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PasMP.pas
10884 lines (10064 loc) · 335 KB
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PasMP.pas
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(******************************************************************************
* PasMP *
******************************************************************************
* Version 2016-03-24-01-48-0000 *
******************************************************************************
* zlib license *
*============================================================================*
* *
* Copyright (C) 2016, Benjamin Rosseaux (benjamin@rosseaux.de) *
* *
* This software is provided 'as-is', without any express or implied *
* warranty. In no event will the authors be held liable for any damages *
* arising from the use of this software. *
* *
* Permission is granted to anyone to use this software for any purpose, *
* including commercial applications, and to alter it and redistribute it *
* freely, subject to the following restrictions: *
* *
* 1. The origin of this software must not be misrepresented; you must not *
* claim that you wrote the original software. If you use this software *
* in a product, an acknowledgement in the product documentation would be *
* appreciated but is not required. *
* 2. Altered source versions must be plainly marked as such, and must not be *
* misrepresented as being the original software. *
* 3. This notice may not be removed or altered from any source distribution. *
* *
******************************************************************************
* General guidelines for code contributors *
*============================================================================*
* *
* 1. Make sure you are legally allowed to make a contribution under the zlib *
* license. *
* 2. The zlib license header goes at the top of each source file, with *
* appropriate copyright notice. *
* 3. After a pull request, check the status of your pull request on *
http://github.com/BeRo1985/pasmp *
* 4. Write code, which is compatible with Delphi 7-XE7 and FreePascal >= 2.6 *
* so don't use generics/templates, operator overloading and another newer *
* syntax features than Delphi 7 has support for that, but if needed, make *
* it out-ifdef-able. *
* 5. Don't use Delphi-only, FreePascal-only or Lazarus-only libraries/units, *
* but if needed, make it out-ifdef-able. *
* 6. No use of third-party libraries/units as possible, but if needed, make *
* it out-ifdef-able. *
* 7. Try to use const when possible. *
* 8. Make sure to comment out writeln, used while debugging. *
* 9. Make sure the code compiles on 32-bit and 64-bit platforms (x86-32, *
* x86-64, ARM, ARM64, etc.). *
* 10. Make sure the code runs on platforms with weak and strong memory *
* models without any issues. *
* *
******************************************************************************)
unit PasMP;
{$ifdef fpc}
{$mode delphi}
{$ifdef CPUi386}
{$define CPU386}
{$endif}
{$ifdef CPUamd64}
{$define CPUx86_64}
{$endif}
{$ifdef CPU386}
{$define CPUx86}
{$define CPU32}
{$asmmode intel}
{$endif}
{$ifdef CPUx86_64}
{$define CPUx64}
{$define CPU64}
{$asmmode intel}
{$endif}
{$ifdef FPC_LITTLE_ENDIAN}
{$define LITTLE_ENDIAN}
{$else}
{$ifdef FPC_BIG_ENDIAN}
{$define BIG_ENDIAN}
{$endif}
{$endif}
{-$pic off}
{$define CAN_INLINE}
{$ifdef FPC_HAS_TYPE_EXTENDED}
{$define HAS_TYPE_EXTENDED}
{$else}
{$undef HAS_TYPE_EXTENDED}
{$endif}
{$ifdef FPC_HAS_TYPE_DOUBLE}
{$define HAS_TYPE_DOUBLE}
{$else}
{$undef HAS_TYPE_DOUBLE}
{$endif}
{$ifdef FPC_HAS_TYPE_SINGLE}
{$define HAS_TYPE_SINGLE}
{$else}
{$undef HAS_TYPE_SINGLE}
{$endif}
{$if declared(RawByteString)}
{$define HAS_TYPE_RAWBYTESTRING}
{$else}
{$undef HAS_TYPE_RAWBYTESTRING}
{$ifend}
{$if declared(UTF8String)}
{$define HAS_TYPE_UTF8STRING}
{$else}
{$undef HAS_TYPE_UTF8STRING}
{$ifend}
{$define HAS_GENERICS}
{$define HAS_STATIC}
{$else}
{$realcompatibility off}
{$localsymbols on}
{$define LITTLE_ENDIAN}
{$ifndef CPU64}
{$define CPU32}
{$endif}
{$ifdef CPUx64}
{$define CPUx86_64}
{$define CPU64}
{$else}
{$ifdef CPU386}
{$define CPUx86}
{$define CPU32}
{$endif}
{$endif}
{$define HAS_TYPE_EXTENDED}
{$define HAS_TYPE_DOUBLE}
{$ifdef conditionalexpressions}
{$if declared(RawByteString)}
{$define HAS_TYPE_RAWBYTESTRING}
{$else}
{$undef HAS_TYPE_RAWBYTESTRING}
{$ifend}
{$if declared(UTF8String)}
{$define HAS_TYPE_UTF8STRING}
{$else}
{$undef HAS_TYPE_UTF8STRING}
{$ifend}
{$else}
