internal DB_LOCK lock_get(uint locker, uint flags, DBT arg2, db_lockmode_t mode)
{
int err = 0;
DB_LOCK ret = lock_get(locker, flags, DatabaseEntry.fromDBT(arg2), mode, ref err);
DatabaseException.ThrowException(err);
return(ret);
}
internal int get_key(DatabaseEntry key)
{
try {
int ret;
ret = libdb_csharpPINVOKE.DB_SEQUENCE_get_key(swigCPtr, DBT.getCPtr(DatabaseEntry.getDBT(key)));
DatabaseException.ThrowException(ret);
return(ret);
} finally {
GC.KeepAlive(key);
}
}
private static int doRepTransport(IntPtr envp,
IntPtr controlp, IntPtr recp, IntPtr lsnp, int envid, uint flags) {
DB_ENV dbenv = new DB_ENV(envp, false);
DBT control = new DBT(controlp, false);
DBT rec = new DBT(recp, false);
DB_LSN tmplsn = new DB_LSN(lsnp, false);
LSN dblsn = new LSN(tmplsn.file, tmplsn.offset);
return dbenv.api2_internal.transportHandler(
DatabaseEntry.fromDBT(control),
DatabaseEntry.fromDBT(rec), dblsn, envid, flags);
}
internal int write(DatabaseEntry data, Int64 offset, uint flags)
{
try {
int ret;
ret = libdb_csharpPINVOKE.DB_STREAM_write(swigCPtr, DBT.getCPtr(DatabaseEntry.getDBT(data)), offset, flags);
DatabaseException.ThrowException(ret);
return(ret);
} finally {
GC.KeepAlive(data);
}
}
internal int rep_start(DatabaseEntry cdata, uint flags)
{
try {
int ret;
ret = libdb_csharpPINVOKE.DB_ENV_rep_start(swigCPtr, DBT.getCPtr(DatabaseEntry.getDBT(cdata)), flags);
DatabaseException.ThrowException(ret);
return(ret);
} finally {
GC.KeepAlive(cdata);
}
}
internal int exists(DB_TXN txn, DatabaseEntry key, uint flags)
{
try {
int ret;
ret = libdb_csharpPINVOKE.DB_exists(swigCPtr, DB_TXN.getCPtr(txn), DBT.getCPtr(DatabaseEntry.getDBT(key)), flags);
DatabaseException.ThrowException(ret);
return(ret);
} finally {
GC.KeepAlive(key);
}
}
internal int put(DatabaseEntry key, DatabaseEntry data, uint flags)
{
try {
int ret;
ret = libdb_csharpPINVOKE.DBC_put(swigCPtr, DBT.getCPtr(DatabaseEntry.getDBT(key)), DBT.getCPtr(DatabaseEntry.getDBT(data)), flags);
DatabaseException.ThrowException(ret);
return(ret);
} finally {
GC.KeepAlive(key);
GC.KeepAlive(data);
}
}
internal int rep_process_message(DatabaseEntry control, DatabaseEntry rec, int envid, DB_LSN ret_lsnp)
{
try {
int ret;
ret = libdb_csharpPINVOKE.DB_ENV_rep_process_message(swigCPtr, DBT.getCPtr(DatabaseEntry.getDBT(control)), DBT.getCPtr(DatabaseEntry.getDBT(rec)), envid, DB_LSN.getCPtr(ret_lsnp));
DatabaseException.ThrowException(ret);
return(ret);
} finally {
GC.KeepAlive(control);
GC.KeepAlive(rec);
}
}
internal int compact(DB_TXN txn, DatabaseEntry start, DatabaseEntry stop, DB_COMPACT cdata, uint flags, DatabaseEntry end)
{
try {
int ret;
ret = libdb_csharpPINVOKE.DB_compact(swigCPtr, DB_TXN.getCPtr(txn), DBT.getCPtr(DatabaseEntry.getDBT(start)), DBT.getCPtr(DatabaseEntry.getDBT(stop)), DB_COMPACT.getCPtr(cdata), flags, DBT.getCPtr(DatabaseEntry.getDBT(end)));
DatabaseException.ThrowException(ret);
return(ret);
} finally {
GC.KeepAlive(start);
GC.KeepAlive(stop);
GC.KeepAlive(end);
}
}
