Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

pmerrstr(3) [centos man page]

PMERRSTR(3)						     Library Functions Manual						       PMERRSTR(3)

NAME
pmErrStr, pmErrStr_r - convert a PMAPI error code into a string C SYNOPSIS
#include <pcp/pmapi.h> const char *pmErrStr(int code); char *pmErrStr_r(int code, char *buf, int buflen); cc ... -lpcp DESCRIPTION
Translate an error code into a text string, suitable for generating a diagnostic message. The pmErrStr_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 PM_MAXERRMSGLEN bytes. By convention, all error codes are negative. The small values are assumed to be negated versions of the Unix error codes as defined in <errno.h> and the strings returned are as per strerror(3C). The larger, negative error codes are Performance Metrics Application Program- ming Interface (PMAPI) error conditions and pmErrStr(3) returns an appropriate PMAPI error string, as determined by code. NOTES
pmErrStr returns a pointer to a static buffer, so the returned value is only valid until the next call to pmErrStr and hence is not thread- safe. Multi-threaded applications should use pmErrStr_r instead. SEE ALSO
pmerr(1), PMAPI(3) and perror(3C). Performance Co-Pilot PCP PMERRSTR(3)

Check Out this Related Man Page

PMTYPESTR(3)						     Library Functions Manual						      PMTYPESTR(3)

NAME
pmTypeStr, pmTypeStr_r - convert a performance metric type into a string C SYNOPSIS
#include <pcp/pmapi.h> const char *pmTypeStr(int type); char *pmTypeStr_r(int type, char *buf, int buflen); cc ... -lpcp DESCRIPTION
Given a performance metric type, pmTypeStr produces a terse ASCII equivalent, appropriate for use in error and diagnostic messages. The pmTypeStr_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 type is typically extracted from a pmDesc structure, following a call to pmLookupDesc(3) for a particular performance metric. Examples are 32 (for type equals PM_TYPE_32), U64 (for type equals PM_TYPE_U64), AGGREGATE (for type equals PM_TYPE_AGGREGATE), etc. The string value result for pmTypeStr is held in a single static buffer, so the returned value is only valid until the next call to pmType- Str. NOTES
pmTypeStr returns a pointer to a static buffer and hence is not thread-safe. Multi-threaded applications should use pmTypeStr_r instead. SEE ALSO
PMAPI(3), pmAtomStr(3), pmConvScale(3), pmExtractValue(3), pmLookupDesc(3), pmPrintValue(3) and pmUnitsStr(3). Performance Co-Pilot PCP PMTYPESTR(3)
Man Page

Featured Tech Videos