{$undef HAS_TYPE_RAWBYTESTRING}
{$undef HAS_TYPE_UTF8STRING}
{$endif}
{$if CompilerVersion>=24}
{$legacyifend on}
{$define HAS_ATOMICS}
{$ifend}
{$if CompilerVersion>=20}
{$define CAN_INLINE}
{$define HAS_ANONYMOUS_METHODS}
{$define HAS_GENERICS}
{$define HAS_STATIC}
{$ifend}
{$if CompilerVersion>=25}
{$define HAS_WEAK}
{$define HAS_VOLATILE}
{$define HAS_REF}
{$ifend}
{$endif}
{$ifdef CPU386}
{$define HAS_DOUBLE_NATIVE_MACHINE_WORD_ATOMIC_COMPARE_EXCHANGE}
{$endif}
{$ifdef CPUx86_64}
{$define HAS_DOUBLE_NATIVE_MACHINE_WORD_ATOMIC_COMPARE_EXCHANGE}
{$endif}
{$ifdef CPUARM}
{$define HAS_DOUBLE_NATIVE_MACHINE_WORD_ATOMIC_COMPARE_EXCHANGE}
{$endif}
{$ifdef Win32}
{$define Windows}
{$endif}
{$ifdef Win64}
{$define Windows}
{$endif}
{$ifdef WinCE}
{$define Windows}
{$endif}
{$rangechecks off}
{$extendedsyntax on}
{$writeableconst on}
{$hints off}
{$booleval off}
{$typedaddress off}
{$stackframes off}
{$varstringchecks on}
{$typeinfo on}
{$overflowchecks off}
{$longstrings on}
{$openstrings on}
{$undef UseXorShift128}
{$undef UseThreadLocalStorage}
{$undef UseThreadLocalStorageX8632}
{$ifdef PasMPUseAsStrictSingletonInstance}
{$if defined(Windows) and (defined(CPU386) or defined(CPUx86_64)) and not (defined(FPC) or defined(UseMultiplePasMPInstanceInstances))}
// Delphi (under x86 Windows) has fast thread local storage handling (per nearly direct TEB access by reading fs:[0x18])
{$define UseThreadLocalStorage}
{$ifdef cpu386}
{$define UseThreadLocalStorageX8632}
{$endif}
{$ifdef cpux86_64}
{$define UseThreadLocalStorageX8664}
{$endif}
{$else}
// FreePascal has portable but unfortunately slow thread local storage handling (for example under Windows, over TLSGetIndex
// calls etc. in FPC_THREADVAR_RELOCATE), so use here the bit faster thread ID hash table approach with less total CPU-cycle
// count and less OS-API calls than with the FPC_THREADVAR_RELOCATE variant
{$ifend}
{$endif}
{$define PasMPUseWakeUpConditionVariable}
interface
uses {$ifdef Windows}
Windows,MMSystem,
{$else}
{$ifdef fpc}
{$ifdef Unix}
{$ifdef usecthreads}
cthreads,
{$endif}
BaseUnix,Unix,UnixType,PThreads,
{$ifdef Linux}
Linux,
{$else}
ctypes,sysctl,
{$endif}
{$endif}
{$endif}
{$endif}
SysUtils,Classes,
{$ifdef HAS_GENERICS}
{$ifdef fpc}
{$ifdef FreePascalGenericsCollectionsLibrary}
Generics.Defaults,
{$define HasGenericsCollections}
{$endif}
{$else}
System.Generics.Defaults,
{$define HasGenericsCollections}
{$endif}
{$endif}
Math,SyncObjs;
type PPasMPInt8=^TPasMPInt8;
TPasMPInt8=shortint;
PPasMPUInt8=^TPasMPUInt8;
TPasMPUInt8=byte;
PPasMPInt16=^TPasMPInt16;
TPasMPInt16=smallint;
PPasMPUInt16=^TPasMPUInt16;
TPasMPUInt16=word;
PPasMPInt32=^TPasMPInt32;
TPasMPInt32=longint;
PPasMPUInt32=^TPasMPUInt32;
TPasMPUInt32=longword;
PPasMPInt64=^TPasMPInt64;
TPasMPInt64=int64;
PPasMPUInt64=^TPasMPUInt64;
PPasMPPtrUInt=^TPasMPPtrUInt;
PPasMPPtrInt=^TPasMPPtrInt;
{$ifdef fpc}
{$undef OldDelphi}
TPasMPUInt64=uint64;
TPasMPPtrUInt=PtrUInt;
TPasMPPtrInt=PtrInt;
{$else}
{$ifdef conditionalexpressions}
{$if CompilerVersion>=23.0}
{$undef OldDelphi}
TPasMPUInt64=uint64;
TPasMPPtrUInt=NativeUInt;
TPasMPPtrInt=NativeInt;
{$else}
{$define OldDelphi}
{$ifend}
{$else}
{$define OldDelphi}
{$endif}
{$endif}
{$ifdef OldDelphi}
{$if CompilerVersion>=15.0}
TPasMPUInt64=uint64;
{$else}
TPasMPUInt64=TPasMPInt64;
{$ifend}
{$ifdef CPU64}
TPasMPPtrUInt=qword;
TPasMPPtrInt=TPasMPInt64;
{$else}
TPasMPPtrUInt=TPasMPUInt32;
TPasMPPtrInt=TPasMPInt32;
{$endif}
{$endif}
const PasMPAllocatorPoolBucketBits=12;
PasMPAllocatorPoolBucketSize=1 shl PasMPAllocatorPoolBucketBits;
PasMPAllocatorPoolBucketMask=PasMPAllocatorPoolBucketSize-1;
PasMPJobQueueStartSize=4096; // must be power of two
PasMPJobWorkerThreadHashTableSize=4096;
PasMPJobWorkerThreadHashTableMask=PasMPJobWorkerThreadHashTableSize-1;
PasMPDefaultDepth=16;
PasMPJobThreadIndexBits=16;
PasMPJobThreadIndexSize=TPasMPUInt32(TPasMPUInt32(1) shl PasMPJobThreadIndexBits);
PasMPJobThreadIndexMask=PasMPJobThreadIndexSize-1;
PasMPJobFlagHasOwnerWorkerThread=TPasMPUInt32(TPasMPUInt32(1) shl (PasMPJobThreadIndexBits+1));
PasMPJobFlagReleaseOnFinish=TPasMPUInt32(TPasMPUInt32(1) shl (PasMPJobThreadIndexBits+2));
PasMPCPUCacheLineSize=64;
PasMPOnceInit={$ifdef Linux}PTHREAD_ONCE_INIT{$else}0{$endif};
PasMPVersionMajor=1000000;
PasMPVersionMinor=1000;
PasMPVersionRelease=1;
{$ifndef FPC}
// Delphi evaluates every $IF-directive even if it is disabled by a surrounding, so it's then a error in Delphi, and for to avoid it, we define dummys here.
