internal static void Trace(string fmtPrintfW, OciHandle a1, OCI.HTYPE a2, OciHandle a3, int a4, IntPtr a5, int a6)
{
if (((modFlags & ApiGroup.Trace) != ApiGroup.Off) && (modID != NoData))
{
NativeMethods.Trace(modID, UIntPtr.Zero, UIntPtr.Zero, fmtPrintfW, OciHandle.HandleValueToTrace(a1), a2.ToString(), OciHandle.HandleValueToTrace(a3), a4, a5, a6);
}
}
override protected bool ExtraDispose(HandleRef localHandle, OCI.HTYPE handleType)
{
int rc;
if (IntPtr.Zero != _serverHandle.Handle)
{
rc = TracedNativeMethods.OCIServerDetach(
_serverHandle, // srvhp
_errorHandle, // errhp
OCI.MODE.OCI_DEFAULT // mode
);
if (0 != rc)
{
Debug.WriteLine(String.Format("OracleClient: OCIServerDetach(0x{0,-8:x} failed: rc={1:d}", localHandle.Handle, rc));
Debug.Assert(false, "OCIServerDetach failed");
}
rc = TracedNativeMethods.OCIHandleFree(_serverHandle, OCI.HTYPE.OCI_HTYPE_SERVER);
}
if (IntPtr.Zero != _errorHandle.Handle)
{
rc = TracedNativeMethods.OCIHandleFree(_errorHandle, OCI.HTYPE.OCI_HTYPE_ERROR);
}
rc = TracedNativeMethods.OCIHandleFree(localHandle, handleType);
GC.KeepAlive(this);
return(false); // don't bother with the default clean up, we already did it.
}
internal static void Trace(string fmtPrintfW, OciHandle a1, OCI.HTYPE a2, OCI.ATTR a3, OciHandle a4, string a5, uint a6, int a7)
{
if (((modFlags & ApiGroup.Trace) != ApiGroup.Off) && (modID != NoData))
{
NativeMethods.Trace(modID, UIntPtr.Zero, UIntPtr.Zero, fmtPrintfW, OciHandle.HandleValueToTrace(a1), a2.ToString(), OciHandle.GetAttributeName(a1, a3), OciHandle.HandleValueToTrace(a4), a5, a6, a7);
}
}
// Construct from an external handle and type
protected OciHandle(
OciHandle parentOciHandle,
OCI.HTYPE handleType,
IntPtr handle
)
{
if (OCI.HTYPE.OCI_HTYPE_ENV != handleType && null == parentOciHandle)
{
Debug.Assert(false, "non-environment handle must have a parent");
}
else if (OCI.HTYPE.OCI_HTYPE_ENV == handleType && null != parentOciHandle)
{
Debug.Assert(false, "environment handle must not have a parent");
}
_parentOciHandle = parentOciHandle;
_handleType = handleType;
_handle = handle;
if (null != _parentOciHandle)
{
_unicode = parentOciHandle._unicode;
}
else
{
_unicode = false;
}
// Console.WriteLine(String.Format("OracleClient: Wrap handle=0x{0,-8:x} parent=0x{2,-8:x} type={1}", handle, handleType, (null != parentOciHandle ) ? parentOciHandle.Handle : IntPtr.Zero));
}
static internal extern int OCIParamGet
(
HandleRef hndlp,
OCI.HTYPE htype,
HandleRef errhp,
out IntPtr paramdpp, // can't return a handle ref!
int pos
);
static internal extern int OCIDescriptorAlloc
(
HandleRef parenth,
out IntPtr descp, // can't return a handle ref!
OCI.HTYPE type,
int xtramem_sz,
HandleRef usrmempp
);
static internal extern int OCIHandleAlloc
(
HandleRef parenth,
out IntPtr hndlpp, // can't return a handle ref!
