Source:NetHack 3.6.1/src/save.c
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Below is the full text to save.c from the source code of NetHack 3.6.1. To link to a particular line, write [[Source:NetHack 3.6.1/src/save.c#line123]], for example.
Contents
- 1 Top of file
- 2 dosave
- 3 dosave0
- 4 savegamestate
- 5 tricked_fileremoved
- 6 savestateinlock
- 7 savelev
- 8 savelevl
- 9 bufon
- 10 bufoff
- 11 bflush
- 12 bwrite
- 13 bclose
- 14 def_bufon
- 15 def_bufoff
- 16 def_bflush
- 17 def_bwrite
- 18 def_bclose
- 19 zerocomp_bputc
- 20 zerocomp_bufon
- 21 zerocomp_bufoff
- 22 zerocomp_bflush
- 23 zerocomp_bwrite
- 24 zerocomp_bclose
- 25 savelevchn
- 26 savecemetery
- 27 savedamage
- 28 saveobj
- 29 saveobjchn
- 30 savemon
- 31 savemonchn
- 32 savetrapchn
- 33 savefruitchn
- 34 store_plname_in_file
- 35 save_msghistory
- 36 store_savefileinfo
- 37 set_savepref
- 38 free_dungeons
- 39 freedynamicdata
- 40 swapin_file
- 41 swapout_oldest
- 42 copyfile
- 43 co_false
Top of file
/* NetHack 3.6 save.c $NHDT-Date: 1489192905 2017/03/11 00:41:45 $ $NHDT-Branch: NetHack-3.6.0 $:$NHDT-Revision: 1.101 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/*-Copyright (c) Michael Allison, 2009. */
/* NetHack may be freely redistributed. See license for details. */The NetHack General Public License applies to screenshots, source code and other content from NetHack.
This content was modified from the original NetHack source code distribution (by splitting up NetHack content between wiki pages, and possibly further editing). See the page history for a list of who changed it, and on what dates.
#include "hack.h"
#include "lev.h"
#ifndef NO_SIGNAL
#include <signal.h>
#endif
#if !defined(LSC) && !defined(O_WRONLY) && !defined(AZTEC_C)
#include <fcntl.h>
#endif
#ifdef MFLOPPY
long bytes_counted;
static int count_only;
#endif
#ifdef MICRO
int dotcnt, dotrow; /* also used in restore */
#endif
STATIC_DCL void FDECL(savelevchn, (int, int));
STATIC_DCL void FDECL(savedamage, (int, int));
STATIC_DCL void FDECL(saveobj, (int, struct obj *));
STATIC_DCL void FDECL(saveobjchn, (int, struct obj *, int));
STATIC_DCL void FDECL(savemon, (int, struct monst *));
STATIC_DCL void FDECL(savemonchn, (int, struct monst *, int));
STATIC_DCL void FDECL(savetrapchn, (int, struct trap *, int));
STATIC_DCL void FDECL(savegamestate, (int, int));
STATIC_OVL void FDECL(save_msghistory, (int, int));
#ifdef MFLOPPY
STATIC_DCL void FDECL(savelev0, (int, XCHAR_P, int));
STATIC_DCL boolean NDECL(swapout_oldest);
STATIC_DCL void FDECL(copyfile, (char *, char *));
#endif /* MFLOPPY */
STATIC_DCL void FDECL(savelevl, (int fd, BOOLEAN_P));
STATIC_DCL void FDECL(def_bufon, (int));
STATIC_DCL void FDECL(def_bufoff, (int));
STATIC_DCL void FDECL(def_bflush, (int));
STATIC_DCL void FDECL(def_bwrite, (int, genericptr_t, unsigned int));
#ifdef ZEROCOMP
STATIC_DCL void FDECL(zerocomp_bufon, (int));
STATIC_DCL void FDECL(zerocomp_bufoff, (int));
STATIC_DCL void FDECL(zerocomp_bflush, (int));
STATIC_DCL void FDECL(zerocomp_bwrite, (int, genericptr_t, unsigned int));
STATIC_DCL void FDECL(zerocomp_bputc, (int));
#endif
static struct save_procs {
const char *name;
void FDECL((*save_bufon), (int));
void FDECL((*save_bufoff), (int));
void FDECL((*save_bflush), (int));
void FDECL((*save_bwrite), (int, genericptr_t, unsigned int));
void FDECL((*save_bclose), (int));
} saveprocs = {
#if !defined(ZEROCOMP) || (defined(COMPRESS) || defined(ZLIB_COMP))
"externalcomp", def_bufon, def_bufoff, def_bflush, def_bwrite, def_bclose,
#else
"zerocomp", zerocomp_bufon, zerocomp_bufoff,
zerocomp_bflush, zerocomp_bwrite, zerocomp_bclose,
#endif
};
#if defined(UNIX) || defined(VMS) || defined(__EMX__) || defined(WIN32)
#define HUP if (!program_state.done_hup)
#else
#define HUP
#endif
/* need to preserve these during save to avoid accessing freed memory */
static unsigned ustuck_id = 0, usteed_id = 0;
dosave
int
dosave()
{
clear_nhwindow(WIN_MESSAGE);
if (yn("Really save?") == 'n') {
clear_nhwindow(WIN_MESSAGE);
if (multi > 0)
nomul(0);
} else {
clear_nhwindow(WIN_MESSAGE);
pline("Saving...");
#if defined(UNIX) || defined(VMS) || defined(__EMX__)
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 0;
}
dosave0
/* returns 1 if save successful */
int
dosave0()
{
const char *fq_save;
register int fd, ofd;
xchar ltmp;