private static int doCompare(IntPtr dbp,
IntPtr dbtp1, IntPtr dbtp2, IntPtr locp)
{
DB db = new DB(dbp, false);
DBT dbt1 = new DBT(dbtp1, false);
DBT dbt2 = new DBT(dbtp2, false);
if (locp != IntPtr.Zero)
locp = IntPtr.Zero;
BTreeDatabase btdb = (BTreeDatabase)(db.api_internal);
return btdb.Compare(
DatabaseEntry.fromDBT(dbt1), DatabaseEntry.fromDBT(dbt2));
}
private static int doCompare(IntPtr dbp, IntPtr dbtp1, IntPtr dbtp2)
{
DB db = new DB(dbp, false);
DBT dbt1 = new DBT(dbtp1, false);
DBT dbt2 = new DBT(dbtp2, false);
return ((HashDatabase)(db.api_internal)).compareHandler(
DatabaseEntry.fromDBT(dbt1), DatabaseEntry.fromDBT(dbt2));
}
private static uint doPrefixCompare(
IntPtr dbp, IntPtr dbtp1, IntPtr dbtp2)
{
DB db = new DB(dbp, false);
DBT dbt1 = new DBT(dbtp1, false);
DBT dbt2 = new DBT(dbtp2, false);
SecondaryBTreeDatabase tmp =
(SecondaryBTreeDatabase)db.api_internal;
return tmp.prefixCompareHandler(
DatabaseEntry.fromDBT(dbt1), DatabaseEntry.fromDBT(dbt2));
}
internal int open(DB_TXN txn, DatabaseEntry key, uint flags)
{
try {
int ret;
ret = libdb_csharpPINVOKE.DB_SEQUENCE_open(swigCPtr, DB_TXN.getCPtr(txn), DBT.getCPtr(DatabaseEntry.getDBT(key)), flags);
if (ret != 0)
{
close(0);
}
DatabaseException.ThrowException(ret);
return(ret);
} finally {
GC.KeepAlive(key);
}
}
private static int doDecompress(IntPtr dbp, IntPtr prevKeyp,
IntPtr prevDatap, IntPtr cmpp, IntPtr destKeyp, IntPtr destDatap)
{
DB db = new DB(dbp, false);
DatabaseEntry prevKey =
DatabaseEntry.fromDBT(new DBT(prevKeyp, false));
DatabaseEntry prevData =
DatabaseEntry.fromDBT(new DBT(prevDatap, false));
DBT compressed = new DBT(cmpp, false);
DBT destKey = new DBT(destKeyp, false);
DBT destData = new DBT(destDatap, false);
BTreeDatabase btdb = (BTreeDatabase)(db.api_internal);
uint size;
try {
KeyValuePair<DatabaseEntry, DatabaseEntry> kvp = btdb.Decompress(prevKey, prevData, compressed.data, out size);
int keylen = kvp.Key.Data.Length;
int datalen = kvp.Value.Data.Length;
destKey.size = (uint)keylen;
destData.size = (uint)datalen;
if (keylen > destKey.ulen ||
datalen > destData.ulen)
return DbConstants.DB_BUFFER_SMALL;
Marshal.Copy(kvp.Key.Data, 0, destKey.dataPtr, keylen);
Marshal.Copy(kvp.Value.Data, 0, destData.dataPtr, datalen);
compressed.size = size;
return 0;
} catch (Exception) {
return -1;
}
}
private static int doCompare(IntPtr dbp,
IntPtr dbtp1, IntPtr dbtp2, IntPtr locp)
{
DB db = new DB(dbp, false);
DBT dbt1 = new DBT(dbtp1, false);
DBT dbt2 = new DBT(dbtp2, false);
if (locp != IntPtr.Zero)
locp = IntPtr.Zero;
SecondaryBTreeDatabase tmp =
(SecondaryBTreeDatabase)db.api_internal;
return tmp.compareHandler(
DatabaseEntry.fromDBT(dbt1), DatabaseEntry.fromDBT(dbt2));
}
internal int key_range(DB_TXN txn, DatabaseEntry key, DB_KEY_RANGE range, uint flags)
{
try {
int ret;
ret = libdb_csharpPINVOKE.DB_key_range(swigCPtr, DB_TXN.getCPtr(txn), DBT.getCPtr(DatabaseEntry.getDBT(key)), DB_KEY_RANGE.getCPtr(range), flags);
DatabaseException.ThrowException(ret);