OCI.HTYPE type,
int xtramemsz,
HandleRef usrmempp
);
internal static int OCIHandleFree(IntPtr hndlp, OCI.HTYPE type)
{
if (Bid.AdvancedOn)
{
Bid.Trace("<oc.OCIHandleFree|ADV|OCI> hndlp=0x%-07Ix type=%3d\n", hndlp, (int)type);
}
return(System.Data.Common.UnsafeNativeMethods.OCIHandleFree(hndlp, type));
}
static internal extern int OCIAttrGet
(
HandleRef trgthndlp,
OCI.HTYPE trghndltyp,
out IntPtr attributep, // can't return a handle ref!
out int sizep,
OCI.ATTR attrtype,
HandleRef errhp
);
static internal extern int OCIAttrSet
(
HandleRef trgthndlp,
OCI.HTYPE trghndltyp,
ref int attributep,
int size,
OCI.ATTR attrtype,
HandleRef errhp
);
virtual protected bool ExtraDispose(HandleRef localHandle, OCI.HTYPE handleType)
{
// Override this method to perform extra work when the handle is being
// disposed -- don't touch other managed objects, however.
// Return true if you wan't to force the handle to be freed, false if you've
// already handled it.
return(true);
}
static internal extern int OCIAttrGet
(
HandleRef trgthndlp,
OCI.HTYPE trghndltyp,
out short attributep,
out int sizep,
OCI.ATTR attrtype,
HandleRef errhp
);
// Construct from an external handle and type
protected OciHandle(
OciHandle parentOciHandle,
OCI.HTYPE handleType,
IntPtr handle,
bool unicode
) : this(parentOciHandle, handleType, handle)
{
_unicode = unicode;
}
static internal extern int OCIAttrSet
(
HandleRef trgthndlp,
OCI.HTYPE trghndltyp,
[In, MarshalAs(UnmanagedType.LPArray)]
byte[] attributep,
int size,
OCI.ATTR attrtype,
HandleRef errhp
);
internal static int OCIParamGet(OciHandle hndlp, OCI.HTYPE hType, OciHandle errhp, out IntPtr paramdpp, int pos)
{
int num = System.Data.Common.UnsafeNativeMethods.OCIParamGet(hndlp, hType, errhp, out paramdpp, (uint)pos);
if (Bid.AdvancedOn)
{
Bid.Trace("<oc.OCIParamGet|ADV|OCI|RET> hndlp=0x%-07Ix htype=%-18ls errhp=0x%-07Ix pos=%d paramdpp=0x%-07Ix rc=%d\n", hndlp, hType, errhp, pos, paramdpp, num);
}
return(num);
}
internal static int OCIHandleAlloc(OciHandle parenth, out IntPtr hndlpp, OCI.HTYPE type)
{
int num = System.Data.Common.UnsafeNativeMethods.OCIHandleAlloc(parenth, out hndlpp, type, IntPtr.Zero, IntPtr.Zero);
if (Bid.AdvancedOn)
{
Bid.Trace("<oc.OCIHandleAlloc|ADV|OCI|RET> parenth=0x%-07Ix type=%3d xtramemsz=0x%-07Ix usrmempp=0x%-07Ix hndlpp=0x%-07Ix rc=%d\n", parenth, (int)type, IntPtr.Zero, IntPtr.Zero, hndlpp, num);
}
return(num);
}
static internal extern int OCIErrorGet
(
HandleRef hndlp,
int recordno,
HandleRef sqlstate,
out int errcodep,
HandleRef bufp,
int bufsiz,
OCI.HTYPE type
);
static internal OciHandle GetHandle(OCI.HTYPE handleType)
{
OracleConnection.OraclePermission.Demand();
if (!isInitialized)
{
Initialize();
}
if (OCI.HTYPE.OCI_HTYPE_ERROR == handleType)
{
return(availableErrorHandle); // TODO: we probably have thread-safety issues here; can we get some thread affinity?
}
return(environmentHandle.CreateOciHandle(handleType));
}
// Construct by allocating a new handle as a child of the specified parent handle
protected OciHandle(
OciHandle parentOciHandle,
OCI.HTYPE handleType
)
{
int rc;
_parentOciHandle = parentOciHandle;
_handleType = handleType;
_unicode = parentOciHandle._unicode;
if (_handleType < OCI.HTYPE.OCI_DTYPE_FIRST)
{
rc = TracedNativeMethods.OCIHandleAlloc(
parentOciHandle,
out _handle,
_handleType,
0,
ADP.NullHandleRef);
}
else
{
rc = TracedNativeMethods.OCIDescriptorAlloc(
parentOciHandle,
out _handle,
_handleType,
0,
ADP.NullHandleRef);
}
if (0 != rc || IntPtr.Zero == _handle)
{
throw ADP.OperationFailed("OCIDescriptorAllocate", rc);
}
// Console.WriteLine(String.Format("OracleClient: Allocate handle=0x{0,-8:x} parent=0x{2,-8:x} type={1}", _handle, _handleType, (null != parentOciHandle ) ? parentOciHandle.Handle : IntPtr.Zero));
}
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
//
// Methods
//
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
internal OciHandle CreateOciHandle(
OCI.HTYPE handleType
)
{
// Constructs a new handle of the type requested, with this handle
// as it's parent. Basically, creates a new handle using the
// constructor that does all the work.
