Provided by: libpcp-mmv1-dev_3.10.8build1_amd64
mmv_inc_value - update a value in a Memory Mapped Value file
#include <pcp/pmapi.h> #include <pcp/mmv_stats.h> void mmv_inc_value(void *addr, pmAtomValue *val, double inc); cc ... -lpcp_mmv -lpcp
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.
mmv_stats_init(3), mmv_lookup_value_desc(3) and mmv(5).