mmv_inc_value(3) — Linux manual page

NAME | C SYNOPSIS | DESCRIPTION | SEE ALSO | COLOPHON

MMV_INC_VALUE(3)          Library Functions Manual          MMV_INC_VALUE(3)

NAME top

       mmv_inc_value - update a value in a Memory Mapped Value file

C SYNOPSIS top

       #include <pcp/pmapi.h>
       #include <pcp/mmv_stats.h>

       void mmv_inc_value(void *addr, pmAtomValue *val, double inc);

       cc ... -lpcp_mmv -lpcp

DESCRIPTION top

       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 top

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

COLOPHON top

       This page is part of the PCP (Performance Co-Pilot) project.
       Information about the project can be found at ⟨http://www.pcp.io/⟩.
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       (which is not part of the original manual page), send a mail to
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Performance Co-Pilot                                        MMV_INC_VALUE(3)

Pages that refer to this page: mmv_lookup_value_desc(3) , mmv_stats2_init(3) , mmv_stats_init(3) , mmv_stats_registry(3) , mmv_stats_start(3) , mmv_stats_stop(3)