| private DangerousAddRef ( bool &success ) : void | ||
| success | bool | |
| Результат | void | |
internal void SetParent(SafeHandle parent)
{
bool addedRef = false;
parent.DangerousAddRef(ref addedRef);
Debug.Assert(addedRef);
_parent = parent;
}
internal void TransferOwnershipToParent(SafeHandle parent)
{
Debug.Assert(_parent == null, "Expected no existing parent");
Debug.Assert(parent != null && !parent.IsInvalid, "Expected new parent to be non-null and valid");
bool addedRef = false;
parent.DangerousAddRef(ref addedRef);
_parent = parent;
}
internal SafeProvOrNCryptKeyHandleUwp(IntPtr handle, SafeHandle parentHandle)
: this(handle, true, true)
{
Debug.Assert(parentHandle != null && !parentHandle.IsClosed && !parentHandle.IsInvalid);
// If the provided handle value wasn't valid we won't call dispose, so we shouldn't be doing this.
Debug.Assert(!IsInvalid);
bool addedRef = false;
parentHandle.DangerousAddRef(ref addedRef);
_parentHandle = parentHandle;
}
public static ArbitraryWaitHandle FromSafeHandle(SafeHandle safeHandle) {
Contract.Requires(safeHandle != null);
Boolean success = false;
try {
safeHandle.DangerousAddRef(ref success);
if (!success) throw new InvalidOperationException("Couldn't AddRef");
return new ArbitraryWaitHandle(safeHandle.DangerousGetHandle());
}
finally {
safeHandle.DangerousRelease();
}
}
internal SafePipeHandle(Socket namedPipeSocket) : base(ownsHandle: true)
{
Debug.Assert(namedPipeSocket != null);
_namedPipeSocket = namedPipeSocket;
// TODO: Issue https://github.com/dotnet/corefx/issues/6807
// This is unfortunately the only way of getting at the Socket's file descriptor right now, until #6807 is implemented.
PropertyInfo safeHandleProperty = s_safeHandleProperty ?? (s_safeHandleProperty = typeof(Socket).GetTypeInfo().GetDeclaredProperty("SafeHandle"));
Debug.Assert(safeHandleProperty != null, "Socket.SafeHandle could not be found.");
_namedPipeSocketHandle = (SafeHandle)safeHandleProperty?.GetValue(namedPipeSocket, null);
bool ignored = false;
_namedPipeSocketHandle.DangerousAddRef(ref ignored);
SetHandle(_namedPipeSocketHandle.DangerousGetHandle());
}
public static bool DuplicateHandle(HandleRef hSourceProcessHandle, SafeHandle hSourceHandle, HandleRef hTargetProcess,
out SafeWaitHandle targetHandle, int dwDesiredAccess, bool bInheritHandle, int dwOptions)
{
bool release = false;
try {
hSourceHandle.DangerousAddRef (ref release);
MonoIOError error;
IntPtr nakedTargetHandle;
bool ret = MonoIO.DuplicateHandle (hSourceProcessHandle.Handle, hSourceHandle.DangerousGetHandle (), hTargetProcess.Handle,
out nakedTargetHandle, dwDesiredAccess, bInheritHandle ? 1 : 0, dwOptions, out error);
if (error != MonoIOError.ERROR_SUCCESS)
throw MonoIO.GetException (error);
targetHandle = new SafeWaitHandle (nakedTargetHandle, true);
return ret;
} finally {
if (release)
hSourceHandle.DangerousRelease ();
}
}
private static IEnumerable<RecipientInfo> ToRecipientInfosForThisIndex(SafeHandle pCmsgCmsRecipientInfoMemory, int index)
{
bool mustRelease = false;
pCmsgCmsRecipientInfoMemory.DangerousAddRef(ref mustRelease);
try
{
unsafe
{
CMSG_CMS_RECIPIENT_INFO* pCMsgCmsRecipientInfo = (CMSG_CMS_RECIPIENT_INFO*)(pCmsgCmsRecipientInfoMemory.DangerousGetHandle());
switch (pCMsgCmsRecipientInfo->dwRecipientChoice)
{
