3 //**************************************************************************
4 //* This file is property of and copyright by the ALICE HLT Project *
5 //* ALICE Experiment at CERN, All rights reserved. *
7 //* Primary Authors: Matthias Richter <Matthias.Richter@ift.uib.no> *
8 //* for The ALICE HLT Project. *
10 //* Permission to use, copy, modify and distribute this software and its *
11 //* documentation strictly for non-commercial purposes is hereby granted *
12 //* without fee, provided that the above copyright notice appears in all *
13 //* copies and that both the copyright notice and this permission notice *
14 //* appear in the supporting documentation. The authors make no claims *
15 //* about the suitability of this software for any purpose. It is *
16 //* provided "as is" without express or implied warranty. *
17 //**************************************************************************
19 /** @file AliHLTDataBuffer.cxx
20 @author Matthias Richter
22 @brief Handling of Data Buffers for HLT components.
29 #include "AliHLTDataBuffer.h"
30 #include "AliHLTConsumerDescriptor.h"
31 #include "AliHLTComponent.h"
32 #include "AliHLTTask.h"
36 //#include "AliHLTSystem.h"
38 typedef vector<AliHLTDataBuffer::AliHLTDataSegment> AliHLTDataSegmentList;
39 typedef vector<AliHLTDataBuffer::AliHLTRawBuffer*> AliHLTRawBufferPList;
41 /** ROOT macro for the implementation of ROOT specific class methods */
42 ClassImp(AliHLTDataBuffer)
44 AliHLTDataBuffer::AliHLTDataBuffer()
52 fForwardedSegmentSources(),
55 // see header file for class documentation
57 // refer to README to build package
59 // visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
62 fActiveConsumers.empty();
63 fReleasedConsumers.empty();
67 int AliHLTDataBuffer::fgNofInstances=0;
68 AliHLTRawBufferPList AliHLTDataBuffer::fgFreeBuffers;
69 AliHLTRawBufferPList AliHLTDataBuffer::fgActiveBuffers;
70 AliHLTUInt32_t AliHLTDataBuffer::fgMargin=1024;
71 AliHLTLogging AliHLTDataBuffer::fgLogging;
72 const Int_t AliHLTDataBuffer::fgkSafetyPatternSize=16;
73 const char AliHLTDataBuffer::fgkSafetyPattern[]={0x28, 0x63, 0x29, 0x4d, 0x52, 0x49, 0x43, 0x48, 0x54, 0x45, 0x52, 0x20, 0x32, 0x30, 0x30, 0x37};
75 AliHLTDataBuffer::~AliHLTDataBuffer()
77 // see header file for function documentation
78 if (--fgNofInstances<=0) {
81 CleanupConsumerList();
84 int AliHLTDataBuffer::SetConsumer(AliHLTComponent* pConsumer)
86 // see header file for function documentation
89 if (FindConsumer(pConsumer)) {
90 HLTWarning("consumer %s (%p) already set to data buffer %p", pConsumer->GetComponentID(), pConsumer, this);
92 AliHLTConsumerDescriptor* pDesc=new AliHLTConsumerDescriptor(pConsumer);
94 fConsumers.push_back(pDesc);
95 HLTDebug("set consumer %s (%p) to data buffer %p", pConsumer->GetComponentID(), pConsumer, this);
97 HLTError("memory allocation failed");
101 HLTError("invalid parameter: consumer component (nil)");
107 int AliHLTDataBuffer::FindMatchingDataBlocks(const AliHLTComponent* pConsumer, AliHLTComponentDataTypeList* tgtList)
109 // see header file for function documentation
112 AliHLTDataSegmentList segments;
113 if ((iResult=FindMatchingDataSegments(pConsumer, segments))>=0) {
115 AliHLTDataSegmentList::iterator segment=segments.begin();
116 while (segment!=segments.end()) {
117 tgtList->push_back((*segment).fDataType);
121 iResult=segments.size();
