PTHREAD_GETCPUCLOCKID(3)   POSIX Programmer's Manual  PTHREAD_GETCPUCLOCKID(3)



PPRROOLLOOGG
       This manual page is part of the POSIX Programmer's Manual.  The OS
       implementation of this interface may differ (consult the corresponding
       OS manual page for details of OS behavior), or the interface may not be
       implemented on OS.

NNAAMMEE
       pthread_getcpuclockid -- access a thread CPU-time clock (AADDVVAANNCCEEDD
       RREEAALLTTIIMMEE TTHHRREEAADDSS)

SSYYNNOOPPSSIISS
       #include <pthread.h>
       #include <time.h>

       int pthread_getcpuclockid(pthread_t _t_h_r_e_a_d___i_d, clockid_t *_c_l_o_c_k___i_d);

DDEESSCCRRIIPPTTIIOONN
       The _p_t_h_r_e_a_d___g_e_t_c_p_u_c_l_o_c_k_i_d() function shall return in _c_l_o_c_k___i_d the clock
       ID of the CPU-time clock of the thread specified by _t_h_r_e_a_d___i_d, if the
       thread specified by _t_h_r_e_a_d___i_d exists.

RREETTUURRNN VVAALLUUEE
       Upon successful completion, _p_t_h_r_e_a_d___g_e_t_c_p_u_c_l_o_c_k_i_d() shall return zero;
       otherwise, an error number shall be returned to indicate the error.

EERRRROORRSS
       No errors are defined.

       _T_h_e _f_o_l_l_o_w_i_n_g _s_e_c_t_i_o_n_s _a_r_e _i_n_f_o_r_m_a_t_i_v_e_.

EEXXAAMMPPLLEESS
       None.

AAPPPPLLIICCAATTIIOONN UUSSAAGGEE
       The _p_t_h_r_e_a_d___g_e_t_c_p_u_c_l_o_c_k_i_d() function is part of the Thread CPU-Time
       Clocks option and need not be provided on all implementations.

RRAATTIIOONNAALLEE
       If an implementation detects use of a thread ID after the end of its
       lifetime, it is recommended that the function should fail and report an
       [[EESSRRCCHH]] error.

FFUUTTUURREE DDIIRREECCTTIIOONNSS
       None.

SSEEEE AALLSSOO
       _c_l_o_c_k___g_e_t_c_p_u_c_l_o_c_k_i_d(), _c_l_o_c_k___g_e_t_r_e_s(), _t_i_m_e_r___c_r_e_a_t_e()

       The Base Definitions volume of POSIX.1-2017, <<pptthhrreeaadd..hh>>, <<ttiimmee..hh>>

CCOOPPYYRRIIGGHHTT
       Portions of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1-2017, Standard for Information Technology --
       Portable Operating System Interface (POSIX), The Open Group Base
       Specifications Issue 7, 2018 Edition, Copyright (C) 2018 by the
       Institute of Electrical and Electronics Engineers, Inc and The Open
       Group.  In the event of any discrepancy between this version and the
       original IEEE and The Open Group Standard, the original IEEE and The
       Open Group Standard is the referee document. The original Standard can
       be obtained online at http://www.opengroup.org/unix/online.html .

       Any typographical or formatting errors that appear in this page are
       most likely to have been introduced during the conversion of the source
       files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .



IEEE/The Open Group                  2017             PTHREAD_GETCPUCLOCKID(3)