case CMsgCmsRecipientChoice.CMSG_KEY_TRANS_RECIPIENT:
return new KeyTransRecipientInfo[] { new KeyTransRecipientInfo(new KeyTransRecipientInfoPalWindows(pCmsgCmsRecipientInfoMemory, index)) };
case CMsgCmsRecipientChoice.CMSG_KEY_AGREE_RECIPIENT:
{
CMSG_KEY_AGREE_RECIPIENT_INFO* pCmsKeyAgreeRecipientInfo = pCMsgCmsRecipientInfo->KeyAgree;
int numKeys = pCmsKeyAgreeRecipientInfo->cRecipientEncryptedKeys;
KeyAgreeRecipientInfo[] recipients = new KeyAgreeRecipientInfo[numKeys];
for (int subIndex = 0; subIndex < numKeys; subIndex++)
{
recipients[subIndex] = new KeyAgreeRecipientInfo(new KeyAgreeRecipientInfoPalWindows(pCmsgCmsRecipientInfoMemory, index, subIndex));
}
return recipients;
}
default:
throw ErrorCode.E_NOTIMPL.ToCryptographicException();
}
}
}
finally
{
if (mustRelease)
{
pCmsgCmsRecipientInfoMemory.DangerousRelease();
}
}
}
public static bool BindHandle(SafeHandle osHandle)
{
if (osHandle == null)
{
throw new ArgumentNullException("osHandle");
}
bool flag = false;
bool success = false;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
osHandle.DangerousAddRef(ref success);
flag = BindIOCompletionCallbackNative(osHandle.DangerousGetHandle());
}
finally
{
if (success)
{
osHandle.DangerousRelease();
}
}
return flag;
}
public static void Unlock (SafeHandle safeHandle,
long position, long length,
out MonoIOError error)
{
bool release = false;
try {
safeHandle.DangerousAddRef (ref release);
Unlock (safeHandle.DangerousGetHandle (), position, length, out error);
} finally {
if (release)
safeHandle.DangerousRelease ();
}
}
public static bool SetFileTime (SafeHandle safeHandle,
long creation_time,
long last_access_time,
long last_write_time,
out MonoIOError error)
{
bool release = false;
try {
safeHandle.DangerousAddRef (ref release);
return SetFileTime (safeHandle.DangerousGetHandle (), creation_time, last_access_time, last_write_time, out error);
} finally {
if (release)
safeHandle.DangerousRelease ();
}
}
public static bool SetLength (SafeHandle safeHandle,
long length,
out MonoIOError error)
{
bool release = false;
try {
safeHandle.DangerousAddRef (ref release);
return SetLength (safeHandle.DangerousGetHandle (), length, out error);
} finally {
if (release)
safeHandle.DangerousRelease ();
}
}
public static bool Flush (SafeHandle safeHandle,
out MonoIOError error)
{
bool release = false;
try {
safeHandle.DangerousAddRef (ref release);
return Flush (safeHandle.DangerousGetHandle (), out error);
} finally {
if (release)
safeHandle.DangerousRelease ();
}
}
public static long Seek (SafeHandle safeHandle, long offset,
SeekOrigin origin,
out MonoIOError error)
{
bool release = false;
try {
safeHandle.DangerousAddRef (ref release);
return Seek (safeHandle.DangerousGetHandle (), offset, origin, out error);
} finally {
if (release)
safeHandle.DangerousRelease ();
}
}
[System.Security.SecurityCritical] // auto-generated
static internal IntPtr SafeHandleAddRef(SafeHandle pHandle, ref bool success)
{
if (pHandle == null)
{
throw new ArgumentNullException(Environment.GetResourceString("ArgumentNull_SafeHandle"));
}
Contract.EndContractBlock();
pHandle.DangerousAddRef(ref success);
return (success ? pHandle.DangerousGetHandle() : IntPtr.Zero);
}
static int WaitOneNative (SafeHandle waitableSafeHandle, uint millisecondsTimeout, bool hasThreadAffinity, bool exitContext)
{
