public void Test3()
{
string path = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "mdbx2");
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
using (MdbxEnvironment env = new MdbxEnvironment())
{
EnvironmentFlag flags = EnvironmentFlag.NoTLS |
EnvironmentFlag.NoMetaSync |
EnvironmentFlag.Coalesce |
EnvironmentFlag.LifoReclaim;
env.SetMaxDatabases(20)
.SetMaxReaders(128)
.SetMapSize(10485760 * 10)
.Open(path, flags, Convert.ToInt32("666", 8));
DatabaseOption option = DatabaseOption.Create | DatabaseOption.IntegerKey;
// add some values
using (MdbxTransaction tran = env.BeginTransaction())
{
MdbxDatabase db = tran.OpenDatabase("cursor_test3", option);
for (long i = 0; i < 1000000; i++)
{
db.Put(i, Guid.NewGuid().ToByteArray());
}
tran.Commit();
}
using (MdbxTransaction tran = env.BeginTransaction(TransactionOption.ReadOnly))
{
MdbxDatabase db = tran.OpenDatabase("cursor_test3", option);
using (MdbxCursor cursor = db.OpenCursor())
{
long key = 0;
byte[] value = null;
cursor.Get(ref key, ref value, CursorOp.First);
long index = 0;
Assert.Equal(index, key);
key = 0;
value = null;
while (cursor.Get(ref key, ref value, CursorOp.Next))
{
index++;
Assert.Equal(index, key);
}
}
}
env.Close();
}
}
public static void Open(IntPtr env, string path, EnvironmentFlag flags, int mode)
{
int err = _openDelegate(env, path, (int)flags, mode);
if (err != 0)
{
throw new MdbxException("mdbx_env_open", err);
}
}
public static void SetFlags(IntPtr env, EnvironmentFlag flags, bool onoff)
{
int err = _setFlagsDelegate(env, (uint)flags, onoff ? 1 : 0);
if (err != 0)
{
throw new MdbxException("mdbx_env_set_flags", err);
}
}
public void SetFlags(EnvironmentFlag flags, SetOption option = SetOption.Add)
{
if (!closed && _envPtr != IntPtr.Zero)
{
Env.SetFlags(_envPtr, flags, option == SetOption.Add);
}
else
{
throw new InvalidOperationException("MDBX environment is not open.");
}
}
public IHost BuildHost()
#endif
{
// SAMPLE: what-the-cli-is-doing
// The --log-level flag value overrides your application's
// LogLevel
if (LogLevelFlag.HasValue)
{
Console.WriteLine($"Overwriting the minimum log level to {LogLevelFlag.Value}");
HostBuilder.ConfigureLogging(x => x.SetMinimumLevel(LogLevelFlag.Value));
}
if (VerboseFlag)
{
Console.WriteLine("Verbose flag is on.");
// The --verbose flag adds console and
// debug logging, as well as setting
// the minimum logging level down to debug
HostBuilder.ConfigureLogging(x =>
{
x.SetMinimumLevel(LogLevel.Debug);
});
}
// The --environment flag is used to set the environment
// property on the IHostedEnvironment within your system
if (EnvironmentFlag.IsNotEmpty())
{
Console.WriteLine($"Overwriting the environment to `{EnvironmentFlag}`");
HostBuilder.UseEnvironment(EnvironmentFlag);
}
if (ConfigFlag.Any())
{
HostBuilder.ConfigureAppConfiguration(c => c.AddInMemoryCollection(ConfigFlag));
}
// ENDSAMPLE
return(HostBuilder.Build());
}
public void Test3()
{
string path = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "mdbx");
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
using (MdbxEnvironment env = new MdbxEnvironment())
{
env.Open(path, EnvironmentFlag.NoTLS, Convert.ToInt32("666", 8));
EnvironmentFlag flags = env.GetFlags();
env.SetFlags(EnvironmentFlag.NoSync);
env.Close();
}
}
public JasperRuntime BuildRuntime()
{
// SAMPLE: what-the-cli-is-doing
// The --log-level flag value overrides your application's
// LogLevel
if (LogLevelFlag.HasValue)
{
Registry.ConfigureLogging(x => x.SetMinimumLevel(LogLevelFlag.Value));
}
if (VerboseFlag)
{
Console.WriteLine("Verbose flag is on.");
// The --verbose flag adds console and
// debug logging, as well as setting
// the minimum logging level down to debug
Registry.ConfigureLogging(x =>
{
x.SetMinimumLevel(LogLevel.Debug);
x.AddConsole();
x.AddDebug();
});
}
// The --environment flag is used to set the environment
// property on the IHostedEnvironment within your system
if (EnvironmentFlag.IsNotEmpty())
{
Registry.UseEnvironment(EnvironmentFlag);
}
// ENDSAMPLE
return(JasperRuntime.For(Registry));
}
/// <summary>
/// Open an environment handle.
///
/// This function allocates memory for a MDBX_env structure. To release
/// the allocated memory and discard the handle, call mdbx_env_close().
/// possible exceptions are:
/// - MDBX_VERSION_MISMATCH - the version of the MDBX library doesn't match the
/// version that created the database environment.
/// - MDBX_INVALID - the environment file headers are corrupted.
/// - MDBX_ENOENT - the directory specified by the path parameter
/// doesn't exist.
/// - MDBX_EACCES - the user didn't have permission to access
/// the environment files.
/// - MDBX_EAGAIN - the environment was locked by another process.
/// </summary>
/// <param name="path"></param>
/// <param name="flags"></param>
/// <param name="mode"></param>
public void Open(string path, EnvironmentFlag flags, int mode)
{
Env.Open(_envPtr, path, flags, mode);
}