d_level uz_save;
char whynot[BUFSZ];
/* 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;
if (iflags.save_uburied)
u.uburied = 1, iflags.save_uburied = 0;
if (!program_state.something_worth_saving || !SAVEF[0])
return 0;
fq_save = fqname(SAVEF, SAVEPREFIX, 1); /* level files take 0 */
#if defined(UNIX) || defined(VMS)
sethanguphandler((void FDECL((*), (int) )) SIG_IGN);
#endif
#ifndef NO_SIGNAL
(void) signal(SIGINT, SIG_IGN);
#endif
#if defined(MICRO) && defined(MFLOPPY)
if (!saveDiskPrompt(0))
return 0;
#endif
HUP if (iflags.window_inited)
{
nh_uncompress(fq_save);
fd = open_savefile();
if (fd > 0) {
(void) nhclose(fd);
clear_nhwindow(WIN_MESSAGE);
There("seems to be an old save file.");
if (yn("Overwrite the old file?") == 'n') {
nh_compress(fq_save);
return 0;
}
}
}
HUP mark_synch(); /* flush any buffered screen output */
fd = create_savefile();
if (fd < 0) {
HUP pline("Cannot open save file.");
(void) delete_savefile(); /* ab@unido */
return 0;
}
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 (strncmpi("X11", windowprocs.name, 3))
putstr(WIN_MAP, 0, "Saving:");
#endif
#ifdef MFLOPPY
/* make sure there is enough disk space */
if (iflags.checkspace) {
long fds, needed;
savelev(fd, ledger_no(&u.uz), COUNT_SAVE);
savegamestate(fd, COUNT_SAVE);
needed = bytes_counted;
for (ltmp = 1; ltmp <= maxledgerno(); ltmp++)
if (ltmp != ledger_no(&u.uz) && level_info[ltmp].where)
needed += level_info[ltmp].size + (sizeof ltmp);
fds = freediskspace(fq_save);
if (needed > fds) {
HUP
{
There("is insufficient space on SAVE disk.");
pline("Require %ld bytes but only have %ld.", needed, fds);
}
flushout();
(void) nhclose(fd);
(void) delete_savefile();
return 0;
}
co_false();
}
#endif /* MFLOPPY */
store_version(fd);
store_savefileinfo(fd);
store_plname_in_file(fd);
ustuck_id = (u.ustuck ? u.ustuck->m_id : 0);
usteed_id = (u.usteed ? u.usteed->m_id : 0);
savelev(fd, ledger_no(&u.uz), WRITE_SAVE | FREE_SAVE);
savegamestate(fd, WRITE_SAVE | FREE_SAVE);
/* 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
*/
u.ustuck = (struct monst *) 0;
u.usteed = (struct monst *) 0;
for (ltmp = (xchar) 1; ltmp <= maxledgerno(); ltmp++) {
if (ltmp == ledger_no(&uz_save))
continue;
if (!(level_info[ltmp].flags & LFILE_EXISTS))
continue;
#ifdef MICRO
curs(WIN_MAP, 1 + dotcnt++, dotrow);
if (dotcnt >= (COLNO - 1)) {
dotrow++;
dotcnt = 0;
}
if (strncmpi("X11", windowprocs.name, 3)) {
putstr(WIN_MAP, 0, ".");
}
mark_synch();
#endif
ofd = open_levelfile(ltmp, whynot);
if (ofd < 0) {
HUP pline1(whynot);
(void) nhclose(fd);
(void) delete_savefile();
HUP Strcpy(killer.name, whynot);
HUP done(TRICKED);
return 0;
}
minit(); /* ZEROCOMP */
getlev(ofd, hackpid, ltmp, FALSE);
(void) nhclose(ofd);
bwrite(fd, (genericptr_t) <mp, sizeof ltmp); /* level number*/
savelev(fd, ltmp, WRITE_SAVE | FREE_SAVE); /* actual level*/
delete_levelfile(ltmp);
}
bclose(fd);
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... */
program_state.something_worth_saving = 0;
return 1;
}
savegamestate
STATIC_OVL void
savegamestate(fd, mode)
register int fd, mode;
{
unsigned long uid;
#ifdef MFLOPPY
count_only = (mode & COUNT_SAVE);
#endif
uid = (unsigned long) getuid();
bwrite(fd, (genericptr_t) &uid, sizeof uid);
bwrite(fd, (genericptr_t) &context, sizeof(struct context_info));
bwrite(fd, (genericptr_t) &flags, sizeof(struct flag));
#ifdef SYSFLAGS
bwrite(fd, (genericptr_t) &sysflags, sizeof(struct sysflag));
#endif
urealtime.finish_time = getnow();
urealtime.realtime += (long) (urealtime.finish_time
- urealtime.start_timing);
bwrite(fd, (genericptr_t) &u, sizeof(struct you));
bwrite(fd, yyyymmddhhmmss(ubirthday), 14);
bwrite(fd, (genericptr_t) &urealtime.realtime, sizeof urealtime.realtime);
bwrite(fd, yyyymmddhhmmss(urealtime.start_timing), 14); /** Why? **/
/* this is the value to use for the next update of urealtime.realtime */
urealtime.start_timing = urealtime.finish_time;
save_killers(fd, mode);
/* must come before migrating_objs and migrating_mons are freed */
save_timers(fd, mode, RANGE_GLOBAL);
save_light_sources(fd, mode, RANGE_GLOBAL);
saveobjchn(fd, invent, mode);
if (BALL_IN_MON) {
/* prevent loss of ball & chain when swallowed */
uball->nobj = uchain;
uchain->nobj = (struct obj *) 0;
saveobjchn(fd, uball, mode);
} else {
saveobjchn(fd, (struct obj *) 0, mode);
}