switch (handleType)
{
case OCI.HTYPE.OCI_HTYPE_ERROR: return(new OciErrorHandle(this));
case OCI.HTYPE.OCI_HTYPE_SERVER: return(new OciServerHandle(this));
case OCI.HTYPE.OCI_HTYPE_SVCCTX: return(new OciServiceContextHandle(this));
case OCI.HTYPE.OCI_HTYPE_SESSION: return(new OciSessionHandle(this));
case OCI.HTYPE.OCI_HTYPE_STMT: return(new OciStatementHandle(this));
default:
Debug.Assert(false, "Unexpected OCI Handle Type requested:" + handleType.ToString("G"));
return(null);
}
}
internal int Release()
{
int num2;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
}
finally
{
int num;
num2 = Interlocked.Decrement(ref this._refCount);
if (num2 != 0)
{
goto Label_0168;
}
IntPtr hndlp = Interlocked.CompareExchange(ref this.handle, IntPtr.Zero, base.handle);
if (!(IntPtr.Zero != hndlp))
{
goto Label_0168;
}
OCI.HTYPE handleType = this.HandleType;
OciHandle parentHandle = this.ParentHandle;
switch (handleType)
{
case OCI.HTYPE.OCI_HTYPE_ENV:
num = TracedNativeMethods.OCIHandleFree(hndlp, handleType);
if (num != 0)
{
throw System.Data.Common.ADP.OperationFailed("OCIHandleFree", num);
}
goto Label_015E;
case OCI.HTYPE.OCI_HTYPE_ERROR:
case OCI.HTYPE.OCI_HTYPE_STMT:
case OCI.HTYPE.OCI_HTYPE_SESSION:
break;
case OCI.HTYPE.OCI_HTYPE_SVCCTX:
{
OciHandle handle2 = parentHandle;
if (handle2 != null)
{
OciHandle handle4 = handle2.ParentHandle;
if (handle4 != null)
{
OciHandle handle3 = handle4.ParentHandle;
if (handle3 != null)
{
num = TracedNativeMethods.OCISessionEnd(hndlp, handle3.DangerousGetHandle(), handle2.DangerousGetHandle(), OCI.MODE.OCI_DEFAULT);
}
}
}
break;
}
case OCI.HTYPE.OCI_HTYPE_SERVER:
TracedNativeMethods.OCIServerDetach(hndlp, parentHandle.DangerousGetHandle(), OCI.MODE.OCI_DEFAULT);
break;
case OCI.HTYPE.OCI_DTYPE_FIRST:
case OCI.HTYPE.OCI_DTYPE_ROWID:
case OCI.HTYPE.OCI_DTYPE_FILE:
case OCI.HTYPE.OCI_DTYPE_INTERVAL_DS:
case OCI.HTYPE.OCI_DTYPE_TIMESTAMP:
case OCI.HTYPE.OCI_DTYPE_TIMESTAMP_TZ:
case OCI.HTYPE.OCI_DTYPE_TIMESTAMP_LTZ:
num = TracedNativeMethods.OCIDescriptorFree(hndlp, handleType);
if (num != 0)
{
throw System.Data.Common.ADP.OperationFailed("OCIDescriptorFree", num);
}
goto Label_015E;
default:
goto Label_015E;
}
num = TracedNativeMethods.OCIHandleFree(hndlp, handleType);
if (num != 0)
{
throw System.Data.Common.ADP.OperationFailed("OCIHandleFree", num);
}
Label_015E:
if (parentHandle != null)
{
parentHandle.Release();
}
Label_0168 :;
}
return(num2);
}
protected OciHandle(OciHandle parentHandle, OCI.HTYPE handleType) : this(parentHandle, handleType, OCI.MODE.OCI_DEFAULT, HANDLEFLAG.DEFAULT)
{
}
protected OciHandle(OciHandle parentHandle, OCI.HTYPE handleType, OCI.MODE ocimode, HANDLEFLAG handleflags) : this()
