mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-10-31 19:31:37 +01:00
168 lines
8.3 KiB
PHP
168 lines
8.3 KiB
PHP
{
|
|
This file is part of the Free Pascal Run time library.
|
|
Copyright (c) 2000 by the Free Pascal development team
|
|
|
|
This file contains the OS indenpendend declartions for multi
|
|
threading support in FPC
|
|
|
|
See the File COPYING.FPC, included in this distribution,
|
|
for details about the copyright.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
**********************************************************************}
|
|
|
|
const
|
|
{ includes 16384 bytes margin for stackchecking }
|
|
DefaultStackSize = 4*1024*1024;
|
|
|
|
type
|
|
PEventState = pointer;
|
|
PRTLEvent = type pointer; // Windows=thandle, other=pointer to record.
|
|
TThreadFunc = function(parameter : pointer) : ptrint;
|
|
trtlmethod = procedure of object;
|
|
|
|
// Function prototypes for TThreadManager Record.
|
|
TBeginThreadHandler = Function (sa : Pointer;stacksize : PtrUInt; ThreadFunction : tthreadfunc;p : pointer;creationFlags : dword; var ThreadId : TThreadID) : TThreadID;
|
|
TEndThreadHandler = Procedure (ExitCode : DWord);
|
|
// Used for Suspend/Resume/Kill
|
|
TThreadHandler = Function (threadHandle : TThreadID) : dword;
|
|
TThreadSwitchHandler = Procedure;
|
|
TWaitForThreadTerminateHandler = Function (threadHandle : TThreadID; TimeoutMs : longint) : dword; {0=no timeout}
|
|
TThreadSetPriorityHandler = Function (threadHandle : TThreadID; Prio: longint): boolean; {-15..+15, 0=normal}
|
|
TThreadGetPriorityHandler = Function (threadHandle : TThreadID): longint;
|
|
TGetCurrentThreadIdHandler = Function : TThreadID;
|
|
TCriticalSectionHandler = Procedure (var cs);
|
|
TCriticalSectionHandlerTryEnter = function (var cs):longint;
|
|
TInitThreadVarHandler = Procedure(var offset : dword;size : dword);
|
|
TRelocateThreadVarHandler = Function(offset : dword) : pointer;
|
|
TAllocateThreadVarsHandler = Procedure;
|
|
TReleaseThreadVarsHandler = Procedure;
|
|
TBasicEventHandler = procedure(state:peventstate);
|
|
TBasicEventWaitForHandler = function (timeout:cardinal;state:peventstate):longint;
|
|
TBasicEventCreateHandler = function (EventAttributes :Pointer; AManualReset,InitialState : Boolean;const Name:ansistring):pEventState;
|
|
TRTLEventHandler = procedure(AEvent:PRTLEvent);
|
|
TRTLEventHandlerTimeout = procedure(AEvent:PRTLEvent;timeout : longint);
|
|
TRTLCreateEventHandler = function:PRTLEvent;
|
|
TRTLEventSyncHandler = procedure (m:trtlmethod;p:tprocedure);
|
|
// semaphores stuff
|
|
TSempahoreInitHandler = function: Pointer;
|
|
TSemaphoreDestroyHandler = procedure (const sem: Pointer);
|
|
TSemaphorePostHandler = procedure (const sem: Pointer);
|
|
TSemaphoreWaitHandler = procedure (const sem: Pointer);
|
|
|
|
// TThreadManager interface.
|
|
TThreadManager = Record
|
|
InitManager : Function : Boolean;
|
|
DoneManager : Function : Boolean;
|
|
BeginThread : TBeginThreadHandler;
|
|
EndThread : TEndThreadHandler;
|
|
SuspendThread : TThreadHandler;
|
|
ResumeThread : TThreadHandler;
|
|
KillThread : TThreadHandler;
|
|
CloseThread : TThreadHandler;
|
|
ThreadSwitch : TThreadSwitchHandler;
|
|
WaitForThreadTerminate : TWaitForThreadTerminateHandler;
|
|
ThreadSetPriority : TThreadSetPriorityHandler;
|
|
ThreadGetPriority : TThreadGetPriorityHandler;
|
|
GetCurrentThreadId : TGetCurrentThreadIdHandler;
|
|
InitCriticalSection : TCriticalSectionHandler;
|
|
DoneCriticalSection : TCriticalSectionHandler;
|
|
EnterCriticalSection : TCriticalSectionHandler;
|
|
TryEnterCriticalSection: TCriticalSectionHandlerTryEnter;
|
|
LeaveCriticalSection : TCriticalSectionHandler;
|
|
InitThreadVar : TInitThreadVarHandler;
|
|
RelocateThreadVar : TRelocateThreadVarHandler;
|
|
AllocateThreadVars : TAllocateThreadVarsHandler;
|
|
ReleaseThreadVars : TReleaseThreadVarsHandler;
|
|
BasicEventCreate : TBasicEventCreateHandler; // left in for a while.