FPC_VERSION=0;
FPC_RELEASE=0;
FPC_PATCH=0;
FPC_FULLVERSION=(FPC_VERSION*10000)+(FPC_RELEASE*100)+(FPC_PATCH*1);
{$endif}
// FPC_VERSION_PASMP=(FPC_VERSION*PasMPVersionMajor)+(FPC_RELEASE*PasMPVersionMinor)+(FPC_PATCH*PasMPVersionRelease);
{$ifndef Windows}
{$ifndef fpc}
INFINITE=TPasMPUInt32(-1);
{$endif}
{$endif}
PasMPThreadSafeDynamicArrayFirstBucketBits=3;
PasMPThreadSafeDynamicArrayFirstBucketSize=1 shl PasMPThreadSafeDynamicArrayFirstBucketBits;
PasMPThreadSafeDynamicArrayNumberOfBuckets=30;
PasMPThreadSafeDynamicArrayMarkFirstBit=TPasMPUInt32($80000000);
PasMPCLZDebruijn32Multiplicator=TPasMPUInt32($07c4acdd);
PasMPCLZDebruijn32Shift=27;
PasMPCLZDebruijn32Mask=31;
PasMPCLZDebruijn32Table:array[0..31] of TPasMPInt32=(31,22,30,21,18,10,29,2,20,17,15,13,9,6,28,1,23,19,11,3,16,14,7,24,12,4,8,25,5,26,27,0);
PasMPCLZDebruijn64Multiplicator:TPasMPUInt64=TPasMPUInt64($03f79d71b4cb0a89);
PasMPCLZDebruijn64Shift=58;
PasMPCLZDebruijn64Mask=63;
PasMPCLZDebruijn64Table:array[0..63] of TPasMPInt32=(63,16,62,7,15,36,61,3,6,14,22,26,35,47,60,2,9,5,28,11,13,21,42,19,25,31,34,40,46,52,59,1,
17,8,37,4,23,27,48,10,29,12,43,20,32,41,53,18,38,24,49,30,44,33,54,39,50,45,55,51,56,57,58,0);
PasMPCTZDebruijn32Multiplicator=TPasMPUInt32($077cb531);
PasMPCTZDebruijn32Shift=27;
PasMPCTZDebruijn32Mask=31;
PasMPCTZDebruijn32Table:array[0..31] of TPasMPInt32=(0,1,28,2,29,14,24,3,30,22,20,15,25,17,4,8,31,27,13,23,21,19,16,7,26,12,18,6,11,5,10,9);
PasMPCTZDebruijn64Multiplicator:TPasMPUInt64=TPasMPUInt64($07edd5e59a4e28c2);
PasMPCTZDebruijn64Shift=58;
PasMPCTZDebruijn64Mask=63;
PasMPCTZDebruijn64Table:array[0..63] of TPasMPInt32=(63,0,58,1,59,47,53,2,60,39,48,27,54,33,42,3,61,51,37,40,49,18,28,20,55,30,34,11,43,14,22,4,
62,57,46,52,38,26,32,41,50,36,17,19,29,10,13,21,56,45,25,31,35,16,9,12,44,24,15,8,23,7,6,5);
PasMPBSFDebruijn32Multiplicator=TPasMPUInt32($077cb531);
PasMPBSFDebruijn32Shift=27;
PasMPBSFDebruijn32Mask=31;
PasMPBSFDebruijn32Table:array[0..31] of TPasMPInt32=(0,1,28,2,29,14,24,3,30,22,20,15,25,17,4,8,31,27,13,23,21,19,16,7,26,12,18,6,11,5,10,9);
PasMPBSFDebruijn64Multiplicator:TPasMPUInt64=TPasMPUInt64($03f79d71b4cb0a89);
PasMPBSFDebruijn64Shift=58;
PasMPBSFDebruijn64Mask=63;
PasMPBSFDebruijn64Table:array[0..63] of TPasMPInt32=(0,1,48,2,57,49,28,3,61,58,50,42,38,29,17,4,62,55,59,36,53,51,43,22,45,39,33,30,24,18,12,5,
63,47,56,27,60,41,37,16,54,35,52,21,44,32,23,11,46,26,40,15,34,20,31,10,25,14,19,9,13,8,7,6);
PasMPBSRDebruijn32Multiplicator=TPasMPUInt32($07c4acdd);
PasMPBSRDebruijn32Shift=27;
PasMPBSRDebruijn32Mask=31;
PasMPBSRDebruijn32Table:array[0..31] of TPasMPInt32=(0,9,1,10,13,21,2,29,11,14,16,18,22,25,3,30,8,12,20,28,15,17,24,7,19,27,23,6,26,5,4,31);
PasMPBSRDebruijn64Multiplicator:TPasMPUInt64=TPasMPUInt64($03f79d71b4cb0a89);
PasMPBSRDebruijn64Shift=58;
PasMPBSRDebruijn64Mask=63;
PasMPBSRDebruijn64Table:array[0..63] of TPasMPInt32=(0,47,1,56,48,27,2,60,57,49,41,37,28,16,3,61,54,58,35,52,50,42,21,44,38,32,29,23,17,11,4,62,
46,55,26,59,40,36,15,53,34,51,20,43,31,22,10,45,25,39,14,33,19,30,9,24,13,18,8,12,7,6,5,63);
type TPasMPAvailableCPUCores=array of TPasMPInt32;
PPasMPInt128Record=^TPasMPInt128Record;
TPasMPInt128Record=record
{$ifdef BIG_ENDIAN}
Hi,Lo:TPasMPUInt64;
{$else}
Lo,Hi:TPasMPUInt64;
{$endif}
end;
PPasMPInt64Record=^TPasMPInt64Record;
TPasMPInt64Record=record
case boolean of
false:(
{$ifdef BIG_ENDIAN}
Hi,Lo:TPasMPUInt32;
{$else}
Lo,Hi:TPasMPUInt32;
{$endif}
);
true:(
Value:TPasMPInt64;
);
end;
PPasMPTaggedPointer=^TPasMPTaggedPointer;
TPasMPTaggedPointer=record
case TPasMPInt32 of
0:(
PointerValue:pointer;
TagValue:TPasMPPtrUInt;
);
1:(
Value:{$ifdef CPU64}TPasMPInt128Record{$else}TPasMPInt64Record{$endif};
);
end;
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
TPasMPMath=class
public
class function PopulationCount32(Value:TPasMPUInt32):TPasMPInt32; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function PopulationCount64(Value:TPasMPUInt64):TPasMPInt32; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function PopulationCount(Value:TPasMPPtrUInt):TPasMPInt32; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function BitScanForward32(Value:TPasMPUInt32):TPasMPInt32; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function BitScanForward64(Value:TPasMPUInt64):TPasMPInt32; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function BitScanForward(Value:TPasMPPtrUInt):TPasMPInt32; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function BitScanReverse32(Value:TPasMPUInt32):TPasMPInt32; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function BitScanReverse64(Value:TPasMPUInt64):TPasMPInt32; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function BitScanReverse(Value:TPasMPPtrUInt):TPasMPInt32; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function