#!/bin/ksh
date=`date +%y%m%d%H%M%S`
thread() {
echo "test" >> /tmp.txt
echo $date >> /tmp.txt // This to get the time logged for different iterations and see if all processed at same time
}
for i in {1..5}; do
thread &
done
In the output file - i could see the values written only for the 1st iteration but not for the subsequent iteration.
Does this mean the shell is non-POSIX compliant? or how to test whether it is POSIX compliant and whether it works for the sample script.
Does my sample program makes any sense for testing this functionality and if it is how to confirm that multi-threading is acheived using a sample script?
Last edited by fpmurphy; 03-19-2012 at 11:34 PM..
Reason: code tags please!
Windows blows. I'm poor so unix is looking like a great alterative (expecially after my former roommate showed me most of the things it can do). Right now I'm looking at Debian or some other Unix kernel that would run nicley on my computer.
But the problem we had with installing it while he was... (3 Replies)
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How to post a new thread (Regarding Unix related doubts) in Unix Forums.
I registered my id but I am unable to post my Questions to Forum.
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indusri (1 Reply)
Hi,
I have a simulation program which creates two threads and I would like to know if I can measure the time of each individual thread. Threads communicate (I use pthread to manage them) and I want to measure communication time. I found a solution with clock_gettime and CLOCK_THREAD_CPUTIME_ID... (32 Replies)
Hi This is continuation of previos thread
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server=linux
The script was made which is used to capture the data from file
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LEARN ABOUT SUNOS
thr_kill
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)
03-19-2012
