flawed. Firstly, when player_kill_idle() ran before the player thread
could react to being aborted by update or shutdown, player_kill_idle()
incorrectly diagnosed it as hung. Secondly, terminating hung threads
leaks resources and can leave a stale play_lock behind. It could
perhaps even corrupt game state. It might salvage some scenarios, but
makes others worse. Not worth it.
supports priorities. Update synchronization used to rely on them,
which naturally worked only with LWP (#1504036). With that fixed, no
uses of priorities remained, but a minor bug did: players could starve
out threads with priorities below PP_PLAYER, i.e. delete_lostitems()
and player_kill_idle(). Closes#1458175:
(empth_create): Remove parameter prio. Callers changed. Also gets
rid of misleading comments in pthread.c and ntthread.c.
(PP_MAIN, PP_UPDATE, PP_SHUTDOWN, PP_SCHED, PP_TIMESTAMP, PP_PLAYER)
(PP_ACCEPT, PP_KILLIDLE): Remove.
(empth_init, empth_create) [EMPTH_LWP]: Pass priority 1.
(lndstr, plnstr, sctstr, shpstr): Change timestamp members lnd_access,
pln_access, sct_access, shp_access from real time (time_t) to ETUs
within a turn (short).
(land_ca, plane_ca, sect_ca, ship_ca): Update accordingly.
(build_ship, build_land, build_bridge, build_plane, build_tower)
(explore, check_trade, bsanct, takeover, takeover_ship)
(takeover_land): Use game_tick_to_now() instead of time() to update
the timestamp. Change check_trade(), takeover_ship(), takeover_land()
to do that only when MOB_ACCESS is enabled, for consistency.
(lupgr, supgr, pupgr, takeover_ship): Don't touch the timestamp where
mobility isn't touched either.
(sct_do_upd_mob, shp_do_upd_mob, lnd_do_upd_mob, pln_do_upd_mob): Use
game_tick_to_now() instead of increase_mob() to compute ETUs since
the timestamp and update the timestamp. Closes#1012699.
(increase_mob): Remove.
(mob_sect, mob_ship, mob_land, mob_plane): sct_do_upd_mob() & friends
no longer do the right thing at the update. Use game_reset_tick() and
pass its result directly to do_mob_sect() & friends. This is only
correct when argument is etu_per_update, which it always is. Remove
parameter. Callers changed.
(do_mob_sect, do_mob_ship, do_mob_land, do_mob_plane): Oops on
negative argument.
(mob_acc_globals, timestampfil, mobupdate, updating_mob)
(update_all_mob, timestamp_fixing, update_timestamps, mobility_check):
The mobupdate command was important to let deities manually
synchronize mobility updating with updates. That's no longer needed.
The code behind it is somewhat hairy and ugly, and updating it to work
with the Empire clock is just not worth it. Remove. Users changed.
(player_coms): Update accordingly.
(upda): Remove display of mobility updating state.
(mobility_init): No need to fix up mobility on startup, as the Empire
clock runs normally even when the server is down. Remove. Caller
changed.
(schedulefil): New.
(set_dirs, set_paths): Rename. Initialize schedulfil.
(read_schedule): New. Can read several updates, which will be used in
later changesets.
(update_time): Change to array. Will be used in later changesets.
(update_schedule_anchor): New.
(update_init): Initialize it.
(update_get_schedule): New.
(update_init): Call it to initialize update_time[].
(update_sched): Rewrite.
(update_forced, update_wanted): Replace.
(update_reschedule): New.
(main): Call it on SIGHUP to reload the schedule.
(update_trigger, update_force, force, player_coms): Drop force's
capability to schedule updates in the future, because it's not worth
the trouble to implement again. Deities can simply edit the schedule
file to schedule updates. Remove update_force() and
update_trigger()'s parameter.
(upda): Update for new scheduler. Take care to keep output the same
as far as possible, even though it's ugly, to avoid breaking clients.
(update_policy, adj_update, update_times, hourslop, blitz_time):
econfig keys removed.
(update_demand, UPD_DEMAND_NONE, UPD_DEMAND_SCHED, UPD_DEMAND_ASYNC)
(update_demandpolicy, UDP_NORMAL, UDP_TIMES, UDP_NORMAL, UDP_BLITZ)
(UDP_MAX, UDP_DEFAULT, UDDEM_TMCHECK, UDDEM_COMSET, UDDEM_DISABLE)
(UDDEM_MAX, UDDEM_DEFAULT): econfig key and values replaced. Users
changed. wantupd.h is now empty, remove.
(demand_check): External linkage.
(update_policy_check): Now pointless, remove.
(is_daytime_near, min_to_next_daytime, regular_update_time)
(scheduled_update_time, next_scheduled_time, updatetime)
(next_update_time, next_update_check_time): Unused, Remove.
(demand_check, demandupdatecheck): Move call of demand_update_time()
from demand_check(), which controls all demand updates, to
demandupdatecheck(), which controls only unscheduled ones. Fixes
update command not to lie about the next scheduled demand update.
(demandupdatecheck): Check updates_disabled() so that zdone no longer
claims to trigger an update when it can't.
empth_init(), because writing calls empth_self(). Move call of
journal_startup().
(ef_close_srv, finish_server, panic): Move call of journal_shutdown()
for symmetry.
(journal_reopen): New.
(main): Use it. Fixes failure to obey !keep_journal.
(journal_open): Internal linkage, changed semantics and return value.
Callers changed.
