NAME

       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.

SEE ALSO

       mmv_stats_init(3), mmv_lookup_value_desc(3) and mmv(5).