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pthread_getcpuclockid(3p) [posix man page]

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

PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond- ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux. NAME
pthread_getcpuclockid -- access a thread CPU-time clock (ADVANCED REALTIME THREADS) SYNOPSIS
#include <pthread.h> #include <time.h> int pthread_getcpuclockid(pthread_t thread_id, clockid_t *clock_id); DESCRIPTION
The pthread_getcpuclockid() function shall return in clock_id the clock ID of the CPU-time clock of the thread specified by thread_id, if the thread specified by thread_id exists. RETURN VALUE
Upon successful completion, pthread_getcpuclockid() shall return zero; otherwise, an error number shall be returned to indicate the error. ERRORS
No errors are defined. The following sections are informative. EXAMPLES
None. APPLICATION USAGE
The pthread_getcpuclockid() function is part of the Thread CPU-Time Clocks option and need not be provided on all implementations. RATIONALE
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 [ESRCH] error. FUTURE DIRECTIONS
None. SEE ALSO
clock_getcpuclockid(), clock_getres(), timer_create() The Base Definitions volume of POSIX.1-2008, <pthread.h>, <time.h> COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technol- ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) 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 Stan- dard is the referee document. The original Standard can be obtained online at http://www.unix.org/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 2013 PTHREAD_GETCPUCLOCKID(3P)

Check Out this Related Man Page

PTHREAD_EQUAL(3P)					     POSIX Programmer's Manual						 PTHREAD_EQUAL(3P)

PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond- ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux. NAME
pthread_equal -- compare thread IDs SYNOPSIS
#include <pthread.h> int pthread_equal(pthread_t t1, pthread_t t2); DESCRIPTION
This function shall compare the thread IDs t1 and t2. RETURN VALUE
The pthread_equal() function shall return a non-zero value if t1 and t2 are equal; otherwise, zero shall be returned. If either t1 or t2 are not valid thread IDs, the behavior is undefined. ERRORS
No errors are defined. The pthread_equal() function shall not return an error code of [EINTR]. The following sections are informative. EXAMPLES
None. APPLICATION USAGE
None. RATIONALE
Implementations may choose to define a thread ID as a structure. This allows additional flexibility and robustness over using an int. For example, a thread ID could include a sequence number that allows detection of ``dangling IDs'' (copies of a thread ID that has been detached). Since the C language does not support comparison on structure types, the pthread_equal() function is provided to compare thread IDs. FUTURE DIRECTIONS
None. SEE ALSO
pthread_create(), pthread_self() The Base Definitions volume of POSIX.1-2008, <pthread.h> COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technol- ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) 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 Stan- dard is the referee document. The original Standard can be obtained online at http://www.unix.org/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 2013 PTHREAD_EQUAL(3P)
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