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NAME | DESCRIPTION | SEE ALSO | COLOPHON |
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proc_pid_timers(5) File Formats Manual proc_pid_timers(5)
/proc/pid/timers - POSIX timers
/proc/pid/timers (since Linux 3.10)
A list of the POSIX timers for this process. Each timer
is listed with a line that starts with the string "ID:".
For example:
ID: 1
signal: 60/00007fff86e452a8
notify: signal/pid.2634
ClockID: 0
ID: 0
signal: 60/00007fff86e452a8
notify: signal/pid.2634
ClockID: 1
The lines shown for each timer have the following
meanings:
ID The ID for this timer. This is not the same as the
timer ID returned by timer_create(2); rather, it is
the same kernel-internal ID that is available via
the si_timerid field of the siginfo_t structure
(see sigaction(2)).
signal This is the signal number that this timer uses to
deliver notifications followed by a slash, and then
the sigev_value value supplied to the signal
handler. Valid only for timers that notify via a
signal.
notify The part before the slash specifies the mechanism
that this timer uses to deliver notifications, and
is one of "thread", "signal", or "none".
Immediately following the slash is either the
string "tid" for timers with SIGEV_THREAD_ID
notification, or "pid" for timers that notify by
other mechanisms. Following the "." is the PID of
the process (or the kernel thread ID of the thread)
that will be delivered a signal if the timer
delivers notifications via a signal.
ClockID
This field identifies the clock that the timer uses
for measuring time. For most clocks, this is a
number that matches one of the user-space CLOCK_*
constants exposed via <time.h>.
CLOCK_PROCESS_CPUTIME_ID timers display with a
value of -6 in this field. CLOCK_THREAD_CPUTIME_ID
timers display with a value of -2 in this field.
This file is available only when the kernel was configured
with CONFIG_CHECKPOINT_RESTORE.
proc(5)
This page is part of the man-pages (Linux kernel and C library
user-space interface documentation) project. Information about
the project can be found at
⟨https://www.kernel.org/doc/man-pages/⟩. If you have a bug report
for this manual page, see
⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
This page was obtained from the tarball man-pages-6.9.1.tar.gz
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⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
2024-06-26. If you discover any rendering problems in this HTML
version of the page, or you believe there is a better or more up-
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improvements to the information in this COLOPHON (which is not
part of the original manual page), send a mail to
[email protected]
Linux man-pages 6.9.1 2024-05-02 proc_pid_timers(5)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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