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0 Command: clock_getcpuclockid | Section: 3 | Source: FreeBSD | File: clock_getcpuclockid.3.gz
CLOCK_GETCPUCLOCKID(3) FreeBSD Library Functions Manual NAME clock_getcpuclockid - access a process CPU-time clock LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <time.h> int clock_getcpuclockid(pid_t pid, clockid_t *clock_id); DESCRIPTION The clock_getcpuclockid() returns the clock ID of the CPU-time clock of the process specified by pid. If the process described by pid exists and the calling process has permission, the clock ID of this clock will be returned in clock_id. If pid is zero, the clock_getcpuclockid() function returns the clock ID of the CPU-time clock of the process making the call, in clock_id. RETURN VALUES Upon successful completion, clock_getcpuclockid() returns zero; otherwise, an error number is returned to indicate the error. ERRORS The clock_getcpuclockid() function will fail if: [EPERM] The requesting process does not have permission to access the CPU-time clock for the process. [ESRCH] No process can be found corresponding to the process specified by pid. SEE ALSO clock_gettime(2) STANDARDS The clock_getcpuclockid() function conforms to IEEE Std 1003.1-2001 ("POSIX.1"). HISTORY The clock_getcpuclockid() function first appeared in FreeBSD 10.0. AUTHORS David Xu <[email protected]> FreeBSD 14.1-RELEASE-p8 August 21, 2012 FreeBSD 14.1-RELEASE-p8

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