129 int AliHLTDataBuffer::FindMatchingDataSegments(const AliHLTComponent* pConsumer, vector<AliHLTDataBuffer::AliHLTDataSegment>& tgtList)
131 // see header file for function documentation
134 // Matthias 26.09.2007 relax the restriction to matching data blocks
135 // all blocks are passed to the consumer, which is the policy also in
137 tgtList.assign(fSegments.begin(), fSegments.end());
139 // add all forwarded blocks
140 tgtList.insert(tgtList.begin(), fForwardedSegments.begin(), fForwardedSegments.end());
141 iResult=tgtList.size();
145 AliHLTComponentDataTypeList dtlist;
146 ((AliHLTComponent*)pConsumer)->GetInputDataTypes(dtlist);
147 AliHLTDataSegmentList::iterator segment=fSegments.begin();
148 while (segment!=fSegments.end()) {
149 AliHLTComponentDataTypeList::iterator type=dtlist.begin();
150 while (type!=dtlist.end()) {
151 if ((*segment).fDataType==(*type)) {
152 tgtList.push_back(*segment);
166 int AliHLTDataBuffer::Subscribe(const AliHLTComponent* pConsumer, AliHLTComponentBlockDataList& blockDescList)
168 // see header file for function documentation
172 AliHLTConsumerDescriptor* pDesc=FindConsumer(pConsumer, fConsumers);
174 AliHLTDataSegmentList tgtList;
175 // Matthias 26.07.2007 AliHLTSystem should behave the same way as PubSub
176 // so it does not matter if there are matching data types or not, unless
177 // we implement such a check in PubSub
178 if ((iResult=FindMatchingDataSegments(pConsumer, tgtList))>=0) {
179 AliHLTDataSegmentList::iterator segment=tgtList.begin();
180 while (segment!=tgtList.end()) {
181 // fill the block data descriptor
182 AliHLTComponentBlockData bd;
183 AliHLTComponent::FillBlockData(bd);
184 // This models the behavior of PubSub.
185 // For incoming data blocks, fOffset must be ignored by the
186 // processing component. It is set for bookkeeping in the framework.
187 // fPtr always points to the beginning of the data.
189 AliHLTUInt8_t* pTgt=*segment;
190 bd.fPtr=reinterpret_cast<void*>(pTgt);
191 bd.fSize=(*segment).fSegmentSize;
192 bd.fDataType=(*segment).fDataType;
193 bd.fSpecification=(*segment).fSpecification;
194 blockDescList.push_back(bd);
195 pDesc->SetActiveDataSegment(*segment);
196 HLTDebug("component %p (%s) subscribed to segment offset %d size %d data type %s %#x",
197 pConsumer, ((AliHLTComponent*)pConsumer)->GetComponentID(), bd.fOffset,
198 bd.fSize, (AliHLTComponent::DataType2Text(bd.fDataType)).c_str(),
202 // move this consumer to the active list
203 if (tgtList.size()==0) {
204 ChangeConsumerState(pDesc, fConsumers, fReleasedConsumers);
205 HLTDebug("no input data for component %p (%s) available", pConsumer, ((AliHLTComponent*)pConsumer)->GetComponentID());
206 } else if (ChangeConsumerState(pDesc, fConsumers, fActiveConsumers)>=0) {
207 HLTDebug("component %p (%s) subscribed to data buffer %p", pConsumer, ((AliHLTComponent*)pConsumer)->GetComponentID(), this);
209 // TODO: cleanup the consumer descriptor correctly
210 segment=tgtList.begin();
211 while (segment!=tgtList.end()) {
212 blockDescList.pop_back();
215 HLTError("can not activate consumer %p for data buffer %p", pConsumer, this);
219 HLTError("unresolved data segment(s) for component %p (%s)", pConsumer, ((AliHLTComponent*)pConsumer)->GetComponentID());
223 HLTError("component %p is not a data consumer of data buffer %s", pConsumer, this);