saveobjchn(fd, migrating_objs, mode);
savemonchn(fd, migrating_mons, mode);
if (release_data(mode)) {
invent = 0;
migrating_objs = 0;
migrating_mons = 0;
}
bwrite(fd, (genericptr_t) mvitals, sizeof(mvitals));
save_dungeon(fd, (boolean) !!perform_bwrite(mode),
(boolean) !!release_data(mode));
savelevchn(fd, mode);
bwrite(fd, (genericptr_t) &moves, sizeof moves);
bwrite(fd, (genericptr_t) &monstermoves, sizeof monstermoves);
bwrite(fd, (genericptr_t) &quest_status, sizeof(struct q_score));
bwrite(fd, (genericptr_t) spl_book,
sizeof(struct spell) * (MAXSPELL + 1));
save_artifacts(fd);
save_oracles(fd, mode);
if (ustuck_id)
bwrite(fd, (genericptr_t) &ustuck_id, sizeof ustuck_id);
if (usteed_id)
bwrite(fd, (genericptr_t) &usteed_id, sizeof usteed_id);
bwrite(fd, (genericptr_t) pl_character, sizeof pl_character);
bwrite(fd, (genericptr_t) pl_fruit, sizeof pl_fruit);
savefruitchn(fd, mode);
savenames(fd, mode);
save_waterlevel(fd, mode);
save_msghistory(fd, mode);
bflush(fd);
}
tricked_fileremoved
boolean
tricked_fileremoved(fd, whynot)
int fd;
char *whynot;
{
if (fd < 0) {
pline1(whynot);
pline("Probably someone removed it.");
Strcpy(killer.name, whynot);
done(TRICKED);
return TRUE;
}
return FALSE;
}
savestateinlock
#ifdef INSURANCE
void
savestateinlock()
{
int fd, hpid;
static boolean havestate = TRUE;
char whynot[BUFSZ];
/* 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 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 || 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
*/
fd = open_levelfile(0, whynot);
if (tricked_fileremoved(fd, whynot))
return;
(void) read(fd, (genericptr_t) &hpid, sizeof(hpid));
if (hackpid != hpid) {
Sprintf(whynot, "Level #0 pid (%d) doesn't match ours (%d)!",
hpid, hackpid);
pline1(whynot);
Strcpy(killer.name, whynot);
done(TRICKED);
}
(void) nhclose(fd);
fd = create_levelfile(0, whynot);
if (fd < 0) {
pline1(whynot);
Strcpy(killer.name, whynot);
done(TRICKED);
return;
}
(void) write(fd, (genericptr_t) &hackpid, sizeof(hackpid));
if (flags.ins_chkpt) {
int currlev = ledger_no(&u.uz);
(void) write(fd, (genericptr_t) &currlev, sizeof(currlev));
save_savefile_name(fd);
store_version(fd);
store_savefileinfo(fd);
store_plname_in_file(fd);
ustuck_id = (u.ustuck ? u.ustuck->m_id : 0);
usteed_id = (u.usteed ? u.usteed->m_id : 0);
savegamestate(fd, WRITE_SAVE);
}
bclose(fd);
}
havestate = flags.ins_chkpt;
}
#endif
savelev
#ifdef MFLOPPY
boolean
savelev(fd, lev, mode)
int fd;
xchar lev;
int mode;
{
if (mode & COUNT_SAVE) {
bytes_counted = 0;
savelev0(fd, lev, COUNT_SAVE);
/* probably bytes_counted will be filled in again by an
* immediately following WRITE_SAVE anyway, but we'll
* leave it out of checkspace just in case */
if (iflags.checkspace) {
while (bytes_counted > freediskspace(levels))
if (!swapout_oldest())
return FALSE;
}
}
if (mode & (WRITE_SAVE | FREE_SAVE)) {
bytes_counted = 0;
savelev0(fd, lev, mode);
}
if (mode != FREE_SAVE) {
level_info[lev].where = ACTIVE;
level_info[lev].time = moves;
level_info[lev].size = bytes_counted;
}
return TRUE;
}
STATIC_OVL void
savelev0(fd, lev, mode)
#else
void
savelev(fd, lev, mode)
#endif
int fd;
xchar lev;
int mode;
{
#ifdef TOS
short tlev;
#endif
/* if we're tearing down the current level without saving anything
(which happens upon entrance to the endgame or after an aborted
restore attempt) then we don't want to do any actual I/O */
if (mode == FREE_SAVE)
goto skip_lots;
/* 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 (fd < 0)
panic("Save on bad file!"); /* impossible */
#ifdef MFLOPPY
count_only = (mode & COUNT_SAVE);
#endif
if (lev >= 0 && lev <= maxledgerno())
level_info[lev].flags |= VISITED;
bwrite(fd, (genericptr_t) &hackpid, sizeof(hackpid));
#ifdef TOS
tlev = lev;
tlev &= 0x00ff;
bwrite(fd, (genericptr_t) &tlev, sizeof(tlev));
#else
bwrite(fd, (genericptr_t) &lev, sizeof(lev));
#endif
savecemetery(fd, mode, &level.bonesinfo);
savelevl(fd,
(boolean) ((sfsaveinfo.sfi1 & SFI1_RLECOMP) == SFI1_RLECOMP));
bwrite(fd, (genericptr_t) lastseentyp, sizeof(lastseentyp));
bwrite(fd, (genericptr_t) &monstermoves, sizeof(monstermoves));
bwrite(fd, (genericptr_t) &upstair, sizeof(stairway));
bwrite(fd, (genericptr_t) &dnstair, sizeof(stairway));
bwrite(fd, (genericptr_t) &upladder, sizeof(stairway));
bwrite(fd, (genericptr_t) &dnladder, sizeof(stairway));
