DCMTK: DVPSIPCMessage Class Reference

DCMTK Version 3.6.9 OFFIS DICOM Toolkit

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Public Member Functions | Private Member Functions | Private Attributes | List of all members
DVPSIPCMessage Class Reference

class for IPC message exchange between different processes of the DICOMscope application More...

## Public Member Functions
| DVPSIPCMessage ()
| default constructor
| DVPSIPCMessage (const DVPSIPCMessage &copy)
| copy constructor
virtual | ~DVPSIPCMessage ()
| destructor
DVPSIPCMessage & | operator= (const DVPSIPCMessage &)
| copy assignment operator
void | setMessageType (Uint32 msgtype)
| sets the message type
Uint32 | getMessageType ()
| returns the message type
void | addStringToPayload (const char *str)
| adds a character string into the message payload.
void | addIntToPayload (Uint32 i)
| adds an integer into the message payload.
OFBool | extractStringFromPayload (OFString &str)
| extracts a string from the message payload and copies it into the given str object.
OFBool | extractIntFromPayload (Uint32 &i)
| extracts an integer from the message payload.
void | rewindPayload ()
| rewinds the read offset to the beginning of the message payload
void | erasePayload ()
| removes all payload
OFBool | send (DcmTransportConnection &connection)
| sends the current message over the given transport connection.
OFBool | receive (DcmTransportConnection &connection)
| receives a messages from the given transport connection and stores it in the current object, replacing any existing payload.

## Private Member Functions
void | resizePayload (size_t i)
| resize payload if necessary such that at least i bytes can be written

## Private Attributes
Uint32 | messageType
| type of message
Uint32 | payloadUsed
| number of bytes actually used in payload
Uint32 | payloadAllocated
| number of bytes allocated in payload
Uint32 | payloadReadOffset
| read offset into payload in bytes
unsigned char * | payload
| pointer to raw payload data in big endian byte order

## Detailed Description

class for IPC message exchange between different processes of the DICOMscope application

## Member Function Documentation

## ◆ addIntToPayload()

void DVPSIPCMessage::addIntToPayload | ( | Uint32 | i | ) |

adds an integer into the message payload.

Parameters

  i | value to write

## ◆ addStringToPayload()

void DVPSIPCMessage::addStringToPayload | ( | const char * | str | ) |

adds a character string into the message payload.

Parameters

  str | zero terminated string, may be NULL (in which case an empty string is added)

## ◆ extractIntFromPayload()

OFBool DVPSIPCMessage::extractIntFromPayload | ( | Uint32 & | i | ) |

extracts an integer from the message payload.

Parameters

  i | integer is written into this parameter

Returns
  OFTrue if successful, OFFalse otherwise

## ◆ extractStringFromPayload()

OFBool DVPSIPCMessage::extractStringFromPayload | ( | OFString & | str | ) |

extracts a string from the message payload and copies it into the given str object.

Parameters

  str | string is written into this parameter

Returns
  OFTrue if successful, OFFalse otherwise

## ◆ getMessageType()

Uint32 DVPSIPCMessage::getMessageType | ( |  | ) |
| inline

returns the message type

Returns
  message type

References messageType.

## ◆ receive()

OFBool DVPSIPCMessage::receive | ( | DcmTransportConnection & | connection | ) |

receives a messages from the given transport connection and stores it in the current object, replacing any existing payload.

Parameters

  connection | transport connection to be used

Returns
  OFTrue if successful, OFFalse otherwise.

## ◆ resizePayload()

void DVPSIPCMessage::resizePayload | ( | size_t | i | ) |
| private

resize payload if necessary such that at least i bytes can be written

Parameters

  i | number of bytes required in buffer

## ◆ send()

OFBool DVPSIPCMessage::send | ( | DcmTransportConnection & | connection | ) |

sends the current message over the given transport connection.

Parameters

  connection | transport connection to be used

Returns
  OFTrue if successful, OFFalse otherwise.

## ◆ setMessageType()

void DVPSIPCMessage::setMessageType | ( | Uint32 | msgtype | ) |
| inline

sets the message type

Parameters

  msgtype | new message type

References messageType.

The documentation for this class was generated from the following file:

- dcmpstat/include/dcmtk/dcmpstat/dvpsmsg.h

Generated on Wed Apr 30 2025 for DCMTK Version 3.6.9 by Doxygen 1.13.2