UserRangePartitioner.cs System::Collections::Concurrent::Partitioners::UserRangePartitioner System::Collections::Concurrent::Partitioners::UserLongRangePartitioner System System::Collections System::Collections::Concurrent System::Collections::Concurrent::Partitioners // //UserRangePartitioner.cs // //Author: //Jérémie"Garuma"Laval<jeremie.laval@gmail.com> // //Copyright(c)2010Jérémie"Garuma"Laval // //Permissionisherebygranted,freeofcharge,toanypersonobtainingacopy //ofthissoftwareandassociateddocumentationfiles(the"Software"),todeal //intheSoftwarewithoutrestriction,includingwithoutlimitationtherights //touse,copy,modify,merge,publish,distribute,sublicense,and/orsell //copiesoftheSoftware,andtopermitpersonstowhomtheSoftwareis //furnishedtodoso,subjecttothefollowingconditions: // //Theabovecopyrightnoticeandthispermissionnoticeshallbeincludedin //allcopiesorsubstantialportionsoftheSoftware. // //THESOFTWAREISPROVIDED"ASIS",WITHOUTWARRANTYOFANYKIND,EXPRESSOR //IMPLIED,INCLUDINGBUTNOTLIMITEDTOTHEWARRANTIESOFMERCHANTABILITY, //FITNESSFORAPARTICULARPURPOSEANDNONINFRINGEMENT.INNOEVENTSHALLTHE //AUTHORSORCOPYRIGHTHOLDERSBELIABLEFORANYCLAIM,DAMAGESOROTHER //LIABILITY,WHETHERINANACTIONOFCONTRACT,TORTOROTHERWISE,ARISINGFROM, //OUTOFORINCONNECTIONWITHTHESOFTWAREORTHEUSEOROTHERDEALINGSIN //THESOFTWARE. #ifNET_4_0||UNITY_5_3_OR_NEWER usingSystem; usingSystem.Threading; usingSystem.Collections.Generic; namespaceSystem.Collections.Concurrent.Partitioners { internalclassUserRangePartitioner:OrderablePartitioner<Tuple<int,int>> { readonlyintstart; readonlyintend; readonlyintrangeSize; publicUserRangePartitioner(intstart,intend,intrangeSize):base(true,true,true) { this.start=start; this.end=end; this.rangeSize=rangeSize; } publicoverrideIList<IEnumerator<KeyValuePair<long,Tuple<int,int>>>>GetOrderablePartitions(intpartitionCount) { if(partitionCount<=0) thrownewArgumentOutOfRangeException("partitionCount"); intcurrentIndex=0; Func<int>getNextIndex=()=>Interlocked.Increment(refcurrentIndex)-1; varenumerators=newIEnumerator<KeyValuePair<long,Tuple<int,int>>>[partitionCount]; for(inti=0;i<partitionCount;i++) enumerators[i]=GetEnumerator(getNextIndex); returnenumerators; } IEnumerator<KeyValuePair<long,Tuple<int,int>>>GetEnumerator(Func<int>getNextIndex) { while(true){ intindex=getNextIndex(); intsliceStart=index*rangeSize+start; if(sliceStart>=end) break; yieldreturnnewKeyValuePair<long,Tuple<int,int>>(index,Tuple.Create(sliceStart,Math.Min(end,sliceStart+rangeSize))); sliceStart+=rangeSize; } } } internalclassUserLongRangePartitioner:OrderablePartitioner<Tuple<long,long>> { readonlylongstart; readonlylongend; readonlylongrangeSize; publicUserLongRangePartitioner(longstart,longend,longrangeSize):base(true,true,true) { this.start=start; this.end=end; this.rangeSize=rangeSize; } publicoverrideIList<IEnumerator<KeyValuePair<long,Tuple<long,long>>>>GetOrderablePartitions(intpartitionCount) { if(partitionCount<=0) thrownewArgumentOutOfRangeException("partitionCount"); longcurrentIndex=0; Func<long>getNextIndex=()=>Interlocked.Increment(refcurrentIndex)-1; varenumerators=newIEnumerator<KeyValuePair<long,Tuple<long,long>>>[partitionCount]; for(inti=0;i<partitionCount;i++) enumerators[i]=GetEnumerator(getNextIndex); returnenumerators; } IEnumerator<KeyValuePair<long,Tuple<long,long>>>GetEnumerator(Func<long>getNextIndex) { while(true){ longindex=getNextIndex(); longsliceStart=index*rangeSize+start; if(sliceStart>=end) break; yieldreturnnewKeyValuePair<long,Tuple<long,long>>(index,Tuple.Create(sliceStart,Math.Min(end,sliceStart+rangeSize))); sliceStart+=rangeSize; } } } } #endif