bwrite(fd, (genericptr_t) &sstairs, sizeof(stairway));
bwrite(fd, (genericptr_t) &updest, sizeof(dest_area));
bwrite(fd, (genericptr_t) &dndest, sizeof(dest_area));
bwrite(fd, (genericptr_t) &level.flags, sizeof(level.flags));
bwrite(fd, (genericptr_t) doors, sizeof(doors));
save_rooms(fd); /* no dynamic memory to reclaim */
/* from here on out, saving also involves allocated memory cleanup */
skip_lots:
/* this comes before the map, so need cleanup here if we skipped */
if (mode == FREE_SAVE)
savecemetery(fd, mode, &level.bonesinfo);
/* must be saved before mons, objs, and buried objs */
save_timers(fd, mode, RANGE_LEVEL);
save_light_sources(fd, mode, RANGE_LEVEL);
savemonchn(fd, fmon, mode);
save_worm(fd, mode); /* save worm information */
savetrapchn(fd, ftrap, mode);
saveobjchn(fd, fobj, mode);
saveobjchn(fd, level.buriedobjlist, mode);
saveobjchn(fd, billobjs, mode);
if (release_data(mode)) {
fmon = 0;
ftrap = 0;
fobj = 0;
level.buriedobjlist = 0;
billobjs = 0;
/* level.bonesinfo = 0; -- handled by savecemetery() */
}
save_engravings(fd, mode);
savedamage(fd, mode);
save_regions(fd, mode);
if (mode != FREE_SAVE)
bflush(fd);
}
savelevl
STATIC_OVL void
savelevl(fd, rlecomp)
int fd;
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 {
/* the run has been broken,
* write out run-length encoding */
writeout:
bwrite(fd, (genericptr_t) &match, sizeof(uchar));
bwrite(fd, (genericptr_t) rgrm, sizeof(struct rm));
/* start encoding again. we have at least 1 rm
* in the next run, viz. this one. */
match = 1;
rgrm = prm;
}
}
}
if (match > 0) {
bwrite(fd, (genericptr_t) &match, sizeof(uchar));
bwrite(fd, (genericptr_t) rgrm, sizeof(struct rm));
}
return;
}
#else /* !RLECOMP */
nhUse(rlecomp);
#endif /* ?RLECOMP */
bwrite(fd, (genericptr_t) levl, sizeof levl);
}
/*ARGSUSED*/bufon
void
bufon(fd)
int fd;
{
(*saveprocs.save_bufon)(fd);
return;
}
/*ARGSUSED*/bufoff
void
bufoff(fd)
int fd;
{
(*saveprocs.save_bufoff)(fd);
return;
}
bflush
/* flush run and buffer */
void
bflush(fd)
register int fd;
{
(*saveprocs.save_bflush)(fd);
return;
}
bwrite
void
bwrite(fd, loc, num)
int fd;
genericptr_t loc;
register unsigned num;
{
(*saveprocs.save_bwrite)(fd, loc, num);
return;
}
bclose
void
bclose(fd)
int fd;
{
(*saveprocs.save_bclose)(fd);
return;
}
static int bw_fd = -1;
static FILE *bw_FILE = 0;
static boolean buffering = FALSE;
def_bufon
STATIC_OVL void
def_bufon(fd)
int fd;
{
#ifdef UNIX
if (bw_fd != fd) {
if (bw_fd >= 0)
panic("double buffering unexpected");
bw_fd = fd;
if ((bw_FILE = fdopen(fd, "w")) == 0)
panic("buffering of file %d failed", fd);
}
#endif
buffering = TRUE;
}
def_bufoff
STATIC_OVL void
def_bufoff(fd)
int fd;
{
def_bflush(fd);
buffering = FALSE;
}
def_bflush
STATIC_OVL void
def_bflush(fd)
int fd;
{
#ifdef UNIX
if (fd == bw_fd) {
if (fflush(bw_FILE) == EOF)
panic("flush of savefile failed!");
}
#endif
return;
}
def_bwrite
STATIC_OVL void
def_bwrite(fd, loc, num)
register int fd;
register genericptr_t loc;
register unsigned num;
{
boolean failed;
#ifdef MFLOPPY
bytes_counted += num;
if (count_only)
return;
#endif
#ifdef UNIX
if (buffering) {
if (fd != bw_fd)
panic("unbuffered write to fd %d (!= %d)", fd, bw_fd);
failed = (fwrite(loc, (int) num, 1, bw_FILE) != 1);
} else
#endif /* UNIX */
{
/* lint wants 3rd arg of write to be an int; lint -p an unsigned */
#if defined(BSD) || defined(ULTRIX) || defined(WIN32) || defined(_MSC_VER)
failed = ((long) write(fd, loc, (int) num) != (long) num);
#else /* e.g. SYSV, __TURBOC__ */
failed = ((long) write(fd, loc, num) != (long) num);
#endif
}
if (failed) {
#if defined(UNIX) || defined(VMS) || defined(__EMX__)
if (program_state.done_hup)
nh_terminate(EXIT_FAILURE);
else
#endif
panic("cannot write %u bytes to file #%d", num, fd);
}
}
def_bclose
void
def_bclose(fd)
int fd;
{
bufoff(fd);
#ifdef UNIX
if (fd == bw_fd) {
(void) fclose(bw_FILE);
bw_fd = -1;
bw_FILE = 0;
} else
#endif
(void) nhclose(fd);
return;
}
#ifdef ZEROCOMP
/* The runs of zero-run compression are flushed after the game state or a
* level is written out. This adds a couple bytes to a save file, where
* the runs could be mashed together, but it allows gluing together game
* state and level files to form a save file, and it means the flushing
* does not need to be specifically called for every other time a level
* file is written out.
