Future virtual selectors will need to access game state. This depends
on common/file.c, which can't be used from global without creating a
cyclic dependency between libglobal.a and libcommon.a.
Move nsc.c to src/lib/common. file.c depends on it, so move it as
well, renamed to filetable.c so it doesn't clash with the existing
file.c.
Xundump had special hackery to maintain configuration tables'
sentinels: xubody() and getobj() added a sentinel element when
initializing or growing a table, which xubody() stripped off again
before returning. The latter was an unclean hack.
Replace this by building knowledge of sentinels into struct empfile:
new flag EFF_SENTINEL, set for the appropriate members of empfile[],
obeyed by ef_extend() and ef_truncate().
Where ordinary selectors specify a value stored in some object,
virtual selectors specify a function to call to compute a value
associated with some object.
Use them to replace the special case xdump ver by new table
EF_VERSION.
Move configkeys[] to lib/common because nsc_init() needs it to
initialize empfile[EF_VERSION].cadef.
Read-only was a bit of a misnomer: you could write to the table by
obtaining a pointer into it from ef_ptr(), you just couldn't write to
the backing file.
Semantic changes:
* ef_flush() is now allowed when the table is file-backed or privately
mapped. Before, it had to be file-backed. Flushing a privately
mapped table does nothing, just like flushing a read-only table did.
* ef_write() is now allowed when the table is file-backed or fully
cached. Before, it had to be file-backed and not read-only.
Writing to a privately mapped file-backed table doesn't write to the
file.
* ef_extend() is not implemented for privately mapped tables, just
like it wasn't implemented for read-only tables.
Split ef_init() into two functions: empfile_init() for initialization,
and empfile_fixup() to fix it up for configuration. Put them next to
empfile[]. Move the call to empfile_init() from behind emp_config()
to before it.
(gamestr, EF_GAME, game_ca): New.
(empfile): Declare the table.
(ef_open_srv, ef_close_srv): Open and close it.
(main): Create it.
(empobj_storage): New member game.
(EF_DYNMAX): New.
(EF_IS_GAME_STATE): Use it.
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.
files item.config, product.config, sect.config, infra.config.
(empfile): Declare the new config files. Reorder table entries so
that read_builtin_tables() reads the config files in the right order.
(bigcity_dchr, opt_BIG_CITY, init_dchr): Remove. Deities can edit
sect.config instead.
files ship.config, plane.config, land.config, nuke.config.
(empfile): Declare the new config files.
(install, installdirs): Install them.
(builtins): New make variable.
(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.
(sect_ca, ship_ca, land_ca, plague_stages, empfile):
Add plague stages symbol table.
(treaty_ca, loan_ca, agreement_statuses, empfile):
Add agreement status symbol table.
Combine treatystatuses (TS_FREE, TS_SIGNED and TS_PENDING)
and loan statuses (LS_FREE, LS_SIGNED and LS_PENDING)
into a single agreement status.
(pchr_ca, level, empfile): Add packing symbol table.
(retreat_flags, ship_ca, land_ca, plane_ca): Add retreat flags table.
(nation_flags, nation_relations, nat_ca): Add nation flags and
nation relations tables.
(empfile_ca): Remove flags and file name fields.
They are internal and not needed by the client.
(PTR_CACHE): Rename.
(ARRAY_CACHE): New.
(empfile): Use it to set csize of elements EF_SHIP_CHR, EF_PLANE_CHR,
EF_LAND_CHR, EF_NUKE_CHR.
(ef_init_chr): Now that empfile[]'s initializer sets csize, remove the
temporary csize initialization here. The value wasn't correct, but
better than nothing.
members.
(empfile): Reorder members for clearer documentation.
(EFF_IMMUTABLE): New.
(EFF_OPEN): Remove, use ~EFF_IMMUTABLE.
(empfile): Don't initialize member size to a useless value for EF_MAP
and EF_BMAP. ef_init() writes the real value.
(empfile): Correctly initialize members cids, csize, fids for all
EFF_STATIC tables except EF_SHIP_CHR, EF_PLANE_CHR, EF_LAND_CHR,
EF_NUKE_CHR, EF_META and the symbol tables.
