more than one instance

[frank]

use r' ps -ef | grep "python\\s*lrcShow-X\\.py" | wc -l', but lrcShow-X still could be run more than one instance.

gentoo python-2.6

[OutLikeAShoe (outlikeashoe)]

Could you please post the output of "ps -ef" ?
So I'll change the RegEx.

[frank (xujia19)]

frank@localhost ~ $ ps -ef
UID PID PPID C STIME TTY TIME CMD
root 1 0 0 20:26 ? 00:00:00 init [3]
root 2 0 0 20:26 ? 00:00:00 [kthreadd]
root 3 2 0 20:26 ? 00:00:00 [migration/0]
root 4 2 0 20:26 ? 00:00:00 [ksoftirqd/0]
root 5 2 0 20:26 ? 00:00:00 [watchdog/0]
root 6 2 0 20:26 ? 00:00:00 [events/0]
root 7 2 0 20:26 ? 00:00:00 [khelper]
root 12 2 0 20:26 ? 00:00:00 [async/mgr]
root 120 2 0 20:26 ? 00:00:00 [kblockd/0]
root 123 2 0 20:26 ? 00:00:00 [kacpid]
root 124 2 0 20:26 ? 00:00:00 [kacpi_notify]
root 125 2 0 20:26 ? 00:00:00 [kacpi_hotplug]
root 194 2 0 20:26 ? 00:00:00 [ksuspend_usbd]
root 199 2 0 20:26 ? 00:00:00 [khubd]
root 202 2 0 20:26 ? 00:00:00 [kseriod]
root 259 2 0 20:26 ? 00:00:00 [khungtaskd]
root 260 2 0 20:26 ? 00:00:00 [pdflush]
root 261 2 0 20:26 ? 00:00:00 [pdflush]
root 262 2 0 20:26 ? 00:00:00 [kswapd0]
root 263 2 0 20:26 ? 00:00:00 [aio/0]
root 264 2 0 20:26 ? 00:00:00 [nfsiod]
root 863 1 0 20:26 ? 00:00:00 /sbin/v86d
root 864 2 0 20:26 ? 00:00:00 [cqueue]
root 1040 2 0 20:26 ? 00:00:00 [kpsmoused]
root 1043 2 0 20:26 ? 00:00:00 [kstriped]
root 1045 2 0 20:26 ? 00:00:00 [kondemand/0]
root 1046 2 0 20:26 ? 00:00:00 [kconservative/0]
root 1073 2 0 20:26 ? 00:00:00 [usbhid_resumer]
root 1078 2 0 20:26 ? 00:00:00 [rpciod/0]
root 1085 2 0 20:26 ? 00:00:00 [reiserfs/0]
root 1227 1 0 20:26 ? 00:00:00 /sbin/udevd --daemon
root 1611 1 0 20:26 ? 00:00:00 /sbin/mount.ntfs-3g /dev/hda6 /mnt/hda6 -o
101 2146 1 0 20:26 ? 00:00:00 /usr/bin/dbus-daemon --system
root 2166 1 0 20:26 ? 00:00:00 supervising syslog-ng
root 2167 2166 0 20:26 ? 00:00:00 /usr/sbin/syslog-ng
root 2184 1 0 20:26 ? 00:00:00 /usr/sbin/console-kit-daemon
102 2265 1 0 20:26 ? 00:00:00 /usr/sbin/hald --use-syslog --verbose=no
root 2266 2265 0 20:26 ? 00:00:00 hald-runner
root 2291 2266 0 20:26 ? 00:00:00 hald-addon-input: Listening on /dev/input/
root 2299 2266 0 20:26 ? 00:00:00 hald-addon-storage: polling /dev/hdc (ever
root 2308 2266 0 20:26 ? 00:00:00 /usr/libexec/hald-addon-cpufreq
102 2309 2266 0 20:26 ? 00:00:00 /usr/libexec/hald-addon-acpi
root 2465 1227 0 20:26 ? 00:00:00 /sbin/udevd --daemon
root 2476 1 0 20:27 ? 00:00:00 /usr/sbin/p...

[OutLikeAShoe (outlikeashoe)]

> frank 2983 2909 4 20:33 pts/2 00:00:00 /usr/bin/python2.6 ./lrcShow-X.py

The regex only searches for "python", in your case it's "python2.6".

We can match for "python(version)?".
In this case the regex should be something like
"python[\\d\\.]*\\s*lrcShow-X\\.py"
Please try if it matches, if so we can update the regex.

[OutLikeAShoe (outlikeashoe)]

Oh.. another thing: in your case the regex does not match yet, the path to lrcShow-X.py is "./lrcShow-X.py" and the regex onlye searches for "lrcShow-X.py".

Now.. I think the best thing is to do a step backward, using the lock file, but instead of only creating it, we'll write into that the PID (process identifier) of the running lrcShow-X instance.

So when trying to create another instance we should only check if a process with that PID exists and matches "lrcShow-X" without checking it with a strong regex.

[frank (xujia19)]

to keep simple, how about just keep the previous code "grep python | grep lrcShow-X" ?

[babiloe (babiloe)]

hmm i guess i have same problem. or not?
Just installed ubuntu 9.10 with banshee audio player and py-qt4 dependency for installing lrcshow-x.
run banshee than run ./lrcshow-x.py on terminal, .the lrcshow-x came with another pop-up of new banshee audio player.
So 2 banshee audio player came out, no connectivity between them.
the lrcshow-x works with the new banshee that came pop-up. like the first audio player just fishin' the lrcshow to came out.

[frank (xujia19)]

Hi babiloe:

I really have no idea about this issue. lrcShow-X is impossible to start another banshee instance. You have this problem with which version of lrcShow-X, or all version? And is there extra output in terminal?