Files
nethack/src/save.c
2022-01-10 14:18:12 -05:00

1120 lines
37 KiB
C

/* NetHack 3.7 save.c $NHDT-Date: 1606949327 2020/12/02 22:48:47 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.164 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/*-Copyright (c) Michael Allison, 2009. */
/* NetHack may be freely redistributed. See license for details. */
#include "hack.h"
#ifndef NO_SIGNAL
#include <signal.h>
#endif
#if !defined(LSC) && !defined(O_WRONLY) && !defined(AZTEC_C)
#include <fcntl.h>
#endif
#ifdef MICRO
int dotcnt, dotrow; /* also used in restore */
#endif
static void savelevchn(NHFILE *);
static void savelevl(NHFILE *,boolean);
static void savedamage(NHFILE *);
static void save_stairs(NHFILE *);
static void saveobj(NHFILE *,struct obj *);
static void saveobjchn(NHFILE *,struct obj **);
static void savemon(NHFILE *,struct monst *);
static void savemonchn(NHFILE *,struct monst *);
static void savetrapchn(NHFILE *,struct trap *);
static void savegamestate(NHFILE *);
static void save_msghistory(NHFILE *);
#ifdef ZEROCOMP
static void zerocomp_bufon(int);
static void zerocomp_bufoff(int);
static void zerocomp_bflush(int);
static void zerocomp_bwrite(int, genericptr_t, unsigned int);
static void zerocomp_bputc(int);
#endif
#if defined(UNIX) || defined(VMS) || defined(__EMX__) || defined(WIN32)
#define HUP if (!g.program_state.done_hup)
#else
#define HUP
#endif
/* the #save command */
int
dosave(void)
{
clear_nhwindow(WIN_MESSAGE);
if (yn("Really save?") == 'n') {
clear_nhwindow(WIN_MESSAGE);
if (g.multi > 0)
nomul(0);
} else {
clear_nhwindow(WIN_MESSAGE);
pline("Saving...");
#if defined(UNIX) || defined(VMS) || defined(__EMX__)
g.program_state.done_hup = 0;
#endif
if (dosave0()) {
u.uhp = -1; /* universal game's over indicator */
/* make sure they see the Saving message */
display_nhwindow(WIN_MESSAGE, TRUE);
exit_nhwindows("Be seeing you...");
nh_terminate(EXIT_SUCCESS);
} else
(void) doredraw();
}
return ECMD_OK;
}
/* returns 1 if save successful */
int
dosave0(void)
{
const char *fq_save;
xchar ltmp;
d_level uz_save;
char whynot[BUFSZ];
NHFILE *nhfp, *onhfp;
int res = 0;
g.program_state.saving++; /* inhibit status and perm_invent updates */
/* we may get here via hangup signal, in which case we want to fix up
a few of things before saving so that they won't be restored in
an improper state; these will be no-ops for normal save sequence */
u.uinvulnerable = 0;
if (iflags.save_uswallow)
u.uswallow = 1, iflags.save_uswallow = 0;
if (iflags.save_uinwater)
u.uinwater = 1, iflags.save_uinwater = 0; /* bypass set_uinwater() */
if (iflags.save_uburied)
u.uburied = 1, iflags.save_uburied = 0;
if (!g.program_state.something_worth_saving || !g.SAVEF[0])
goto done;
fq_save = fqname(g.SAVEF, SAVEPREFIX, 1); /* level files take 0 */
#ifndef NO_SIGNAL
#if defined(UNIX) || defined(VMS)
sethanguphandler((void (*)(int) ) SIG_IGN);
#endif
(void) signal(SIGINT, SIG_IGN);
#endif
HUP if (iflags.window_inited) {
nh_uncompress(fq_save);
nhfp = open_savefile();
if (nhfp) {
close_nhfile(nhfp);
clear_nhwindow(WIN_MESSAGE);
There("seems to be an old save file.");
if (yn("Overwrite the old file?") == 'n') {
nh_compress(fq_save);
goto done;
}
}
}
HUP mark_synch(); /* flush any buffered screen output */
nhfp = create_savefile();
if (!nhfp) {
HUP pline("Cannot open save file.");
(void) delete_savefile(); /* ab@unido */
goto done;
}
vision_recalc(2); /* shut down vision to prevent problems
