Update for 4.3.10.
This commit is contained in:
parent
45ddd83526
commit
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2 changed files with 254 additions and 4 deletions
129
doc/CHANGES4.X
129
doc/CHANGES4.X
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@ -1,3 +1,128 @@
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Changes to Empire 4.3.10 - Fri Aug 24 17:26:56 UTC 2007
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* The custom table reader detects more errors.
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* Do not leak world creation time in files and fairland, because
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that facilitates attacks against the PRNG. This misfeature crept
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into 4.3.0.
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* Remove the ancient, crufty non-UCONTEXT system-dependent LWP code.
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Using it required manual hackery since 4.3.0, and it hasn't been
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missed.
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* Plug file descriptor leak in add command.
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* Don't kill player connections violently when their thread appears
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to be hung. Threads being aborted by update or shutdown could be
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misidentified as hung, and the violence could lead to resource
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leaks, locked out updates, and corrupted game state.
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* Fix LWP to wake up threads sleeping for a time reliably. Before,
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players with a sufficiently fast connection could starve out
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threads system threads, including the update.
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* Fix a class of bugs that made commands behave differently while the
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update is attempting to take control:
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- No MOB_ACCESS mobility was gained.
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- Telegrams were miscounted.
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- Bulletins got misfiled as production reports.
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- The navigate command ignored sail paths.
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- The declare command was more quiet, and declarations of war
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failed silently when SLOW_WAR was enabled.
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- Many messages got misdirected to bulletins.
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Some of these bugs go back all the way to Empire 2, ca 1995.
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* New deity command reload, effect similar to SIGHUP.
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* Not voting for a demand update no longer lets you veto further
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demand updates. This feature was flawed (it encourages players to
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vote late so that they can tactically vote no and thus build up
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veto rights), virtually unused, and buggy.
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* Fix zdone not to claim to have triggered an update when they're
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disabled.
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* New update scheduler and ETU clock:
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- New schedule file. See doc/schedule for how to use it. Replaces
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econfig keys update_policy, adj_update, update_times, hourslop,
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blitz_time. A change of schedule does not require a server
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restart.
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- The force command can no longer force updates in the future.
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Edit the schedule file for that.
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- New command show updates to show the update schedule. Obsoletes
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the update command.
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- New xdump game and xdump updates.
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- New utility program empsched to help test update schedules.
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- Replace option DEMANDUPDATE and econfig key update_demandpolicy
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by econfig key update_demand.
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- econfig key update_demandtimes no longer applies to scheduled
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demand updates.
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- You now receive new BTUs at the update in addition to login.
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- You now always gain the same BTUs and MOB_ACCESS mobility per
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turn, even when the update schedule changes, updates get missed,
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or unscheduled demand updates run.
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- Remove the mobupdate command, because porting it to the new ETU
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clock is not worth it.
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* Redesign of synchronization between commands, update and shutdown,
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and how updates are triggered:
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- Simplify update to a single thread waiting for the trigger.
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Before, three update threads had to perform a carefully
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choreographed dance to make updates happen. The dance relied on
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thread priorities for correctness, but they're only implemented
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by LWP. With pthreads and under windows, demand updates were
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prone to two update threads starting up concurrently. Even with
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LWP, forced and demand updates could lead to double updates.
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- Use a lock for synchronization: commands take it shared, update
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and shutdown take it exclusive. This makes update and shutdown
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block until all aborted commands terminated and gave up their
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lock. Before, they proceeded blindly after waiting two or one
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seconds respectively, which was cheesy and unsafe.
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- New commands no longer fail while the update is pending, they are
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delayed until after the update.
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- New commands can no longer start during shutdown. Before, they
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could, but risked getting killed violently, corrupting the game
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state.
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- Fix command execution so that commands blocked in writing
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redirections are abortable. The bug allowed players to delay
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update and shutdown indefinitely.
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- Fix shutdown not to let player threads block on output. This
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let players delay shutdown indefinitely.
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- Fix reading of player input not to block again after update or
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shutdown aborted it. The bug allowed players to delay update and
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shutdown indefinitely.
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* Thread priorities are only implemented by LWP and no longer used.
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With LWP, they let players with a sufficiently fast connection
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starve out the threads that clean the lost file and kill idle
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connections. Drop them.
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* Show nuke rounded required research incorrectly.
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* Log unprintable characters as octal escapes rather than question
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marks in the journal file.
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* The files program no longer changes permissions of existing files.
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* The files program now creates all files with permissions ug=rw and
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all directories ug=rwx, modified by umask.
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* Fix a bug that could make arm, disarm and nuke detonation work with
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a used-up nuke instead of the armed one. This could be abused to
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detonate nukes multiple times. Broken in 4.3.3.
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* Fix nuke detonation output for zero blast radius.