CountLeadingZeros32(Value:TPasMPUInt32):TPasMPInt32; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function CountLeadingZeros64(Value:TPasMPUInt64):TPasMPInt32; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function CountLeadingZeros(Value:TPasMPPtrUInt):TPasMPInt32; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function CountTrailingZeros32(Value:TPasMPUInt32):TPasMPInt32; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function CountTrailingZeros64(Value:TPasMPUInt64):TPasMPInt32; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function CountTrailingZeros(Value:TPasMPPtrUInt):TPasMPInt32; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function RoundUpToPowerOfTwo32(Value:TPasMPUInt32):TPasMPUInt32; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function RoundUpToPowerOfTwo64(Value:TPasMPUInt64):TPasMPUInt64; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function RoundUpToPowerOfTwo(Value:TPasMPPtrUInt):TPasMPPtrUInt; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function RoundUpToMask32(Value,Mask:TPasMPUInt32):TPasMPUInt32; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function RoundUpToMask64(Value,Mask:TPasMPUInt64):TPasMPUInt64; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class function RoundUpToMask(Value,Mask:TPasMPPtrUInt):TPasMPPtrUInt; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
end;
{$if defined(fpc) and (fpc_version>=3)}{$pop}{$ifend}
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
TPasMPInterlocked=class
public
class function Increment(var Destination:TPasMPInt32):TPasMPInt32; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
{$ifdef CPU64}
class function Increment(var Destination:TPasMPInt64):TPasMPInt64; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
{$endif}
class function Decrement(var Destination:TPasMPInt32):TPasMPInt32; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
{$ifdef CPU64}
class function Decrement(var Destination:TPasMPInt64):TPasMPInt64; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
{$endif}
class function Add(var Destination:TPasMPInt32;const Value:TPasMPInt32):TPasMPInt32; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
{$ifdef CPU64}
class function Add(var Destination:TPasMPInt64;const Value:TPasMPInt64):TPasMPInt64; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
{$endif}
class function Sub(var Destination:TPasMPInt32;const Value:TPasMPInt32):TPasMPInt32; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
{$ifdef CPU64}
class function Sub(var Destination:TPasMPInt64;const Value:TPasMPInt64):TPasMPInt64; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
{$endif}
class function Exchange(var Destination:TPasMPInt32;const Source:TPasMPInt32):TPasMPInt32; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
class function Exchange(var Destination:TPasMPUInt32;const Source:TPasMPUInt32):TPasMPUInt32; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
{$ifdef CPU64}
class function Exchange(var Destination:TPasMPInt64;const Source:TPasMPInt64):TPasMPInt64; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
class function Exchange(var Destination:TPasMPUInt64;const Source:TPasMPUInt64):TPasMPUInt64; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
{$endif}
class function Exchange(var Destination:pointer;const Source:pointer):pointer; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
class function Exchange(var Destination:TObject;const Source:TObject):TObject; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
class function CompareExchange(var Destination:TPasMPInt32;const NewValue,Comperand:TPasMPInt32):TPasMPInt32; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
class function CompareExchange(var Destination:TPasMPUInt32;const NewValue,Comperand:TPasMPUInt32):TPasMPUInt32; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
{$if defined(CPU64) or defined(CPU386) or defined(CPUARM)}
class function CompareExchange(var Destination:TPasMPInt64;const NewValue,Comperand:TPasMPInt64):TPasMPInt64; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
class function CompareExchange(var Destination:TPasMPInt64Record;const NewValue,Comperand:TPasMPInt64Record):TPasMPInt64Record; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
class function CompareExchange(var Destination:TPasMPUInt64;const NewValue,Comperand:TPasMPUInt64):TPasMPUInt64; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
{$ifend}
{$if defined(CPU64) and defined(HAS_DOUBLE_NATIVE_MACHINE_WORD_ATOMIC_COMPARE_EXCHANGE)}
class function CompareExchange(var Destination:TPasMPInt128Record;const NewValue,Comperand:TPasMPInt128Record):TPasMPInt128Record; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(fpc)}inline;{$ifend}
{$ifend}