(journal_close): One caller left, inline and remove.
shutdown block until all aborted commands terminated and gave up their
lock. Remove the cheesy one second wait for commands to finish. This
also locks out further commands to execute during shutdown. However,
it also makes it impossible to kill hung player threads here. Rely on
player_kill_idle() for that. That doesn't quite work right now,
because it leaves a stale shared lock behind, which blocks shutdown.
other. Ensure headers in include/ can be included in any order
(except for econfig-spec.h, which is special). New header types.h to
help avoid inclusion cycles. Sort include directives. Remove some
superflous includes.
LinuxThreads, use exit() where possible:
(shutdwn): No longer a signal handler, can safely call exit().
(main, loc_NTInit): No obvious reason for not using exit().
(keep_journal): New econfig key.
(player_main): Log player login and logout.
(recvclient): Log player input.
(ef_open_srv, ef_close_srv): Log startup and shutdown.
(update_main): Log update.
Support the common SIGHUP log rotation idiom:
(empth_wait_for_shutdown, empth_wait_for_signal): Rename.
[EMPTH_LWP, EMPTH_POSIX] (empth_init, empth_wait_for_signal): Wait for
SIGHUP as well.
(main) [SIGHUP]: Reopen journal when empth_wait_for_signal() returns
SIGHUP.
(empth_wait_for_shutdown): New.
(main): Use it to wait for shutdown signal, then shut down. Closes
#770492.
(empth_exit): Remove the weird special case for main thread.
Implement empth_wait_for_shutdown() for EMPTH_LWP:
[EMPTH_LWP] (lwpInitSigWait, lwpSigWait, lwpSigWakeup): New.
Declaration of lwpSigWait was accidentally committed in the previous
revision of lwp.h.
[EMPTH_LWP] (lwpInitSystem): New parameter waitset, pass it on to
lwpInitSigWait().
[EMPTH_LWP] (lwpReschedule): Call lwpSigWakeup().
[EMPTH_LWP] (empth_init): Declare signals needed by
empth_wait_for_shutdown().
(empth_wait_for_shutdown): Implement on top of lwpSigWait().
Implement empth_wait_for_shutdown() for EMPTH_POSIX:
[EMPTH_POSIX] (empth_init): Block signals, so that
empth_wait_for_shutdown() can use sigwait() safely.
(empth_wait_for_shutdown): Implement on top of sigwait().
Implement empth_wait_for_shutdown() for EMPTH_W32:
(empth_wait_for_shutdown): Implement on top of loc_BlockMainThread().
(empth_init_signals): New, factored out of start_server(). Call from
empth_init().
(panic): Move to posix.c, internal linkage.
(empth_obj): Add new posix.o
(empth_start, empth_alarm) [EMPTH_POSIX]: Clean up pointless messing
with signal handlers.
(empth_init, empth_wakeup) [EMPTH_POSIX]: Clean up a bit.
(subst.in): Substitute it. Fix prerequisites.
(read_builtin_tables): New.
(main): Call it. This doesn't do anything, because no builtin tables
have been defined.
(config_tables): New econfig key.
(read_config_tables): New, implements config_tables.
(main): Call it. Need to call ef_init() and chdir(configdir) first.
(ef_init_srv): Don't call ef_init(), since main() did it already.
Remove old way to do the same:
(ef_load): Remove, along with calls.
(empfile): Set configuration tables' member file back to NULL.
Chainsaw version (4.00 since Empire 2, ca. 1995) and Wolfpack version
(used to be the version number after the first dot).
(KSU_DIST, CHAINSAW_DIST, WOLFPACK_DIST): Unused, remove.
(version): New.
(EMP_VERS_MAJOR, EMP_VERS_MINOR, EMP_VERS_PATCH): Remove. Users
changed to use version[] instead. version[] is slightly easier to
initialize from configure.ac.
(check-version): No longer needed, remove.
(legal): New.
(vers, main): Show it.
Rename close_files() to ef_close_srv() and move to fileinit.c.
Replace calls to close_files() with ef_fin_srv().
Call ef_close_srv() from ef_fin_srv().
(ef_close_srv, ef_fin_srv): New.
(init_files, init_server, ef_init_srv):
Rename init_files() to ef_open_srv() and move to fileinit.c.
Remove call to init_files() from init_server() and replace
with a call to ef_open_srv() from ef_init_srv().
(ef_open_srv): New.
(ef_load, init_server, ef_init_srv):
Move the call to ef_load() from init_server() to ef_init_srv().
(global_init, init_server, ef_init_srv):
Move the call to global_init() from init_server() to ef_init_srv().
(nullify_objects, global_init, init_server):
Split nullify_objects() into init_lchr() and init_dchr().
Locate init_lchr() and init_dchr() in init.c.
Add calls to init_lchr() and to init_dchr() from global_init().
(init_lchr(), init_dchr()): New.
buil, show_bridge, show_tower, nullify_objects):
Remove NO_LCMS, NO_HCMS, and NO_OIL options, not used.
Functionality can be emulated by modifiying the characteristics files.
Useless, remove. Users changed to check mchr's sentinel, because
that's clearer than comparing the index to N_MAXSHIPS or sizeof(mchr)
/ sizeof(*mchr).
(mchr): Change sentinel's m_name to NULL.
Useless, remove. Users changed to check plchr's sentinel, because
that's clearer than comparing the index to N_MAXPLANE or sizeof(plchr)
/ sizeof(*plchr).
(plchr): Change sentinel's pl_name to NULL.
Useless, remove. Users changed to check lchr's sentinel, because
that's clearer than comparing the index to N_MAXLAND or sizeof(lchr) /
sizeof(*lchr).
(lchr): Change sentinel's l_name to NULL.
Useless, remove. Users changed to check nchr's sentinel, because
that's clearer than comparing the index to N_MAXNUKE or sizeof(nchr) /
sizeof(*nchr).
(nchr): Change sentinel's n_name to NULL.