in the event of an impossible() call */
/* undo date-dependent luck adjustments made at startup time */
if (flags.moonphase == FULL_MOON) /* ut-sally!fletcher */
change_luck(-1); /* and unido!ab */
if (flags.friday13)
change_luck(1);
if (iflags.window_inited)
HUP clear_nhwindow(WIN_MESSAGE);
#ifdef MICRO
dotcnt = 0;
dotrow = 2;
curs(WIN_MAP, 1, 1);
if (!WINDOWPORT("X11"))
putstr(WIN_MAP, 0, "Saving:");
#endif
nhfp->mode = WRITING | FREEING;
store_version(nhfp);
store_savefileinfo(nhfp);
if (nhfp && nhfp->fplog)
(void) fprintf(nhfp->fplog, "# post-validation\n");
store_plname_in_file(nhfp);
g.ustuck_id = (u.ustuck ? u.ustuck->m_id : 0);
g.usteed_id = (u.usteed ? u.usteed->m_id : 0);
/* savelev() might save uball and uchain, releasing their memory if
FREEING, so we need to check their status now; if hero is swallowed,
uball and uchain will persist beyond saving map floor and inventory
so these copies of their pointers will be valid and savegamestate()
will know to save them separately (from floor and invent); when not
swallowed, uchain will be stale by then, and uball will be too if
ball is on the floor rather than carried */
g.looseball = BALL_IN_MON ? uball : 0;
g.loosechain = CHAIN_IN_MON ? uchain : 0;
savelev(nhfp, ledger_no(&u.uz));
savegamestate(nhfp);
/* While copying level files around, zero out u.uz to keep
* parts of the restore code from completely initializing all
* in-core data structures, since all we're doing is copying.
* This also avoids at least one nasty core dump.
*/
uz_save = u.uz;
u.uz.dnum = u.uz.dlevel = 0;
/* these pointers are no longer valid, and at least u.usteed
* may mislead place_monster() on other levels
*/
set_ustuck((struct monst *) 0);
u.usteed = (struct monst *) 0;
for (ltmp = (xchar) 1; ltmp <= maxledgerno(); ltmp++) {
if (ltmp == ledger_no(&uz_save))
continue;
if (!(g.level_info[ltmp].flags & LFILE_EXISTS))
continue;
#ifdef MICRO
curs(WIN_MAP, 1 + dotcnt++, dotrow);
if (dotcnt >= (COLNO - 1)) {
dotrow++;
dotcnt = 0;
}
if (!WINDOWPORT("X11")) {
putstr(WIN_MAP, 0, ".");
}
mark_synch();
#endif
onhfp = open_levelfile(ltmp, whynot);
if (!onhfp) {
HUP pline1(whynot);
close_nhfile(nhfp);
(void) delete_savefile();
HUP Strcpy(g.killer.name, whynot);
HUP done(TRICKED);
goto done;
}
minit(); /* ZEROCOMP */
getlev(onhfp, g.hackpid, ltmp);
close_nhfile(onhfp);
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &ltmp, sizeof ltmp); /* lvl no. */
savelev(nhfp, ltmp); /* actual level*/
delete_levelfile(ltmp);
}
close_nhfile(nhfp);
u.uz = uz_save;
/* get rid of current level --jgm */
delete_levelfile(ledger_no(&u.uz));
delete_levelfile(0);
nh_compress(fq_save);
/* this should probably come sooner... */
g.program_state.something_worth_saving = 0;
res = 1;
done:
g.program_state.saving--;
return res;
}
static void
savegamestate(NHFILE* nhfp)
{
unsigned long uid;
struct obj *bc_objs = (struct obj *)0;
g.program_state.saving++; /* caller should/did already set this... */
uid = (unsigned long) getuid();
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &uid, sizeof uid);
bwrite(nhfp->fd, (genericptr_t) &g.context, sizeof g.context);
bwrite(nhfp->fd, (genericptr_t) &flags, sizeof flags);
}
urealtime.finish_time = getnow();
urealtime.realtime += timet_delta(urealtime.finish_time,
urealtime.start_timing);
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &u, sizeof u);
bwrite(nhfp->fd, yyyymmddhhmmss(ubirthday), 14);
