【转帖】problems locking file from web service
 

problems locking file from web service
the calls to lock a file require a windows handle, however i am trying to lock the file from a web service using the pdmworks api (no front end). i have tried "nothing" and 0 for a handle, but the code hangs at the call when on the server. any help would be appreciated.
edmfile = vault.getfilefrompath(path, edmfolder)
if edmfile is nothing then
log.debug("file not found")
return false
end if
if lockrequest then
log.debug("attempting to lock")
if not edmfile.islocked then
' lock
edmfile.lockfile(edmfolder.id, nothing)
else
log.debug("file is already locked ... ignoring request")
end if
else
log.debug("attempting to unlock")
if edmfile.islocked then
' unlock
edmfile.unlockfile(edmfolder.id, nothing)
else
log.debug("file is not currently locked ... ignoring request")
end if
end if
btw, if i put the following code in a forms project it locks and unlocks fine even without a handle
dim vault as iedmvault5
dim edmfolder as iedmfolder5
dim edmfile as iedmfile5
dim lockrequest as boolean = true
vault = new edmvault5
vault.login("test", "test", "vault")
edmfile = vault.getfilefrompath("c:\vault\arrow.sldprt", edmfolder)
if edmfile is nothing then
return
end if
if lockrequest then
if not edmfile.islocked then
' lock
edmfile.lockfile(edmfolder.id, nothing)
end if
else
if edmfile.islocked then
' unlock
edmfile.unlockfile(edmfolder.id, nothing)
end if
end if
in all likelihood your problem has to do with permissions. i spent the better part of a day trying to figure this out with my own web service, and what i ended up doing was creating a new application pool and virtual app for the web service and having the service and pool run under a user account and not the default network service.
quick