227 // Matthias 26.07.2007 until now, data had to be present for successful subscription
228 // in order to be consistent with the PubSub framework, this restiction has been
230 //HLTError("data buffer %p is empty", this);
234 HLTError("invalid parameter");
240 int AliHLTDataBuffer::Release(AliHLTComponentBlockData* pBlockDesc,
241 const AliHLTComponent* pConsumer,
242 const AliHLTTask* pOwnerTask)
244 // see header file for function documentation
246 if (pBlockDesc && pConsumer) {
247 AliHLTConsumerDescriptor* pDesc=FindConsumer(pConsumer, fActiveConsumers);
249 if ((iResult=pDesc->CheckActiveDataSegment(AliHLTDataSegment(pBlockDesc->fPtr, pBlockDesc->fOffset, pBlockDesc->fSize)))!=1) {
250 HLTWarning("data segment mismatch, component %p has not subscribed to a segment with offset %#x and size %d", pConsumer, pBlockDesc->fOffset, pBlockDesc->fSize);
251 // TODO: appropriate error handling, but so far optional
254 pDesc->ReleaseActiveDataSegment(AliHLTDataSegment(pBlockDesc->fPtr, pBlockDesc->fOffset, pBlockDesc->fSize));
256 if (GetNofPendingConsumers()==0 && fForwardedSegments.size()>0) {
257 // last consumer, release forwarded segments
258 assert(fForwardedSegments.size()==fForwardedSegmentSources.size());
259 AliHLTDataSegmentList::iterator segment=fForwardedSegments.begin();
260 AliHLTTaskPList::iterator src=fForwardedSegmentSources.begin();
261 //HLTDebug("%p checking forwarded segments", this);
262 for (; segment!=fForwardedSegments.end(); segment++, src++) {
263 //HLTDebug("segment ptr=%p offset=%d size=%d\n"
264 // "block ptr=%p offset=%d size=%d", (*segment).fPtr, (*segment).fSegmentOffset, (*segment).fSegmentSize, pBlockDesc->fPtr, pBlockDesc->fOffset, pBlockDesc->fSize);
265 if ((*segment)==AliHLTDataSegment(pBlockDesc->fPtr, pBlockDesc->fOffset, pBlockDesc->fSize)) {
266 //HLTDebug("release segment of task %p", *src);
267 assert((*src)!=NULL);
269 if ((*src)->Release(pBlockDesc, pOwnerTask)>=0) {
270 HLTDebug("task %s (%p) released forwarded segment %p size %d of task %s (%p)",
271 pOwnerTask->GetName(), pOwnerTask, (*segment).GetPtr(), (*segment).GetSize(),
272 (*src)->GetName(), *src);
274 HLTError("task %s (%p) failed releasing forwarded segment %p size %d of task %s (%p)",
275 pOwnerTask->GetName(), pOwnerTask, (*segment).GetPtr(), (*segment).GetSize(),
276 (*src)->GetName(), *src);
279 fForwardedSegments.erase(segment);
280 fForwardedSegmentSources.erase(src);
285 pBlockDesc->fOffset=0;
286 pBlockDesc->fPtr=NULL;
288 if (pDesc->GetNofActiveSegments()==0) {
289 if ((iResult=ChangeConsumerState(pDesc, fActiveConsumers, fReleasedConsumers))>=0) {
290 if (GetNofActiveConsumers()==0 && GetNofPendingConsumers()==0) {
291 // this is the last consumer, reset the consumer list and release the raw buffer
295 HLTError("can not deactivate consumer %p for data buffer %p", pConsumer, this);
300 HLTWarning("component %p has currently not subscribed to the data buffer %p", pConsumer, this);
304 HLTError("inavalid parameter: pBlockDesc=%p pConsumer=%p", pBlockDesc, pConsumer);
310 int AliHLTDataBuffer::Forward(AliHLTTask* pSrcTask, AliHLTComponentBlockData* pBlockDesc)
312 // see header file for function documentation
313 if (pSrcTask==NULL || pBlockDesc==NULL) return -EINVAL;
314 assert(fForwardedSegments.size()==fForwardedSegmentSources.size());
315 if (fForwardedSegments.size()!=fForwardedSegmentSources.size()) return -EFAULT;
