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thr_kill(3c) [minix man page]

thr_kill(3C)                                                                                                                          thr_kill(3C)

thr_kill - send a signal to a thread SYNOPSIS
cc -mt [ flag... ] file... [ library... ] #include <signal.h> #include <thread.h> int thr_kill(thread_t thread, int sig); The thr_kill() function sends the sig signal to the thread designated by thread. The thread argument must be a member of the same process as the calling thread. The sig argument must be one of the signals listed in signal.h(3HEAD), with the exception of SIGCANCEL being reserved and off limits to thr_kill(). If sig is 0, a validity check is done for the existence of the target thread; no signal is sent. Upon successful completion, thr_kill() returns 0. Otherwise, an error number is returned. In the event of failure, no signal is sent. The thr_kill() function will fail if: EINVAL The sig argument value is not zero and is an invalid or an unsupported signal number. ESRCH No thread was found that corresponded to the thread designated by thread ID. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |MT-Level |Async-Signal-Safe | +-----------------------------+-----------------------------+ kill(2), sigaction(2), raise(3C), signal.h(3HEAD), thr_self(3C), attributes(5), standards(5) 23 Mar 2005 thr_kill(3C)

Check Out this Related Man Page

TKILL(2)						     Linux Programmer's Manual							  TKILL(2)

tkill, tgkill - send a signal to a thread SYNOPSIS
int tkill(int tid, int sig); int tgkill(int tgid, int tid, int sig); DESCRIPTION
tgkill() sends the signal sig to the thread with the thread ID tid in the thread group tgid. (By contrast, kill(2) can only be used to send a signal to a process (i.e., thread group) as a whole, and the signal will be delivered to an arbitrary thread within that process.) tkill() is an obsolete predecessor to tgkill(). It only allows the target thread ID to be specified, which may result in the wrong thread being signaled if a thread terminates and its thread ID is recycled. Avoid using this system call. If tgid is specified as -1, tgkill() is equivalent to tkill(). These are the raw system call interfaces, meant for internal thread library use. RETURN VALUE
On success, zero is returned. On error, -1 is returned, and errno is set appropriately. ERRORS
EINVAL An invalid thread ID, thread group ID, or signal was specified. EPERM Permission denied. For the required permissions, see kill(2). ESRCH No process with the specified thread ID (and thread group ID) exists. VERSIONS
tkill() is supported since Linux 2.4.19 / 2.5.4. tgkill() was added in Linux 2.5.75. CONFORMING TO
tkill() and tgkill() are Linux-specific and should not be used in programs that are intended to be portable. NOTES
See the description of CLONE_THREAD in clone(2) for an explanation of thread groups. Glibc does not provide wrappers for these system calls; call them using syscall(2). SEE ALSO
clone(2), gettid(2), kill(2) COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at Linux 2008-10-01 TKILL(2)
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