Overrides for OS Functions. More...

#include <OsAbstractionLayer.h>

Public Attributes
void (	Malloc )(size_t size)
	Allocate memory area. The memory area is not nulled. More...

void(*	Free )(void *memoryPointer)
	Free previously allocated memory area. More...

void (	Realloc )(void *memoryPointer, size_t size)
	Reallocate previously allocated memory area with a new size. More...

bool(*	InitializeMutex )(zForceMutex **zForceMutex)
	Initialize Mutex. More...

bool(*	LockMutex )(zForceMutex *zForceMutex)
	Lock Mutex. More...

bool(*	UnlockMutex )(zForceMutex *zForceMutex)
	Unlock Mutex. More...

bool(*	DestroyMutex )(zForceMutex *zForceMutex)
	Destroy Mutex. More...

bool(*	InitializeSemaphore )(zForceSemaphore **zForceSemaphore, uint32_t initialValue)
	Initialize Semaphore. More...

bool(*	WaitForSemaphore )(zForceSemaphore *zForceSemaphore, uint32_t timeoutMs)
	Wait for Semaphore. More...

bool(*	IncrementSemaphore )(zForceSemaphore *zForceSemaphore)
	Increment Semaphore. More...

bool(*	DestroySemaphore )(zForceSemaphore *zForceSemaphore)
	Destroy Semaphore. More...

uint64_t(*	GetTimeMilliSeconds )(void)
	Get time in MilliSeconds. More...

bool(*	CreateThread )(zForceThread *zForceThread, void(entryPoint)(void ), void arguments)
	Create Thread and run it. More...

bool(*	WaitForThreadExit )(zForceThread *zForceThread)
	Wait for Thread to exit. More...

void(*	Sleep )(uint32_t milliSeconds)
	Sleep for a specified amount of MilliSeconds. More...

Detailed Description

Overrides for OS Functions.

Member Data Documentation

bool( * OsAbstractionLayer::CreateThread) (zForceThread **zForceThread, void(*entryPoint)(void *), void *arguments)

Create Thread and run it.

Create Thread and run it.

On failure, errno is set.

ETHREADCREATEFAILED - Thread Creation Failed.
EOUTOFMEMORY - Out of memory.
EBADTHREAD - Bad Thread pointer.

Parameters

[out]	zForceThread	Pointer to zForceThread pointer.
	entryPoint	The entrypoint of the code to run.
	arguments	Pointer to arguments passed to the thread.

Returns: True for success, False for failure. See errno.

bool( * OsAbstractionLayer::DestroyMutex) (zForceMutex *zForceMutex)

Destroy Mutex.

Destroy Mutex.

On failure, errno is set.

EMUTEXDESTROYFAILED - Mutex Destroy failed.
EBADMUTEX - Bad Mutex pointer.

Parameters

zForceMutex Pointer to zForceMutex instance.

Returns: True for success, False for failure. See errno.

bool( * OsAbstractionLayer::DestroySemaphore) (zForceSemaphore *zForceSemaphore)

Destroy Semaphore.

Destroy Semaphore. Regardless of return code, the Semaphore should no longer be used.

On failure, errno is set.

ESEMAPHOREDESTROYFAILED - Semaphore Destroy failed.
EBADSEMAPHORE - Bad Semaphore pointer.

Parameters

zForceSemaphore Semaphore to wait for.

Returns: True for success, False for failure. See errno.

void( * OsAbstractionLayer::Free) (void *memoryPointer)

Free previously allocated memory area.

Parameters

memoryPointer Pointer to memory area to free.

Returns: No return value.

uint64_t( * OsAbstractionLayer::GetTimeMilliSeconds) (void)

Get time in MilliSeconds.

The only requirement on this time is that it is a time that does not change according to timezone changes or daylight time changes. There is no requirement on this being number of milliseconds since some specified time in history.

Returns: Unsigned 64-bit value representing time in MilliSeconds.

bool( * OsAbstractionLayer::IncrementSemaphore) (zForceSemaphore *zForceSemaphore)

Increment Semaphore.

Increment Semaphore by 1.

On failure, errno is set.

ESEMAPHOREINCREMENTFAILED - Generic Semaphore Increment error.
EVALUEOVERFLOW - Semaphore would overflow if incremented.
EBADSEMAPHORE - Bad Semaphore pointer.