*/
#define RLESC '\0' /* Leading character for run of LRESC's */
#define flushoutrun(ln) (zerocomp_bputc(RLESC), zerocomp_bputc(ln), ln = -1)
#ifndef ZEROCOMP_BUFSIZ
#define ZEROCOMP_BUFSIZ BUFSZ
#endif
static NEARDATA unsigned char outbuf[ZEROCOMP_BUFSIZ];
static NEARDATA unsigned short outbufp = 0;
static NEARDATA short outrunlength = -1;
static NEARDATA int bwritefd;
static NEARDATA boolean compressing = FALSE;
/*dbg()
{
HUP printf("outbufp %d outrunlength %d\n", outbufp,outrunlength);
}*/
zerocomp_bputc
STATIC_OVL void
zerocomp_bputc(c)
int c;
{
#ifdef MFLOPPY
bytes_counted++;
if (count_only)
return;
#endif
if (outbufp >= sizeof outbuf) {
(void) write(bwritefd, outbuf, sizeof outbuf);
outbufp = 0;
}
outbuf[outbufp++] = (unsigned char) c;
}
/*ARGSUSED*/zerocomp_bufon
void STATIC_OVL
zerocomp_bufon(fd)
int fd;
{
compressing = TRUE;
return;
}
/*ARGSUSED*/zerocomp_bufoff
STATIC_OVL void
zerocomp_bufoff(fd)
int fd;
{
if (outbufp) {
outbufp = 0;
panic("closing file with buffered data still unwritten");
}
outrunlength = -1;
compressing = FALSE;
return;
}
/* flush run and buffer */zerocomp_bflush
STATIC_OVL void
zerocomp_bflush(fd)
register int fd;
{
bwritefd = fd;
if (outrunlength >= 0) { /* flush run */
flushoutrun(outrunlength);
}
#ifdef MFLOPPY
if (count_only)
outbufp = 0;
#endif
if (outbufp) {
if (write(fd, outbuf, outbufp) != outbufp) {
#if defined(UNIX) || defined(VMS) || defined(__EMX__)
if (program_state.done_hup)
nh_terminate(EXIT_FAILURE);
else
#endif
zerocomp_bclose(fd); /* panic (outbufp != 0) */
}
outbufp = 0;
}
}
zerocomp_bwrite
STATIC_OVL void
zerocomp_bwrite(fd, loc, num)
int fd;
genericptr_t loc;
register unsigned num;
{
register unsigned char *bp = (unsigned char *) loc;
if (!compressing) {
#ifdef MFLOPPY
bytes_counted += num;
if (count_only)
return;
#endif
if ((unsigned) write(fd, loc, num) != num) {
#if defined(UNIX) || defined(VMS) || defined(__EMX__)
if (program_state.done_hup)
nh_terminate(EXIT_FAILURE);
else
#endif
panic("cannot write %u bytes to file #%d", num, fd);
}
} else {
bwritefd = fd;
for (; num; num--, bp++) {
if (*bp == RLESC) { /* One more char in run */
if (++outrunlength == 0xFF) {
flushoutrun(outrunlength);
}
} else { /* end of run */
if (outrunlength >= 0) { /* flush run */
flushoutrun(outrunlength);
}
zerocomp_bputc(*bp);
}
}
}
}
zerocomp_bclose
void
zerocomp_bclose(fd)
int fd;
{
zerocomp_bufoff(fd);
(void) nhclose(fd);
return;
}
#endif /* ZEROCOMP */
savelevchn
STATIC_OVL void
savelevchn(fd, mode)
register int fd, mode;
{
s_level *tmplev, *tmplev2;
int cnt = 0;
for (tmplev = sp_levchn; tmplev; tmplev = tmplev->next)
cnt++;
if (perform_bwrite(mode))
bwrite(fd, (genericptr_t) &cnt, sizeof(int));
for (tmplev = sp_levchn; tmplev; tmplev = tmplev2) {
tmplev2 = tmplev->next;
if (perform_bwrite(mode))
bwrite(fd, (genericptr_t) tmplev, sizeof(s_level));
if (release_data(mode))
free((genericptr_t) tmplev);
}
if (release_data(mode))
sp_levchn = 0;
}
savecemetery
/* used when saving a level and also when saving dungeon overview data */
void
savecemetery(fd, mode, cemeteryaddr)
int fd;
int mode;
struct cemetery **cemeteryaddr;
{
struct cemetery *thisbones, *nextbones;
int flag;
flag = *cemeteryaddr ? 0 : -1;
if (perform_bwrite(mode))
bwrite(fd, (genericptr_t) &flag, sizeof flag);
nextbones = *cemeteryaddr;
while ((thisbones = nextbones) != 0) {
nextbones = thisbones->next;
if (perform_bwrite(mode))
bwrite(fd, (genericptr_t) thisbones, sizeof *thisbones);
if (release_data(mode))
free((genericptr_t) thisbones);
}
if (release_data(mode))
*cemeteryaddr = 0;
}
savedamage
STATIC_OVL void
savedamage(fd, mode)
register int fd, mode;
{
register struct damage *damageptr, *tmp_dam;
unsigned int xl = 0;
damageptr = level.damagelist;
for (tmp_dam = damageptr; tmp_dam; tmp_dam = tmp_dam->next)
xl++;
if (perform_bwrite(mode))
bwrite(fd, (genericptr_t) &xl, sizeof(xl));
while (xl--) {
if (perform_bwrite(mode))
bwrite(fd, (genericptr_t) damageptr, sizeof(*damageptr));
tmp_dam = damageptr;
damageptr = damageptr->next;
if (release_data(mode))
free((genericptr_t) tmp_dam);
}
if (release_data(mode))