bool release = false;
try {
#if !DISABLE_REMOTING
if (exitContext)
SynchronizationAttribute.ExitContext ();
#endif
waitableSafeHandle.DangerousAddRef (ref release);
return WaitOne_internal (waitableSafeHandle.DangerousGetHandle (), (int) millisecondsTimeout);
} finally {
if (release)
waitableSafeHandle.DangerousRelease ();
#if !DISABLE_REMOTING
if (exitContext)
SynchronizationAttribute.EnterContext ();
#endif
}
}
public static bool BindHandle(SafeHandle osHandle)
{
if (osHandle == null)
throw new ArgumentNullException("osHandle");
bool ret = false;
bool mustReleaseSafeHandle = false;
RuntimeHelpers.PrepareConstrainedRegions();
try {
osHandle.DangerousAddRef(ref mustReleaseSafeHandle);
ret = BindIOCompletionCallbackNative(osHandle.DangerousGetHandle());
}
finally {
if (mustReleaseSafeHandle)
osHandle.DangerousRelease();
}
return ret;
}
internal static IntPtr SafeHandleAddRef(SafeHandle pHandle, ref bool success)
{
if (pHandle == null)
{
throw new ArgumentNullException(Environment.GetResourceString("ArgumentNull_SafeHandle"));
}
pHandle.DangerousAddRef(ref success);
if (!success)
{
return IntPtr.Zero;
}
return pHandle.DangerousGetHandle();
}
public static int Read (SafeHandle safeHandle, byte [] dest,
int dest_offset, int count,
out MonoIOError error)
{
bool release = false;
try {
safeHandle.DangerousAddRef (ref release);
return Read (safeHandle.DangerousGetHandle (), dest, dest_offset, count, out error);
} finally {
if (release)
safeHandle.DangerousRelease ();
}
}
public static int Write (SafeHandle safeHandle, byte [] src,
int src_offset, int count,
out MonoIOError error)
{
bool release = false;
try {
safeHandle.DangerousAddRef (ref release);
return Write (safeHandle.DangerousGetHandle (), src, src_offset, count, out error);
} finally {
if (release)
safeHandle.DangerousRelease ();
}
}
internal void Bind(OciStatementHandle statementHandle, NativeBuffer parameterBuffer, OracleConnection connection, ref bool mustRelease, ref SafeHandle handleToBind)
{
if (IsDirection(this.Parameter, ParameterDirection.Output) || (this.Parameter.Value != null))
{
int num2;
IntPtr ptr2;
string parameterName = this.Parameter.ParameterName;
OciErrorHandle errorHandle = connection.ErrorHandle;
OciServiceContextHandle serviceContextHandle = connection.ServiceContextHandle;
int num = 0;
OCI.INDICATOR oK = OCI.INDICATOR.OK;
OCI.DATATYPE ociType = this._bindingMetaType.OciType;
IntPtr dataPtr = parameterBuffer.DangerousGetDataPtr(this._indicatorOffset);
IntPtr alenp = parameterBuffer.DangerousGetDataPtr(this._lengthOffset);
IntPtr valuep = parameterBuffer.DangerousGetDataPtr(this._valueOffset);
OciHandle.SafeDispose(ref this._dateTimeDescriptor);
if (IsDirection(this.Parameter, ParameterDirection.Input))
{
if (System.Data.Common.ADP.IsNull(this._coercedValue))
{
oK = OCI.INDICATOR.ISNULL;
switch (ociType)
{
case OCI.DATATYPE.INT_TIMESTAMP:
case OCI.DATATYPE.INT_TIMESTAMP_TZ:
case OCI.DATATYPE.INT_TIMESTAMP_LTZ:
this._dateTimeDescriptor = OracleDateTime.CreateEmptyDescriptor(ociType, connection);
handleToBind = this._dateTimeDescriptor;
break;
}
}
else
{
num = this.PutOracleValue(this._coercedValue, parameterBuffer, this._valueOffset, this._bindingMetaType, connection, ref handleToBind);
}
}
else
{
if (this._bindingMetaType.IsVariableLength)
{
num = 0;
}
else
{
num = this._bufferLength;