return(ret);
} finally {
GC.KeepAlive(key);
}
}
private static uint doPrefixCompare(
IntPtr dbp, IntPtr dbtp1, IntPtr dbtp2)
{
DB db = new DB(dbp, false);
DBT dbt1 = new DBT(dbtp1, false);
DBT dbt2 = new DBT(dbtp2, false);
BTreeDatabase btdb = (BTreeDatabase)(db.api_internal);
return btdb.PrefixCompare(
DatabaseEntry.fromDBT(dbt1), DatabaseEntry.fromDBT(dbt2));
}
internal static HandleRef getCPtr(DBT obj)
{
return (obj == null) ? new HandleRef(null, IntPtr.Zero) : obj.swigCPtr;
}
internal static global::System.Runtime.InteropServices.HandleRef getCPtr(DBT obj)
{
return((obj == null) ? new global::System.Runtime.InteropServices.HandleRef(null, global::System.IntPtr.Zero) : obj.swigCPtr);
}
private static int doDupCompare(
IntPtr dbp, IntPtr dbt1p, IntPtr dbt2p)
{
DB db = new DB(dbp, false);
DBT dbt1 = new DBT(dbt1p, false);
DBT dbt2 = new DBT(dbt2p, false);
SecondaryHashDatabase tmp = (SecondaryHashDatabase)db.api_internal;
return tmp.DupCompare(
DatabaseEntry.fromDBT(dbt1), DatabaseEntry.fromDBT(dbt2));
}
internal DB_LOCK lock_get(uint locker, uint flags, DBT arg2, db_lockmode_t mode)
{
int err = 0;
DB_LOCK ret = lock_get(locker, flags, DatabaseEntry.fromDBT(arg2), mode, ref err);
DatabaseException.ThrowException(err);
return ret;
}
internal static HandleRef getCPtr(DBT obj)
{
return((obj == null) ? new HandleRef(null, IntPtr.Zero) : obj.swigCPtr);
}
internal int send_request(IntPtr[] request, uint nrequest, DatabaseEntry response, uint timeout, uint flags)
{
try {
int ret;
ret = libdb_csharpPINVOKE.DB_CHANNEL_send_request(swigCPtr, request, nrequest, DBT.getCPtr(DatabaseEntry.getDBT(response)).Handle, timeout, flags);
DatabaseException.ThrowException(ret);
return(ret);
} finally {
GC.KeepAlive(response);
}
}
private DatabaseEntry(DBT dbtp)
{
dbt = dbtp;
Data = (byte[])dbtp.data.Clone();
}
private static int doCompress(IntPtr dbp, IntPtr prevKeyp,
IntPtr prevDatap, IntPtr keyp, IntPtr datap, IntPtr destp)
{
DB db = new DB(dbp, false);
DatabaseEntry prevKey =
DatabaseEntry.fromDBT(new DBT(prevKeyp, false));
DatabaseEntry prevData =
DatabaseEntry.fromDBT(new DBT(prevDatap, false));
DatabaseEntry key = DatabaseEntry.fromDBT(new DBT(keyp, false));
DatabaseEntry data = DatabaseEntry.fromDBT(new DBT(datap, false));
DBT dest = new DBT(destp, false);
BTreeDatabase btdb = (BTreeDatabase)(db.api_internal);
byte[] arr = new byte[(int)dest.ulen];
int len;
try {
if (btdb.Compress(prevKey, prevData, key, data, ref arr, out len)) {
Marshal.Copy(arr, 0, dest.dataPtr, len);
dest.size = (uint)len;
return 0;
} else {
return DbConstants.DB_BUFFER_SMALL;
}
} catch (Exception) {
return -1;
}
}
/*
* Copy between the C# byte array and the C library's void * as needed.
* The library will call this method when it needs data from us or has
* data to give us. This prevents us from needing to copy all data in
* and all data out. The callback to this method gets set when the
* DatabaseEnvironment is created (or the Database if created w/o an
* environment.)
