public static Manager CreateManager(string envdir)
{
EnvironmentConfig envconf = new EnvironmentConfig();
envconf.CacheSize = 50 * 1024 * 1024;
envconf.Create = true;
envconf.InitializeCache = true;
envconf.Transactional = true;
envconf.InitializeLocking = true;
envconf.InitializeLogging = true;
envconf.Recover = true;
ManagerConfig mgrconfig = new ManagerConfig();
mgrconfig.AdoptEnvironment = true;
Environment env = new Environment(envdir, envconf);
try
{
return new Manager(env, mgrconfig);
}
catch(System.Exception e)
{
env.Dispose();
throw e;
}
}
public static void Main(string[] args)
{
// The path the directory where you want to place the environment
// must exist!!
string environmentPath = "/path/to/environment/directory";
// Environment configuration is minimal:
// create + 50MB cache
// no transactions, logging, or locking
EnvironmentConfig config = new EnvironmentConfig();
config.CacheSize = 50 * 1024 * 1024;
config.Create = true;
config.InitializeCache = true;
Environment env = new Environment(environmentPath, config);
// Create Manager using that environment, no DBXML flags
Manager mgr = new Manager(env, new ManagerConfig());
// Multiple containers can be opened in the same database environment
using(Container container1 = mgr.CreateContainer(null, "myContainer1"))
{
using(Container container2 = mgr.CreateContainer(null, "myContainer2"))
{
using(Container container3 = mgr.CreateContainer(null, "myContainer3"))
{
// do work here //
}
}
}
}
public Environment(string home, EnvironmentConfig config)
{
this.env_ = null;
this.envClosed_ = true;
this.env_ = config.openDbEnv(home);
this.envClosed_ = false;
this.config_ = config;
}
public Environment(string home, EnvironmentConfig config)
{
this.env_ = null;
this.envClosed_ = true;
this.env_ = config.openDbEnv(home);
this.envClosed_ = false;
this.config_ = config;
}
public static void Remove(string home, bool force, EnvironmentConfig config)
{
DbEnv env = config.createDbEnv();
uint flags = 0;
if (force)
{
flags |= (uint)DbXml.DB_FORCE;
}
if (config.UseEnvironment)
{
flags |= (uint)DbXml.DB_USE_ENVIRON;
}
if (config.UseEnvironmentRoot)
{
flags |= (uint)DbXml.DB_USE_ENVIRON_ROOT;
}
env.remove(home, flags);
}
internal Environment(DbEnv e)
{
this.env_ = e;
this.envClosed_ = true;
this.config_ = null;
}
public Environment(EnvironmentConfig config)
: this(null, config)
{
}
public static void Remove(string home, bool force, EnvironmentConfig config)
{
DbEnv env = config.createDbEnv();
uint flags = 0;
if (force)
{
flags |= (uint) DbXml.DB_FORCE;
}
if (config.UseEnvironment)
{
flags |= (uint) DbXml.DB_USE_ENVIRON;
}
if (config.UseEnvironmentRoot)
{
flags |= (uint) DbXml.DB_USE_ENVIRON_ROOT;
}
env.remove(home, flags);
}
internal Environment(DbEnv e)
{
this.env_ = e;
this.envClosed_ = true;
this.config_ = null;
}
public Environment(EnvironmentConfig config) : this(null, config)
{
}