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* Plug memory leaks in thread code.
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* Fix a bug that made LWP I/O wakeup unreliable.
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* New march sub-command v for view.
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* Journal was initialized before threads were, which was wrong.
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* Fix server not to create a journal on SIGHUP when it is disabled.
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* shutdown 0 now requests immediate shutdown instead of cancellation
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of a pending shutdown. shutdown -1 now cancels.
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* flash and wall no longer split long message lines.
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* Fix a bug in collect that screwed up a fully collected loan instead
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of deleting it. The screwed up loan could not be sharked or
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collected, but it could be repaid.
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* Remove the wait command, it's been broken and restricted to deity
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since Empire 2, ca. 1995.
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* Budget failed to take sector production into account for predicting
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unit repairs. Before 4.3.6, this bug bit only when you fooled
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around with budget priorities.
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* When unit repairs is limited by materials, the efficiency gain is
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now rounded down.
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* Ship repairs outside harbors and plane repairs by carriers used to
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consume commodities when and as far as available. Now, they
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consume the same fraction of the real cost of each commodity,
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i.e. commodity use is limited by the most scarce commodity.
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Neither old nor new behavior make much sense, but the new code is
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simpler.
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* Code refactoring and cleanup, in particular to make the Windows
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port less ugly.
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* Portability fixes.
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* Info file and manual page updates. All manual pages are now
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installed in section 6.
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Changes to Empire 4.3.9 - Sat Jan 6 12:42:19 UTC 2007
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* Fix declare to prevent the deity from changing relations for a
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player to self. Allow the deity to set the relations of a player
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@ -5,8 +130,8 @@ Changes to Empire 4.3.9 - Sat Jan 6 12:42:19 UTC 2007
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* Fix arm not to put the same nuke on multiple planes (broken in
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4.3.3).
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* New option AUTO_POWER.
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* Repair allied land units.
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* Only repair owned and allied planes.
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* Sectors now repair allied land units.
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* Sectors now repair only own and allied planes.
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* Fix repair of planes on foreign carriers: repair allied planes,
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ignore the others. Before 4.3.3, carriers destroyed rather than
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repaired foreign planes. Since 4.3.3, foreign planes were treated
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129
info/Empire4.t
129
info/Empire4.t
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@ -7,6 +7,131 @@ new Empire4 Server. This outlines the various changes and how they
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will affect you, the player. These were coded as the Wolfpack project,
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and bug-reports should be sent to <wolfpack@wolfpackempire.com>.
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.NF
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Changes to Empire 4.3.10 - Fri Aug 24 17:26:56 UTC 2007
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* The custom table reader detects more errors.
|
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* Do not leak world creation time in files and fairland, because
|
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that facilitates attacks against the PRNG. This misfeature crept
|
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into 4.3.0.
|
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* Remove the ancient, crufty non-UCONTEXT system-dependent LWP code.
|
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Using it required manual hackery since 4.3.0, and it hasn't been
|
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missed.
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* Plug file descriptor leak in add command.
|
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* Don't kill player connections violently when their thread appears
|
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to be hung. Threads being aborted by update or shutdown could be
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misidentified as hung, and the violence could lead to resource
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leaks, locked out updates, and corrupted game state.
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* Fix LWP to wake up threads sleeping for a time reliably. Before,
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players with a sufficiently fast connection could starve out
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threads system threads, including the update.
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* Fix a class of bugs that made commands behave differently while the
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update is attempting to take control:
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- No MOB_ACCESS mobility was gained.
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- Telegrams were miscounted.
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- Bulletins got misfiled as production reports.
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- The navigate command ignored sail paths.
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- The declare command was more quiet, and declarations of war
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failed silently when SLOW_WAR was enabled.
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- Many messages got misdirected to bulletins.
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Some of these bugs go back all the way to Empire 2, ca 1995.
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* New deity command reload, effect similar to SIGHUP.
|
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* Not voting for a demand update no longer lets you veto further
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demand updates. This feature was flawed (it encourages players to
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vote late so that they can tactically vote no and thus build up
|
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veto rights), virtually unused, and buggy.
|
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* Fix zdone not to claim to have triggered an update when they're
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disabled.
|
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* New update scheduler and ETU clock:
|
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- New schedule file. See doc/schedule for how to use it. Replaces
|
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econfig keys update_policy, adj_update, update_times, hourslop,
|
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blitz_time. A change of schedule does not require a server
|
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restart.
|
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- The force command can no longer force updates in the future.
|
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Edit the schedule file for that.
|
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- New command show updates to show the update schedule. Obsoletes
|
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the update command.
|
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- New xdump game and xdump updates.
|
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- New utility program empsched to help test update schedules.
|
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- Replace option DEMANDUPDATE and econfig key update_demandpolicy
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by econfig key update_demand.
|
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- econfig key update_demandtimes no longer applies to scheduled
|
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demand updates.
|
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- You now receive new BTUs at the update in addition to login.
|
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- You now always gain the same BTUs and MOB_ACCESS mobility per
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turn, even when the update schedule changes, updates get missed,
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or unscheduled demand updates run.
|
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- Remove the mobupdate command, because porting it to the new ETU
|
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clock is not worth it.
