pmparseinterval(3) — Linux manual page


PMPARSEINTERVAL(3)      Library Functions Manual      PMPARSEINTERVAL(3)

NAME         top

       pmParseInterval, pmParseHighResInterval - convert interval string
       to binary time structure

C SYNOPSIS         top

       #include <pcp/pmapi.h>

       int pmParseInterval(const char *string, struct timeval *urslt,
               char **errmsg);
       int pmParseHighResInterval(const char *string, struct timespec
               *nrslt, char **errmsg);

       cc ... -lpcp

DESCRIPTION         top

       pmParseInterval parses the argument string specifying an interval
       of time and fills in the tv_sec and tv_usec components of the
       urslt structure to represent that interval (microsecond

       Similary, pmParseHighResInterval parses the argument string and
       fills in the tv_sec and tv_nsec components of the nrslt structure
       to represent that interval (nanosecond precision).

       The input string is most commonly the argument following a -t
       command line option to a PCP application, and the syntax is fully
       described in PCPIntro(1).

DIAGNOSTICS         top

       pmParseInterval returns 0 and errmsg is undefined if the parsing
       is successful.

       If the given string does not conform to the required syntax
       pmParseInterval returns -1 and a dynamically allocated error
       message string in errmsg.  The error message is terminated with a
       newline and includes the text of the input string along with an
       indicator of the position at which the error was detected, e.g.
                 4minutes 30mumble
                            ^ -- unexpected value

       In the case of an error, the caller is responsible for calling
       free(3) to release the space allocated for errmsg.

SEE ALSO         top

       PCPIntro(1), free(3), PMAPI(3) and pmParseTimeWindow(3).

COLOPHON         top

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Performance Co-Pilot               PCP                PMPARSEINTERVAL(3)

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