Parameters

zForceSemaphore Semaphore to increment.

Returns: True for success, False for failure. See errno.

bool( * OsAbstractionLayer::InitializeMutex) (zForceMutex **zForceMutex)

Initialize Mutex.

Initialize Mutex.

On failure, errno is set.

EMUTEXINITIALIZATIONFAILED - Mutex Initialization failed.
EBADMUTEX - Pointer supplied is NULL.

Parameters

[out] zForceMutex Pointer to a zForceMutex pointer.

Returns: True for success, False for failure. See errno.

bool( * OsAbstractionLayer::InitializeSemaphore) (zForceSemaphore **zForceSemaphore, uint32_t initialValue)

Initialize Semaphore.

Initialize Semaphore and set it to initialValue. The initial value is 0 for blocking and positive value for not currently blocking regardless of underlying implementation. For example for a queue, an initial value of 0 is desirable as the queue is empty initially.

On failure, errno is set.

ESEMAPHOREINITIALIZATIONFAILED - Semaphore Initialization failed.
EVALUEOVERFLOW - Timeout value too large.
EBADSEMAPHORE - Bad Semaphore pointer.

Parameters

[out]	zForceSemaphore	Pointer to zForceSemaphore pointer.
	initialValue	Initial value to set the Semaphore to.

Returns: True for success, False for failure. See errno.

bool( * OsAbstractionLayer::LockMutex) (zForceMutex *zForceMutex)

Lock Mutex.

Lock Mutex.

On failure, errno is set.

EMUTEXLOCKFAILED - Mutex Lock failed.
EBADMUTEX - Bad Mutex pointer.

Parameters

zForceMutex Pointer to zForceMutex instance.

Returns: True for success, False for failure. See errno.

void*( * OsAbstractionLayer::Malloc) (size_t size)

Allocate memory area. The memory area is not nulled.

Allocate memory area. The memory area is not nulled.

On failure, errno is set.

EOUTOFMEMORY

Parameters

size	Size of the requested memory area in bytes.

Returns: Pointer to allocated memory area or NULL for failure. See errno.

void*( * OsAbstractionLayer::Realloc) (void *memoryPointer, size_t size)

Reallocate previously allocated memory area with a new size.

Parameters

memoryPointer	Pointer to memory area or NULL to allocate a new one.
size	Size of the new area.

Returns: Pointer to memory area. Can point to a new location.

void( * OsAbstractionLayer::Sleep) (uint32_t milliSeconds)

Sleep for a specified amount of MilliSeconds.

Suspends the execution of the current thread for the specified amount of MilliSeconds.

Parameters

milliSeconds Amount of MilliSeconds to Sleep.

Returns: No return value.

bool( * OsAbstractionLayer::UnlockMutex) (zForceMutex *zForceMutex)

Unlock Mutex.

Unlock Mutex.

On failure, errno is set.

EMUTEXUNLOCKFAILED - Mutex Unlock failed.
EBADMUTEX - Bad Mutex pointer.

Parameters

zForceMutex Pointer to zForceMutex instance.

Returns: True for success, False for failure. See errno.

bool( * OsAbstractionLayer::WaitForSemaphore) (zForceSemaphore *zForceSemaphore, uint32_t timeoutMs)

Wait for Semaphore.

Wait for Semaphore. Blocks until count is incremented. No guarantee of order if multiple threads are waiting for the same Semaphore.

On failure, errno is set.

ESEMAPHOREWAITFAILED - Semaphore Wait failed.
EFAILEDGETTINGTIME - Failed getting time.
EINTERRUPTED - Interrupted before timeout.
EBADSEMAPHORE - Bad Semaphore pointer.

Parameters

zForceSemaphore Semaphore to wait for.

Returns: True for success, False for failure. See errno.

bool( * OsAbstractionLayer::WaitForThreadExit) (zForceThread *zForceThread)

Wait for Thread to exit.

Waits for Thread to exit. This function should normally never be called other than internally in the library. Blocks until Thread has exited, possibly forever.

On failure, errno is set.

EBADTHREAD - Bad Thread pointer.

Parameters

zForceThread zForceThread to wait for.

Returns: True for success, False for failure. See errno.

The documentation for this struct was generated from the following file:

OsAbstractionLayer.h

Public Attributes

Detailed Description

Member Data Documentation