10-12-2011
Db polling...
Hi!
Im trying to make a program that polls a mysqlDB every 5 minutes.
the poll checks a scheduletable in the dB and exicutes a function if
there was a "go" in the scheduletable, and if it retrives a "no go" from the table
it should just wait for another 5 minutes before re polling the DB,
How would you guys do the "Poll Loop?".. im totaly stuck on this.
Ohh and off course, c or c++ is the language and im on osx and/or linux..
10 More Discussions You Might Find Interesting
1. Programming
How do I write a shell script to perform polling just like what happens with Microsoft mail. i.e display an alert box. (1 Reply)
Discussion started by: brianmu
1 Replies
2. Shell Programming and Scripting
Hello, need some ideas on the control statement for a script that will watch a directory, looking for any duplicate records as they are added.
I was thinking about a process that would watch the dir in a time window. Whenever a new line or entry was made I would grep the existing file for any... (1 Reply)
Discussion started by: dnidiffer
1 Replies
3. Programming
Hi,
Can you please help me in implementing a timer based polling for function in C? ie. the function should be called in say 30secs(when 30secs has lapsed).
Thanks (7 Replies)
Discussion started by: naan
7 Replies
4. UNIX for Advanced & Expert Users
Hi,
I'm after a bit of advice for the best way to collect files from an ftp server via a unix process. The main issue here is the frequency, the job needs to check for files every minute or so between 8am and 8pm and pull them down to the box if there is anything there.
Originally the... (6 Replies)
Discussion started by: Peejay
6 Replies
5. UNIX for Advanced & Expert Users
Hi all,
I have a directory where some process is keeping incremental/new log files. I need to code a program which will periodically poll this directory and if it founds a new file arrived then copy that new file to some other specific directory.
We are OK with this polling approach. I just... (3 Replies)
Discussion started by: zing_foru
3 Replies
6. Shell Programming and Scripting
Hi,
My os is sun solaris 5.10 and Korn shell scripting.
I have a file name like CCNA_EARLY_SWP.w062309
where 062309 is date in mmddyy .This is the value date of the file.(will
I need to check continously from 5.00 - 7.00 am daily for this file .
If the file has not come at 5 am or 7am... (4 Replies)
Discussion started by: manoj39
4 Replies
7. Shell Programming and Scripting
I plan to run a script which will run in background and at predefined times send mails to user . I dont have acees to autosys/ Cron / at jobs
My loop works like this
while (true)
do
getx_time=`date +%H%M`
if ; then
script1.sh
mail_sent_flag=1
elif ; then
script2.sh... (1 Reply)
Discussion started by: ultimatix
1 Replies
8. Solaris
Is it possible to change the ntp poll manually.
I notice that ntp poll is changing autimatically. (1 Reply)
Discussion started by: ningy
1 Replies
9. HP-UX
Hi Guys,
we are planning to enable polling target on our SG in reference to this link
MC/ServiceGuard: Subnet Goes Down when one of the Cluster Node is Down - HP Customer Care (United States - English)
since our server is already in production can we apply the changes with ex. "cmapplyconf... (1 Reply)
Discussion started by: batas
1 Replies
10. Shell Programming and Scripting
HI
I need some help on this below one
Have summuary file coming on daily basis with list of file names and count ,if the summuary file not exist ,pool it for every 5 mins till it arrives .Once arrived remove first and last line from the file and check all the files in respective director all... (12 Replies)
Discussion started by: mohan705
12 Replies
LEARN ABOUT CENTOS
shutdown
SHUTDOWN(8) shutdown SHUTDOWN(8)
NAME
shutdown - Halt, power-off or reboot the machine
SYNOPSIS
shutdown [OPTIONS...] [TIME] [WALL...]
DESCRIPTION
shutdown may be used to halt, power-off or reboot the machine.
The first argument may be a time string (which is usually "now"). Optionally, this may be followed by a wall message to be sent to all
logged-in users before going down.
The time string may either be in the format "hh:mm" for hour/minutes specifying the time to execute the shutdown at, specified in 24h clock
format. Alternatively it may be in the syntax "+m" referring to the specified number of minutes m from now. "now" is an alias for "+0",
i.e. for triggering an immediate shutdown. If no time argument is specified, "+1" is implied.
Note that to specify a wall message you must specify a time argument, too.
If the time argument is used, 5 minutes before the system goes down the /run/nologin file is created to ensure that further logins shall
not be allowed.
OPTIONS
The following options are understood:
--help
Prints a short help text and exits.
-H, --halt
Halt the machine.
-P, --poweroff
Power-off the machine (the default).
-r, --reboot
Reboot the machine.
-h
Equivalent to --poweroff, unless --halt is specified.
-k
Do not halt, power-off, reboot, just write wall message.
--no-wall
Do not send wall message before halt, power-off, reboot.
-c
Cancel a pending shutdown. This may be used cancel the effect of an invocation of shutdown with a time argument that is not "+0" or
"now".
EXIT STATUS
On success, 0 is returned, a non-zero failure code otherwise.
SEE ALSO
systemd(1), systemctl(1), halt(8), wall(1)
systemd 208 SHUTDOWN(8)