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CVSROOT: /cvs
Module name: cvsnt
Changes by: arthur.barrett at march-hare.com Mon May 10 03:20:30 2010
On host: 2002:71c0:aa2:1:20c:29ff:fe0d:b365
Directory: cvsnt/lockservice
M LockParse.cpp CVSNT_BRANCH_2_8_01_3761 1.8.2.39.6.8.2.2 -> 1.8.2.39.6.8.2.3 Bug Id: 5918
Directory: cvsnt/protocols
M sspi.cpp CVSNT_BRANCH_2_8_01_3761 1.25.2.49.6.6 -> 1.25.2.49.6.6.2.1 Bug Id: 5918
Directory: cvsnt/src
M cvs.h CVSNT_BRANCH_2_8_01_3761 1.93.2.208.6.29.2.3 -> 1.93.2.208.6.29.2.4 Bug Id: 5918
M lock.cpp CVSNT_BRANCH_2_8_01_3761 1.26.2.49.8.2.2.2 -> 1.26.2.49.8.2.2.3 Bug Id: 5918
M main.cpp CVSNT_BRANCH_2_8_01_3761 1.71.2.151.6.54.2.2 -> 1.71.2.151.6.54.2.3 Bug Id: 5918
M rcs.cpp CVSNT_BRANCH_2_8_01_3761 1.80.2.214.4.54.2.1 -> 1.80.2.214.4.54.2.2 Bug Id: 5918
M server.cpp CVSNT_BRANCH_2_8_01_3761 1.106.2.210.6.99.2.4 -> 1.106.2.210.6.99.2.5 Bug Id: 5918
Directory: cvsnt/windows-NT
M config.h CVSNT_BRANCH_2_8_01_3761 1.55.2.60.6.5.4.2 -> 1.55.2.60.6.5.4.3 Bug Id: 5918
M filesubr.cpp CVSNT_BRANCH_2_8_01_3761 1.24.2.45.8.2.2.5 -> 1.24.2.45.8.2.2.6 Bug Id: 5918
M win32.cpp CVSNT_BRANCH_2_8_01_3761 1.72.2.150.6.44.2.5 -> 1.72.2.150.6.44.2.6 Bug Id: 5918
Log message:
Server modified:
* pass filename/mode/FILE* to do_lock_file() and then to do_lock_server()
if do_lock_server() loops trying to establish a lock then:
close file before sleep; open after sleep
* lock server now tracks the process id (PID) of the client process
(sill also tracks the IP address and username)
* if username blank (eg: 'at' jobs 'SYSTEM') gives real name to lock server
These new settings control the behaviour:
LockFailReopen = 1 - close/open file handle between lock retries
RCSOpenRetry = 30 - number of times to retry the open
MoveSleepWait = 100 - on windows - number of milliseconds between movefileex()
MoveSleepRetry = 300 - on windows - number of movefileex retries
I've tested this on Windows XP x64 with a copy of the Paris+Scotty
repositories with three (3) concurrent rtag operations. This
combination previously would not finish either due to
'cannot rename file' errors or other timeouts. With the new
default values this test completes successfully.
Analysis of servertrace shows that MoveFileEx() still fails from
time-to-time but a single 1/10th of a second wait is usually sufficient
to rectify it (an wait's of less than 1 second are not reported to the
user). Normal deadlock waits occur more often but with three
concurrent tags starting at the same time on a mulit-cpu server
this is to be expected.
Example:
cvsnt rtag: [13:05:32] waiting for SYSTEM on acerW64lap's lock (#4 pid=5416) in /cvsrepo/cvsnt/build.h,v
cvsnt rtag: [13:05:33] obtained lock in build.h,v
cvsnt rtag: [13:05:33] waiting for SYSTEM on acerW64lap's lock (#4 pid=5416) in /cvsrepo/cvsnt/config.sub,v
cvsnt rtag: [13:05:35] obtained lock in config.sub,v