixAccessMode accessMode = UnixAccessMode.Default)
{
if (String.IsNullOrWhiteSpace(directory))
throw new ArgumentException("Invalid directory name");
IntPtr handle = default(IntPtr);
Native.Execute(lib => lib.mdb_env_create(out handle));
_shouldDispose = true;
_handle = handle;
_accessMode = accessMode;
this.Directory = directory;
_openFlags = openFlags;
_mapSize = DefaultMapSize;
_maxDbs = DefaultMaxDatabases;
_openedDatabases = new ConcurrentDictionary<string, LightningDatabase>();
_databasesForReuse = new HashSet<uint>();
ConverterStore = new ConverterStore();
var defaultConverters = new DefaultConverters();
defaultConverters.RegisterDefault(this);
}
/// <summary>
/// Open the environment.
/// </summary>
public void Open(EnvironmentOpenFlags openFlags = EnvironmentOpenFlags.None, UnixAccessMode accessMode = UnixAccessMode.Default)
{
if (IsOpened)
{
throw new InvalidOperationException("Environment is already opened.");
}
if (!Directory.Exists(Path))
{
Directory.CreateDirectory(Path);
}
mdb_env_open(_handle, Path, openFlags, accessMode);
IsOpened = true;
}
public static LmdbEnv CreateDb(string folder, long size,
EnvironmentOpenFlags flags = EnvironmentOpenFlags.None)
{
if (!Directory.Exists(folder))
{
Directory.CreateDirectory(folder);
}
var env = new LightningEnvironment(folder, new EnvironmentConfiguration()
{
MaxDatabases = 1,
MapSize = size,
MaxReaders = 1024 * 4
});
var readOnly = (flags & EnvironmentOpenFlags.ReadOnly) == EnvironmentOpenFlags.ReadOnly;
env.Open(flags);
LightningDatabase db;
if (readOnly)
{
using (var tx = env.BeginTransaction(TransactionBeginFlags.ReadOnly)) {
db = tx.OpenDatabase();
tx.Commit();
}
}
else
{
var config = new DatabaseConfiguration()
{
Flags = DatabaseOpenFlags.Create
};
using (var tx = env.BeginTransaction()) {
db = tx.OpenDatabase(configuration: config);
tx.Commit();
}
}
return(new LmdbEnv(db, env));
}
public static int mdb_env_open(IntPtr env, string path, EnvironmentOpenFlags flags, UnixAccessMode mode)
{
return(check(LmdbMethods.mdb_env_open(env, path, flags, mode)));
}
/// <summary>
/// Open the environment.
/// </summary>
public void Open(EnvironmentOpenFlags openFlags = EnvironmentOpenFlags.None, UnixAccessMode accessMode = UnixAccessMode.Default)
{
if(IsOpened)
throw new InvalidOperationException("Environment is already opened.");
if (!Directory.Exists(Path))
Directory.CreateDirectory(Path);
mdb_env_open(_handle, Path, openFlags, accessMode);
IsOpened = true;
}
int INativeLibraryFacade.mdb_env_open(IntPtr env, string path, EnvironmentOpenFlags flags, int mode)
{
return FallbackLibraryFacade.mdb_env_open(env, path, flags, mode);
}
int INativeLibraryFacade.mdb_env_open(IntPtr env, string path, EnvironmentOpenFlags flags, UnixAccessMode mode)
{
return(Native64BitLibraryFacade.mdb_env_open(env, path, flags, mode));
}
int INativeLibraryFacade.mdb_env_open(IntPtr env, string path, EnvironmentOpenFlags flags, UnixAccessMode mode)
{
return Native64BitLibraryFacade.mdb_env_open(env, path, flags, mode);
}
private static extern int mdb_env_open(IntPtr env, string path, EnvironmentOpenFlags flags, int mode);
internal static extern int mdb_env_open(IntPtr env, string path, EnvironmentOpenFlags flags, UnixAccessMode mode);
public static int mdb_env_open(IntPtr env, string path, EnvironmentOpenFlags flags, UnixAccessMode mode)
{
return check(LmdbMethods.mdb_env_open(env, path, flags, mode));
}
/// <summary>
/// Open the environment.
/// </summary>
public void Open(EnvironmentOpenFlags openFlags = EnvironmentOpenFlags.None, UnixAccessMode accessMode = UnixAccessMode.Default)
{
if(IsOpened)
throw new InvalidOperationException("Environment is already opened.");
if (!openFlags.HasFlag(EnvironmentOpenFlags.NoSubDir) && !Directory.Exists(Path))
Directory.CreateDirectory(Path);
try
{
mdb_env_open(_handle, Path, openFlags, accessMode);
}
catch(Exception ex)
{
throw new LightningException($"Failed to open environment at path {Path}", ex);
}
IsOpened = true;
}
int INativeLibraryFacade.mdb_env_open(IntPtr env, string path, EnvironmentOpenFlags flags, int mode)
{
return(FallbackLibraryFacade.mdb_env_open(env, path, flags, mode));
}
public static extern int mdb_env_open(IntPtr env, string path, EnvironmentOpenFlags flags, int mode);