316 fForwardedSegmentSources.push_back(pSrcTask);
317 fForwardedSegments.push_back(AliHLTDataSegment(pBlockDesc->fPtr, pBlockDesc->fOffset, pBlockDesc->fSize, pBlockDesc->fDataType, pBlockDesc->fSpecification));
321 AliHLTUInt8_t* AliHLTDataBuffer::GetTargetBuffer(int iMinSize)
323 // see header file for function documentation
324 AliHLTUInt8_t* pTargetBuffer=NULL;
325 if (fpBuffer!=NULL) {
326 HLTWarning("data buffer not properly reset, possible memory leak\n");
328 fpBuffer=CreateRawBuffer(iMinSize);
330 pTargetBuffer=*fpBuffer;
332 HLTError("can not create raw buffer");
334 return pTargetBuffer;
337 int AliHLTDataBuffer::SetSegments(AliHLTUInt8_t* pTgt, AliHLTComponentBlockData* arrayBlockData, int iSize)
339 // see header file for function documentation
341 if (pTgt && arrayBlockData && iSize>=0) {
343 if (*fpBuffer==pTgt) {
344 AliHLTDataBuffer::AliHLTDataSegment segment;
345 for (int i=0; i<iSize; i++) {
346 // This function has to model the behavior of PubSub
347 // For output blocks only the fOffset value is used, this must be the offset
348 // relative to the output pointer. fPtr must be either NULL or the output
349 // pointer. In either case it is 'ignored' and set to the beginning of the
351 if (arrayBlockData[i].fPtr==NULL ||
352 arrayBlockData[i].fPtr==*fpBuffer) {
353 arrayBlockData[i].fPtr=*fpBuffer;
354 if (arrayBlockData[i].fOffset+arrayBlockData[i].fSize<=fpBuffer->GetUsedSize()) {
355 segment.fSegmentOffset=arrayBlockData[i].fOffset;
356 segment.fPtr=(AliHLTUInt8_t*)arrayBlockData[i].fPtr;
357 segment.fSegmentSize=arrayBlockData[i].fSize;
358 segment.fDataType=arrayBlockData[i].fDataType;
359 segment.fSpecification=arrayBlockData[i].fSpecification;
360 fSegments.push_back(segment);
361 HLTDebug("set segment %s with size %d at offset %d", AliHLTComponent::DataType2Text(segment.fDataType).data(), segment.fSegmentSize, segment.fSegmentOffset);
363 HLTError("block data specification %#d (%s) exceeds size of data buffer", i, AliHLTComponent::DataType2Text(arrayBlockData[i].fDataType).data());
364 HLTError("block offset=%d, block size=%d, buffer size=%d", arrayBlockData[i].fOffset, arrayBlockData[i].fSize, fpBuffer->GetUsedSize());
368 HLTError("invalid pointer (%p) in block data specification (buffer %p size %d)."
369 "please note: for output blocks only the fOffset value is valid and must "
370 "be relative to the output buffer", arrayBlockData[i].fPtr, fpBuffer->GetPointer(), fpBuffer->GetUsedSize());
375 HLTError("this data buffer (%p) does not match the internal data buffer %p of raw buffer %p", pTgt, fpBuffer->GetPointer(), fpBuffer);
379 HLTFatal("internal data structur mismatch");
383 HLTError("invalid parameter: pTgtBuffer=%p arrayBlockData=%p", pTgt, arrayBlockData);
389 int AliHLTDataBuffer::IsEmpty()
391 // see header file for function documentation
392 int iResult=fpBuffer==NULL || GetNofSegments()==0;
396 int AliHLTDataBuffer::GetNofSegments()
398 // see header file for function documentation
399 int iResult=fSegments.size();
403 int AliHLTDataBuffer::GetNofConsumers()
405 // see header file for function documentation
406 int iResult=fConsumers.size() + GetNofActiveConsumers() + fReleasedConsumers.size();
410 int AliHLTDataBuffer::GetNofPendingConsumers()
412 // see header file for function documentation
413 int iResult=fConsumers.size();
