Sponsored Content
Full Discussion: About threading
Top Forums UNIX for Dummies Questions & Answers About threading Post 11703 by rajashekaran on Tuesday 11th of December 2001 02:20:48 AM
Old 12-11-2001
About threading

hai
is unix a multithreading environment or multitasking
environment? which one exist in UNIX?
 

10 More Discussions You Might Find Interesting

1. Programming

Regarding Multi-Threading

Hi All, Here's my question I have a 385 MB file containing 5,000,000 records. I need to read from the file and load into a table. Initially i thought of doing it in a single thread (execution of a single program) but when calculated accounted 16 hours of time on a standard benchmark. Hence... (5 Replies)
Discussion started by: matrixmadhan
5 Replies

2. UNIX for Dummies Questions & Answers

Threading...

Sorry, i may be posting the wrong question in this forum... but just curious, suppose we have a set of pre-emptively scheduled processes. A process, B, is multi-threaded with user-level thread scheduling. If one of the threads has a long calculation before making a thread library call, does this... (2 Replies)
Discussion started by: ianlow
2 Replies

3. Programming

Multi threading?

I am not sure if multi threading is the correct term, but here is what I am trying to do. I have a while loop that displays the number 1, pauses, displays the number 2, pauses , displays the number 3 ad infinitum. It just keeps counting. While the screen displays the sequence of numbers counting... (4 Replies)
Discussion started by: enuenu
4 Replies

4. Shell Programming and Scripting

is Threading in shell script possible...?

Hi frnds, I have once script which is executing the command on local and remote machine continuously and I m collecting the required logs in separate file. Now, I m facing one issue... One or two test get hang randomly.. and because of that script get hang in between.... Now to resolve... (2 Replies)
Discussion started by: deepak_p86
2 Replies

5. Programming

threading problem

#include <stdio.h> #include <stdlib.h> #include <pthread.h> void *print_message_function( void *ptr ); main() { pthread_t thread1, thread2; char *message1 = "Thread 1"; char *message2 = "Thread 2"; int iret1, iret2; /* Create independent threads each of... (3 Replies)
Discussion started by: vishy_85
3 Replies

6. Programming

Threading Segmentation fault

Hello All, I am getting segmentation fault after the following lien when I try to run my datagram socket server program using threads: if((n= recvfrom(rec, buf, 1024, 0, (struct sockaddr *)&from_addr, &Size)) < 0) I am not able to figure out what exactly is causing the problem. ... (9 Replies)
Discussion started by: mind@work
9 Replies

7. Programming

Multi-threading

Hi, If we create 10 threads to invoke runQuery method at same time, Will queryProcessor will be overriden sometime or 10 different copies will be created? We are not using any sunchronzation mechnism in runQuery(). so there is not gurantee on QueryProcessor class variables right OR each 10... (1 Reply)
Discussion started by: jramesh1
1 Replies

8. Programming

Multi-threading

In this piece i implemented the gossip method. The first thread is invoked from inside the (msg is first sent from node -1 to 0 from main()) and the other threads are invoked from inside of the thread function itself. I used two mutexes and a condition variable to control the synchronization. ... (4 Replies)
Discussion started by: saman_glorious
4 Replies

9. Shell Programming and Scripting

Threading in unix

Hii all, Is there any way to use thread scripting in unix.?? i.e. running multiple command at same time ? Thankss (3 Replies)
Discussion started by: yashwantkumar
3 Replies

10. UNIX for Dummies Questions & Answers

Confusion over Multi Threading

Hi, I am trying to get my head round Multi Threading and I have a few queries to try and clear up my confusion Q1. Is multi threading a hardware / chip level concept, an OS level or an application level concept ? I am trying to work out where SMT architecture fits in. Q2. What's the multi... (3 Replies)
Discussion started by: jimthompson
3 Replies
set(1F) 							   FMLI Commands							   set(1F)

NAME
set, unset - set and unset local or global environment variables SYNOPSIS
set [ -l variable [ =value]] ... set [ -e variable [ =value]] ... set [ -ffile variable [ =value]...] ... unset -l variable... unset -f file variable... DESCRIPTION
The set command sets variable in the environment, or adds variable=value to file. If variable is not equated it to a value, set expects the value to be on stdin. The unset command removes variable. Note that the FMLI predefined, read-only variables (such as ARG1), may not be set or unset. Note that at least one of the above options must be used for each variable being set or unset. If you set a variable with the -ffilename option, you must thereafter include filename in references to that variable. For example, ${(file)VARIABLE}. FMLI inherits the UNIX environment when invoked. OPTIONS
-l Sets or unsets the specified variable in the local environment. Variables set with -l will not be inherited by processes invoked from FMLI. -e Sets the specified variable in the UNIX environment. Variables set with -e will be inherited by any processes started from FMLI. Note that these variables cannot be unset. -ffile Sets or unsets the specified variable in the global environment. The argument file is the name, or pathname, of a file containing lines of the form variable=value. file will be created if it does not already exist. Note that no space intervenes between -f and file. EXAMPLES
Example 1: A sample output of set command. Storing a selection made in a menu: name=Selection 2 action=`set -l SELECTION=2`close NOTES
Variables set to be available to the UNIX environment (those set using the -e option) can only be set for the current fmli process and the processes it calls. When using the -f option, unless file is unique to the process, other users of FMLI on the same machine will be able to expand these vari- ables, depending on the read/write permissions on file. A variable set in one frame may be referenced or unset in any other frame. This includes local variables. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
env(1), sh(1), attributes(5) SunOS 5.10 5 Jul 1990 set(1F)
All times are GMT -4. The time now is 06:04 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy