Page 91 - DCAP408_WEB_PROGRAMMING

Unit 5: Memory Management (I)

It defines the address of the memory pool. Notes
Return value:
It indicates the pointer to newly assigned memory block or NULL on failure.
Description:

Function assigns a memory block in stated memory pool. Block size is stated during
memory pool initialization. Allocated addresses are always allocated to value stated in
AR_MEMORY_ALIGNMENT, comparatively to start of the memory pool. If function successes,
it return pointer to newly assigned memory block. On failure, it returns a NULL. Function do
not sets the previous error code on failure. Access to the fixed memory is never synchronized. If
it is compulsory it should be executed.
Function will be expelled from compilation when functions accountable for fixed size memory
management are disabled, by setting ST_USE_FIXMEM for 0.

stFixedMemFree function

Declaration:
BOOL stFixedMemFree(
PVOID MemoryPool,
PVOID Address
);
Parameters:
MemoryPool
It defines the address of memory pool.

Address

It indicates the address of the block to release.

Return value:
TRUE on success or FALSE on failure.
Description:
Function releases memory block assigned by stFixedMemAlloc function. It does not set the last
error code on failure. Access to the fixed memory is never coordinated. If it is compulsory that
it should be implemented.

Function will be expelled from compilation when functions accountable for memory management
are disabled, by setting ST_USE_FIXMEM for 0.

stFixedMemInit function

Declaration:
BOOL stFixedMemInit(
PVOID MemoryPool,
SIZE MemorySize,

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