bwrite(nhfp->fd, (genericptr_t) &urealtime.realtime,
sizeof urealtime.realtime);
bwrite(nhfp->fd, yyyymmddhhmmss(urealtime.start_timing), 14);
}
/* this is the value to use for the next update of urealtime.realtime */
urealtime.start_timing = urealtime.finish_time;
save_killers(nhfp);
/* must come before g.migrating_objs and g.migrating_mons are freed */
save_timers(nhfp, RANGE_GLOBAL);
save_light_sources(nhfp, RANGE_GLOBAL);
/* when FREEING, deletes objects in invent and sets invent to Null;
pointers into invent (uwep, uarmg, uamul, &c) are set to Null too */
saveobjchn(nhfp, &g.invent);
/* save ball and chain if they are currently dangling free (i.e. not
on floor or in inventory); 'looseball' and 'loosechain' have been
set up in caller because ball and chain will be gone by now if on
floor, or ball gone if carried; caveat: uball and uchain pointers
will be non-Null but stale (point to freed memory) in those cases */
bc_objs = (struct obj *) 0;
if (g.loosechain) {
g.loosechain->nobj = bc_objs; /* uchain */
bc_objs = g.loosechain;
}
if (g.looseball) {
g.looseball->nobj = bc_objs;
bc_objs = g.looseball;
}
saveobjchn(nhfp, &bc_objs); /* frees objs in list, sets bc_objs to Null */
g.looseball = g.loosechain = (struct obj *) 0;
saveobjchn(nhfp, &g.migrating_objs); /* frees objs and sets to Null */
savemonchn(nhfp, g.migrating_mons);
if (release_data(nhfp))
g.migrating_mons = (struct monst *) 0;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) g.mvitals, sizeof g.mvitals);
save_dungeon(nhfp, (boolean) !!perform_bwrite(nhfp),
(boolean) !!release_data(nhfp));
savelevchn(nhfp);
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &g.moves, sizeof g.moves);
bwrite(nhfp->fd, (genericptr_t) &g.quest_status, sizeof g.quest_status);
bwrite(nhfp->fd, (genericptr_t) g.spl_book,
sizeof (struct spell) * (MAXSPELL + 1));
}
save_artifacts(nhfp);
save_oracles(nhfp);
if (g.ustuck_id) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &g.ustuck_id, sizeof g.ustuck_id);
}
if (g.usteed_id) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &g.usteed_id, sizeof g.usteed_id);
}
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) g.pl_character, sizeof g.pl_character);
bwrite(nhfp->fd, (genericptr_t) g.pl_fruit, sizeof g.pl_fruit);
}
savefruitchn(nhfp);
savenames(nhfp);
save_waterlevel(nhfp);
save_msghistory(nhfp);
if (nhfp->structlevel)
bflush(nhfp->fd);
g.program_state.saving--;
return;
}
/* potentially called from goto_level(do.c) as well as savestateinlock() */
boolean
tricked_fileremoved(NHFILE* nhfp, char* whynot)
{
if (!nhfp) {
pline1(whynot);
pline("Probably someone removed it.");
Strcpy(g.killer.name, whynot);
done(TRICKED);
return TRUE;
}
return FALSE;
}
#ifdef INSURANCE
void
savestateinlock(void)
{
int hpid = 0;
char whynot[BUFSZ];
NHFILE *nhfp;
g.program_state.saving++; /* inhibit status and perm_invent updates */
/* When checkpointing is on, the full state needs to be written
* on each checkpoint. When checkpointing is off, only the pid
* needs to be in the level.0 file, so it does not need to be
* constantly rewritten. When checkpointing is turned off during
* a game, however, the file has to be rewritten once to truncate
* it and avoid restoring from outdated information.
*
* Restricting g.havestate to this routine means that an additional
* noop pid rewriting will take place on the first "checkpoint" after
* the game is started or restored, if checkpointing is off.
