internal OleDbHResult CreateAccessor(UnsafeNativeMethods.IAccessor iaccessor, int flags, ColumnBinding[] bindings)
{
int[] rowBindStatus = new int[BindingCount()];
_iaccessor = iaccessor;
OleDbHResult hr = iaccessor.CreateAccessor(flags, (IntPtr)rowBindStatus.Length, this, (IntPtr)_dataLength, out _accessorHandle, rowBindStatus);
for (int k = 0; k < rowBindStatus.Length; ++k)
{
if (DBBindStatus.OK != (DBBindStatus)rowBindStatus[k])
{
if (ODB.DBACCESSOR_PARAMETERDATA == flags)
{
throw ODB.BadStatus_ParamAcc(bindings[k].ColumnBindingOrdinal, (DBBindStatus)rowBindStatus[k]);
}
else if (ODB.DBACCESSOR_ROWDATA == flags)
{
throw ODB.BadStatusRowAccessor(bindings[k].ColumnBindingOrdinal, (DBBindStatus)rowBindStatus[k]);
}
else
{
Debug.Assert(false, "unknown accessor buffer");
}
}
}
return(hr);
}
internal OleDbHResult CreateAccessor(UnsafeNativeMethods.IAccessor iaccessor, int flags, ColumnBinding[] bindings)
{
OleDbHResult result = OleDbHResult.S_OK;
int[] rgStatus = new int[this.BindingCount()];
this._iaccessor = iaccessor;
Bid.Trace("<oledb.IAccessor.CreateAccessor|API|OLEDB>\n");
result = iaccessor.CreateAccessor(flags, (IntPtr)rgStatus.Length, this, (IntPtr)this._dataLength, out this._accessorHandle, rgStatus);
Bid.Trace("<oledb.IAccessor.CreateAccessor|API|OLEDB|RET> %08X{HRESULT}\n", result);
for (int i = 0; i < rgStatus.Length; i++)
{
if (rgStatus[i] != 0)
{
if (4 == flags)
{
throw ODB.BadStatus_ParamAcc(bindings[i].ColumnBindingOrdinal, (DBBindStatus)rgStatus[i]);
}
if (2 == flags)
{
throw ODB.BadStatusRowAccessor(bindings[i].ColumnBindingOrdinal, (DBBindStatus)rgStatus[i]);
}
}
}
return(result);
}
private void CreateAccessor()
{
Debug.Assert(System.Data.CommandType.Text == CommandType || System.Data.CommandType.StoredProcedure == CommandType, "CreateAccessor: incorrect CommandType");
Debug.Assert(null == _dbBindings, "CreateAccessor: already has dbBindings");
Debug.Assert(HasParameters(), "CreateAccessor: unexpected, no parameter collection");
// do this first in-case the command doesn't support parameters
UnsafeNativeMethods.ICommandWithParameters commandWithParameters = ICommandWithParameters();
OleDbParameterCollection collection = _parameters !;
OleDbParameter[] parameters = new OleDbParameter[collection.Count];
collection.CopyTo(parameters, 0);
// _dbBindings is used as a switch during ExecuteCommand, so don't set it until everything okay
Bindings bindings = new Bindings(parameters, collection.ChangeID);
for (int i = 0; i < parameters.Length; ++i)
{
bindings.ForceRebind |= parameters[i].BindParameter(i, bindings);
}
bindings.AllocateForAccessor(null, 0, 0);
ApplyParameterBindings(commandWithParameters, bindings.BindInfo !);
UnsafeNativeMethods.IAccessor iaccessor = IAccessor();
OleDbHResult hr = bindings.CreateAccessor(iaccessor, ODB.DBACCESSOR_PARAMETERDATA);
if (hr < 0)
{
ProcessResults(hr);
}
_dbBindings = bindings;
}
protected override bool ReleaseHandle()
{
this._iaccessor = null;
if (this._needToReset && this._haveData)
{
IntPtr handle = base.handle;
if (IntPtr.Zero != handle)
{
this.ResetValues(handle, null);
}
}
return(base.ReleaseHandle());
}
protected override bool ReleaseHandle()
{
// NOTE: The SafeHandle class guarantees this will be called exactly once.
