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init_mempool

Summary
#include <stdlib.h>

void init_mempool (
  void *p,              /* start of memory pool */
  unsigned int size);   /* length of memory pool */
Description

The init_mempool function initializes the memory management routines and provides the starting address and size of the memory pool. The p argument points to a memory area in xdata which is managed using the calloc, free, malloc, and realloc library functions. The size argument specifies the number of bytes to use for the memory pool.

Note

  • This function must be used to setup the memory pool before any other memory management functions (calloc, free, malloc, realloc) can be called. Call the init_mempool function only once at the beginning of your program.
  • Source code for this routine is provide in the LIB folder. You may modify the source to customize this function for your particular hardware environment.
Return Value

None.

See Also

calloc, free, malloc, realloc

Example
#include <stdlib.h>


unsigned int malloc_mempool [0x400];  // 4KB memory pool

void tst_init_mempool (void) {
  int i;
  void *p;

  init_mempool (&malloc_mempool, sizeof(malloc_mempool));

  p = malloc (100);

  for (i = 0; i < 100; i++)
    ((char *) p)[i] = i;

  free (p);
}
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