*/
if (flags.ins_chkpt || g.havestate) {
/* save the rest of the current game state in the lock file,
* following the original int pid, the current level number,
* and the current savefile name, which should not be subject
* to any internal compression schemes since they must be
* readable by an external utility
*/
nhfp = open_levelfile(0, whynot);
if (tricked_fileremoved(nhfp, whynot)) {
g.program_state.saving--;
return;
}
if (nhfp->structlevel)
(void) read(nhfp->fd, (genericptr_t) &hpid, sizeof hpid);
if (g.hackpid != hpid) {
Sprintf(whynot, "Level #0 pid (%d) doesn't match ours (%d)!",
hpid, g.hackpid);
goto giveup;
}
close_nhfile(nhfp);
nhfp = create_levelfile(0, whynot);
if (!nhfp) {
pline1(whynot);
giveup:
Strcpy(g.killer.name, whynot);
/* done(TRICKED) will return when running in wizard mode;
clear the display-update-suppression flag before rather
than after so that screen updating behaves normally;
game data shouldn't be inconsistent yet, unlike it would
become midway through saving */
g.program_state.saving--;
done(TRICKED);
return;
}
nhfp->mode = WRITING;
if (nhfp->structlevel)
(void) write(nhfp->fd, (genericptr_t) &g.hackpid, sizeof g.hackpid);
if (flags.ins_chkpt) {
int currlev = ledger_no(&u.uz);
if (nhfp->structlevel)
(void) write(nhfp->fd, (genericptr_t) &currlev, sizeof currlev);
save_savefile_name(nhfp);
store_version(nhfp);
store_savefileinfo(nhfp);
store_plname_in_file(nhfp);
g.ustuck_id = (u.ustuck ? u.ustuck->m_id : 0);
g.usteed_id = (u.usteed ? u.usteed->m_id : 0);
g.looseball = BALL_IN_MON ? uball : 0;
g.loosechain = CHAIN_IN_MON ? uchain : 0;
savegamestate(nhfp);
}
close_nhfile(nhfp);
}
g.program_state.saving--;
g.havestate = flags.ins_chkpt;
return;
}
#endif
void
savelev(NHFILE* nhfp, xchar lev)
{
#ifdef TOS
short tlev;
#endif
g.program_state.saving++; /* even if current mode is FREEING */
/*
* Level file contents:
* version info (handled by caller);
* save file info (compression type; also by caller);
* process ID;
* internal level number (ledger number);
* bones info;
* actual level data.
*
* If we're tearing down the current level without saving anything
* (which happens at end of game or upon entrance to endgame or
* after an aborted restore attempt) then we don't want to do any
* actual I/O. So when only freeing, we skip to the bones info
* portion (which has some freeing to do), then jump quite a bit
* further ahead to the middle of the 'actual level data' portion.
*/
if (nhfp->mode != FREEING) {
/* WRITING (probably ORed with FREEING), or COUNTING */
/* purge any dead monsters (necessary if we're starting
a panic save rather than a normal one, or sometimes
when changing levels without taking time -- e.g.
create statue trap then immediately level teleport) */
if (iflags.purge_monsters)
dmonsfree();
if (!nhfp)
panic("Save on bad file!"); /* impossible */
if (lev >= 0 && lev <= maxledgerno())
g.level_info[lev].flags |= VISITED;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &g.hackpid, sizeof g.hackpid);
#ifdef TOS
tlev = lev;
tlev &= 0x00ff;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &tlev, sizeof tlev);
#else
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &lev, sizeof lev);
#endif
}
/* bones info comes before level data; the intent is for an external
program ('hearse') to be able to match a bones file with the
corresponding log file entry--or perhaps just skip that?--without
the guessing that was needed in 3.4.3 and without having to
interpret level data to find where to start; unfortunately it
still needs to handle all the data compression schemes */
savecemetery(nhfp, &g.level.bonesinfo);
if (nhfp->mode == FREEING) /* see above */
goto skip_lots;
savelevl(nhfp,
(boolean) ((sfsaveinfo.sfi1 & SFI1_RLECOMP) == SFI1_RLECOMP));
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) g.lastseentyp, sizeof g.lastseentyp);
bwrite(nhfp->fd, (genericptr_t) &g.moves, sizeof g.moves);
save_stairs(nhfp);
bwrite(nhfp->fd, (genericptr_t) &g.updest, sizeof (dest_area));
bwrite(nhfp->fd, (genericptr_t) &g.dndest, sizeof (dest_area));
bwrite(nhfp->fd, (genericptr_t) &g.level.flags, sizeof g.level.flags);
bwrite(nhfp->fd, (genericptr_t) g.doors, sizeof g.doors);