level.damagelist = 0;
}
saveobj
STATIC_OVL void
saveobj(fd, otmp)
int fd;
struct obj *otmp;
{
int buflen, zerobuf = 0;
buflen = sizeof(struct obj);
bwrite(fd, (genericptr_t) &buflen, sizeof(int));
bwrite(fd, (genericptr_t) otmp, buflen);
if (otmp->oextra) {
if (ONAME(otmp))
buflen = strlen(ONAME(otmp)) + 1;
else
buflen = 0;
bwrite(fd, (genericptr_t) &buflen, sizeof buflen);
if (buflen > 0)
bwrite(fd, (genericptr_t) ONAME(otmp), buflen);
/* defer to savemon() for this one */
if (OMONST(otmp))
savemon(fd, OMONST(otmp));
else
bwrite(fd, (genericptr_t) &zerobuf, sizeof zerobuf);
if (OMID(otmp))
buflen = sizeof(unsigned);
else
buflen = 0;
bwrite(fd, (genericptr_t) &buflen, sizeof buflen);
if (buflen > 0)
bwrite(fd, (genericptr_t) OMID(otmp), buflen);
if (OLONG(otmp))
buflen = sizeof(long);
else
buflen = 0;
bwrite(fd, (genericptr_t) &buflen, sizeof buflen);
if (buflen > 0)
bwrite(fd, (genericptr_t) OLONG(otmp), buflen);
if (OMAILCMD(otmp))
buflen = strlen(OMAILCMD(otmp)) + 1;
else
buflen = 0;
bwrite(fd, (genericptr_t) &buflen, sizeof buflen);
if (buflen > 0)
bwrite(fd, (genericptr_t) OMAILCMD(otmp), buflen);
}
}
saveobjchn
STATIC_OVL void
saveobjchn(fd, otmp, mode)
register int fd, mode;
register struct obj *otmp;
{
register struct obj *otmp2;
int minusone = -1;
while (otmp) {
otmp2 = otmp->nobj;
if (perform_bwrite(mode)) {
saveobj(fd, otmp);
}
if (Has_contents(otmp))
saveobjchn(fd, otmp->cobj, mode);
if (release_data(mode)) {
/* if (otmp->oclass == FOOD_CLASS)
* food_disappears(otmp);
*/
/*
* If these are on the floor, the discarding could
* be because of a 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 == context.victual.piece) {
/* Store the o_id of the victual if mismatched */
if (context.victual.o_id != otmp->o_id)
context.victual.o_id = otmp->o_id;
/* invalidate the pointer; on reload it will get restored */
context.victual.piece = (struct obj *) 0;
}
if (otmp == context.tin.tin) {
/* Store the o_id of your tin */
if (context.tin.o_id != otmp->o_id)
context.tin.o_id = otmp->o_id;
/* invalidate the pointer; on reload it will get restored */
context.tin.tin = (struct obj *) 0;
}
/* if (otmp->oclass == SPBOOK_CLASS)
* book_disappears(otmp);
*/
if (otmp == context.spbook.book) {
/* Store the o_id of your spellbook */
if (context.spbook.o_id != otmp->o_id)
context.spbook.o_id = otmp->o_id;
/* invalidate the pointer; on reload it will get restored */
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 */
dealloc_obj(otmp);
}
otmp = otmp2;
}
if (perform_bwrite(mode))
bwrite(fd, (genericptr_t) &minusone, sizeof(int));
}
savemon
STATIC_OVL void
savemon(fd, mtmp)
int fd;
struct monst *mtmp;
{
int buflen;
buflen = sizeof(struct monst);
bwrite(fd, (genericptr_t) &buflen, sizeof(int));
bwrite(fd, (genericptr_t) mtmp, buflen);
if (mtmp->mextra) {
if (MNAME(mtmp))
buflen = strlen(MNAME(mtmp)) + 1;
else
buflen = 0;
bwrite(fd, (genericptr_t) &buflen, sizeof buflen);
if (buflen > 0)
bwrite(fd, (genericptr_t) MNAME(mtmp), buflen);
if (EGD(mtmp))
buflen = sizeof(struct egd);
else
buflen = 0;
bwrite(fd, (genericptr_t) &buflen, sizeof(int));
if (buflen > 0)
bwrite(fd, (genericptr_t) EGD(mtmp), buflen);
if (EPRI(mtmp))
buflen = sizeof(struct epri);
else
buflen = 0;
bwrite(fd, (genericptr_t) &buflen, sizeof(int));
if (buflen > 0)
bwrite(fd, (genericptr_t) EPRI(mtmp), buflen);
if (ESHK(mtmp))
buflen = sizeof(struct eshk);
else
buflen = 0;
bwrite(fd, (genericptr_t) &buflen, sizeof(int));
if (buflen > 0)
bwrite(fd, (genericptr_t) ESHK(mtmp), buflen);
if (EMIN(mtmp))
buflen = sizeof(struct emin);
else
buflen = 0;
bwrite(fd, (genericptr_t) &buflen, sizeof(int));
if (buflen > 0)
bwrite(fd, (genericptr_t) EMIN(mtmp), buflen);
if (EDOG(mtmp))
buflen = sizeof(struct edog);
else
buflen = 0;
bwrite(fd, (genericptr_t) &buflen, sizeof(int));
if (buflen > 0)
bwrite(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 */
bwrite(fd, (genericptr_t) &MCORPSENM(mtmp), sizeof MCORPSENM(mtmp));
}
}
savemonchn
STATIC_OVL void
savemonchn(fd, mtmp, mode)
register int fd, mode;
register struct monst *mtmp;
{
register struct monst *mtmp2;
int minusone = -1;