_iaccessor = null;
if (_needToReset && _haveData)
{
IntPtr buffer = base.handle;
if (IntPtr.Zero != buffer)
{
ResetValues(buffer, null);
}
}
return(base.ReleaseHandle());
}
internal void Dispose()
{
int num;
this.ResetValues();
UnsafeNativeMethods.IAccessor accessor = this._iaccessor;
IntPtr hAccessor = this._accessorHandle;
this._iaccessor = null;
this._accessorHandle = ODB.DB_INVALID_HACCESSOR;
if (((ODB.DB_INVALID_HACCESSOR != hAccessor) && (accessor != null)) && (accessor.ReleaseAccessor(hAccessor, out num) < OleDbHResult.S_OK))
{
SafeNativeMethods.Wrapper.ClearErrorInfo();
}
base.Dispose();
}
internal new void Dispose()
{
ResetValues();
UnsafeNativeMethods.IAccessor iaccessor = _iaccessor;
IntPtr accessorHandle = _accessorHandle;
_iaccessor = null;
_accessorHandle = ODB.DB_INVALID_HACCESSOR;
if ((ODB.DB_INVALID_HACCESSOR != accessorHandle) && (null != iaccessor))
{
OleDbHResult hr;
int refcount;
hr = iaccessor.ReleaseAccessor(accessorHandle, out refcount);
if (hr < 0)
{ // ignore any error msgs
SafeNativeMethods.Wrapper.ClearErrorInfo();
}
}
base.Dispose();
}
internal OleDbHResult CreateAccessor(UnsafeNativeMethods.IAccessor iaccessor, int flags, ColumnBinding[] bindings)
{
OleDbHResult result = OleDbHResult.S_OK;
int[] rgStatus = new int[this.BindingCount()];
this._iaccessor = iaccessor;
Bid.Trace("<oledb.IAccessor.CreateAccessor|API|OLEDB>\n");
result = iaccessor.CreateAccessor(flags, (IntPtr) rgStatus.Length, this, (IntPtr) this._dataLength, out this._accessorHandle, rgStatus);
Bid.Trace("<oledb.IAccessor.CreateAccessor|API|OLEDB|RET> %08X{HRESULT}\n", result);
for (int i = 0; i < rgStatus.Length; i++)
{
if (rgStatus[i] != 0)
{
if (4 == flags)
{
throw ODB.BadStatus_ParamAcc(bindings[i].ColumnBindingOrdinal, (DBBindStatus) rgStatus[i]);
}
if (2 == flags)
{
throw ODB.BadStatusRowAccessor(bindings[i].ColumnBindingOrdinal, (DBBindStatus) rgStatus[i]);
}
}
}
return result;
}
internal OleDbHResult CreateAccessor(UnsafeNativeMethods.IAccessor iaccessor, int flags, ColumnBinding[] bindings) {
OleDbHResult hr = 0;
int[] rowBindStatus = new int[BindingCount()];
_iaccessor = iaccessor;
Bid.Trace("<oledb.IAccessor.CreateAccessor|API|OLEDB>\n");
hr = iaccessor.CreateAccessor(flags, (IntPtr)rowBindStatus.Length, this, (IntPtr)_dataLength, out _accessorHandle, rowBindStatus); // MDAC 69530
Bid.Trace("<oledb.IAccessor.CreateAccessor|API|OLEDB|RET> %08X{HRESULT}\n", hr);
for (int k = 0; k < rowBindStatus.Length; ++k) {
if (DBBindStatus.OK != (DBBindStatus)rowBindStatus[k]) {
if (ODB.DBACCESSOR_PARAMETERDATA == flags) {
throw ODB.BadStatus_ParamAcc(bindings[k].ColumnBindingOrdinal, (DBBindStatus)rowBindStatus[k]);
}
else if (ODB.DBACCESSOR_ROWDATA == flags) {
throw ODB.BadStatusRowAccessor(bindings[k].ColumnBindingOrdinal, (DBBindStatus)rowBindStatus[k]);
}
else Debug.Assert(false, "unknown accessor buffer");
}
}
return hr;
}
override protected bool ReleaseHandle() {
// NOTE: The SafeHandle class guarantees this will be called exactly once.
_iaccessor = null;
if (_needToReset && _haveData) {
IntPtr buffer = base.handle;
if (IntPtr.Zero != buffer) {
ResetValues(buffer, null);
}
}
return base.ReleaseHandle();
}
internal new void Dispose() {
ResetValues();
UnsafeNativeMethods.IAccessor iaccessor = _iaccessor;
IntPtr accessorHandle = _accessorHandle;
_iaccessor = null;
_accessorHandle = ODB.DB_INVALID_HACCESSOR;
if ((ODB.DB_INVALID_HACCESSOR != accessorHandle) && (null != iaccessor)) {
OleDbHResult hr;
int refcount;
hr = iaccessor.ReleaseAccessor(accessorHandle, out refcount);
if (hr < 0) { // ignore any error msgs
SafeNativeMethods.Wrapper.ClearErrorInfo();
}
}
base.Dispose();
}
internal void CloseFromConnection() {
_iaccessor = null;
_accessorHandle = ODB.DB_INVALID_HACCESSOR;
}
protected override bool ReleaseHandle()
{
this._iaccessor = null;
if (this._needToReset && this._haveData)
{
IntPtr handle = base.handle;
if (IntPtr.Zero != handle)
{
this.ResetValues(handle, null);
}
}
return base.ReleaseHandle();
}
internal void CloseFromConnection()
{
this._iaccessor = null;
this._accessorHandle = ODB.DB_INVALID_HACCESSOR;
}
internal OleDbHResult CreateAccessor(UnsafeNativeMethods.IAccessor iaccessor, int flags)
{
return(this._rowBinding.CreateAccessor(iaccessor, flags, this._columnBindings));
}
internal OleDbHResult CreateAccessor(UnsafeNativeMethods.IAccessor iaccessor, int flags)
{
Debug.Assert(null != _rowBinding, "no row binding");
Debug.Assert(null != _columnBindings, "no column bindings");
return(_rowBinding.CreateAccessor(iaccessor, flags, _columnBindings));
}
internal void Dispose()
{
int num;
this.ResetValues();
UnsafeNativeMethods.IAccessor accessor = this._iaccessor;
IntPtr hAccessor = this._accessorHandle;
this._iaccessor = null;
this._accessorHandle = ODB.DB_INVALID_HACCESSOR;
if (((ODB.DB_INVALID_HACCESSOR != hAccessor) && (accessor != null)) && (accessor.ReleaseAccessor(hAccessor, out num) < OleDbHResult.S_OK))
{
SafeNativeMethods.Wrapper.ClearErrorInfo();
}
base.Dispose();
}
