1PMEMCTO_SET_ROOT_POINTER(3)PMDK Programmer's ManualPMEMCTO_SET_ROOT_POINTER(3)
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NAME

6       pmemcto_set_root_pointer,  pmemcto_get_root_pointer - set or obtain the
7       root object pointer
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SYNOPSIS

10              #include <libpmemcto.h>
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12              void pmemcto_set_root_pointer(PMEMctopool *pcp, void *ptr);
13              void *pmemcto_get_root_pointer(PMEMctopool *pcp);
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DESCRIPTION

16       The root object of persistent memory pool is an  entry  point  for  all
17       other  persistent  objects  allocated using the libpmemcto(7) APIs.  In
18       other words, every single  object  stored  in  persistent  memory  pool
19       should have the root object at the end of its reference path.  There is
20       exactly one root object in each pool.
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22       The pmemcto_set_root_pointer() function saves the pointer to  the  root
23       object  in  given  pool.  The ptr must have been returned by a previous
24       call to  pmemcto_malloc(3),  pmemcto_calloc(3),  pmemcto_realloc(3)  or
25       pmemcto_aligned_alloc(3) for the same pool of memory.
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27       The pmemcto_get_root_pointer() function returns the pointer to the root
28       object in given pool, or NULL if the root pointer was never set.
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RETURN VALUE

31       The pmemcto_set_root_pointer() function returns no value.
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33       The pmemcto_get_root_pointer() function returns the pointer to the root
34       object in given pool, or NULL if the root pointer was never set.
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SEE ALSO

37       pmemcto_aligned_alloc(3),  pmemcto_calloc(3), pmemcto_malloc(3), pmemc‐
38       to_realloc(3), libpmemcto(7) and <http://pmem.io>
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42PMDK - libpmemcto API version 1.0 2018-07-20       PMEMCTO_SET_ROOT_POINTER(3)
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