Security Scol plugin
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Data structure used to store messages. More...
#include <mqueue.h>
Public Member Functions | |
MessageQueue (unsigned int nodeSize=256) | |
Construct a MessageQueue. | |
void | IsolatedInitialize (const NameValuePairs ¶meters) |
Initialize or reinitialize this object, without signal propagation. | |
size_t | Put2 (const byte *begin, size_t length, int messageEnd, bool blocking) |
Input multiple bytes for processing. | |
bool | IsolatedFlush (bool hardFlush, bool blocking) |
Flushes data buffered by this object, without signal propagation. | |
bool | IsolatedMessageSeriesEnd (bool blocking) |
Marks the end of a series of messages, without signal propagation. | |
lword | MaxRetrievable () const |
Provides the number of bytes ready for retrieval. | |
bool | AnyRetrievable () const |
Determines whether bytes are ready for retrieval. | |
size_t | TransferTo2 (BufferedTransformation &target, lword &transferBytes, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true) |
Transfer bytes from this object to another BufferedTransformation. | |
size_t | CopyRangeTo2 (BufferedTransformation &target, lword &begin, lword end=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true) const |
Copy bytes from this object to another BufferedTransformation. | |
lword | TotalBytesRetrievable () const |
Provides the number of bytes ready for retrieval. | |
unsigned int | NumberOfMessages () const |
Provides the number of meesages processed by this object. | |
bool | GetNextMessage () |
Start retrieving the next message. | |
unsigned int | NumberOfMessagesInThisSeries () const |
Provides the number of messages in a series. | |
unsigned int | NumberOfMessageSeries () const |
Provides the number of messages in a series. | |
unsigned int | CopyMessagesTo (BufferedTransformation &target, unsigned int count=UINT_MAX, const std::string &channel=DEFAULT_CHANNEL) const |
Copy messages from this object to another BufferedTransformation. | |
const byte * | Spy (size_t &contiguousSize) const |
Peek data in the queue. | |
void | swap (MessageQueue &rhs) |
Swap contents with another MessageQueue. | |
Public Member Functions inherited from AutoSignaling< BufferedTransformation > | |
AutoSignaling (int propagation=-1) | |
Construct an AutoSignaling. | |
void | SetAutoSignalPropagation (int propagation) |
Set propagation of automatically generated and transferred signals. | |
int | GetAutoSignalPropagation () const |
Retrieve automatic signal propagation value. | |
Public Member Functions inherited from BufferedTransformation | |
BufferedTransformation () | |
Construct a BufferedTransformation. | |
BufferedTransformation & | Ref () |
Provides a reference to this object. | |
virtual bool | Attachable () |
Determines whether the object allows attachment. | |
virtual BufferedTransformation * | AttachedTransformation () |
Returns the object immediately attached to this object. | |
virtual const BufferedTransformation * | AttachedTransformation () const |
Returns the object immediately attached to this object. | |
virtual void | Detach (BufferedTransformation *newAttachment=NULLPTR) |
Delete the current attachment chain and attach a new one. | |
virtual void | Attach (BufferedTransformation *newAttachment) |
Add newAttachment to the end of attachment chain. | |
size_t | Put (byte inByte, bool blocking=true) |
Input a byte for processing. | |
size_t | Put (const byte *inString, size_t length, bool blocking=true) |
Input a byte buffer for processing. | |
size_t | PutWord16 (word16 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true) |
size_t | PutWord32 (word32 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true) |
size_t | PutWord64 (word64 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true) |
virtual byte * | CreatePutSpace (size_t &size) |
Request space which can be written into by the caller. | |
virtual bool | CanModifyInput () const |
Determines whether input can be modified by the callee. | |
size_t | PutModifiable (byte *inString, size_t length, bool blocking=true) |
Input multiple bytes that may be modified by callee. | |
bool | MessageEnd (int propagation=-1, bool blocking=true) |
Signals the end of messages to the object. | |
size_t | PutMessageEnd (const byte *inString, size_t length, int propagation=-1, bool blocking=true) |
Input multiple bytes for processing and signal the end of a message. | |