while (mtmp) {
mtmp2 = mtmp->nmon;
if (perform_bwrite(mode)) {
mtmp->mnum = monsndx(mtmp->data);
if (mtmp->ispriest)
forget_temple_entry(mtmp); /* EPRI() */
savemon(fd, mtmp);
}
if (mtmp->minvent)
saveobjchn(fd, mtmp->minvent, mode);
if (release_data(mode)) {
if (mtmp == context.polearm.hitmon) {
context.polearm.m_id = mtmp->m_id;
context.polearm.hitmon = NULL;
}
mtmp->nmon = NULL; /* nmon saved into mtmp2 */
dealloc_monst(mtmp);
}
mtmp = mtmp2;
}
if (perform_bwrite(mode))
bwrite(fd, (genericptr_t) &minusone, sizeof(int));
}
savetrapchn
/* save traps; ftrap is the only trap chain so the 2nd arg is superfluous */
STATIC_OVL void
savetrapchn(fd, trap, mode)
int fd;
register struct trap *trap;
int mode;
{
static struct trap zerotrap;
register struct trap *trap2;
while (trap) {
trap2 = trap->ntrap;
if (perform_bwrite(mode))
bwrite(fd, (genericptr_t) trap, sizeof (struct trap));
if (release_data(mode))
dealloc_trap(trap);
trap = trap2;
}
if (perform_bwrite(mode))
bwrite(fd, (genericptr_t) &zerotrap, sizeof zerotrap);
}
savefruitchn
/* 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(fd, mode)
int fd, mode;
{
static struct fruit zerofruit;
register struct fruit *f2, *f1;
f1 = ffruit;
while (f1) {
f2 = f1->nextf;
if (f1->fid >= 0 && perform_bwrite(mode))
bwrite(fd, (genericptr_t) f1, sizeof (struct fruit));
if (release_data(mode))
dealloc_fruit(f1);
f1 = f2;
}
if (perform_bwrite(mode))
bwrite(fd, (genericptr_t) &zerofruit, sizeof zerofruit);
if (release_data(mode))
ffruit = 0;
}
store_plname_in_file
void
store_plname_in_file(fd)
int fd;
{
int plsiztmp = PL_NSIZ;
bufoff(fd);
/* bwrite() before bufon() uses plain write() */
bwrite(fd, (genericptr_t) &plsiztmp, sizeof(plsiztmp));
bwrite(fd, (genericptr_t) plname, plsiztmp);
bufon(fd);
return;
}
save_msghistory
STATIC_OVL void
save_msghistory(fd, mode)
int fd, mode;
{
char *msg;
int msgcount = 0, msglen;
int minusone = -1;
boolean init = TRUE;
if (perform_bwrite(mode)) {
/* ask window port for each message in sequence */
while ((msg = getmsghistory(init)) != 0) {
init = FALSE;
msglen = strlen(msg);
/* sanity: truncate if necessary (shouldn't happen);
no need to modify msg[] since terminator isn't written */
if (msglen > BUFSZ - 1)
msglen = BUFSZ - 1;
bwrite(fd, (genericptr_t) &msglen, sizeof(msglen));
bwrite(fd, (genericptr_t) msg, msglen);
++msgcount;
}
bwrite(fd, (genericptr_t) &minusone, sizeof(int));
}
debugpline1("Stored %d messages into savefile.", msgcount);
/* note: we don't attempt to handle release_data() here */
}
store_savefileinfo
void
store_savefileinfo(fd)
int fd;
{
/* 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.
*
*/
bufoff(fd);
/* bwrite() before bufon() uses plain write() */
bwrite(fd, (genericptr_t) &sfsaveinfo, (unsigned) (sizeof sfsaveinfo));
bufon(fd);
return;
}
set_savepref
void
set_savepref(suitename)
const char *suitename;
{
if (!strcmpi(suitename, "externalcomp")) {
saveprocs.name = "externalcomp";
saveprocs.save_bufon = def_bufon;
saveprocs.save_bufoff = def_bufoff;
saveprocs.save_bflush = def_bflush;
saveprocs.save_bwrite = def_bwrite;
saveprocs.save_bclose = def_bclose;
sfsaveinfo.sfi1 |= SFI1_EXTERNALCOMP;
sfsaveinfo.sfi1 &= ~SFI1_ZEROCOMP;
}
if (!strcmpi(suitename, "!rlecomp")) {
sfsaveinfo.sfi1 &= ~SFI1_RLECOMP;
}
#ifdef ZEROCOMP
if (!strcmpi(suitename, "zerocomp")) {
saveprocs.name = "zerocomp";
saveprocs.save_bufon = zerocomp_bufon;
saveprocs.save_bufoff = zerocomp_bufoff;
saveprocs.save_bflush = zerocomp_bflush;
saveprocs.save_bwrite = zerocomp_bwrite;
saveprocs.save_bclose = zerocomp_bclose;
sfsaveinfo.sfi1 |= SFI1_ZEROCOMP;
sfsaveinfo.sfi1 &= ~SFI1_EXTERNALCOMP;
}
#endif
#ifdef RLECOMP
if (!strcmpi(suitename, "rlecomp")) {
sfsaveinfo.sfi1 |= SFI1_RLECOMP;
}
#endif
}
free_dungeons
/* also called by prscore(); this probably belongs in dungeon.c... */
void
free_dungeons()
{
#ifdef FREE_ALL_MEMORY
savelevchn(0, FREE_SAVE);
save_dungeon(0, FALSE, TRUE);
#endif
return;
}
freedynamicdata
void
freedynamicdata()
{
#if defined(UNIX) && defined(MAIL)
free_maildata();
#endif
unload_qtlist();
