QBufferStructure_t Struct Reference

List of all members.

---

Detailed Description

shared memory structure for a channel.
The main purpose of this structure isto provide access to acquired data to different DAQ classes (and/or processes). In addition to the data buffer, shared memory contains the logical channel Id, the number of valid words contained in the buffer and some pointers. Pointer are used to remember interesting positions inside buffer:

• last word written by the digitizer: fWrite
• first valid word in buffer: fRead
• first word still to be processed by EvBuilder: fNotBuilt
• first word still to be processed by trigger: fNotProcessed
• first word still to be written on file: fReadFile

Public Attributes
unsigned long	fId
unsigned long	fNum
unsigned long long	fRead
unsigned long long	fWrite
unsigned long long	fReadFile
unsigned long long	fNotProcessed
unsigned long long	fNotBuilt
unsigned long	fCurrentRun
bool	fNotProcessedIsActive
bool	fReadPtrIsActive
bool	fNotBuiltIsActive
bool	fSaveFile
unsigned long	fSamplingRate
long	fData [DEFAULT_BUFFER_SIZE]

---

Member Data Documentation

unsigned long QBufferStructure_t::fId

channel id

unsigned long QBufferStructure_t::fNum

number of valid words in buffer

unsigned long long QBufferStructure_t::fRead

first valid word

unsigned long long QBufferStructure_t::fWrite

first free word

unsigned long long QBufferStructure_t::fReadFile

first word to be written on file

unsigned long long QBufferStructure_t::fNotProcessed

first word still to be processed by trigger

unsigned long long QBufferStructure_t::fNotBuilt

first word still to be processed by builder

unsigned long QBufferStructure_t::fCurrentRun

current run number

bool QBufferStructure_t::fNotProcessedIsActive

true if at least 1 trigger algorythm is attached to buffer

bool QBufferStructure_t::fReadPtrIsActive

true if someone other than the buffer itself booked read pointer

bool QBufferStructure_t::fNotBuiltIsActive

true if EventBuilder is attached to buffer

bool QBufferStructure_t::fSaveFile

if true, continuous data stream is written to file

unsigned long QBufferStructure_t::fSamplingRate

sampling rate - needed to associate time to sample number

long QBufferStructure_t::fData[DEFAULT_BUFFER_SIZE]

channel circular buffer

---

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

• /usr/local/cuore/pkg/comm/QCrateReceiverBuffer.hh

---