virtual size_t | PutModifiable2 (byte *inString, size_t length, int messageEnd, bool blocking) |
Input multiple bytes that may be modified by callee. | |
unsigned int | GetMaxWaitObjectCount () const |
Retrieves the maximum number of waitable objects. | |
void | GetWaitObjects (WaitObjectContainer &container, CallStack const &callStack) |
Retrieves waitable objects. | |
virtual void | Initialize (const NameValuePairs ¶meters=g_nullNameValuePairs, int propagation=-1) |
Initialize or reinitialize this object, with signal propagation. | |
virtual bool | Flush (bool hardFlush, int propagation=-1, bool blocking=true) |
Flush buffered input and/or output, with signal propagation. | |
virtual bool | MessageSeriesEnd (int propagation=-1, bool blocking=true) |
Marks the end of a series of messages, with signal propagation. | |
virtual size_t | Get (byte &outByte) |
Retrieve a 8-bit byte. | |
virtual size_t | Get (byte *outString, size_t getMax) |
Retrieve a block of bytes. | |
virtual size_t | Peek (byte &outByte) const |
Peek a 8-bit byte. | |
virtual size_t | Peek (byte *outString, size_t peekMax) const |
Peek a block of bytes. | |
size_t | GetWord16 (word16 &value, ByteOrder order=BIG_ENDIAN_ORDER) |
Retrieve a 16-bit word. | |
size_t | GetWord32 (word32 &value, ByteOrder order=BIG_ENDIAN_ORDER) |
Retrieve a 32-bit word. | |
size_t | GetWord64 (word64 &value, ByteOrder order=BIG_ENDIAN_ORDER) |
Retrieve a 64-bit word. | |
size_t | PeekWord16 (word16 &value, ByteOrder order=BIG_ENDIAN_ORDER) const |
Peek a 16-bit word. | |
size_t | PeekWord32 (word32 &value, ByteOrder order=BIG_ENDIAN_ORDER) const |
Peek a 32-bit word. | |
size_t | PeekWord64 (word64 &value, ByteOrder order=BIG_ENDIAN_ORDER) const |
Peek a 64-bit word. | |
lword | TransferTo (BufferedTransformation &target, lword transferMax=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL) |
move transferMax bytes of the buffered output to target as input | |
virtual lword | Skip (lword skipMax=LWORD_MAX) |
Discard skipMax bytes from the output buffer. | |
lword | CopyTo (BufferedTransformation &target, lword copyMax=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL) const |
Copy bytes from this object to another BufferedTransformation. | |
lword | CopyRangeTo (BufferedTransformation &target, lword position, lword copyMax=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL) const |
Copy bytes from this object using an index to another BufferedTransformation. | |
virtual bool | AnyMessages () const |
Determines if any messages are available for retrieval. | |
virtual unsigned int | SkipMessages (unsigned int count=UINT_MAX) |
Skip a number of meessages. | |
unsigned int | TransferMessagesTo (BufferedTransformation &target, unsigned int count=UINT_MAX, const std::string &channel=DEFAULT_CHANNEL) |
Transfer messages from this object to another BufferedTransformation. | |
unsigned int | CopyMessagesTo (BufferedTransformation &target, unsigned int count=UINT_MAX, const std::string &channel=DEFAULT_CHANNEL) const |
Copy messages from this object to another BufferedTransformation. | |
virtual void | SkipAll () |
Skip all messages in the series. | |
void | TransferAllTo (BufferedTransformation &target, const std::string &channel=DEFAULT_CHANNEL) |
Transfer all bytes from this object to another BufferedTransformation. | |
void | CopyAllTo (BufferedTransformation &target, const std::string &channel=DEFAULT_CHANNEL) const |
Copy messages from this object to another BufferedTransformation. | |
virtual bool | GetNextMessageSeries () |
Retrieve the next message in a series. | |
size_t | TransferMessagesTo2 (BufferedTransformation &target, unsigned int &messageCount, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true) |
Transfer messages from this object to another BufferedTransformation. | |
size_t | TransferAllTo2 (BufferedTransformation &target, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true) |
Transfer all bytes from this object to another BufferedTransformation. | |
size_t | ChannelPut (const std::string &channel, byte inByte, bool blocking=true) |
Input a byte for processing on a channel. | |
size_t | ChannelPut (const std::string &channel, const byte *inString, size_t length, bool blocking=true) |
Input a byte buffer for processing on a channel. | |
size_t | ChannelPutModifiable (const std::string &channel, byte *inString, size_t length, bool blocking=true) |
Input multiple bytes that may be modified by callee on a channel. | |
