mmv_inc_value (3) Linux Manual Page
mmv_inc_value – update a value in a Memory Mapped Value file
C Synopsis
#include <pcp/pmapi.h>#include <pcp/mmv_stats.h>
void mmv_inc_value(void *addr, pmAtomValue *val, double inc);
cc … -lpcp_mmv -lpcp
Description
mmv_inc_value provides a convenient way of updating a value returned by the mmv_lookup_value_desc. addr is the address returned from mmv_stats_init(). The value of the inc is internally cast to match the type of the metric and then added to the previous value of the metric.