|
|
BasicEventDestroy : TBasicEventHandler; // we might need BasicEvent
|
|
BasicEventResetEvent : TBasicEventHandler; // for a real TEvent
|
|
BasicEventSetEvent : TBasicEventHandler;
|
|
BasiceventWaitFOr : TBasicEventWaitForHandler;
|
|
RTLEventCreate : TRTLCreateEventHandler;
|
|
RTLEventDestroy : TRTLEventHandler;
|
|
RTLEventSetEvent : TRTLEventHandler;
|
|
RTLEventResetEvent : TRTLEventHandler;
|
|
RTLEventWaitFor : TRTLEventHandler;
|
|
RTLEventSync : TRTLEventSyncHandler;
|
|
RTLEventWaitForTimeout : TRTLEventHandlerTimeout;
|
|
// semaphores stuff
|
|
SemaphoreInit : TSempahoreInitHandler;
|
|
SemaphoreDestroy : TSemaphoreDestroyHandler;
|
|
SemaphorePost : TSemaphorePostHandler;
|
|
SemaphoreWait : TSemaphoreWaitHandler;
|
|
end;
|
|
|
|
{*****************************************************************************
|
|
Thread Handler routines
|
|
*****************************************************************************}
|
|
|
|
|
|
Function GetThreadManager(Var TM : TThreadManager) : Boolean;
|
|
Function SetThreadManager(Const NewTM : TThreadManager; Var OldTM : TThreadManager) : Boolean;
|
|
Function SetThreadManager(Const NewTM : TThreadManager) : Boolean;
|
|
{$ifndef DISABLE_NO_THREAD_MANAGER}
|
|
{$endif DISABLE_NO_THREAD_MANAGER}
|
|
// Needs to be exported, so the manager can call it.
|
|
procedure InitThreadVars(RelocProc : Pointer);
|
|
procedure InitThread(stklen:SizeUInt);
|
|
procedure DoneThread;
|
|
|
|
{*****************************************************************************
|
|
Multithread Handling
|
|
*****************************************************************************}
|
|
|
|
function BeginThread(sa : Pointer;stacksize : SizeUInt;
|
|
ThreadFunction : tthreadfunc;p : pointer;creationFlags : dword;
|
|
var ThreadId : TThreadID) : TThreadID;
|
|
|
|
{ add some simplfied forms which make lifer easier and porting }
|
|
{ to other OSes too ... }
|
|
function BeginThread(ThreadFunction : tthreadfunc) : TThreadID;
|
|
function BeginThread(ThreadFunction : tthreadfunc;p : pointer) : TThreadID;
|
|
function BeginThread(ThreadFunction : tthreadfunc;p : pointer; var ThreadId : TThreadID) : TThreadID;
|
|
function BeginThread(ThreadFunction : tthreadfunc;p : pointer;
|
|
var ThreadId : TThreadID; const stacksize: SizeUInt) : TThreadID;
|
|
|
|
procedure EndThread(ExitCode : DWord);
|
|
procedure EndThread;
|
|
|
|
{some thread support functions}
|
|
procedure FlushThread;
|
|
function SuspendThread (threadHandle : TThreadID) : dword;
|
|
function ResumeThread (threadHandle : TThreadID) : dword;
|
|
function CloseThread (threadHandle : TThreadID) : dword;
|
|
procedure ThreadSwitch; {give time to other threads}
|
|
function KillThread (threadHandle : TThreadID) : dword;
|
|
function WaitForThreadTerminate (threadHandle : TThreadID; TimeoutMs : longint) : dword; {0=no timeout}
|
|
function ThreadSetPriority (threadHandle : TThreadID; Prio: longint): boolean; {-15..+15, 0=normal}
|
|
function ThreadGetPriority (threadHandle : TThreadID): longint;
|
|
function GetCurrentThreadId : TThreadID;
|
|
|
|
|
|
{ this allows to do a lot of things in MT safe way }
|
|
{ it is also used to make the heap management }
|
|
{ thread safe }
|
|
procedure InitCriticalSection(var cs : TRTLCriticalSection);
|
|
procedure DoneCriticalsection(var cs : TRTLCriticalSection);
|
|
procedure EnterCriticalsection(var cs : TRTLCriticalSection);
|
|
procedure LeaveCriticalsection(var cs : TRTLCriticalSection);
|
|
function TryEnterCriticalsection(var cs : TRTLCriticalSection):longint;
|
|
function BasicEventCreate(EventAttributes : Pointer; AManualReset,InitialState : Boolean;const Name : ansistring):pEventState;
|
|
procedure basiceventdestroy(state:peventstate);
|
|
procedure basiceventResetEvent(state:peventstate);
|
|
procedure basiceventSetEvent(state:peventstate);
|
|
function basiceventWaitFor(Timeout : Cardinal;state:peventstate) : longint;
|
|
|
|
function RTLEventCreate :PRTLEvent;
|
|
procedure RTLeventdestroy(state:pRTLEvent);
|
|
procedure RTLeventSetEvent(state:pRTLEvent);
|
|
procedure RTLeventResetEvent(state:pRTLEvent);
|
|
procedure RTLeventWaitFor(state:pRTLEvent);
|
|
procedure RTLeventWaitFor(state:pRTLEvent;timeout : longint);
|
|
procedure RTLeventsync(m:trtlmethod;p:tprocedure);
|
|
|