class function CompareExchange(var Destination:pointer;const NewValue,Comperand:pointer):pointer; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
class function CompareExchange(var Destination:TObject;const NewValue,Comperand:TObject):TObject; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
class function Read(var Source:TPasMPInt32):TPasMPInt32; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
{$if defined(CPU64) or defined(CPU386) or defined(CPUARM)}
class function Read(var Source:TPasMPInt64):TPasMPInt64; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
class function Read(var Source:TPasMPInt64Record):TPasMPInt64Record; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
{$if defined(CPU64) and defined(HAS_DOUBLE_NATIVE_MACHINE_WORD_ATOMIC_COMPARE_EXCHANGE)}
class function Read(var Source:TPasMPInt128Record):TPasMPInt128Record; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(fpc)}inline;{$ifend}
{$ifend}
class function Read(var Source:pointer):pointer; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
{$ifend}
class function Write(var Destination:TPasMPInt32;const Source:TPasMPInt32):TPasMPInt32; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
{$if defined(CPU64) or defined(CPU386) or defined(CPUARM)}
class function Write(var Destination:TPasMPInt64;const Source:TPasMPInt64):TPasMPInt64; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
class function Write(var Destination:TPasMPInt64Record;const Source:TPasMPInt64Record):TPasMPInt64Record; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
{$if defined(CPU64) and defined(HAS_DOUBLE_NATIVE_MACHINE_WORD_ATOMIC_COMPARE_EXCHANGE)}
class function Write(var Destination:TPasMPInt128Record;const Source:TPasMPInt128Record):TPasMPInt128Record; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(fpc)}inline;{$ifend}
{$ifend}
{$ifend}
class function Write(var Destination:pointer;const Source:pointer):pointer; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
end;
{$if defined(fpc) and (fpc_version>=3)}{$pop}{$ifend}
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
TPasMPAtomic=class(TPasMPInterlocked);
{$if defined(fpc) and (fpc_version>=3)}{$pop}{$ifend}
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
TPasMPMemoryBarrier=class
public
class procedure Read; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class procedure ReadDependency; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class procedure ReadWrite; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class procedure Write; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
class procedure Sync; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
end;
{$if defined(fpc) and (fpc_version>=3)}{$pop}{$ifend}
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
TPasMPMemory=class
public
class procedure AllocateAlignedMemory(var p;Size:TPasMPInt32;Align:TPasMPInt32=PasMPCPUCacheLineSize); {$ifdef HAS_STATIC}static;{$endif}
class procedure FreeAlignedMemory(const p); {$ifdef HAS_STATIC}static;{$endif}
class procedure Barrier; {$ifdef HAS_STATIC}static;{$endif}{$ifdef CAN_INLINE}inline;{$endif}
end;
{$if defined(fpc) and (fpc_version>=3)}{$pop}{$ifend}
TPasMP=class;
PPasMPOnce=^TPasMPOnce;
TPasMPOnce={$ifdef Linux}pthread_once_t{$else}TPasMPInt32{$endif};
TPasMPOnceInitRoutine={$ifdef fpc}TProcedure{$else}procedure{$endif};
TPasMPEvent=class(TEvent);
TPasMPSimpleEvent=class(TPasMPEvent)
public
constructor Create;
end;
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
TPasMPCriticalSection=class(TCriticalSection)
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-SizeOf(TRTLCriticalSection))-1] of TPasMPUInt8;
end;
{$if defined(fpc) and (fpc_version>=3)}{$pop}{$ifend}
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
TPasMPMutex=class(TSynchroObject)
{$ifdef Windows}
private
fMutex:THandle;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-SizeOf(TRTLCriticalSection))-1] of TPasMPUInt8;
{$else}
{$ifdef Unix}
private
fMutex:pthread_mutex_t;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-SizeOf(pthread_mutex_t))-1] of TPasMPUInt8;
{$else}
private
fCriticalSection:TPasMPCriticalSection;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-SizeOf(TPasMPCriticalSection))-1] of TPasMPUInt8;
{$endif}
{$endif}
public
constructor Create; overload;
{$ifdef Unix}
constructor Create(const lpMutexAttributes:pointer); overload;
{$endif}
{$ifdef Windows}
constructor Create(const lpMutexAttributes:pointer;const bInitialOwner:boolean;const lpName:string); overload;
constructor Create(const DesiredAccess:TPasMPUInt32;const bInitialOwner:boolean;const lpName:string); overload;
{$endif}
destructor Destroy; override;
procedure Acquire; override;
procedure Release; override;
{$ifdef Windows}
property Mutex:THandle read fMutex;
{$else}
{$ifdef Unix}
property Mutex:pthread_mutex_t read fMutex;
