Unit Threads
From Ultibo.org
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Description
To be documented
Constants
To be documented
Type definitions
To be documented
Public variables
To be documented
Function declarations
Initialization functions
procedure LocksInit;
Description: Initialize Locks
| Note | To be documented |
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procedure ThreadsInit;
Description: Initialize Threading
| Note | To be documented |
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procedure PrimaryInit;
Description: Initialize the primary CPU
| Note | To be documented |
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procedure SchedulerInit;
Description: Initialize the thread scheduler
| Note | To be documented |
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procedure SchedulerStart(CPUID:LongWord);
Description: Initialize the thread scheduler for secondary CPUs (Where Applicable)
| Note | To be documented |
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procedure SecondaryInit;
Description: Initialize the secondary CPUs (Where Applicable)
| Note | To be documented |
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procedure SecondaryBoot(CPUID:LongWord);
Description: Boot the specified secondary CPU (Where Applicable)
| Note | To be documented |
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procedure SecondaryStart(CPUID:LongWord);
Description: Startup procedure for secondary CPUs (Where Applicable)
| Note | The Secondary Boot procedure should have already cleared L1 cache, enabled FPU, MMU, Vectors and PageTables before calling this function. The thread id of the IRQ or FIQ should also have been loaded into the appropriate registers. |
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function IRQExecute(Parameter:Pointer):PtrInt;
Description: To be documented
| Note | To be documented |
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function FIQExecute(Parameter:Pointer):PtrInt;
Description: To be documented
| Note | To be documented |
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function SWIExecute(Parameter:Pointer):PtrInt;
Description: To be documented
| Note | To be documented |
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function IdleExecute(Parameter:Pointer):PtrInt;
Description: To be documented
| Note | To be documented |
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function MainExecute(Parameter:Pointer):PtrInt;
Description: To be documented
| Note | To be documented |
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function TimerExecute(Parameter:Pointer):PtrInt;
Description: To be documented
| Note | To be documented |
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function WorkerExecute(Parameter:Pointer):PtrInt;
Description: To be documented
| Note | To be documented |
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function IdleCalibrate:LongWord;
Description: Calibrate the idle thread loop by counting the number of loops in 100ms
| Note | To be documented |
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Spin functions
function SpinCreate:TSpinHandle;
Description: Create and insert a new Spin entry
| Return | Handle of new Spin entry or INVALID_HANDLE_VALUE if entry could not be created |
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function SpinCreateEx(InitialOwner:Boolean):TSpinHandle;
Description: Create and insert a new Spin entry
| InitialOwner | If true set the state of the spin to locked and the owner to the current thread |
|---|---|
| Return | Handle of new Spin entry or INVALID_HANDLE_VALUE if entry could not be created |
function SpinDestroy(Spin:TSpinHandle):LongWord;
Description: Destroy and remove an existing Spin entry
| Spin | Handle of Spin entry to destroy |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure |
function SpinOwner(Spin:TSpinHandle):TThreadHandle;
Description: Get the current owner of an existing Spin entry
| Spin | Handle of Spin entry to get owner for |
|---|---|
| Return | Handle of owning thread or INVALID_HANDLE_VALUE if not currently owned |
function SpinLock(Spin:TSpinHandle):LongWord;
Description: Lock an existing Spin entry
| Spin | Handle of Spin entry to lock |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure |
function SpinUnlock(Spin:TSpinHandle):LongWord;
Description: Unlock an existing Spin entry
| Spin | Handle of Spin entry to unlock |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure |
function SpinLockIRQ(Spin:TSpinHandle):LongWord;
Description: Lock an existing Spin entry, disable IRQ and save the previous IRQ state
| Spin | Handle of Spin entry to lock |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure |
function SpinUnlockIRQ(Spin:TSpinHandle):LongWord;
Description: Unlock an existing Spin entry and restore the previous IRQ state
| Spin | Handle of Spin entry to unlock |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure |
function SpinLockFIQ(Spin:TSpinHandle):LongWord;
Description: Lock an existing Spin entry, disable FIQ and save the previous FIQ state
| Spin | Handle of Spin entry to lock |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure |
function SpinUnlockFIQ(Spin:TSpinHandle):LongWord;
Description: Unlock an existing Spin entry and restore the previous FIQ state
| Spin | Handle of Spin entry to unlock |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure |
function SpinLockIRQFIQ(Spin:TSpinHandle):LongWord;
Description: Lock an existing Spin entry, disable IRQ and FIQ and save the previous IRQ and FIQ state
| Spin | Handle of Spin entry to lock |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure |
function SpinUnlockIRQFIQ(Spin:TSpinHandle):LongWord;
Description: Unlock an existing Spin entry and restore the previous IRQ and FIQ state
| Spin | Handle of Spin entry to unlock |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure |
function SpinCheckIRQ(Spin:TSpinHandle):Boolean;
Description: Check the mask that stores the previous IRQ state to determine if IRQ is enabled
| Spin | Handle of Spin entry to check |
|---|---|
| Return | True if the mask would enable IRQ on restore, False if it would not |
| Note | The Spin entry must be locked by the current thread |
function SpinCheckFIQ(Spin:TSpinHandle):Boolean;
Description: Check the mask that stores the previous FIQ state to determine if FIQ is enabled
| Spin | Handle of Spin entry to check |
|---|---|
| Return | True if the mask would enable FIQ on restore, False if it would not |
| Note | The Spin entry must be locked by the current thread |
function SpinExchangeIRQ(Spin1,Spin2:TSpinHandle):LongWord;
Description: Exchange the previous IRQ state between two Spin entries
| Spin1 | Handle of first Spin entry |
|---|---|
| Spin2 | Handle of second Spin entry |
| Return | ERROR_SUCCESS if completed or another error code on failure |
| Note | Both Spin entries must be locked by the current thread |
function SpinExchangeFIQ(Spin1,Spin2:TSpinHandle):LongWord;
Description: Exchange the previous FIQ state between two Spin entries
| Spin1 | Handle of first Spin entry |
|---|---|
| Spin2 | Handle of second Spin entry |
| Return | ERROR_SUCCESS if completed or another error code on failure |
| Note | Both Spin entries must be locked by the current thread |
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