Memory
Platform Abstraction

This module includes the platform abstraction for dynamic memory allocation.

Functions

void * otPlatCAlloc (size_t aNum, size_t aSize)
Dynamically allocates new memory.
void otPlatFree (void *aPtr)
Frees memory that was dynamically allocated.

Detailed Description

This module includes the platform abstraction for dynamic memory allocation.

Function Documentation

◆ otPlatCAlloc()

void* otPlatCAlloc ( size_t aNum,
size_t aSize
)

Dynamically allocates new memory.

On platforms that support it, should just redirect to calloc. For those that don't support calloc, should support the same functionality:

"The calloc() function contiguously allocates enough space for count objects that are size bytes of memory each and returns a pointer to the allocated memory. The allocated memory is filled with bytes of value zero."

This function is required for OPENTHREAD_CONFIG_HEAP_EXTERNAL_ENABLE.

Parameters
[in] aNum The number of blocks to allocate
[in] aSize The size of each block to allocate
Return values
void* The pointer to the front of the memory allocated
NULL Failed to allocate the memory requested.

◆ otPlatFree()

void otPlatFree ( void * aPtr )

Frees memory that was dynamically allocated.

This function is required for OPENTHREAD_CONFIG_HEAP_EXTERNAL_ENABLE.

Parameters
[in] aPtr A pointer the memory blocks to free. The pointer may be NULL.