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 if (!FindConsumer(pConsumer)) {
224 HLTError("component %p is not a data consumer of data buffer %p", pConsumer, this);
226 HLTError("component %p is a valid data consumer of data buffer %p, but did not release it's buffer subscription", pConsumer, this);
231 // Matthias 26.07.2007 until now, data had to be present for successful subscription
232 // in order to be consistent with the PubSub framework, this restiction has been
234 //HLTError("data buffer %p is empty", this);
238 HLTError("invalid parameter");
244 int AliHLTDataBuffer::Release(AliHLTComponentBlockData* pBlockDesc,
245 const AliHLTComponent* pConsumer,
246 const AliHLTTask* pOwnerTask)
248 // see header file for function documentation
250 if (pBlockDesc && pConsumer) {
251 AliHLTConsumerDescriptor* pDesc=FindConsumer(pConsumer, fActiveConsumers);
253 if ((iResult=pDesc->CheckActiveDataSegment(AliHLTDataSegment(pBlockDesc->fPtr, pBlockDesc->fOffset, pBlockDesc->fSize)))!=1) {
254 HLTWarning("data segment mismatch, component %p has not subscribed to a segment with offset %#x and size %d", pConsumer, pBlockDesc->fOffset, pBlockDesc->fSize);
255 // TODO: appropriate error handling, but so far optional
258 pDesc->ReleaseActiveDataSegment(AliHLTDataSegment(pBlockDesc->fPtr, pBlockDesc->fOffset, pBlockDesc->fSize));
260 if (GetNofPendingConsumers()==0 && fForwardedSegments.size()>0) {
261 // last consumer, release forwarded segments
262 ReleaseForwardedBlock(pBlockDesc, pOwnerTask);
264 pBlockDesc->fOffset=0;
265 pBlockDesc->fPtr=NULL;
267 if (pDesc->GetNofActiveSegments()==0) {
268 if ((iResult=ChangeConsumerState(pDesc, fActiveConsumers, fReleasedConsumers))>=0) {
269 if (GetNofActiveConsumers()==0 && GetNofPendingConsumers()==0) {
270 // this is the last consumer, reset the consumer list and release the raw buffer
274 HLTError("can not deactivate consumer %p for data buffer %p", pConsumer, this);
279 HLTWarning("component %p has currently not subscribed to the data buffer %p", pConsumer, this);
283 HLTError("inavalid parameter: pBlockDesc=%p pConsumer=%p", pBlockDesc, pConsumer);
289 int AliHLTDataBuffer::ReleaseForwardedBlock(AliHLTComponentBlockData* pBlockDesc,
290 const AliHLTTask* pOwnerTask)
292 // see header file for function documentation
294 if (pBlockDesc && pOwnerTask) {
295 assert(fForwardedSegments.size()==fForwardedSegmentSources.size());
296 AliHLTDataSegmentList::iterator segment=fForwardedSegments.begin();
297 AliHLTTaskPList::iterator src=fForwardedSegmentSources.begin();
298 //HLTDebug("%p checking forwarded segments", this);
299 for (; segment!=fForwardedSegments.end(); segment++, src++) {
300 //HLTDebug("segment ptr=%p offset=%d size=%d\n"
301 // "block ptr=%p offset=%d size=%d", (*segment).fPtr, (*segment).fSegmentOffset, (*segment).fSegmentSize, pBlockDesc->fPtr, pBlockDesc->fOffset, pBlockDesc->fSize);
302 if ((*segment)==AliHLTDataSegment(pBlockDesc->fPtr, pBlockDesc->fOffset, pBlockDesc->fSize)) {
303 //HLTDebug("release segment of task %p", *src);
304 assert((*src)!=NULL);
306 if ((*src)->Release(pBlockDesc, pOwnerTask)>=0) {
