diff options
| author | Alejandro Colomar <alx@kernel.org> | 2024-04-26 15:06:49 +0200 |
|---|---|---|
| committer | Alejandro Colomar <alx@kernel.org> | 2024-05-02 01:24:19 +0200 |
| commit | dcde2f70372b49ec43efc5db864c9ff585d0a2dd (patch) | |
| tree | 78b9b7425130e4a5858e4c01a524d802423879ed /man/man3/pthread_kill.3 | |
| parent | 12aca537ce78a41bbcdaf485209691e10f8002d7 (diff) | |
| download | man-pages-dcde2f70372b49ec43efc5db864c9ff585d0a2dd.tar.gz | |
man/, share/mk/: Move man*/ to man/
This is a scripted change:
$ mkdir man/;
$ mv man* man/;
$ ln -st . man/man*;
$ find share/mk/ -type f \
| xargs grep -l '^MANDIR *:=' \
| xargs sed -i '/^MANDIR *:=/s,$,/man,';
$ find share/mk/dist/ -type f \
| xargs grep -l man \
| xargs sed -i 's,man%,man/%,g';
Link: <https://lore.kernel.org/linux-man/YxcV4h+Xn7cd6+q2@pevik/T/>
Cc: Petr Vorel <pvorel@suse.cz>
Cc: Jakub Wilk <jwilk@jwilk.net>
Cc: Stefan Puiu <stefan.puiu@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
Diffstat (limited to 'man/man3/pthread_kill.3')
| -rw-r--r-- | man/man3/pthread_kill.3 | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/man/man3/pthread_kill.3 b/man/man3/pthread_kill.3 new file mode 100644 index 0000000000..5f158293e4 --- /dev/null +++ b/man/man3/pthread_kill.3 @@ -0,0 +1,108 @@ +'\" t +.\" Copyright (c) 2009 Linux Foundation, written by Michael Kerrisk +.\" <mtk.manpages@gmail.com> +.\" +.\" SPDX-License-Identifier: Linux-man-pages-copyleft +.\" +.TH pthread_kill 3 (date) "Linux man-pages (unreleased)" +.SH NAME +pthread_kill \- send a signal to a thread +.SH LIBRARY +POSIX threads library +.RI ( libpthread ", " \-lpthread ) +.SH SYNOPSIS +.nf +.B #include <signal.h> +.P +.BI "int pthread_kill(pthread_t " thread ", int " sig ); +.fi +.P +.RS -4 +Feature Test Macro Requirements for glibc (see +.BR feature_test_macros (7)): +.RE +.P +.BR pthread_kill (): +.nf + _POSIX_C_SOURCE >= 199506L || _XOPEN_SOURCE >= 500 +.fi +.SH DESCRIPTION +The +.BR pthread_kill () +function sends the signal +.I sig +to +.IR thread , +a thread in the same process as the caller. +The signal is asynchronously directed to +.IR thread . +.P +If +.I sig +is 0, then no signal is sent, but error checking is still performed. +.SH RETURN VALUE +On success, +.BR pthread_kill () +returns 0; +on error, it returns an error number, and no signal is sent. +.SH ERRORS +.TP +.B EINVAL +An invalid signal was specified. +.SH ATTRIBUTES +For an explanation of the terms used in this section, see +.BR attributes (7). +.TS +allbox; +lbx lb lb +l l l. +Interface Attribute Value +T{ +.na +.nh +.BR pthread_kill () +T} Thread safety MT-Safe +.TE +.SH VERSIONS +The glibc implementation of +.BR pthread_kill () +gives an error +.RB ( EINVAL ) +on attempts to send either of the real-time signals +used internally by the NPTL threading implementation. +See +.BR nptl (7) +for details. +.P +POSIX.1-2008 recommends that if an implementation detects the use +of a thread ID after the end of its lifetime, +.BR pthread_kill () +should return the error +.BR ESRCH . +The glibc implementation returns this error in the cases where +an invalid thread ID can be detected. +But note also that POSIX says that an attempt to use a thread ID whose +lifetime has ended produces undefined behavior, +and an attempt to use an invalid thread ID in a call to +.BR pthread_kill () +can, for example, cause a segmentation fault. +.SH STANDARDS +POSIX.1-2008. +.SH HISTORY +POSIX.1-2001. +.SH NOTES +Signal dispositions are process-wide: +if a signal handler is installed, +the handler will be invoked in the thread +.IR thread , +but if the disposition of the signal is "stop", "continue", or "terminate", +this action will affect the whole process. +.SH SEE ALSO +.BR kill (2), +.BR sigaction (2), +.BR sigpending (2), +.BR pthread_self (3), +.BR pthread_sigmask (3), +.BR raise (3), +.BR pthreads (7), +.BR signal (7) |