That seems an awkward thing to do in shell. It'd also make it difficult to run two instances of sleep. I'd write it in C:
Run it and hit ctrl-C, and it will show a prompt telling you how much is left then ask for an offset in seconds. A positive number of seconds will add time, a negative number will subtract time. It calculates all this time relative to the program start, so a 'resleep 90', ctrl-c, then adding 25 will have it end precisely 115 seconds after it started even though some seconds may have been spent waiting for you to type. If you hit ctrl-C again instead of entering an offset, it just quits.
Last edited by Corona688; 09-25-2009 at 06:49 PM..
If I want a script to sleep for less than a second, would I use a decimal? In other words, if I wanted my script to sleep for 1/4 of a second, would I say, SLEEP .25 ?? (5 Replies)
Does anyone know a way to sleep less than 1 second?
Sometimes when I write scripts that iterates a loop many times it would be
nice to slow things down, but sometimes 1 second is too much. (9 Replies)
Hey everyone, just entering the linux world, I need some help with a shell script i'm trying to write, the purpose is to check every 10 minutes what was the last time a certain file was modified, and if there is a connection to the server at this moment send an email with the date of the... (2 Replies)
This is the gdb backtrace.
^C
Program received signal SIGINT, Interrupt.
0xffffe424 in __kernel_vsyscall ()
(gdb) bt
#0 0xffffe424 in __kernel_vsyscall ()
#1 0xb7e56a70 in __nanosleep_nocancel () from /lib/libc.so.6
#2 0xb7e568bb in __sleep (seconds=0) at sleep.c:138
#3 0x080496d5 in... (6 Replies)
Hi All,
I am new to Unix , there i am facing one problem with sleep command. that is ..
in while loop i have defined sleep function ..
my condition is like this
while #i knew this is infinite loop
do
sleep 200
echo "hello "
done.
this condition will never become .. true... (3 Replies)
Hi,
I have a script that runs a process at the beginning and I want to sleep/wait until this process is finished and then continue with the rest of the script. I am trying with this, but it is not working:
process=`ps -ef | grep "proc_p01 -c" | grep -v grep | wc -l`
if ; do
sleep 10
done... (7 Replies)
Hello Im using geany to write my c codes. Below is my code to make the internal LED of beaglebone flashing. But i cant seem to use the sleep or delay to make the program wait for a couple of miliseconds. I've included all include files that i can find but none of it solve the problem. Any help is... (1 Reply)
Hi , I have a doubt with signals and sleep function.
In a program i have this
while(1)
{
//do some work
sleep(1);
}And in a thread i have something like this
union sigval data;
char message;
char msg;
data.sival_int=0;
while(1)
{
... (4 Replies)
Discussion started by: bacesado
4 Replies
LEARN ABOUT DEBIAN
gfs_pio_readline
GFS_PIO_READLINE(3)GFS_PIO_READLINE(3)NAME
gfs_pio_readline - read one line
SYNOPSIS
#include <gfarm/gfarm.h>
char *gfs_pio_readline (GFS_File f, char **bufp, size_t *sizep, size_t *lenp);
DESCRIPTION
gfs_pio_readline() reads one line from the file specified by the parameter gf.
Parameter bufp specifies an address of a pointer variable initialzed by NULL at first. gfs_pio_readline() allocates a buffer for I/O
dynamically, and stores the address of the buffer to this variable pointed by bufp. Parameter sizep specifies an address of a size_t vari-
able initialized by 0. This size_t variable is used to record the size of the buffer. Or, you can specify a buffer allocated by malloc(3)
in the variable pointed by the parameter bufp. In this case, you have to specify the size of the allocated buffer by the parameter sizep.
If the length of the line exceeds the size of the buffer, the buffer will be automatically realloc(3)ed, and the variable pointed by bufp
and sizep will be updated respectively. Note that you are responsible to free(3) this buffer.
This function returns the length of the line to a variable pointed by the parameter lenp. This length includes newline character.
Just like gfs_pio_gets(3), this function doesn't remove newline character at the end of lines. Also, this function always appends '