| PMPARSEINTERVAL(3) | Library Functions Manual | PMPARSEINTERVAL(3) |
pmParseInterval, pmParseHighResInterval - convert interval string to binary time structure
#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
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 precision).
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).
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.
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