307 HLTDebug("task %s (%p) released forwarded segment %p size %d of task %s (%p)",
308 pOwnerTask->GetName(), pOwnerTask, (*segment).GetPtr(), (*segment).GetSize(),
309 (*src)->GetName(), *src);
311 HLTError("task %s (%p) failed releasing forwarded segment %p size %d of task %s (%p)",
312 pOwnerTask->GetName(), pOwnerTask, (*segment).GetPtr(), (*segment).GetSize(),
313 (*src)->GetName(), *src);
316 fForwardedSegments.erase(segment);
317 fForwardedSegmentSources.erase(src);
322 HLTError("inavalid parameter: pBlockDesc=%p pOwnerTask=%p", pBlockDesc, pOwnerTask);
328 int AliHLTDataBuffer::Forward(AliHLTTask* pSrcTask, AliHLTComponentBlockData* pBlockDesc)
330 // see header file for function documentation
331 if (pSrcTask==NULL || pBlockDesc==NULL) return -EINVAL;
332 assert(fForwardedSegments.size()==fForwardedSegmentSources.size());
333 if (fForwardedSegments.size()!=fForwardedSegmentSources.size()) return -EFAULT;
334 fForwardedSegmentSources.push_back(pSrcTask);
335 fForwardedSegments.push_back(AliHLTDataSegment(pBlockDesc->fPtr, pBlockDesc->fOffset, pBlockDesc->fSize, pBlockDesc->fDataType, pBlockDesc->fSpecification));
339 AliHLTUInt8_t* AliHLTDataBuffer::GetTargetBuffer(int iMinSize)
341 // see header file for function documentation
342 AliHLTUInt8_t* pTargetBuffer=NULL;
343 if (fpBuffer!=NULL) {
344 HLTWarning("data buffer not properly reset, possible memory leak\n");
346 fpBuffer=CreateRawBuffer(iMinSize);
348 pTargetBuffer=*fpBuffer;
350 HLTError("can not create raw buffer");
352 return pTargetBuffer;
355 int AliHLTDataBuffer::SetSegments(AliHLTUInt8_t* pTgt, AliHLTComponentBlockData* arrayBlockData, int iSize)
357 // see header file for function documentation
359 if (pTgt && arrayBlockData && iSize>=0) {
361 if (*fpBuffer==pTgt) {
362 AliHLTDataBuffer::AliHLTDataSegment segment;
363 for (int i=0; i<iSize; i++) {
364 // This function has to model the behavior of PubSub
365 // For output blocks only the fOffset value is used, this must be the offset
366 // relative to the output pointer. fPtr must be either NULL or the output
367 // pointer. In either case it is 'ignored' and set to the beginning of the
369 if (arrayBlockData[i].fPtr==NULL ||
370 arrayBlockData[i].fPtr==*fpBuffer) {
371 arrayBlockData[i].fPtr=*fpBuffer;
372 if (arrayBlockData[i].fOffset+arrayBlockData[i].fSize<=fpBuffer->GetUsedSize()) {
373 segment.fSegmentOffset=arrayBlockData[i].fOffset;
374 segment.fPtr=(AliHLTUInt8_t*)arrayBlockData[i].fPtr;
375 segment.fSegmentSize=arrayBlockData[i].fSize;
376 segment.fDataType=arrayBlockData[i].fDataType;
377 segment.fSpecification=arrayBlockData[i].fSpecification;
378 fSegments.push_back(segment);
379 HLTDebug("set segment %s with size %d at offset %d", AliHLTComponent::DataType2Text(segment.fDataType).data(), segment.fSegmentSize, segment.fSegmentOffset);
381 HLTError("block data specification %#d (%s) exceeds size of data buffer", i, AliHLTComponent::DataType2Text(arrayBlockData[i].fDataType).data());
382 HLTError("block offset=%d, block size=%d, buffer size=%d", arrayBlockData[i].fOffset, arrayBlockData[i].fSize, fpBuffer->GetUsedSize());
