NAME

       dictModifyValue  - create/modify an item.

SYNOPSIS

       #include <util/dict.h>

       NEOERR *dictModifyValue(dictCtx dict, const char *id, dictNewValueCB new_cb,
                            dictUpdateValueCB update, void *rock);

ARGUMENTS

       dict - dictionary to add pair to.
       id - identifier of value
       new - function to call to create new value (may be NULL)
       update - function to call to modify value (if NULL, the old
       value is freed, and <new> is used)
       rock - context to pass to <new> or <update>.

DESCRIPTION

       Finds  <id>'s value and calls <update>.  If <id> is not in <dict>, calls <new> to obtain a
       new value.

       MT-Level: Safe if <dict> thread-safe.

RETURN VALUE

       None.

SEE ALSO

       dictDestroy(3),   dictCleanup(3),    dictReleaseLock(3),    dictRemove(3),    dictNext(3),
       dictCreate(3), dictSetValue(3), dictModifyValue(3), dictSearch