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   pmindomstr    ( 3 )

преобразовать идентификатор домена экземпляра метрики производительности в строку (convert a performance metric instance domain identifier into a string)

Имя (Name)

pmInDomStr, pmInDomStr_r - convert a performance metric instance
       domain identifier into a string

Синопсис C (C Synopsis)

#include <pcp/pmapi.h>

const char *pmInDomStr(pmInDom indom); char *pmInDomStr_r(pmInDom indom, char *buf, int buflen);

cc ... -lpcp


Описание (Description)

For use in error and diagnostic messages, pmInDomStr return a
       'human readable' version of the specified instance domain
       identifier.  The pmInDomStr_r function does the same, but stores
       the result in a user-supplied buffer buf of length buflen, which
       should have room for at least 20 bytes.

The value for the instance domain indom is typically extracted from a pmDesc structure, following a call to pmLookupDesc(3) for a particular performance metric.

Internally, an instance domain identifier is encoded with two fields: domain and serial.

pmInDomStr returns a string with each of the fields appearing as decimal numbers, separated by periods.

The string value returned by pmInDomStr is held in a single static buffer, so the returned value is only valid until the next call to pmInDomStr.


Примечание (Note)

pmInDomStr returns a pointer to a static buffer and hence is not
       thread-safe.  Multi-threaded applications should use pmInDomStr_r
       instead.

Окружение PCP (PCP environment)

Environment variables with the prefix PCP_ are used to
       parameterize the file and directory names used by PCP.  On each
       installation, the file /etc/pcp.conf contains the local values
       for these variables.  The $PCP_CONF variable may be used to
       specify an alternative configuration file, as described in
       pcp.conf(5).  Values for these variables may be obtained
       programmatically using the pmGetConfig(3) function.

Смотри также (See also)

PMAPI(3), pmGetConfig(3), pmIDStr(3), pmTypeStr(3), pmSemStr(3),
       pmUnitsStr(3), pmLookupDesc(3), pcp.conf(5) and pcp.env(5).