386 HLTError("invalid pointer (%p) in block data specification (buffer %p size %d)."
387 "please note: for output blocks only the fOffset value is valid and must "
388 "be relative to the output buffer", arrayBlockData[i].fPtr, fpBuffer->GetPointer(), fpBuffer->GetUsedSize());
393 HLTError("this data buffer (%p) does not match the internal data buffer %p of raw buffer %p", pTgt, fpBuffer->GetPointer(), fpBuffer);
397 HLTFatal("internal data structur mismatch");
401 HLTError("invalid parameter: pTgtBuffer=%p arrayBlockData=%p", pTgt, arrayBlockData);
407 int AliHLTDataBuffer::IsEmpty()
409 // see header file for function documentation
410 int iResult=(fpBuffer==NULL && fForwardedSegments.size()==0) || GetNofSegments()==0;
414 int AliHLTDataBuffer::GetNofSegments()
416 // see header file for function documentation
417 int iResult=fSegments.size() + fForwardedSegments.size();
421 int AliHLTDataBuffer::GetNofConsumers()
423 // see header file for function documentation
424 int iResult=fConsumers.size() + GetNofActiveConsumers() + fReleasedConsumers.size();
428 int AliHLTDataBuffer::GetNofPendingConsumers()
430 // see header file for function documentation
431 int iResult=fConsumers.size();
435 int AliHLTDataBuffer::GetNofActiveConsumers()
437 // see header file for function documentation
438 int iResult=fActiveConsumers.size();
442 AliHLTDataBuffer::AliHLTRawBuffer* AliHLTDataBuffer::CreateRawBuffer(AliHLTUInt32_t size)
444 // see header file for function documentation
445 AliHLTRawBuffer* pRawBuffer=NULL;
446 unsigned int reqSize=size+fgkSafetyPatternSize;
447 AliHLTRawBufferPList::iterator buffer=fgFreeBuffers.begin();
448 while (buffer!=fgFreeBuffers.end() && pRawBuffer==NULL) {
449 if ((*buffer)->CheckSize(reqSize)) {
450 // assign this element
452 pRawBuffer->UseBuffer(size);
453 fgFreeBuffers.erase(buffer);
454 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());
455 fgActiveBuffers.push_back(pRawBuffer);
460 if (pRawBuffer==NULL) {
461 // no buffer found, create a new one
462 pRawBuffer=new AliHLTRawBuffer(reqSize);
464 if (pRawBuffer->GetPointer()) {
465 pRawBuffer->UseBuffer(size);
466 fgActiveBuffers.push_back(pRawBuffer);
467 fgLogging.Logging(kHLTLogDebug, "AliHLTDataBuffer::CreateRawBuffer", "data buffer handling", "new raw buffer %p of size %d created (container %p)", pRawBuffer->GetPointer(), pRawBuffer->GetTotalSize(), pRawBuffer);
471 fgLogging.Logging(kHLTLogError, "AliHLTDataBuffer::CreateRawBuffer", "data buffer handling", "memory allocation failed");
474 fgLogging.Logging(kHLTLogError, "AliHLTDataBuffer::CreateRawBuffer", "data buffer handling", "memory allocation failed");
477 if (pRawBuffer!=NULL && fgkSafetyPatternSize>0) {
478 //fgLogging.Logging(kHLTLogDebug, "AliHLTDataBuffer::CreateRawBuffer", "data buffer handling", "writing safety pattern to %p offset %d", (*buffer)->GetPointer(), (*buffer)->GetUsedSize());
479 pRawBuffer->WritePattern(fgkSafetyPattern, fgkSafetyPatternSize);
484 int AliHLTDataBuffer::ReleaseRawBuffer(AliHLTRawBuffer* pBuffer)
486 // see header file for function documentation
489 AliHLTRawBufferPList::iterator buffer=fgActiveBuffers.begin();
490 while (buffer!=fgActiveBuffers.end() && (*buffer)!=pBuffer) {
493 if (buffer!=fgActiveBuffers.end()) {
494 if (fgkSafetyPatternSize>0) {
495 //fgLogging.Logging(kHLTLogDebug, "AliHLTDataBuffer::ReleaseRawBuffer", "data buffer handling", "comparing safety pattern at %p offset %d", (*buffer)->GetPointer(), reinterpret_cast<AliHLTUInt32_t>(*buffer));
496 if ((*buffer)->CheckPattern(fgkSafetyPattern, fgkSafetyPatternSize)) {
497 fgLogging.Logging(kHLTLogFatal, "AliHLTDataBuffer::ReleaseRawBuffer", "data buffer handling", "component has written beyond end of data buffer %p size %d", (*buffer)->GetPointer(), (*buffer)->GetUsedSize());