417 int AliHLTDataBuffer::GetNofActiveConsumers()
419 // see header file for function documentation
420 int iResult=fActiveConsumers.size();
424 AliHLTDataBuffer::AliHLTRawBuffer* AliHLTDataBuffer::CreateRawBuffer(AliHLTUInt32_t size)
426 // see header file for function documentation
427 AliHLTRawBuffer* pRawBuffer=NULL;
428 unsigned int reqSize=size+fgkSafetyPatternSize;
429 AliHLTRawBufferPList::iterator buffer=fgFreeBuffers.begin();
430 while (buffer!=fgFreeBuffers.end() && pRawBuffer==NULL) {
431 if ((*buffer)->CheckSize(reqSize)) {
432 // assign this element
434 pRawBuffer->UseBuffer(size);
435 fgFreeBuffers.erase(buffer);
436 fgLogging.Logging(kHLTLogDebug, "AliHLTDataBuffer::CreateRawBuffer", "data buffer handling", "raw buffer container %p provided for request of %d bytes (total %d available in buffer %p)", pRawBuffer, size, pRawBuffer->GetTotalSize(), pRawBuffer->GetPointer());
437 fgActiveBuffers.push_back(pRawBuffer);
442 if (pRawBuffer==NULL) {
443 // no buffer found, create a new one
444 pRawBuffer=new AliHLTRawBuffer(reqSize);
446 if (pRawBuffer->GetPointer()) {
447 pRawBuffer->UseBuffer(size);
448 fgActiveBuffers.push_back(pRawBuffer);
449 fgLogging.Logging(kHLTLogDebug, "AliHLTDataBuffer::CreateRawBuffer", "data buffer handling", "new raw buffer %p of size %d created (container %p)", pRawBuffer->GetPointer(), pRawBuffer->GetTotalSize(), pRawBuffer);
453 fgLogging.Logging(kHLTLogError, "AliHLTDataBuffer::CreateRawBuffer", "data buffer handling", "memory allocation failed");
456 fgLogging.Logging(kHLTLogError, "AliHLTDataBuffer::CreateRawBuffer", "data buffer handling", "memory allocation failed");
459 if (pRawBuffer!=NULL && fgkSafetyPatternSize>0) {
460 //fgLogging.Logging(kHLTLogDebug, "AliHLTDataBuffer::CreateRawBuffer", "data buffer handling", "writing safety pattern to %p offset %d", (*buffer)->GetPointer(), (*buffer)->GetUsedSize());
461 pRawBuffer->WritePattern(fgkSafetyPattern, fgkSafetyPatternSize);
466 int AliHLTDataBuffer::ReleaseRawBuffer(AliHLTRawBuffer* pBuffer)
468 // see header file for function documentation
471 AliHLTRawBufferPList::iterator buffer=fgActiveBuffers.begin();
472 while (buffer!=fgActiveBuffers.end() && (*buffer)!=pBuffer) {
475 if (buffer!=fgActiveBuffers.end()) {
476 if (fgkSafetyPatternSize>0) {
477 //fgLogging.Logging(kHLTLogDebug, "AliHLTDataBuffer::ReleaseRawBuffer", "data buffer handling", "comparing safety pattern at %p offset %d", (*buffer)->GetPointer(), reinterpret_cast<AliHLTUInt32_t>(*buffer));
478 if ((*buffer)->CheckPattern(fgkSafetyPattern, fgkSafetyPatternSize)) {
479 fgLogging.Logging(kHLTLogFatal, "AliHLTDataBuffer::ReleaseRawBuffer", "data buffer handling", "component has written beyond end of data buffer %p size %d", (*buffer)->GetPointer(), (*buffer)->GetUsedSize());
483 fgFreeBuffers.push_back(*buffer);
484 fgActiveBuffers.erase(buffer);
486 fgLogging.Logging(kHLTLogWarning, "AliHLTDataBuffer::ReleaseRawBuffer", "data buffer handling", "can not find raw buffer container %p in the list of active containers", pBuffer);
490 fgLogging.Logging(kHLTLogError, "AliHLTDataBuffer::ReleaseRawBuffer", "data buffer handling", "invalid parameter");
497 int AliHLTDataBuffer::DeleteRawBuffers()
499 // see header file for function documentation
502 // int iCount=fgFreeBuffers.size()+fgActiveBuffers.size();
