lwIP
2.1.0
Lightweight IP stack
|
#include "lwip/opt.h"
Functions | |
void | mem_init (void) |
void * | mem_trim (void *mem, mem_size_t size) |
void * | mem_malloc (mem_size_t size) |
void * | mem_calloc (mem_size_t count, mem_size_t size) |
void | mem_free (void *mem) |
Heap API
void* mem_calloc | ( | mem_size_t | count, |
mem_size_t | size | ||
) |
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.
count | number of objects to allocate |
size | size of the objects to allocate |
void mem_free | ( | void * | rmem | ) |
Put a struct mem back on the heap
rmem | is the data portion of a struct mem as returned by a previous call to mem_malloc() |
void mem_init | ( | void | ) |
Zero the heap and initialize start, end and lowest-free
void* mem_malloc | ( | mem_size_t | size_in | ) |
Allocate a block of memory with a minimum of 'size' bytes.
size_in | is the minimum size of the requested block in bytes. |
Note that the returned value will always be aligned (as defined by MEM_ALIGNMENT).
void* mem_trim | ( | void * | rmem, |
mem_size_t | new_size | ||
) |
Shrink memory returned by mem_malloc().
rmem | pointer to memory allocated by mem_malloc the is to be shrinked |
new_size | required size after shrinking (needs to be smaller than or equal to the previous size) |