}
save_rooms(nhfp); /* no dynamic memory to reclaim */
/* from here on out, saving also involves allocated memory cleanup */
skip_lots:
/* timers and lights must be saved before monsters and objects */
save_timers(nhfp, RANGE_LEVEL);
save_light_sources(nhfp, RANGE_LEVEL);
savemonchn(nhfp, fmon);
save_worm(nhfp); /* save worm information */
savetrapchn(nhfp, g.ftrap);
saveobjchn(nhfp, &fobj);
saveobjchn(nhfp, &g.level.buriedobjlist);
saveobjchn(nhfp, &g.billobjs);
save_engravings(nhfp);
savedamage(nhfp); /* pending shop wall and/or floor repair */
save_regions(nhfp);
if (nhfp->mode != FREEING) {
if (nhfp->structlevel)
bflush(nhfp->fd);
}
g.program_state.saving--;
if (release_data(nhfp)) {
clear_level_structures();
g.ftrap = 0;
g.billobjs = 0;
(void) memset(g.rooms, 0, sizeof(g.rooms));
}
return;
}
static void
savelevl(NHFILE* nhfp, boolean rlecomp)
{
#ifdef RLECOMP
struct rm *prm, *rgrm;
int x, y;
uchar match;
if (rlecomp) {
/* perform run-length encoding of rm structs */
rgrm = &levl[0][0]; /* start matching at first rm */
match = 0;
for (y = 0; y < ROWNO; y++) {
for (x = 0; x < COLNO; x++) {
prm = &levl[x][y];
if (prm->glyph == rgrm->glyph && prm->typ == rgrm->typ
&& prm->seenv == rgrm->seenv
&& prm->horizontal == rgrm->horizontal
&& prm->flags == rgrm->flags && prm->lit == rgrm->lit
&& prm->waslit == rgrm->waslit
&& prm->roomno == rgrm->roomno && prm->edge == rgrm->edge
&& prm->candig == rgrm->candig) {
match++;
if (match > 254) {
match = 254; /* undo this match */
goto writeout;
}
} else {
/* run has been broken, write out run-length encoding */
writeout:
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &match, sizeof match);
bwrite(nhfp->fd, (genericptr_t) rgrm, sizeof *rgrm);
}
/* start encoding again. we have at least 1 rm
in the next run, viz. this one. */
match = 1;
rgrm = prm;
}
}
}
if (match > 0) {
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &match, sizeof (uchar));
bwrite(nhfp->fd, (genericptr_t) rgrm, sizeof (struct rm));
}
}
return;
}
#else /* !RLECOMP */
nhUse(rlecomp);
#endif /* ?RLECOMP */
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) levl, sizeof levl);
}
return;
}
/* used when saving a level and also when saving dungeon overview data */
void
savecemetery(NHFILE* nhfp, struct cemetery** cemeteryaddr)
{
struct cemetery *thisbones, *nextbones;
int flag;
flag = *cemeteryaddr ? 0 : -1;
if (perform_bwrite(nhfp)) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &flag, sizeof flag);
}
nextbones = *cemeteryaddr;
while ((thisbones = nextbones) != 0) {
nextbones = thisbones->next;
if (perform_bwrite(nhfp)) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) thisbones, sizeof *thisbones);
}
if (release_data(nhfp))
free((genericptr_t) thisbones);
}
if (release_data(nhfp))
*cemeteryaddr = 0;
}
static void
savedamage(NHFILE* nhfp)
{
register struct damage *damageptr, *tmp_dam;
unsigned int xl = 0;
damageptr = g.level.damagelist;
for (tmp_dam = damageptr; tmp_dam; tmp_dam = tmp_dam->next)
xl++;
if (perform_bwrite(nhfp)) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &xl, sizeof xl);
}
while (xl--) {
if (perform_bwrite(nhfp)) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) damageptr, sizeof *damageptr);
}
tmp_dam = damageptr;
damageptr = damageptr->next;
if (release_data(nhfp))
free((genericptr_t) tmp_dam);
}
if (release_data(nhfp))
g.level.damagelist = 0;
}
static void
save_stairs(NHFILE* nhfp)
{
stairway *stway = g.stairs;
int buflen = (int) sizeof *stway;
while (stway) {
if (perform_bwrite(nhfp)) {
if (stway->tolev.dnum == u.uz.dnum) {
/* make dlevel relative to current level */
stway->tolev.dlevel -= u.uz.dlevel;
}
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
bwrite(nhfp->fd, (genericptr_t) stway, sizeof *stway);
}
if (stway->tolev.dnum == u.uz.dnum) {
/* reset staiway dlevel back to absolute */
stway->tolev.dlevel += u.uz.dlevel;
}
}
stway = stway->next;
}
if (perform_bwrite(nhfp)) {
buflen = -1;
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
}
}
}
/* save one object;
caveat: this is only for perform_bwrite(); caller handles release_data() */
static void
saveobj(NHFILE* nhfp, struct obj* otmp)
{
int buflen, zerobuf = 0;