503 AliHLTRawBufferPList::iterator buffer;;
504 while ((buffer=fgFreeBuffers.begin())!=fgFreeBuffers.end()) {
505 // iTotalSize+=(*buffer)->GetTotalSize();
507 fgFreeBuffers.erase(buffer);
509 while ((buffer=fgActiveBuffers.begin())!=fgActiveBuffers.end()) {
510 // iTotalSize+=(*buffer)->GetTotalSize();
511 fgLogging.Logging(kHLTLogWarning, "AliHLTDataBuffer::ReleaseRawBuffer", "data buffer handling", "request to delete active raw buffer container (raw buffer %p, size %d)", (*buffer)->GetPointer(), (*buffer)->GetTotalSize());
513 fgActiveBuffers.erase(buffer);
515 // fgLogging.Logging(kHLTLogInfo, "AliHLTDataBuffer::ReleaseRawBuffer", "data buffer handling", "Total memory allocation: %d byte in %d buffers", iTotalSize, iCount);
519 AliHLTConsumerDescriptor* AliHLTDataBuffer::FindConsumer(const AliHLTComponent* pConsumer, AliHLTConsumerDescriptorPList &list) const
521 // see header file for function documentation
522 AliHLTConsumerDescriptor* pDesc=NULL;
523 AliHLTConsumerDescriptorPList::iterator desc=list.begin();
524 while (desc!=list.end() && pDesc==NULL) {
525 if ((pConsumer==NULL || (*desc)->GetComponent()==pConsumer)) {
533 int AliHLTDataBuffer::ResetDataBuffer()
535 // see header file for function documentation
537 AliHLTRawBuffer* pBuffer=fpBuffer;
540 // cleanup forwarded segment lists
541 assert(fForwardedSegments.size()==0);
542 fForwardedSegments.clear();
543 fForwardedSegmentSources.clear();
545 // cleanup consumer states
546 AliHLTConsumerDescriptorPList::iterator desc;
547 // if (GetNofPendingConsumers()>0) {
548 // desc=fConsumers.begin();
549 // while (desc!=fConsumers.end()) {
550 // AliHLTComponent* pComp=(*desc)->GetComponent();
551 // HLTError("internal error: consumer %p (%s %p) did not get data from data buffer %p", *desc, pComp?pComp->GetComponentID():"", pComp, this);
555 desc=fReleasedConsumers.begin();
556 while (desc!=fReleasedConsumers.end()) {
557 AliHLTConsumerDescriptor* pDesc=*desc;
558 fReleasedConsumers.erase(desc);
559 desc=fReleasedConsumers.begin();
560 fConsumers.push_back(pDesc);
562 desc=fActiveConsumers.begin();
563 while (desc!=fActiveConsumers.end()) {
564 AliHLTConsumerDescriptor* pDesc=*desc;
565 HLTWarning("consumer %p was not released", pDesc);
566 fActiveConsumers.erase(desc);
567 desc=fActiveConsumers.begin();
568 fConsumers.push_back(pDesc);
572 AliHLTDataSegmentList::iterator segment=fSegments.begin();
573 while (segment!=fSegments.end()) {
574 fSegments.erase(segment);
575 segment=fSegments.begin();
578 // cleanup raw buffer
580 ReleaseRawBuffer(pBuffer);
585 int AliHLTDataBuffer::Reset()
587 // see header file for function documentation
588 return ResetDataBuffer();
591 // this is the version which works on lists of components instead of consumer descriptors
592 // int AliHLTDataBuffer::ChangeConsumerState(AliHLTComponent* pConsumer, AliHLTComponentPList &srcList, AliHLTComponentPList &tgtList)
596 // AliHLTComponentPList::iterator desc=srcList.begin();
597 // while (desc!=srcList.end()) {
598 // if ((*desc)==pConsumer) {
599 // srcList.erase(desc);
600 // tgtList.push_back(pConsumer);
605 // if (desc==srcList.end()) {
606 // HLTError("can not find consumer component %p in list", pConsumer);
610 // HLTError("invalid parameter");
616 int AliHLTDataBuffer::ChangeConsumerState(AliHLTConsumerDescriptor* pDesc, AliHLTConsumerDescriptorPList &srcList, AliHLTConsumerDescriptorPList &tgtList)