{
RuntimeHelpers.PrepareConstrainedRegions();
try
{
}
finally
{
int num;
this._handleType = handleType;
this._parentHandle = parentHandle;
this._refCount = 1;
switch (handleType)
{
case OCI.HTYPE.OCI_DTYPE_TIMESTAMP:
case OCI.HTYPE.OCI_DTYPE_TIMESTAMP_TZ:
case OCI.HTYPE.OCI_DTYPE_TIMESTAMP_LTZ:
case OCI.HTYPE.OCI_DTYPE_INTERVAL_DS:
case OCI.HTYPE.OCI_DTYPE_FIRST:
case OCI.HTYPE.OCI_DTYPE_ROWID:
case OCI.HTYPE.OCI_DTYPE_FILE:
num = TracedNativeMethods.OCIDescriptorAlloc(parentHandle.EnvironmentHandle, out this.handle, handleType);
if ((num != 0) || (IntPtr.Zero == base.handle))
{
throw System.Data.Common.ADP.OperationFailed("OCIDescriptorAlloc", num);
}
break;
case OCI.HTYPE.OCI_HTYPE_ENV:
if ((handleflags & HANDLEFLAG.NLS) != HANDLEFLAG.NLS)
{
num = TracedNativeMethods.OCIEnvCreate(out this.handle, ocimode);
if ((num != 0) || (IntPtr.Zero == base.handle))
{
throw System.Data.Common.ADP.OperationFailed("OCIEnvCreate", num);
}
}
else
{
num = TracedNativeMethods.OCIEnvNlsCreate(out this.handle, ocimode, 0, 0);
if ((num != 0) || (IntPtr.Zero == base.handle))
{
throw System.Data.Common.ADP.OperationFailed("OCIEnvNlsCreate", num);
}
}
break;
case OCI.HTYPE.OCI_HTYPE_ERROR:
case OCI.HTYPE.OCI_HTYPE_SVCCTX:
case OCI.HTYPE.OCI_HTYPE_STMT:
case OCI.HTYPE.OCI_HTYPE_SERVER:
case OCI.HTYPE.OCI_HTYPE_SESSION:
num = TracedNativeMethods.OCIHandleAlloc(parentHandle.EnvironmentHandle, out this.handle, handleType);
if ((num != 0) || (IntPtr.Zero == base.handle))
{
throw System.Data.Common.ADP.OperationFailed("OCIHandleAlloc", num);
}
break;
}
if (parentHandle != null)
{
parentHandle.AddRef();
this._isUnicode = parentHandle.IsUnicode;
}
else
{
this._isUnicode = (handleflags & HANDLEFLAG.UNICODE) == HANDLEFLAG.UNICODE;
}
}
}
internal static extern int OCIDescriptorAlloc(OciHandle parenth, out IntPtr descp, [In, MarshalAs(UnmanagedType.U4)] OCI.HTYPE type, IntPtr xtramem_sz, IntPtr usrmempp);
protected OciHandle(OCI.HTYPE handleType) : base(IntPtr.Zero, false)
{
this._handleType = handleType;
}
internal static extern int OCIDescriptorFree(IntPtr hndlp, [In, MarshalAs(UnmanagedType.U4)] OCI.HTYPE type);
internal static extern int OCIErrorGet(OciHandle hndlp, uint recordno, IntPtr sqlstate, out int errcodep, NativeBuffer bufp, uint bufsiz, [In, MarshalAs(UnmanagedType.U4)] OCI.HTYPE type);
static internal extern int OCIHandleFree
(
HandleRef hndlp,
OCI.HTYPE type
);
internal static extern int OCIHandleAlloc(OciHandle parenth, out IntPtr hndlpp, [In, MarshalAs(UnmanagedType.U4)] OCI.HTYPE type, IntPtr xtramemsz, IntPtr usrmempp);
static internal extern int OCIDescriptorFree
(
HandleRef hndlp,
OCI.HTYPE type
);
