Memory Pool Interface SilcStack SilcStackFrame SilcStackOomHandler silc_stack_alloc silc_stack_free silc_stack_push silc_stack_pop silc_stack_malloc silc_stack_realloc silc_stack_set_oom_handler silc_stack_set_alignment silc_stack_get_alignment silc_stack_purge silc_stack_set_global silc_stack_get_global

silc_stack_realloc

SYNOPSIS

    void *silc_stack_realloc(SilcStack stack, SilcUInt32 old_size,
                             void *ptr, SilcUInt32 size);

DESCRIPTION

Attempts to reallocate memory by changing the size of the `ptr' into `size'. This routine works only if the previous allocation to `stack' was `ptr'. If there is another memory allocation between allocating `ptr' and this call this routine will return NULL (and silc_errno is set to SILC_ERR_INVALID_ARGUMENT). NULL is also returned if the `size' does not fit into the current stack block. If NULL is returned the old memory remains intact.

NOTES

This function should be used only if low level memory allocation with SilcStack is needed. Instead, silc_srealloc could be used which can handle failed reallocation by allocating new block.