size_t | ChannelPutWord16 (const std::string &channel, word16 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true) |
Input a 16-bit word for processing on a channel. | |
size_t | ChannelPutWord32 (const std::string &channel, word32 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true) |
Input a 32-bit word for processing on a channel. | |
size_t | ChannelPutWord64 (const std::string &channel, word64 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true) |
Input a 64-bit word for processing on a channel. | |
bool | ChannelMessageEnd (const std::string &channel, int propagation=-1, bool blocking=true) |
Signal the end of a message. | |
size_t | ChannelPutMessageEnd (const std::string &channel, const byte *inString, size_t length, int propagation=-1, bool blocking=true) |
Input multiple bytes for processing and signal the end of a message. | |
virtual byte * | ChannelCreatePutSpace (const std::string &channel, size_t &size) |
Request space which can be written into by the caller. | |
virtual size_t | ChannelPut2 (const std::string &channel, const byte *inString, size_t length, int messageEnd, bool blocking) |
Input multiple bytes for processing on a channel. | |
virtual size_t | ChannelPutModifiable2 (const std::string &channel, byte *inString, size_t length, int messageEnd, bool blocking) |
Input multiple bytes that may be modified by callee on a channel. | |
virtual bool | ChannelFlush (const std::string &channel, bool hardFlush, int propagation=-1, bool blocking=true) |
Flush buffered input and/or output on a channel. | |
virtual bool | ChannelMessageSeriesEnd (const std::string &channel, int propagation=-1, bool blocking=true) |
Marks the end of a series of messages on a channel. | |
virtual void | SetRetrievalChannel (const std::string &channel) |
Sets the default retrieval channel. | |
Public Member Functions inherited from Algorithm | |
Algorithm (bool checkSelfTestStatus=true) | |
Interface for all crypto algorithms. | |
virtual std::string | AlgorithmName () const |
Provides the name of this algorithm. | |
virtual std::string | AlgorithmProvider () const |
Retrieve the provider of this algorithm. | |
Public Member Functions inherited from Clonable | |
virtual Clonable * | Clone () const |
Copies this object. | |
Public Member Functions inherited from Waitable | |
bool | Wait (unsigned long milliseconds, CallStack const &callStack) |
Wait on this object. | |
Additional Inherited Members | |
Static Protected Member Functions inherited from BufferedTransformation | |
static int | DecrementPropagation (int propagation) |
Decrements the propagation count while clamping at 0. | |
Data structure used to store messages.
The queue is implemented with a ByteQueue.
MessageQueue::MessageQueue | ( | unsigned int | nodeSize = 256 | ) |
Construct a MessageQueue.
nodeSize | the initial node size |
Definition at line 11 of file mqueue.cpp.
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inlinevirtual |
Determines whether bytes are ready for retrieval.
Reimplemented from BufferedTransformation.
unsigned int MessageQueue::CopyMessagesTo | ( | BufferedTransformation & | target, |
unsigned int | count = UINT_MAX , |
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const std::string & | channel = DEFAULT_CHANNEL |
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) | const |
Copy messages from this object to another BufferedTransformation.
target | the destination BufferedTransformation |
count | the number of messages to copy |
channel | the channel on which the transfer should occur |
Definition at line 45 of file mqueue.cpp.
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virtual |
Copy bytes from this object to another BufferedTransformation.
target | the destination BufferedTransformation |
begin | the 0-based index of the first byte to copy in the stream |
end | the 0-based index of the last byte to copy in the stream |
channel | the channel on which the transfer should occur |
blocking | specifies whether the object should block when processing input |
CopyRangeTo2 copies bytes from this object to the destination. The bytes are not removed from this object. Copying begins at the index position in the current stream, and not from an absolute position in the stream.
begin is an IN and OUT parameter. When the call is made, begin is the starting position of the copy. When the call returns, begin is the position of the first byte that was not copied (which may be different than end). begin can be used for subsequent calls to CopyRangeTo2().