501 fgFreeBuffers.push_back(*buffer);
502 fgActiveBuffers.erase(buffer);
504 fgLogging.Logging(kHLTLogWarning, "AliHLTDataBuffer::ReleaseRawBuffer", "data buffer handling", "can not find raw buffer container %p in the list of active containers", pBuffer);
508 fgLogging.Logging(kHLTLogError, "AliHLTDataBuffer::ReleaseRawBuffer", "data buffer handling", "invalid parameter");
515 int AliHLTDataBuffer::DeleteRawBuffers()
517 // see header file for function documentation
519 #ifdef ALIHLTSYSTEM_PROFILING
521 int iCount=fgFreeBuffers.size()+fgActiveBuffers.size();
522 #endif //ALIHLTSYSTEM_PROFILING
523 AliHLTRawBufferPList::iterator buffer;;
524 while ((buffer=fgFreeBuffers.begin())!=fgFreeBuffers.end()) {
525 #ifdef ALIHLTSYSTEM_PROFILING
526 iTotalSize+=(*buffer)->GetTotalSize();
527 #endif //ALIHLTSYSTEM_PROFILING
529 fgFreeBuffers.erase(buffer);
531 while ((buffer=fgActiveBuffers.begin())!=fgActiveBuffers.end()) {
532 #ifdef ALIHLTSYSTEM_PROFILING
533 iTotalSize+=(*buffer)->GetTotalSize();
534 #endif //ALIHLTSYSTEM_PROFILING
535 fgLogging.Logging(kHLTLogWarning, "AliHLTDataBuffer::ReleaseRawBuffer", "data buffer handling", "request to delete active raw buffer container (raw buffer %p, size %d)", (*buffer)->GetPointer(), (*buffer)->GetTotalSize());
537 fgActiveBuffers.erase(buffer);
539 #ifdef ALIHLTSYSTEM_PROFILING
540 fgLogging.Logging(kHLTLogImportant, "AliHLTDataBuffer::ReleaseRawBuffer", "data buffer handling", "Total memory allocation: %d byte in %d buffers", iTotalSize, iCount);
541 #endif //ALIHLTSYSTEM_PROFILING
545 AliHLTConsumerDescriptor* AliHLTDataBuffer::FindConsumer(const AliHLTComponent* pConsumer, AliHLTConsumerDescriptorPList &list) const
547 // see header file for function documentation
548 AliHLTConsumerDescriptor* pDesc=NULL;
549 AliHLTConsumerDescriptorPList::iterator desc=list.begin();
550 while (desc!=list.end() && pDesc==NULL) {
551 if ((pConsumer==NULL || (*desc)->GetComponent()==pConsumer)) {
559 int AliHLTDataBuffer::ResetDataBuffer()
561 // see header file for function documentation
563 AliHLTRawBuffer* pBuffer=fpBuffer;
566 // cleanup forwarded segment lists
567 assert(fForwardedSegments.size()==0);
568 fForwardedSegments.clear();
569 fForwardedSegmentSources.clear();
571 // cleanup consumer states
572 AliHLTConsumerDescriptorPList::iterator desc;
573 // if (GetNofPendingConsumers()>0) {
574 // desc=fConsumers.begin();
575 // while (desc!=fConsumers.end()) {
576 // AliHLTComponent* pComp=(*desc)->GetComponent();
577 // HLTError("internal error: consumer %p (%s %p) did not get data from data buffer %p", *desc, pComp?pComp->GetComponentID():"", pComp, this);
581 desc=fReleasedConsumers.begin();
582 while (desc!=fReleasedConsumers.end()) {
583 AliHLTConsumerDescriptor* pDesc=*desc;
584 fReleasedConsumers.erase(desc);
585 desc=fReleasedConsumers.begin();
586 fConsumers.push_back(pDesc);
588 desc=fActiveConsumers.begin();
589 while (desc!=fActiveConsumers.end()) {
590 AliHLTConsumerDescriptor* pDesc=*desc;
591 HLTWarning("consumer %p was not released", pDesc);
592 fActiveConsumers.erase(desc);
593 desc=fActiveConsumers.begin();
594 fConsumers.push_back(pDesc);
598 AliHLTDataSegmentList::iterator segment=fSegments.begin();
599 while (segment!=fSegments.end()) {
600 fSegments.erase(segment);
601 segment=fSegments.begin();
604 // cleanup raw buffer
606 ReleaseRawBuffer(pBuffer);
611 int AliHLTDataBuffer::Reset()
613 // see header file for function documentation
614 return ResetDataBuffer();
617 // this is the version which works on lists of components instead of consumer descriptors
618 // int AliHLTDataBuffer::ChangeConsumerState(AliHLTComponent* pConsumer, AliHLTComponentPList &srcList, AliHLTComponentPList &tgtList)
622 // AliHLTComponentPList::iterator desc=srcList.begin();