{$else}
property CriticalSection:TPasMPCriticalSection read fCriticalSection;
{$endif}
{$endif}
end;
{$if defined(fpc) and (fpc_version>=3)}{$pop}{$ifend}
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
TPasMPConditionVariableLock=class(TSynchroObject)
{$ifdef Windows}
private
fCriticalSection:TRTLCriticalSection;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-SizeOf(TRTLCriticalSection))-1] of TPasMPUInt8;
{$else}
{$ifdef Unix}
private
fMutex:pthread_mutex_t;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-SizeOf(pthread_mutex_t))-1] of TPasMPUInt8;
{$else}
private
fCriticalSection:TPasMPCriticalSection;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-SizeOf(TPasMPCriticalSection))-1] of TPasMPUInt8;
{$endif}
{$endif}
public
constructor Create;
destructor Destroy; override;
procedure Acquire; override;
procedure Release; override;
end;
{$if defined(fpc) and (fpc_version>=3)}{$pop}{$ifend}
{$ifdef Windows}
PPasMPConditionVariableData=^TPasMPConditionVariableData;
TPasMPConditionVariableData=pointer;
{$endif}
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
TPasMPConditionVariable=class
{$ifdef Windows}
private
fConditionVariable:TPasMPConditionVariableData;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-SizeOf(TPasMPConditionVariableData))-1] of TPasMPUInt8;
{$else}
{$ifdef unix}
private
fConditionVariable:pthread_cond_t;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-SizeOf(pthread_cond_t))-1] of TPasMPUInt8;
{$else}
private
{$ifdef HAS_VOLATILE}[volatile]{$endif}fWaitCounter:TPasMPInt32;
{$ifdef HAS_VOLATILE}[volatile]{$endif}fReleaseCounter:TPasMPInt32;
{$ifdef HAS_VOLATILE}[volatile]{$endif}fGenerationCounter:TPasMPInt32;
fCriticalSection:TPasMPCriticalSection;
fEvent:TPasMPEvent;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-((SizeOf(TPasMPInt32)*3)+SizeOf(TPasMPCriticalSection)+SizeOf(TPasMPEvent)))-1] of TPasMPUInt8;
{$endif}
{$endif}
public
constructor Create;
destructor Destroy; override;
procedure Signal; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
procedure Broadcast; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
function Wait(const Lock:TPasMPConditionVariableLock;const dwMilliSeconds:TPasMPUInt32=INFINITE):TWaitResult; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
end;
{$if defined(fpc) and (fpc_version>=3)}{$pop}{$ifend}
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
TPasMPSemaphore=class(TSynchroObject)
private
fInitialCount:TPasMPInt32;
fMaximumCount:TPasMPInt32;
{$ifdef Windows}
fHandle:THandle;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-((SizeOf(TPasMPInt32)*2)+SizeOf(THandle)))-1] of TPasMPUInt8;
{$else}
{$ifdef unix}
fHandle:TPasMPInt32;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-(SizeOf(TPasMPInt32)*3))-1] of TPasMPUInt8;
{$else}
{$define PasMPSemaphoreUseConditionVariable}
{$ifdef HAS_VOLATILE}[volatile]{$endif}fCurrentCount:TPasMPInt32;
{$ifdef PasMPSemaphoreUseConditionVariable}
fConditionVariableLock:TPasMPConditionVariableLock;
fConditionVariable:TPasMPConditionVariable;
{$else}
fCriticalSection:TPasMPCriticalSection;
fEvent:TPasMPEvent;
{$endif}
protected
{$ifdef PasMPSemaphoreUseConditionVariable}
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-((SizeOf(TPasMPInt32)*3)+SizeOf(TPasMPConditionVariableLock)+SizeOf(TPasMPConditionVariable)))-1] of TPasMPUInt8;
{$else}
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-((SizeOf(TPasMPInt32)*3)+SizeOf(TPasMPCriticalSection)+SizeOf(TPasMPEvent)))-1] of TPasMPUInt8;
{$endif}
{$endif}
{$endif}
public
constructor Create(const InitialCount,MaximumCount:TPasMPInt32);
destructor Destroy; override;
procedure Acquire; overload; override;
procedure Release; overload; override;
function Acquire(const AcquireCount:TPasMPInt32):TWaitResult; reintroduce; overload;
function Release(const ReleaseCount:TPasMPInt32):TPasMPInt32; reintroduce; overload;
end;
{$if defined(fpc) and (fpc_version>=3)}{$pop}{$ifend}
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
TPasMPInvertedSemaphore=class(TSynchroObject)
private
fInitialCount:TPasMPInt32;
fMaximumCount:TPasMPInt32;
{$ifdef HAS_VOLATILE}[volatile]{$endif}fCurrentCount:TPasMPInt32;
fConditionVariableLock:TPasMPConditionVariableLock;
fConditionVariable:TPasMPConditionVariable;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-((SizeOf(TPasMPInt32)*3)+SizeOf(TPasMPConditionVariableLock)+SizeOf(TPasMPConditionVariable)))-1] of TPasMPUInt8;
public
constructor Create(const InitialCount,MaximumCount:TPasMPInt32);
destructor Destroy; override;
procedure Acquire; overload; override; // Acquire a number of resource elements. It never blocks.
procedure Release; overload; override; // Release a number of resource elements. It never blocks, but it may wake up waiting threads.