buflen = (int) sizeof (struct obj);
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
bwrite(nhfp->fd, (genericptr_t) otmp, buflen);
}
if (otmp->oextra) {
buflen = ONAME(otmp) ? (int) strlen(ONAME(otmp)) + 1 : 0;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
if (buflen > 0) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) ONAME(otmp), buflen);
}
/* defer to savemon() for this one */
if (OMONST(otmp)) {
savemon(nhfp, OMONST(otmp));
} else {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &zerobuf, sizeof zerobuf);
}
/* extra info about scroll of mail */
buflen = OMAILCMD(otmp) ? (int) strlen(OMAILCMD(otmp)) + 1 : 0;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
if (buflen > 0) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) OMAILCMD(otmp), buflen);
}
/* omid used to be indirect via a pointer in oextra but has
become part of oextra itself; 0 means not applicable and
gets saved/restored whenever any other oextra components do */
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &OMID(otmp), sizeof OMID(otmp));
}
}
/* save an object chain; sets head of list to Null when done;
handles release_data() for each object in the list */
static void
saveobjchn(NHFILE* nhfp, struct obj** obj_p)
{
register struct obj *otmp = *obj_p;
struct obj *otmp2;
boolean is_invent = (otmp && otmp == g.invent);
int minusone = -1;
while (otmp) {
otmp2 = otmp->nobj;
if (perform_bwrite(nhfp)) {
saveobj(nhfp, otmp);
}
if (Has_contents(otmp))
saveobjchn(nhfp, &otmp->cobj);
if (release_data(nhfp)) {
/*
* If these are on the floor, the discarding could be
* due to game save, or we could just be changing levels.
* Always invalidate the pointer, but ensure that we have
* the o_id in order to restore the pointer on reload.
*/
if (otmp == g.context.victual.piece) {
g.context.victual.o_id = otmp->o_id;
g.context.victual.piece = (struct obj *) 0;
}
if (otmp == g.context.tin.tin) {
g.context.tin.o_id = otmp->o_id;
g.context.tin.tin = (struct obj *) 0;
}
if (otmp == g.context.spbook.book) {
g.context.spbook.o_id = otmp->o_id;
g.context.spbook.book = (struct obj *) 0;
}
otmp->where = OBJ_FREE; /* set to free so dealloc will work */
otmp->nobj = NULL; /* nobj saved into otmp2 */
otmp->cobj = NULL; /* contents handled above */
otmp->timed = 0; /* not timed any more */
otmp->lamplit = 0; /* caller handled lights */
otmp->leashmon = 0; /* mon->mleashed could still be set;
* unfortunately, we can't clear that
* until after the monster is saved */
otmp->owornmask = 0L; /* no longer care */
dealloc_obj(otmp);
}
otmp = otmp2;
}
if (perform_bwrite(nhfp)) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &minusone, sizeof (int));
}
if (release_data(nhfp)) {
if (is_invent)
allunworn(); /* clear uwep, uarm, uball, &c pointers */
*obj_p = (struct obj *) 0;
}
}
static void
savemon(NHFILE* nhfp, struct monst* mtmp)
{
int buflen;
mtmp->mtemplit = 0; /* normally clear; if set here then a panic save
* is being written while bhit() was executing */
buflen = (int) sizeof (struct monst);
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
bwrite(nhfp->fd, (genericptr_t) mtmp, buflen);
}
if (mtmp->mextra) {
buflen = MGIVENNAME(mtmp) ? (int) strlen(MGIVENNAME(mtmp)) + 1 : 0;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
if (buflen > 0) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) MGIVENNAME(mtmp), buflen);
}
buflen = EGD(mtmp) ? (int) sizeof (struct egd) : 0;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
if (buflen > 0) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) EGD(mtmp), buflen);
}
buflen = EPRI(mtmp) ? (int) sizeof (struct epri) : 0;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
if (buflen > 0) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) EPRI(mtmp), buflen);
}
buflen = ESHK(mtmp) ? (int) sizeof (struct eshk) : 0;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof (int));
if (buflen > 0) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) ESHK(mtmp), buflen);
}
buflen = EMIN(mtmp) ? (int) sizeof (struct emin) : 0;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof (int));
if (buflen > 0) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) EMIN(mtmp), buflen);
