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Hello,

I'm coding an application using pthreads.At some point the threads will read some read-only variables.Is it safe NOT to use mutexes, in order to make the program lighter since mutex...

I found my errors...

mutex array size didn't match the initialization loop.
&
inside initialization loop mispelled i with 1.

Excuse me for this useless thread...:(

Hi Everyone

I have this quite simple "tread" function
void* row_calc(void *input)
{
struct thread_arg* th_arg;
th_arg=(struct thread_arg *) input;
int start,width,end,seg,k,l,tmp;
...

Hello everybody,

I've coded a multi-client server based on internet sockets using the scheme
listen on port X-accept-fork, exactly like beej's guide

At some point I would like to establish a...

Good morning,

I'm testing the use of ceilf:
/*Filename: str.c*/
#include <stdio.h>
#include <math.h>

int main (void)
{
float ceilf(float x);

int dev=3, result=0;

float tmp = 3.444f;...

No, but it is a start. :)

Good morning,

I would like to make a little interface for an application which will split the console in 2 "parts":

1 top area to print messages & 1 command prompt.

The printed messages are...

Yes it works.

Thank you

Good morning,

Using command
root@slackware:~# ps -e -O sz --sort sz

part of the output is:
PID SZ S TTY TIME COMMAND
...
57 358 S ? 00:00:00 /usr/sbin/syslogd
...

Thank all of you

Hi everybody


for file in *
#Bash performs filename expansion
#+ on expressions that globbing recognizes.
do

output="`grep -n "$1" "$file"`"
echo "$file: `expr "$output" : '\(^.*$\)'`"...

Thank you for your help.

I'm finaly droping signals.I have a solution using sockets that works with no problems on different machines.

Well here is something unexpected :confused: :

SIGRTMIN worked on the Linux 2.4.31 kernel of SlackWare 10.2
but
failed on the SUSE LINUX Enterprise Server 9 (x86_64) - Kernel 2.6.5-7.276-smp.

I putted printf & fflush statements for debugging purposes.The problem still exists without these statements..

I have a Linux 2.4.31 kernel, I'm using SlackWare 10.2 over VMware Workstation 5.5.I...

So it isn't a fault of mine. I'm working already on a solution based on sockets using select.Should I reject signals as solution to my problem ? Reability of delivery is important to me.What is your...

I just have this simple statements
tmp=sigqueue(getppid(),SIGUSR1,vsig);
close(handler.connfd);
printf("SERVER CHILD for %d: Out.Sigqueue returned %d\n",handler.id>0?handler.id:-handler.id,tmp);...

Hi everyone,

I have a process that forks many times.At a random time point the children must send a SIGUSR1 to the parent.To do that I'm using a pair of sigaction & sigqueue.However many signals...