function Acquire(const AcquireCount:TPasMPInt32;out Count:TPasMPInt32):TPasMPInt32; reintroduce; overload;
function Release(const ReleaseCount:TPasMPInt32;out Count:TPasMPInt32):TPasMPInt32; reintroduce; overload;
function Wait(const dwMilliSeconds:TPasMPUInt32=INFINITE):TWaitResult; // Block until the inverted semaphore reaches zero
end;
{$if defined(fpc) and (fpc_version>=3)}{$pop}{$ifend}
{$ifdef Windows}
PPasMPSRWLock=^TPasMPSRWLock;
TPasMPSRWLock=pointer;
{$endif}
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
TPasMPMultipleReaderSingleWriterLock=class(TInterfacedObject,IReadWriteSync)
{$ifdef Windows}
private
fSRWLock:TPasMPSRWLock;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-SizeOf(TPasMPSRWLock))-1] of TPasMPUInt8;
{$else}
{$ifdef unix}
private
fReadWriteLock:pthread_rwlock_t;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-SizeOf(pthread_rwlock_t))-1] of TPasMPUInt8;
{$else}
private
{$ifdef HAS_VOLATILE}[volatile]{$endif}fReaders:TPasMPInt32;
{$ifdef HAS_VOLATILE}[volatile]{$endif}fWriters:TPasMPInt32;
fConditionVariableLock:TPasMPConditionVariableLock;
fConditionVariable:TPasMPConditionVariable;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-((SizeOf(TPasMPInt32)*2)+SizeOf(TPasMPConditionVariableLock)+SizeOf(TPasMPConditionVariable)))-1] of TPasMPUInt8;
{$endif}
{$endif}
public
constructor Create;
destructor Destroy; override;
procedure AcquireRead; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
function TryAcquireRead:boolean; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
procedure ReleaseRead; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
procedure AcquireWrite; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
function TryAcquireWrite:boolean; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
procedure ReleaseWrite; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
procedure ReadToWrite; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
procedure WriteToRead; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
procedure BeginRead;
procedure EndRead;
function BeginWrite:boolean;
procedure EndWrite;
end;
{$if defined(fpc) and (fpc_version>=3)}{$pop}{$ifend}
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
TPasMPMultipleReaderSingleWriterSpinLock=class(TInterfacedObject,IReadWriteSync)
private
{$ifdef HAS_VOLATILE}[volatile]{$endif}fState:TPasMPInt32;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-((SizeOf(TPasMPInt32)*2)+SizeOf(TPasMPConditionVariableLock)+SizeOf(TPasMPConditionVariable)))-1] of TPasMPUInt8;
public
constructor Create;
destructor Destroy; override;
procedure AcquireRead; overload; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
function TryAcquireRead:boolean; overload; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
procedure ReleaseRead; overload; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
procedure AcquireWrite; overload; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
function TryAcquireWrite:boolean; overload; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
procedure ReleaseWrite; overload; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
procedure ReadToWrite; overload; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
procedure WriteToRead; overload; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
procedure BeginRead;
procedure EndRead;
function BeginWrite:boolean;
procedure EndWrite;
class procedure AcquireRead(var LockState:TPasMPInt32); overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
class function TryAcquireRead(var LockState:TPasMPInt32):boolean; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
class procedure ReleaseRead(var LockState:TPasMPInt32); overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
class procedure AcquireWrite(var LockState:TPasMPInt32); overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
class function TryAcquireWrite(var LockState:TPasMPInt32):boolean; overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
class procedure ReleaseWrite(var LockState:TPasMPInt32); overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
class procedure ReadToWrite(var LockState:TPasMPInt32); overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
class procedure WriteToRead(var LockState:TPasMPInt32); overload; {$ifdef HAS_STATIC}static;{$endif}{$if defined(HAS_ATOMICS) or defined(fpc)}inline;{$ifend}
end;
{$if defined(fpc) and (fpc_version>=3)}{$pop}{$ifend}
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
TPasMPSlimReaderWriterLock=class(TSynchroObject)
{$ifdef Windows}
private
fSRWLock:TPasMPSRWLock;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-SizeOf(TPasMPSRWLock))-1] of TPasMPUInt8;
{$else}
{$ifdef unix}
private
fReadWriteLock:pthread_rwlock_t;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-SizeOf(pthread_rwlock_t))-1] of TPasMPUInt8;
{$else}
private
{$ifdef HAS_VOLATILE}[volatile]{$endif}fCount:TPasMPInt32;
fConditionVariableLock:TPasMPConditionVariableLock;
fConditionVariable:TPasMPConditionVariable;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-(SizeOf(TPasMPInt32)+SizeOf(TPasMPConditionVariableLock)+SizeOf(TPasMPConditionVariable)))-1] of TPasMPUInt8;
{$endif}
{$endif}
public
constructor Create;
destructor Destroy; override;
procedure Acquire; override;
function TryAcquire:boolean;
procedure Release; override;
end;
{$if defined(fpc) and (fpc_version>=3)}{$pop}{$ifend}
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
TPasMPSpinLock=class(TSynchroObject)
{$ifdef unix}
private
fSpinLock:pthread_spinlock_t;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-SizeOf(pthread_spinlock_t))-1] of TPasMPUInt8;
{$else}
private
{$ifdef HAS_VOLATILE}[volatile]{$endif}fState:TPasMPInt32;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-SizeOf(TPasMPInt32))-1] of TPasMPUInt8;
{$endif}
public
constructor Create;
destructor Destroy; override;
procedure Acquire; override;
function TryAcquire:longbool; {$if not defined(Unix)}{$if defined(cpu386) or defined(cpux86_64)}register;{$else}{$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}{$ifend}{$ifend}
procedure Release; override;
end;
{$if defined(fpc) and (fpc_version>=3)}{$pop}{$ifend}
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
TPasMPBarrier=class
{$ifdef unix}
private
fBarrier:pthread_barrier_t;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-SizeOf(pthread_barrier_t))-1] of TPasMPUInt8;
{$else}
private
{$ifdef HAS_VOLATILE}[volatile]{$endif}fCount:TPasMPInt32;
{$ifdef HAS_VOLATILE}[volatile]{$endif}fTotal:TPasMPInt32;
fConditionVariableLock:TPasMPConditionVariableLock;
fConditionVariable:TPasMPConditionVariable;
protected
fCacheLineFillUp:array[0..(PasMPCPUCacheLineSize-((SizeOf(TPasMPInt32)*2)+SizeOf(TPasMPConditionVariableLock)+SizeOf(TPasMPConditionVariable)))-1] of TPasMPUInt8;
{$endif}
public
constructor Create(const Count:TPasMPInt32);
destructor Destroy; override;
function Wait:boolean; {$ifdef fpc}{$ifdef CAN_INLINE}inline;{$endif}{$endif}
end;
{$if defined(fpc) and (fpc_version>=3)}{$pop}{$ifend}
PPasMPThreadSafeStackEntry=^TPasMPThreadSafeStackEntry;
TPasMPThreadSafeStackEntry=pointer;
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
// The lock-free variant is based on the idea behind the concept of the internal workings of the "Interlocked Singly Linked Lists" Windows API, just stripped by the Depth stuff
// The lock-based variant is based of my head
TPasMPThreadSafeStack=class // only for PasMP internal usage
private
{$ifdef HAS_DOUBLE_NATIVE_MACHINE_WORD_ATOMIC_COMPARE_EXCHANGE}
fHead:PPasMPTaggedPointer;
{$else}
fCriticalSection:TPasMPCriticalSection;
fHead:pointer;
{$endif}
public
constructor Create;
destructor Destroy; override;
procedure Clear; {$ifdef CAN_INLINE}inline;{$endif}
function IsEmpty:boolean; {$ifdef CAN_INLINE}inline;{$endif}
function Push(const Item:pointer):pointer; {$ifdef CAN_INLINE}inline;{$endif}
function Pop:pointer; {$ifdef CAN_INLINE}inline;{$endif}
end;
{$if defined(fpc) and (fpc_version>=3)}{$pop}{$ifend}
PPasMPThreadSafeQueueNode=^TPasMPThreadSafeQueueNode;
TPasMPThreadSafeQueueNode=record
{$ifdef HAS_DOUBLE_NATIVE_MACHINE_WORD_ATOMIC_COMPARE_EXCHANGE}
Previous:TPasMPTaggedPointer;
Next:TPasMPTaggedPointer;
{$else}
Next:pointer;
{$endif}
Data:record
// Empty
end;
end;
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
// The lock-free variant is based on http://people.csail.mit.edu/edya/publications/OptimisticFIFOQueue-journal.pdf
// The lock-based variant is based on the two-lock concurrent queue
TPasMPThreadSafeQueue=class // only for PasMP internal usage
private
{$ifdef HAS_DOUBLE_NATIVE_MACHINE_WORD_ATOMIC_COMPARE_EXCHANGE}
fHead:PPasMPTaggedPointer;
fTail:PPasMPTaggedPointer;
{$else}
fHeadCriticalSection:TPasMPCriticalSection;
fTailCriticalSection:TPasMPCriticalSection;
fHead:PPasMPThreadSafeQueueNode;
fTail:PPasMPThreadSafeQueueNode;
{$endif}
fItemSize:TPasMPInt32;
fInternalNodeSize:TPasMPInt32;
public
constructor Create(ItemSize:TPasMPInt32);
destructor Destroy; override;
procedure Clear; {$ifdef CAN_INLINE}inline;{$endif}
function IsEmpty:boolean; {$ifdef CAN_INLINE}inline;{$endif}
procedure Enqueue(const Item); {$ifdef CAN_INLINE}inline;{$endif}
function Dequeue(out Item):boolean; {$ifdef CAN_INLINE}inline;{$endif}
end;
{$if defined(fpc) and (fpc_version>=3)}{$pop}{$ifend}
TPasMPThreadSafeHashTableHash=TPasMPUInt32;
PPasMPThreadSafeHashTableItem=^TPasMPThreadSafeHashTableItem;
TPasMPThreadSafeHashTableItem=record
case TPasMPInt32 of
0:(
Lock:TPasMPInt32;
State:TPasMPInt32;
Hash:TPasMPThreadSafeHashTableHash;
Data:record
// Empty
end;
);
1:(
LockState:TPasMPInt64Record;
);
end;
PPasMPThreadSafeHashTableState=^TPasMPThreadSafeHashTableState;
TPasMPThreadSafeHashTableState=record
case TPasMPInt32 of
0:(
Previous:PPasMPThreadSafeHashTableState;
Next:PPasMPThreadSafeHashTableState;
ReferenceCounter:TPasMPInt32;
Version:TPasMPInt32;
Size:TPasMPInt32;
Mask:TPasMPInt32;
LogSize:TPasMPInt32;
Count:TPasMPInt32;
Items:pointer;
);
1:(
FillUp:array[0..(PasMPCPUCacheLineSize*(SizeOf(TPasMPPtrUInt) div SizeOf(TPasMPUInt32)))-1] of TPasMPUInt8;
);
end;
{$if defined(fpc) and (fpc_version>=3)}{$push}{$optimization noorderfields}{$ifend}
// A thread-safe hash table with open addressing and double-hashing-like probing (two values from one single hash value)
// The read operation is almost lock-free until the read-acquisition of the multiple-reader-single-writer-lock of a hash item,
// since a item value can larger than one and two native maschine words
// The write operations are almost multiple-reader-single-writer-lock-based
// Why not complete lock-free? => Because TPasMPThreadSafeHashTable should be universal usable independently by the key and
// value data types and also key-and-value-object-reference-counting-free as much as possble.
TPasMPThreadSafeHashTable=class // only for PasMP internal usage
private