618 // see header file for function documentation
621 AliHLTConsumerDescriptorPList::iterator desc=srcList.begin();
622 while (desc!=srcList.end()) {
623 if ((*desc)==pDesc) {
625 tgtList.push_back(pDesc);
632 HLTError("can not find consumer descriptor %p in list", pDesc);
635 HLTError("invalid parameter");
641 int AliHLTDataBuffer::CleanupConsumerList()
643 // see header file for function documentation
646 AliHLTConsumerDescriptorPList::iterator desc=fConsumers.begin();
647 while (desc!=fConsumers.end()) {
649 fConsumers.erase(desc);
650 desc=fConsumers.begin();
655 int AliHLTDataBuffer::FindConsumer(AliHLTComponent* pConsumer, int bAllLists)
657 // see header file for function documentation
658 AliHLTConsumerDescriptorPList::iterator desc=fConsumers.begin();
659 while (desc!=fConsumers.end()) {
660 if ((*desc)->GetComponent()==pConsumer)
664 if (bAllLists==0) return 0;
666 desc=fActiveConsumers.begin();
667 while (desc!=fActiveConsumers.end()) {
668 if ((*desc)->GetComponent()==pConsumer)
672 desc=fReleasedConsumers.begin();
673 while (desc!=fReleasedConsumers.end()) {
674 if ((*desc)->GetComponent()==pConsumer)
681 AliHLTDataBuffer::AliHLTRawBuffer::AliHLTRawBuffer(AliHLTUInt32_t size)
685 fPtr(static_cast<AliHLTUInt8_t*>(malloc(size)))
687 // see header file for class documentation
689 // refer to README to build package
691 // visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
698 AliHLTDataBuffer::AliHLTRawBuffer::~AliHLTRawBuffer()
708 int AliHLTDataBuffer::AliHLTRawBuffer::operator==(void* ptr) const
710 // see header file for function documentation
711 return fPtr == static_cast<AliHLTUInt8_t*>(ptr);
714 int AliHLTDataBuffer::AliHLTRawBuffer::operator<=(void* ptr) const
716 // see header file for function documentation
717 int iResult=fPtr <= static_cast<AliHLTUInt8_t*>(ptr);
718 //printf("%p: %p <= %p (%d)\n", this, fPtr, ptr, iResult);
722 int AliHLTDataBuffer::AliHLTRawBuffer::operator>(void* ptr) const
724 // see header file for function documentation
725 int iResult=fPtr+fSize > static_cast<AliHLTUInt8_t*>(ptr);
726 //printf("%p: %p + %d > %p (%d)\n", this, fPtr, fSize, ptr, iResult);
730 int AliHLTDataBuffer::AliHLTRawBuffer::operator-(void* ptr) const
732 // see header file for function documentation
733 return static_cast<int>(static_cast<AliHLTUInt8_t*>(ptr)-fPtr);
736 AliHLTUInt8_t* AliHLTDataBuffer::AliHLTRawBuffer::UseBuffer(AliHLTUInt32_t size)
738 // see header file for function documentation
739 if (size>0 && fTotalSize>=size) {
746 int AliHLTDataBuffer::AliHLTRawBuffer::CheckSize(AliHLTUInt32_t size) const
748 // see header file for function documentation
749 return fTotalSize>=size && ((fTotalSize-size)<fgMargin);
752 int AliHLTDataBuffer::AliHLTRawBuffer::Reset()
754 // see header file for function documentation
759 int AliHLTDataBuffer::AliHLTRawBuffer::WritePattern(const char* pattern, int size)
761 // see header file for function documentation
763 if (pattern!=NULL && size>0) {
764 if (fSize+size<=fTotalSize) {
765 memcpy(((char*)fPtr)+fSize, pattern, size);
774 int AliHLTDataBuffer::AliHLTRawBuffer::CheckPattern(const char* pattern, int size) const
776 // see header file for function documentation
778 if (pattern!=NULL && size>0) {
779 if (fSize+size<=fTotalSize) {
780 iResult=memcmp(((char*)fPtr)+fSize, pattern, size)!=0;