Hi,
I noticed the following when using SVDRP: With the command NEWT, you can't create a timer if there already exists a timer for the same channel, day, start time and stop time. But you can create some dummy timer and then use the MODT command to make it identical to the existing timer. Here is a sample session:
malte@spiro:~$ telnet louie 6419 Trying 10.0.1.208... Connected to louie.forkel.lan. Escape character is '^]'. 220 louie SVDRP VideoDiskRecorder 1.7.28; Thu Dec 13 20:48:34 2012; UTF-8 newt 1:148:2012-12-14:1800:1900:50:99:first: 250 1 1:148:2012-12-14:1800:1900:50:99:first: newt 1:148:2012-12-14:1800:1900:50:99:second: 550 timer already defined: 1 1:148:2012-12-14:1800:1900:50:99:first: lstt 250 1 1:148:2012-12-14:1800:1900:50:99:first: newt 1:148:2012-12-14:1800:1859:50:99:second: 250 2 1:148:2012-12-14:1800:1859:50:99:second: lstt 250-1 1:148:2012-12-14:1800:1900:50:99:first: 250 2 1:148:2012-12-14:1800:1859:50:99:second: modt 2 1:148:2012-12-14:1800:1900:50:99:second: 250 2 1:148:2012-12-14:1800:1900:50:99:second: lstt 250-1 1:148:2012-12-14:1800:1900:50:99:first: 250 2 1:148:2012-12-14:1800:1900:50:99:second: 221 louie closing connection Connection closed by foreign host.
Looking at svdrp.c and timers.c, cSVDRP::CmdNEWT will use cTimers::GetTimer to look for an existing timer, cSVDRP::CmdMODT does not seem to perform a check.
I'm not sure about the rationale. What would I break if I dropped the test in cSVDRP::CmdNEWT? Are there better workarounds than creating a dummy timer?
Thanks, Malte