}
OciLobLocator.SafeDispose(ref this._locator);
OciHandle.SafeDispose(ref this._descriptor);
switch (ociType)
{
case OCI.DATATYPE.CLOB:
case OCI.DATATYPE.BLOB:
case OCI.DATATYPE.BFILE:
this._locator = new OciLobLocator(connection, this._bindingMetaType.OracleType);
handleToBind = this._locator.Descriptor;
break;
case OCI.DATATYPE.RSET:
this._descriptor = new OciStatementHandle(serviceContextHandle);
handleToBind = this._descriptor;
break;
case OCI.DATATYPE.INT_TIMESTAMP:
case OCI.DATATYPE.INT_TIMESTAMP_TZ:
case OCI.DATATYPE.INT_TIMESTAMP_LTZ:
this._dateTimeDescriptor = OracleDateTime.CreateEmptyDescriptor(ociType, connection);
handleToBind = this._dateTimeDescriptor;
break;
}
}
if (handleToBind != null)
{
handleToBind.DangerousAddRef(ref mustRelease);
parameterBuffer.WriteIntPtr(this._valueOffset, handleToBind.DangerousGetHandle());
}
parameterBuffer.WriteInt16(this._indicatorOffset, (short) oK);
if ((OCI.DATATYPE.LONGVARCHAR == ociType) || (OCI.DATATYPE.LONGVARRAW == ociType))
{
alenp = IntPtr.Zero;
}
else if (this._bindAsUCS2)
{
parameterBuffer.WriteInt32(this._lengthOffset, num / System.Data.Common.ADP.CharSize);
}
else
{
parameterBuffer.WriteInt32(this._lengthOffset, num);
}
if (IsDirection(this.Parameter, ParameterDirection.Output))
{
num2 = this._bufferLength;
}
else
{
num2 = num;
}
OCI.DATATYPE dty = ociType;
switch (ociType)
{
case OCI.DATATYPE.INT_TIMESTAMP:
dty = OCI.DATATYPE.TIMESTAMP;
break;
case OCI.DATATYPE.INT_TIMESTAMP_TZ:
dty = OCI.DATATYPE.TIMESTAMP_TZ;
break;
case OCI.DATATYPE.INT_TIMESTAMP_LTZ:
dty = OCI.DATATYPE.TIMESTAMP_LTZ;
break;
}
int rc = TracedNativeMethods.OCIBindByName(statementHandle, out ptr2, errorHandle, parameterName, parameterName.Length, valuep, num2, dty, dataPtr, alenp, OCI.MODE.OCI_DEFAULT);
if (rc != 0)
{
this._command.Connection.CheckError(errorHandle, rc);
}
this._bindHandle = new OciBindHandle(statementHandle, ptr2);
if (this._bindingMetaType.IsCharacterType)
{
if (OCI.ClientVersionAtLeastOracle9i && IsDirection(this.Parameter, ParameterDirection.Output))
{
this._bindHandle.SetAttribute(OCI.ATTR.OCI_ATTR_MAXCHAR_SIZE, this._bindSize, errorHandle);
}
if ((num2 > (this._bindingMetaType.MaxBindSize / System.Data.Common.ADP.CharSize)) || (!OCI.ClientVersionAtLeastOracle9i && this._bindingMetaType.UsesNationalCharacterSet))
{
this._bindHandle.SetAttribute(OCI.ATTR.OCI_ATTR_MAXDATA_SIZE, this._bindingMetaType.MaxBindSize, errorHandle);
}
if (this._bindingMetaType.UsesNationalCharacterSet)
{
this._bindHandle.SetAttribute(OCI.ATTR.OCI_ATTR_CHARSET_FORM, 2, errorHandle);
}
if (this._bindAsUCS2)
{
this._bindHandle.SetAttribute(OCI.ATTR.OCI_ATTR_CHARSET_ID, 0x3e8, errorHandle);
}
}
GC.KeepAlive(parameterBuffer);
}
}
static int WaitOneNative (SafeHandle waitableSafeHandle, uint millisecondsTimeout, bool hasThreadAffinity, bool exitContext)
{
#if MONOTOUCH
if (exitContext)
throw new NotSupportedException ("exitContext == true is not supported");
#endif
bool release = false;
try {
if (exitContext)
SynchronizationAttribute.ExitContext ();
waitableSafeHandle.DangerousAddRef (ref release);
return WaitOne_internal (waitableSafeHandle.DangerousGetHandle (), (int) millisecondsTimeout, exitContext);
} finally {
if (release)
waitableSafeHandle.DangerousRelease ();
if (exitContext)
SynchronizationAttribute.EnterContext ();
}
}