Demos on servers

[JB|JustinBieber]

I run 3 servers and sometimes i will be playing in one and at the end of the game I will request the demo from the game that i just played in. Instead of giving me the demo i ask for it gives me the demo of my other server that was being played in at the same exact time. Is this a typical problem or what? This has happened to me multiple times and I have made sure i was downloading the right demo
Please help, Thanks XD

[jamz]

I would guess that this happens if you have all the servers running from the same binary (executable file). Try making duplicates of the file (eg. ac_server1.exe, ac_server2.exe, ac_server3.exe) and run them separately.

[tempest]

Are you sure? Because AFAIK the demos you can request in-game are stored in memory, so it's (yes, really) impossible that another server instance reads that. Even if it tried to for some reason, that would result in a segfault.

[JB|JustinBieber]

Would you like me to show you? Im sure you would get the same result i do when trying to get a demo

[tempest]

I'm not saying you're just talking shit or anything like that. But, as far as I can see, it's just impossible.

EDIT: I just tried it, and everything worked as it should (server: Justin Bieber).

[jamz]

Tempest, I don't doubt that you know more than me about what's happening at the software/hardware interface level, but it does happen; trust me. Here's my client log from when I joined a .:*rAgE*:.GODSPEED server to get a demo back in December:

[SELECT ALL] Code:

MOTD:
.:*rAgE*:. GODSPEED by armed |PUBLIC|
***CHEATING/HACKING/ABUSING/RACISM/TKING/IMPERSONATING=BLACKLIST*** -JGAN
rage-assaultcube.webs.com
new round starting... fight!
listing demos...
Choose the demo number you wish to download, as show below in the console.
1. 12/14/10 17:49:14: ctf, ac_iceroad, 1.04MB
2. 12/14/10 17:59:24: team deathmatch, ac_rattrap, 1.10MB
3. 12/14/10 18:11:34: hunt the flag, ac_power, 1.67MB
4. 12/14/10 18:23:44: hunt the flag, ac_keller, 1.22MB
5. 12/14/10 18:24:44: keep the flag, ac_elevation, 1.34MB, 8 mr
getting demo 4...
writing to file: D:\Program Files\AssaultCube_v1.1\demos\HTF_ac_keller_2010.12.14_1823.dmo
received demo "demos\HTF_ac_keller_2010.12.14_1823.dmo"

Here's a screenshot of the demo file that was downloaded:

The "[nc | server I - camping allowed]" server is on the same IP.

[Zarjio]

I had the same problem when I was running the 5 U|Canada servers way back when. I would get random demos from other servers when requesting a demo.

[eftertanke]

***snipped***

That has happened to me on multiple occasions. I believe it was on a *rAgE* server the most recent time(s).

[tempest]

EDIT: snipsnip, forget what I said. I think I know what's going on now. While recording a demo, the server writes the recorded data to "demos/demorecord". So if you run multiple servers from the same directory, that causes a conflict. However, I don't know for sure why you get a usable demo at all - wouldn't it be just junk?

EDIT2: This only "works" on Windows, since on UNIXoid systems the POSIX command tmpfile() is used, where "The filename is guaranteed to be different from any other existing file."

Tempest, I don't doubt that you know more than me about what's happening at the software/hardware interface level

Obviously, I don't/didn't :P

[JGAN]

yea, those servers have a tendency to do that :/ sorry

[JB|JustinBieber]

I'm not saying you're just talking shit or anything like that. But, as far as I can see, it's just impossible.

EDIT: I just tried it, and everything worked as it should (server: Justin Bieber).

Thats the problem I am having tempest...I keep getting the Justin Bieber server demos, Try going into a ~M-M~ and get a demo from there, you will get what was going on in the JB server.
And also you mentioned Windows but i Use Mac O.S.

[tempest]

Try going into a ~M-M~ and get a demo from there, you will get what was going on in the JB server.

So that happens every time, or just most times?

Just for clarification: the file name on the demo you get is correct, but that file's content is actually the wrong demo? Hmmmh...

And also you mentioned Windows but i Use Mac O.S.

Clarification again: does the server run on a Mac?

[JB|JustinBieber]

Everytime ive done it, it happens o.O and yes it is the right NAME but not the right demo :(

sorry, I downloaded the demos on Mac but I run the servers on Windows XP

[tempest]

sorry, I downloaded the demos on Mac but I run the servers on Windows XP

Alright, then that is indeed the problem.
Devs, fix pl0x. filestream::opentemp() should create unique files on Windows (can't use tmpfile() there since that needs admin privileges - damn MS retards)