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Top Forums Programming How to cancel a thread safely from the initial thread? Post 70471 by alan.zhao on Friday 29th of April 2005 03:44:01 AM
How to cancel a thread safely from the initial thread?

how about asynchronous canceling?
or with signal?
if with signal whether it effects the process?
my english so badly Smilie Smilie
 
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thr_kill(3C)															      thr_kill(3C)

NAME
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)

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