}
buflen = EDOG(mtmp) ? (int) sizeof (struct edog) : 0;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof (int));
if (buflen > 0) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) EDOG(mtmp), buflen);
}
/* mcorpsenm is inline int rather than pointer to something,
so doesn't need to be preceded by a length field */
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &MCORPSENM(mtmp),
sizeof MCORPSENM(mtmp));
}
}
static void
savemonchn(NHFILE* nhfp, register struct monst* mtmp)
{
register struct monst *mtmp2;
int minusone = -1;
while (mtmp) {
mtmp2 = mtmp->nmon;
if (perform_bwrite(nhfp)) {
mtmp->mnum = monsndx(mtmp->data);
if (mtmp->ispriest)
forget_temple_entry(mtmp); /* EPRI() */
savemon(nhfp, mtmp);
}
if (mtmp->minvent)
saveobjchn(nhfp, &mtmp->minvent);
if (release_data(nhfp)) {
if (mtmp == g.context.polearm.hitmon) {
g.context.polearm.m_id = mtmp->m_id;
g.context.polearm.hitmon = NULL;
}
mtmp->nmon = NULL; /* nmon saved into mtmp2 */
dealloc_monst(mtmp);
}
mtmp = mtmp2;
}
if (perform_bwrite(nhfp)) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &minusone, sizeof (int));
}
}
/* save traps; g.ftrap is the only trap chain so the 2nd arg is superfluous */
static void
savetrapchn(NHFILE* nhfp, register struct trap* trap)
{
static struct trap zerotrap;
register struct trap *trap2;
while (trap) {
trap2 = trap->ntrap;
if (perform_bwrite(nhfp)) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) trap, sizeof *trap);
}
if (release_data(nhfp))
dealloc_trap(trap);
trap = trap2;
}
if (perform_bwrite(nhfp)) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &zerotrap, sizeof zerotrap);
}
}
/* save all the fruit names and ID's; this is used only in saving whole games
* (not levels) and in saving bones levels. When saving a bones level,
* we only want to save the fruits which exist on the bones level; the bones
* level routine marks nonexistent fruits by making the fid negative.
*/
void
savefruitchn(NHFILE* nhfp)
{
static struct fruit zerofruit;
register struct fruit *f2, *f1;
f1 = g.ffruit;
while (f1) {
f2 = f1->nextf;
if (f1->fid >= 0 && perform_bwrite(nhfp)) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) f1, sizeof *f1);
}
if (release_data(nhfp))
dealloc_fruit(f1);
f1 = f2;
}
if (perform_bwrite(nhfp)) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &zerofruit, sizeof zerofruit);
}
if (release_data(nhfp))
g.ffruit = 0;
}
static void
savelevchn(NHFILE* nhfp)
{
s_level *tmplev, *tmplev2;
int cnt = 0;
for (tmplev = g.sp_levchn; tmplev; tmplev = tmplev->next)
cnt++;
if (perform_bwrite(nhfp)) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &cnt, sizeof cnt);
}
for (tmplev = g.sp_levchn; tmplev; tmplev = tmplev2) {
tmplev2 = tmplev->next;
if (perform_bwrite(nhfp)) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) tmplev, sizeof *tmplev);
}
if (release_data(nhfp))
free((genericptr_t) tmplev);
}
if (release_data(nhfp))
g.sp_levchn = 0;
}
void
store_plname_in_file(NHFILE* nhfp)
{
int plsiztmp = PL_NSIZ;
if (nhfp->structlevel) {
bufoff(nhfp->fd);
/* bwrite() before bufon() uses plain write() */
bwrite(nhfp->fd, (genericptr_t) &plsiztmp, sizeof plsiztmp);
bwrite(nhfp->fd, (genericptr_t) g.plname, plsiztmp);
bufon(nhfp->fd);
}
return;
}
static void
save_msghistory(NHFILE* nhfp)
{
char *msg;
int msgcount = 0, msglen;
int minusone = -1;
boolean init = TRUE;
if (perform_bwrite(nhfp)) {
/* ask window port for each message in sequence */
while ((msg = getmsghistory(init)) != 0) {
init = FALSE;
msglen = strlen(msg);
if (msglen < 1)
continue;
/* sanity: truncate if necessary (shouldn't happen);
no need to modify msg[] since terminator isn't written */
if (msglen > BUFSZ - 1)
msglen = BUFSZ - 1;
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &msglen, sizeof msglen);
bwrite(nhfp->fd, (genericptr_t) msg, msglen);
}
++msgcount;
}
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &minusone, sizeof (int));
}
debugpline1("Stored %d messages into savefile.", msgcount);
/* note: we don't attempt to handle release_data() here */
}
void
store_savefileinfo(NHFILE* nhfp)
{
/* sfcap (decl.c) describes the savefile feature capabilities
* that are supported by this port/platform build.