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 freeobjchn(X) (saveobjchn(0, X, FREE_SAVE), X = 0)
#define freemonchn(X) (savemonchn(0, X, FREE_SAVE), X = 0)
#define freetrapchn(X) (savetrapchn(0, X, FREE_SAVE), X = 0)
#define freefruitchn() savefruitchn(0, FREE_SAVE)
#define freenames() savenames(0, FREE_SAVE)
#define free_killers() save_killers(0, FREE_SAVE)
#define free_oracles() save_oracles(0, FREE_SAVE)
#define free_waterlevel() save_waterlevel(0, FREE_SAVE)
#define free_worm() save_worm(0, FREE_SAVE)
#define free_timers(R) save_timers(0, FREE_SAVE, R)
#define free_light_sources(R) save_light_sources(0, FREE_SAVE, R);
#define free_engravings() save_engravings(0, FREE_SAVE)
#define freedamage() savedamage(0, FREE_SAVE)
#define free_animals() mon_animal_list(FALSE)
/* move-specific data */
dmonsfree(); /* release dead monsters */
/* level-specific data */
free_timers(RANGE_LEVEL);
free_light_sources(RANGE_LEVEL);
clear_regions();
freemonchn(fmon);
free_worm(); /* release worm segment information */
freetrapchn(ftrap);
freeobjchn(fobj);
freeobjchn(level.buriedobjlist);
freeobjchn(billobjs);
free_engravings();
freedamage();
/* game-state data */
free_killers();
free_timers(RANGE_GLOBAL);
free_light_sources(RANGE_GLOBAL);
freeobjchn(invent);
freeobjchn(migrating_objs);
freemonchn(migrating_mons);
freemonchn(mydogs); /* ascension or dungeon escape */
/* freelevchn(); -- [folded into free_dungeons()] */
free_animals();
free_oracles();
freefruitchn();
freenames();
free_waterlevel();
free_dungeons();
/* some pointers in iflags */
if (iflags.wc_font_map)
free(iflags.wc_font_map);
if (iflags.wc_font_message)
free(iflags.wc_font_message);
if (iflags.wc_font_text)
free(iflags.wc_font_text);
if (iflags.wc_font_menu)
free(iflags.wc_font_menu);
if (iflags.wc_font_status)
free(iflags.wc_font_status);
if (iflags.wc_tile_file)
free(iflags.wc_tile_file);
free_autopickup_exceptions();
/* miscellaneous */
/* free_pickinv_cache(); -- now done from really_done()... */
free_symsets();
#endif /* FREE_ALL_MEMORY */
#ifdef STATUS_HILITES
status_finish();
#endif
#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;
}
swapin_file
#ifdef MFLOPPY
boolean
swapin_file(lev)
int lev;
{
char to[PATHLEN], from[PATHLEN];
Sprintf(from, "%s%s", permbones, alllevels);
Sprintf(to, "%s%s", levels, alllevels);
set_levelfile_name(from, lev);
set_levelfile_name(to, lev);
if (iflags.checkspace) {
while (level_info[lev].size > freediskspace(to))
if (!swapout_oldest())
return FALSE;
}
if (wizard) {
pline("Swapping in `%s'.", from);
wait_synch();
}
copyfile(from, to);
(void) unlink(from);
level_info[lev].where = ACTIVE;
return TRUE;
}
swapout_oldest
STATIC_OVL boolean
swapout_oldest()
{
char to[PATHLEN], from[PATHLEN];
int i, oldest;
long oldtime;
if (!ramdisk)
return FALSE;
for (i = 1, oldtime = 0, oldest = 0; i <= maxledgerno(); i++)
if (level_info[i].where == ACTIVE
&& (!oldtime || level_info[i].time < oldtime)) {
oldest = i;
oldtime = level_info[i].time;
}
if (!oldest)
return FALSE;
Sprintf(from, "%s%s", levels, alllevels);
Sprintf(to, "%s%s", permbones, alllevels);
set_levelfile_name(from, oldest);
set_levelfile_name(to, oldest);
if (wizard) {
pline("Swapping out `%s'.", from);
wait_synch();
}
copyfile(from, to);
(void) unlink(from);
level_info[oldest].where = SWAPPED;
return TRUE;
}
copyfile
STATIC_OVL void
copyfile(from, to)
char *from, *to;
{
#ifdef TOS
if (_copyfile(from, to))
panic("Can't copy %s to %s", from, to);
#else
char buf[BUFSIZ]; /* this is system interaction, therefore
* BUFSIZ instead of NetHack's BUFSZ */
int nfrom, nto, fdfrom, fdto;
if ((fdfrom = open(from, O_RDONLY | O_BINARY, FCMASK)) < 0)
panic("Can't copy from %s !?", from);
if ((fdto = open(to, O_WRONLY | O_BINARY | O_CREAT | O_TRUNC, FCMASK)) < 0)
panic("Can't copy to %s", to);
do {
nfrom = read(fdfrom, buf, BUFSIZ);
nto = write(fdto, buf, nfrom);
if (nto != nfrom)
panic("Copyfile failed!");
} while (nfrom == BUFSIZ);
(void) nhclose(fdfrom);
(void) nhclose(fdto);
#endif /* TOS */
}
co_false
/* see comment in bones.c */
void
co_false()
{
count_only = FALSE;
return;
}
#endif /* MFLOPPY */
/*save.c*/