623 // while (desc!=srcList.end()) {
624 // if ((*desc)==pConsumer) {
625 // srcList.erase(desc);
626 // tgtList.push_back(pConsumer);
631 // if (desc==srcList.end()) {
632 // HLTError("can not find consumer component %p in list", pConsumer);
636 // HLTError("invalid parameter");
642 int AliHLTDataBuffer::ChangeConsumerState(AliHLTConsumerDescriptor* pDesc, AliHLTConsumerDescriptorPList &srcList, AliHLTConsumerDescriptorPList &tgtList)
644 // see header file for function documentation
647 AliHLTConsumerDescriptorPList::iterator desc=srcList.begin();
648 while (desc!=srcList.end()) {
649 if ((*desc)==pDesc) {
651 tgtList.push_back(pDesc);
658 HLTError("can not find consumer descriptor %p in list", pDesc);
661 HLTError("invalid parameter");
667 int AliHLTDataBuffer::CleanupConsumerList()
669 // see header file for function documentation
672 AliHLTConsumerDescriptorPList::iterator desc=fConsumers.begin();
673 while (desc!=fConsumers.end()) {
675 fConsumers.erase(desc);
676 desc=fConsumers.begin();
681 int AliHLTDataBuffer::FindConsumer(const AliHLTComponent* pConsumer, int bAllLists)
683 // see header file for function documentation
684 AliHLTConsumerDescriptorPList::iterator desc=fConsumers.begin();
685 while (desc!=fConsumers.end()) {
686 if ((*desc)->GetComponent()==pConsumer)
690 if (bAllLists==0) return 0;
692 desc=fActiveConsumers.begin();
693 while (desc!=fActiveConsumers.end()) {
694 if ((*desc)->GetComponent()==pConsumer)
698 desc=fReleasedConsumers.begin();
699 while (desc!=fReleasedConsumers.end()) {
700 if ((*desc)->GetComponent()==pConsumer)
707 AliHLTDataBuffer::AliHLTRawBuffer::AliHLTRawBuffer(AliHLTUInt32_t size)
711 fPtr(static_cast<AliHLTUInt8_t*>(malloc(size)))
713 // see header file for class documentation
715 // refer to README to build package
717 // visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
724 AliHLTDataBuffer::AliHLTRawBuffer::~AliHLTRawBuffer()
734 int AliHLTDataBuffer::AliHLTRawBuffer::operator==(void* ptr) const
736 // see header file for function documentation
737 return fPtr == static_cast<AliHLTUInt8_t*>(ptr);
740 int AliHLTDataBuffer::AliHLTRawBuffer::operator<=(void* ptr) const
742 // see header file for function documentation
743 int iResult=fPtr <= static_cast<AliHLTUInt8_t*>(ptr);
744 //printf("%p: %p <= %p (%d)\n", this, fPtr, ptr, iResult);
748 int AliHLTDataBuffer::AliHLTRawBuffer::operator>(void* ptr) const
750 // see header file for function documentation
751 int iResult=fPtr+fSize > static_cast<AliHLTUInt8_t*>(ptr);
752 //printf("%p: %p + %d > %p (%d)\n", this, fPtr, fSize, ptr, iResult);
756 int AliHLTDataBuffer::AliHLTRawBuffer::operator-(void* ptr) const
758 // see header file for function documentation
759 return static_cast<int>(static_cast<AliHLTUInt8_t*>(ptr)-fPtr);
762 AliHLTUInt8_t* AliHLTDataBuffer::AliHLTRawBuffer::UseBuffer(AliHLTUInt32_t size)
764 // see header file for function documentation
765 if (size>0 && fTotalSize>=size) {
772 int AliHLTDataBuffer::AliHLTRawBuffer::CheckSize(AliHLTUInt32_t size) const
774 // see header file for function documentation
775 return fTotalSize>=size && ((fTotalSize-size)<fgMargin);
778 int AliHLTDataBuffer::AliHLTRawBuffer::Reset()
780 // see header file for function documentation
785 int AliHLTDataBuffer::AliHLTRawBuffer::WritePattern(const char* pattern, int size)
787 // see header file for function documentation
789 if (pattern!=NULL && size>0) {
790 if (fSize+size<=fTotalSize) {
791 memcpy(((char*)fPtr)+fSize, pattern, size);
800 int AliHLTDataBuffer::AliHLTRawBuffer::CheckPattern(const char* pattern, int size) const
802 // see header file for function documentation
804 if (pattern!=NULL && size>0) {
805 if (fSize+size<=fTotalSize) {
806 iResult=memcmp(((char*)fPtr)+fSize, pattern, size)!=0;