*
* sfsaveinfo (decl.c) describes the savefile info that actually
* gets written into the savefile, and is used to determine the
* save file being written.
*
* sfrestinfo (decl.c) describes the savefile info that is
* being used to read the information from an existing savefile.
*/
if (nhfp->structlevel) {
bufoff(nhfp->fd);
/* bwrite() before bufon() uses plain write() */
bwrite(nhfp->fd, (genericptr_t) &sfsaveinfo,
(unsigned) sizeof sfsaveinfo);
bufon(nhfp->fd);
}
return;
}
/* also called by prscore(); this probably belongs in dungeon.c... */
void
free_dungeons(void)
{
#ifdef FREE_ALL_MEMORY
NHFILE tnhfp;
zero_nhfile(&tnhfp); /* also sets fd to -1 */
tnhfp.mode = FREEING;
savelevchn(&tnhfp);
save_dungeon(&tnhfp, FALSE, TRUE);
free_luathemes(TRUE);
#endif
return;
}
void
freedynamicdata(void)
{
NHFILE tnhfp;
#if defined(UNIX) && defined(MAIL)
free_maildata();
#endif
zero_nhfile(&tnhfp); /* also sets fd to -1 */
tnhfp.mode = FREEING;
free_menu_coloring();
free_invbuf(); /* let_to_name (invent.c) */
free_youbuf(); /* You_buf,&c (pline.c) */
msgtype_free();
tmp_at(DISP_FREEMEM, 0); /* temporary display effects */
#ifdef FREE_ALL_MEMORY
#define free_current_level() savelev(&tnhfp, -1)
#define freeobjchn(X) (saveobjchn(&tnhfp, &X), X = 0)
#define freemonchn(X) (savemonchn(&tnhfp, X), X = 0)
#define freefruitchn() savefruitchn(&tnhfp)
#define freenames() savenames(&tnhfp)
#define free_killers() save_killers(&tnhfp)
#define free_oracles() save_oracles(&tnhfp)
#define free_waterlevel() save_waterlevel(&tnhfp)
#define free_timers(R) save_timers(&tnhfp, R)
#define free_light_sources(R) save_light_sources(&tnhfp, R)
#define free_animals() mon_animal_list(FALSE)
/* move-specific data */
dmonsfree(); /* release dead monsters */
/* level-specific data */
free_current_level();
/* game-state data [ought to reorganize savegamestate() to handle this] */
free_killers();
free_timers(RANGE_GLOBAL);
free_light_sources(RANGE_GLOBAL);
freeobjchn(g.invent);
freeobjchn(g.migrating_objs);
freemonchn(g.migrating_mons);
freemonchn(g.mydogs); /* ascension or dungeon escape */
/* freelevchn(); -- [folded into free_dungeons()] */
free_animals();
free_oracles();
freefruitchn();
freenames();
free_waterlevel();
free_dungeons();
free_CapMons();
free_rect();
/* some pointers in iflags */
if (iflags.wc_font_map)
free((genericptr_t) iflags.wc_font_map), iflags.wc_font_map = 0;
if (iflags.wc_font_message)
free((genericptr_t) iflags.wc_font_message),
iflags.wc_font_message = 0;
if (iflags.wc_font_text)
free((genericptr_t) iflags.wc_font_text), iflags.wc_font_text = 0;
if (iflags.wc_font_menu)
free((genericptr_t) iflags.wc_font_menu), iflags.wc_font_menu = 0;
if (iflags.wc_font_status)
free((genericptr_t) iflags.wc_font_status), iflags.wc_font_status = 0;
if (iflags.wc_tile_file)
free((genericptr_t) iflags.wc_tile_file), iflags.wc_tile_file = 0;
free_autopickup_exceptions();
/* miscellaneous */
/* free_pickinv_cache(); -- now done from really_done()... */
free_symsets();
#ifdef USER_SOUNDS
release_sound_mappings();
#endif
#endif /* FREE_ALL_MEMORY */
if (VIA_WINDOWPORT())
status_finish();
#ifdef DUMPLOG
dumplogfreemessages();
#endif
/* last, because it frees data that might be used by panic() to provide
feedback to the user; conceivably other freeing might trigger panic */
sysopt_release(); /* SYSCF strings */
return;
}
/*save.c*/