distortos::architecture::anonymous_namespace{ARMv6-M-ARMv7-M-requestFunctionExecution.cpp} Namespace Reference

Functions
void	removeStackFrame (const void *const savedStackPointer)
	Removes stack frame inserted by requestFunctionExecution() in case of interrupt -> current thread request. More...
void	functionTrampoline (void(&function)(), const void *const savedStackPointer, const bool fullContext)
	Trampoline used to execute function on new stack frame. More...
int	fromInterruptToCurrentThread (internal::ThreadControlBlock &threadControlBlock, void(&function)())
	Handles request coming from interrupt context to execute provided function in current thread. More...
int	toNonCurrentThread (internal::ThreadControlBlock &threadControlBlock, void(&function)())
	Handles request to execute provided function in non-current thread. More...

Function Documentation

fromInterruptToCurrentThread()

int distortos::architecture::anonymous_namespace{ARMv6-M-ARMv7-M-requestFunctionExecution.cpp}::fromInterruptToCurrentThread	(	internal::ThreadControlBlock &	threadControlBlock,
		void(&)()	function
	)

Handles request coming from interrupt context to execute provided function in current thread.

Parameters

[in]	threadControlBlock	is a reference to ThreadControlBlock of current thread
[in]	function	is a reference to function that should be executed in current thread

Returns

0 on success, error code otherwise:

• ENOSPC - amount of free stack is too small to request function execution;

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functionTrampoline()

void distortos::architecture::anonymous_namespace{ARMv6-M-ARMv7-M-requestFunctionExecution.cpp}::functionTrampoline	(	void(&)()	function,
		const void *const	savedStackPointer,
		const bool	fullContext
	)

Trampoline used to execute function on new stack frame.

After the function returns stack frame is removed and old stack pointer value is restored.

Parameters

[in]	function	is a reference to function that will be executed
[in]	savedStackPointer	is the stack pointer value before new stack frame was created
[in]	fullContext	is an information about type of previous stack frame - "full", when the thread was not running (true) or "interrupt", when the thread was running and was interrupted (false)

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removeStackFrame()

void distortos::architecture::anonymous_namespace{ARMv6-M-ARMv7-M-requestFunctionExecution.cpp}::removeStackFrame

(

const void *const

savedStackPointer

)

Removes stack frame inserted by requestFunctionExecution() in case of interrupt -> current thread request.

Parameters

[in]	savedStackPointer	is the stack pointer value before new stack frame was created
[in]	fpuContextActive	(only when FPU is enabled) tells whether thread has active FPU context (true) or not (false)

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toNonCurrentThread()

int distortos::architecture::anonymous_namespace{ARMv6-M-ARMv7-M-requestFunctionExecution.cpp}::toNonCurrentThread	(	internal::ThreadControlBlock &	threadControlBlock,
		void(&)()	function
	)

Handles request to execute provided function in non-current thread.

Parameters

[in]	threadControlBlock	is a reference to internal::ThreadControlBlock of thread in which function should be executed
[in]	function	is a reference to function that should be executed in thread associated with threadControlBlock

Returns

0 on success, error code otherwise:

• ENOSPC - amount of free stack is too small to request function execution;

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