*/
internal static int dbt_usercopy(IntPtr dbtp, uint offset, IntPtr buf, uint size, uint flags)
{
DBT dbt = new DBT(dbtp, false);
DatabaseEntry ent = dbt.app_data;
if (flags == DbConstants.DB_USERCOPY_GETDATA)
Marshal.Copy(ent.Data, 0, buf, (int)size);
else {
/*
* If the offset is zero, we're writing a new buffer and can
* simply allocate byte array. If the offset is not zero,
* however, we are appending to the exisiting array. Since we
* can't extend it, we have to allocate a new one and copy.
*
* Our caller is setting dbt.size, so set ent._data directly,
* since ent.Data would overwrite dbt.size.
*/
if (offset != 0) {
byte[] t = new byte[ent.Data.Length + (int)size];
ent.Data.CopyTo(t, 0);
ent._data = t;
} else
ent._data = new byte[(int)size];
Marshal.Copy(buf, ent.Data, (int)offset, (int)size);
}
return 0;
}
private static int doDupCompare(
IntPtr dbp, IntPtr dbt1p, IntPtr dbt2p)
{
DB db = new DB(dbp, false);
DBT dbt1 = new DBT(dbt1p, false);
DBT dbt2 = new DBT(dbt2p, false);
BTreeDatabase btdb = (BTreeDatabase)(db.api_internal);
return btdb.DupCompare(
DatabaseEntry.fromDBT(dbt1), DatabaseEntry.fromDBT(dbt2));
}
internal static DatabaseEntry fromDBT(DBT dbt)
{
if (dbt.app_data != null)
return dbt.app_data;
else
return new DatabaseEntry(dbt);
}
private static int doDupCompare(
IntPtr dbp, IntPtr dbt1p, IntPtr dbt2p, IntPtr locp)
{
DB db = new DB(dbp, false);
DBT dbt1 = new DBT(dbt1p, false);
DBT dbt2 = new DBT(dbt2p, false);
if (locp != IntPtr.Zero)
locp = IntPtr.Zero;
return ((SecondaryBTreeDatabase)(db.api_internal)).DupCompare(
DatabaseEntry.fromDBT(dbt1), DatabaseEntry.fromDBT(dbt2));
}
/// <summary>
/// Protected method to call the key generation function.
/// </summary>
/// <param name="dbp">Secondary DB Handle</param>
/// <param name="keyp">Primary Key</param>
/// <param name="datap">Primary Data</param>
/// <param name="skeyp">Scondary Key</param>
/// <returns>0 on success, !0 on failure</returns>
protected static int doAssociate(
IntPtr dbp, IntPtr keyp, IntPtr datap, IntPtr skeyp) {
DB db = new DB(dbp, false);
DBT key = new DBT(keyp, false);
DBT data = new DBT(datap, false);
DBT skey = new DBT(skeyp, false);
IntPtr dataPtr, sdataPtr;
int nrecs, dbt_sz;
DatabaseEntry s =
((SecondaryDatabase)db.api_internal).KeyGen(
DatabaseEntry.fromDBT(key), DatabaseEntry.fromDBT(data));
if (s == null)
return DbConstants.DB_DONOTINDEX;
if (s is MultipleDatabaseEntry) {
MultipleDatabaseEntry mde = (MultipleDatabaseEntry)s;
nrecs = mde.nRecs;
/*
* Allocate an array of nrecs DBT in native memory. The call
* returns sizeof(DBT), so that we know where one DBT ends and
* the next begins.
*/
dbt_sz = (int)libdb_csharp.alloc_dbt_arr(null, nrecs, out sdataPtr);
/*
* We need a managed array to copy each DBT into and then we'll
* copy the managed array to the native array we just allocated.
* We are not able to copy native -> native.