Implements BufferedTransformation.
Definition at line 16 of file mqueue.cpp.
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virtual |
Start retrieving the next message.
GetNextMessage() returns true if a message is ready for retrieval; false if no more messages exist or this message is not completely retrieved.
Reimplemented from BufferedTransformation.
Definition at line 32 of file mqueue.cpp.
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inlinevirtual |
Flushes data buffered by this object, without signal propagation.
hardFlush | indicates whether all data should be flushed |
blocking | specifies whether the object should block when processing input |
Implements BufferedTransformation.
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inlinevirtual |
Initialize or reinitialize this object, without signal propagation.
parameters | a set of NameValuePairs to initialize this object |
NotImplemented |
IsolatedInitialize() is used to initialize or reinitialize an object using a variable number of arbitrarily typed arguments. The function avoids the need for multiple constructors providing all possible combintations of configurable parameters.
IsolatedInitialize() does not call Initialize() on attached transformations. If initialization should be propagated, then use the Initialize() function.
If a derived class does not override IsolatedInitialize(), then the base class throws NotImplemented.
Reimplemented from BufferedTransformation.
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inlinevirtual |
Marks the end of a series of messages, without signal propagation.
blocking | specifies whether the object should block when completing the processing on the current series of messages |
Reimplemented from BufferedTransformation.
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inlinevirtual |
Provides the number of bytes ready for retrieval.
The number of bytes available are dependent on the source. If an exact value is available, then the exact value is returned. The exact value can include 0 if the source is exhausted.
Some stream-based sources do not allow seeking() on the underlying stream, such as some FileSource(). If the stream does not allow seeking() then MaxRetrievable() returns LWORD_MAX to indicate there are still bytes to be retrieved.
Reimplemented from BufferedTransformation.
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inlinevirtual |
Provides the number of meesages processed by this object.
NumberOfMessages returns number of times MessageEnd() has been received minus messages retrieved or skipped
Reimplemented from BufferedTransformation.
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inlinevirtual |
Provides the number of messages in a series.
Reimplemented from BufferedTransformation.
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inlinevirtual |
Provides the number of messages in a series.
Reimplemented from BufferedTransformation.
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inlinevirtual |
Input multiple bytes for processing.
inString | the byte buffer to process |
length | the size of the string, in bytes |
messageEnd | means how many filters to signal MessageEnd() to, including this one |
blocking | specifies whether the object should block when processing input |
Derived classes must implement Put2().
Implements BufferedTransformation.
const byte * MessageQueue::Spy | ( | size_t & | contiguousSize | ) | const |
Peek data in the queue.
contiguousSize | the size of the data |
Spy() peeks at data at the head of the queue. Spy() does not remove data from the queue.
The data's size is returned in contiguousSize
. Spy() returns the size of the first message in the list.
Definition at line 65 of file mqueue.cpp.
void MessageQueue::swap | ( | MessageQueue & | rhs | ) |
Swap contents with another MessageQueue.
rhs | the other MessageQueue |
Definition at line 59 of file mqueue.cpp.
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inlinevirtual |
Provides the number of bytes ready for retrieval.
Reimplemented from BufferedTransformation.
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virtual |
Transfer bytes from this object to another BufferedTransformation.
target | the destination BufferedTransformation |
byteCount | the number of bytes to transfer |
channel | the channel on which the transfer should occur |
blocking | specifies whether the object should block when processing input |
TransferTo2() removes bytes from this object and moves them to the destination. Transfer begins at the index position in the current stream, and not from an absolute position in the stream.
byteCount is an IN and OUT parameter. When the call is made, byteCount is the requested size of the transfer. When the call returns, byteCount is the number of bytes that were transferred.
Implements BufferedTransformation.
Definition at line 24 of file mqueue.cpp.