empire/empserver
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Update for 4.3.10.

Browse source
This commit is contained in:
Markus Armbruster 2007-08-24 17:28:47 +00:00
parent 45ddd83526
commit eef82eb66b
2 changed files with 254 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

129
doc/CHANGES4.X
View file

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

129
info/Empire4.t
View file

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