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* Redesign of synchronization between commands, update and shutdown,
|
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and how updates are triggered:
|
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- Simplify update to a single thread waiting for the trigger.
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Before, three update threads had to perform a carefully
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choreographed dance to make updates happen. The dance relied on
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thread priorities for correctness, but they're only implemented
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by LWP. With pthreads and under windows, demand updates were
|
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prone to two update threads starting up concurrently. Even with
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LWP, forced and demand updates could lead to double updates.
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- Use a lock for synchronization: commands take it shared, update
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and shutdown take it exclusive. This makes update and shutdown
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block until all aborted commands terminated and gave up their
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lock. Before, they proceeded blindly after waiting two or one
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seconds respectively, which was cheesy and unsafe.
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- New commands no longer fail while the update is pending, they are
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delayed until after the update.
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- New commands can no longer start during shutdown. Before, they
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could, but risked getting killed violently, corrupting the game
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state.
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- Fix command execution so that commands blocked in writing
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redirections are abortable. The bug allowed players to delay
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update and shutdown indefinitely.
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- Fix shutdown not to let player threads block on output. This
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let players delay shutdown indefinitely.
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- Fix reading of player input not to block again after update or
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shutdown aborted it. The bug allowed players to delay update and
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shutdown indefinitely.
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* Thread priorities are only implemented by LWP and no longer used.
|
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With LWP, they let players with a sufficiently fast connection
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starve out the threads that clean the lost file and kill idle
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connections. Drop them.
|
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* Show nuke rounded required research incorrectly.
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* Log unprintable characters as octal escapes rather than question
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marks in the journal file.
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* The files program no longer changes permissions of existing files.
|
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* The files program now creates all files with permissions ug=rw and
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all directories ug=rwx, modified by umask.
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* Fix a bug that could make arm, disarm and nuke detonation work with
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a used-up nuke instead of the armed one. This could be abused to
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detonate nukes multiple times. Broken in 4.3.3.
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* Fix nuke detonation output for zero blast radius.
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* Plug memory leaks in thread code.
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* Fix a bug that made LWP I/O wakeup unreliable.
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* New march sub-command v for view.
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* Journal was initialized before threads were, which was wrong.
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* Fix server not to create a journal on SIGHUP when it is disabled.
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* shutdown 0 now requests immediate shutdown instead of cancellation
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of a pending shutdown. shutdown -1 now cancels.
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* flash and wall no longer split long message lines.
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* Fix a bug in collect that screwed up a fully collected loan instead
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of deleting it. The screwed up loan could not be sharked or
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collected, but it could be repaid.
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* Remove the wait command, it's been broken and restricted to deity
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since Empire 2, ca. 1995.
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* Budget failed to take sector production into account for predicting
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unit repairs. Before 4.3.6, this bug bit only when you fooled
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around with budget priorities.
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* When unit repairs is limited by materials, the efficiency gain is
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now rounded down.
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* Ship repairs outside harbors and plane repairs by carriers used to
|
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consume commodities when and as far as available. Now, they
|
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consume the same fraction of the real cost of each commodity,
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i.e. commodity use is limited by the most scarce commodity.
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Neither old nor new behavior make much sense, but the new code is
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simpler.
|
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* Code refactoring and cleanup, in particular to make the Windows
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||||
port less ugly.
|
||||
* Portability fixes.
|
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* Info file and manual page updates. All manual pages are now
|
||||
installed in section 6.
|
||||
|
||||
Changes to Empire 4.3.9 - Sat Jan 6 12:42:19 UTC 2007
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* Fix declare to prevent the deity from changing relations for a
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player to self. Allow the deity to set the relations of a player
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|
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@ -14,8 +139,8 @@ Changes to Empire 4.3.9 - Sat Jan 6 12:42:19 UTC 2007
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* Fix arm not to put the same nuke on multiple planes (broken in
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||||
4.3.3).
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||||
* New option AUTO_POWER.
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||||
* Repair allied land units.
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||||
* Only repair owned and allied planes.
|
||||
* Sectors now repair allied land units.
|
||||
* Sectors now repair only own and allied planes.
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* Fix repair of planes on foreign carriers: repair allied planes,
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ignore the others. Before 4.3.3, carriers destroyed rather than
|
||||
repaired foreign planes. Since 4.3.3, foreign planes were treated
|
||||
|
|
|
|||
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