*/
byte[] arr = new byte[nrecs * dbt_sz];
IntPtr p;
int off = 0;
/* Copy each DBT into the array. */
foreach (DatabaseEntry dbt in mde) {
/* Allocate room for the data in native memory. */
dataPtr = libdb_csharp.__os_umalloc(null, dbt.size);
Marshal.Copy(dbt.Data, 0, dataPtr, (int)dbt.size);
dbt.dbt.dataPtr = dataPtr;
dbt.flags |= DbConstants.DB_DBT_APPMALLOC;
p = DBT.getCPtr(DatabaseEntry.getDBT(dbt)).Handle;
Marshal.Copy(p, arr, off, dbt_sz);
off += dbt_sz;
}
Marshal.Copy(arr, 0, sdataPtr, nrecs * dbt_sz);
skey.dataPtr = sdataPtr;
skey.size = (uint)mde.nRecs;
skey.flags = DbConstants.DB_DBT_MULTIPLE | DbConstants.DB_DBT_APPMALLOC;
} else
skey.data = s.Data;
return 0;
}
private static void doAppend(IntPtr dbp, IntPtr dbtp1, uint recno)
{
DB db = new DB(dbp, false);
DBT dbt1 = new DBT(dbtp1, false);
RecnoDatabase rdb = (RecnoDatabase)(db.api_internal);
rdb.AppendCallback(DatabaseEntry.fromDBT(dbt1), recno);
}
private DB_LOCK lock_get(uint locker, uint flags, DatabaseEntry arg2, db_lockmode_t mode, ref int err)
{
try {
DB_LOCK ret = new DB_LOCK(libdb_csharpPINVOKE.DB_ENV_lock_get(swigCPtr, locker, flags, DBT.getCPtr(DatabaseEntry.getDBT(arg2)), (int)mode, ref err), true);
return(ret);
} finally {
GC.KeepAlive(arg2);
}
}
/// <summary>
/// Create a new, empty DatabaseEntry object.
/// </summary>
public DatabaseEntry()
{
dbt = new DBT();
if (!this.GetType().IsGenericType)
dbt.app_data = this;
}
internal int log_put(DB_LSN lsn, DatabaseEntry data, uint flags)
{
try {
int ret;
ret = libdb_csharpPINVOKE.DB_ENV_log_put(swigCPtr, DB_LSN.getCPtr(lsn), DBT.getCPtr(DatabaseEntry.getDBT(data)), flags);
DatabaseException.ThrowException(ret);
return(ret);
} finally {
GC.KeepAlive(data);
}
}
/// <summary>
/// Protected method to nullify a foreign key
/// </summary>
/// <param name="dbp">Secondary DB Handle</param>
/// <param name="keyp">Primary Key</param>
/// <param name="datap">Primary Data</param>
/// <param name="fkeyp">Foreign Key</param>
/// <param name="changed">Whether the foreign key has changed</param>
/// <returns>0 on success, !0 on failure</returns>
protected static int doNullify(IntPtr dbp,
IntPtr keyp, IntPtr datap, IntPtr fkeyp, ref int changed) {
DB db = new DB(dbp, false);
DBT key = new DBT(keyp, false);
DBT data = new DBT(datap, false);
DBT fkey = new DBT(fkeyp, false);
DatabaseEntry d = ((SecondaryDatabase)db.api_internal).Nullifier(
DatabaseEntry.fromDBT(key),
DatabaseEntry.fromDBT(data), DatabaseEntry.fromDBT(fkey));
if (d == null)
changed = 0;
else {
changed = 1;
data.data = d.Data;
}
return 0;
}
/// <summary>
/// Protected method to call the key generation function.
/// </summary>
/// <param name="dbp">Secondary DB Handle</param>
/// <param name="keyp">Primary Key</param>
/// <param name="datap">Primary Data</param>
/// <param name="skeyp">Scondary Key</param>
/// <returns>0 on success, !0 on failure</returns>
protected static int doAssociate(
IntPtr dbp, IntPtr keyp, IntPtr datap, IntPtr skeyp)
{
DB db = new DB(dbp, false);
DBT key = new DBT(keyp, false);
DBT data = new DBT(datap, false);
DBT skey = new DBT(skeyp, false);
DatabaseEntry s =
((SecondaryDatabase)db.api_internal).KeyGen(
DatabaseEntry.fromDBT(key), DatabaseEntry.fromDBT(data));
if (s == null)
return DbConstants.DB_DONOTINDEX;
skey.data = s.Data;
return 0;
}
