| 1 | < | /* Copyright (c) 1997 Silicon Graphics, Inc. */ | 
| 1 | > | /* Copyright (c) 1998 Silicon Graphics, Inc. */ | 
| 2 |  |  | 
| 3 |  | #ifndef lint | 
| 4 |  | static char SCCSid[] = "$SunId$ SGI"; | 
| 16 |  | #define CACHESIZE       16      /* default cache size (Mbytes, 0==inf) */ | 
| 17 |  | #endif | 
| 18 |  | #ifndef FREEBEAMS | 
| 19 | < | #define FREEBEAMS       512     /* maximum beams to free at a time */ | 
| 19 | > | #define FREEBEAMS       1500    /* maximum beams to free at a time */ | 
| 20 |  | #endif | 
| 21 |  | #ifndef PCTFREE | 
| 22 | < | #define PCTFREE         20      /* maximum fraction to free (%) */ | 
| 22 | > | #define PCTFREE         15      /* maximum fraction to free (%) */ | 
| 23 |  | #endif | 
| 24 | + | #ifndef MAXFRAG | 
| 25 | + | #define MAXFRAG         32767   /* maximum fragments/file to track (0==inf) */ | 
| 26 | + | #endif | 
| 27 | + | #ifndef MINDIRSEL | 
| 28 | + | /* minimum directory seek length */ | 
| 29 | + | #define MINDIRSEL       (4*BUFSIZ/sizeof(BEAMI)) | 
| 30 | + | #endif | 
| 31 |  |  | 
| 25 | – | /* define MAXFRAG if you want to limit fragment tracking memory */ | 
| 26 | – |  | 
| 32 |  | #ifndef BSD | 
| 33 |  | #define write   writebuf        /* safe i/o routines */ | 
| 34 |  | #define read    readbuf | 
| 35 |  | #endif | 
| 36 |  |  | 
| 37 | < | #define FRAGBLK         64      /* number of fragments to allocate at a time */ | 
| 37 | > | #define FRAGBLK         256     /* number of fragments to allocate at a time */ | 
| 38 |  |  | 
| 39 | < | int     hdcachesize = CACHESIZE*1024*1024;      /* target cache size (bytes) */ | 
| 39 | > | unsigned        hdcachesize = CACHESIZE*1024*1024;      /* target cache size */ | 
| 40 |  | unsigned long   hdclock;        /* clock value */ | 
| 41 |  |  | 
| 42 |  | HOLO    *hdlist[HDMAX+1];       /* holodeck pointers (NULL term.) */ | 
| 43 |  |  | 
| 44 | < | static struct fragment { | 
| 44 | > | static struct fraglist { | 
| 45 |  | short   nlinks;         /* number of holodeck sections using us */ | 
| 46 | < | short   nfrags;         /* number of known fragments */ | 
| 46 | > | short   writerr;        /* write error encountered */ | 
| 47 | > | int     nfrags;         /* number of known fragments */ | 
| 48 |  | BEAMI   *fi;            /* fragments, descending file position */ | 
| 49 |  | long    flen;           /* last known file length */ | 
| 50 | < | } *hdfrag;              /* fragment lists, indexed by file descriptor */ | 
| 50 | > | } *hdfragl;             /* fragment lists, indexed by file descriptor */ | 
| 51 |  |  | 
| 52 | < | static int      nhdfrags;       /* size of hdfrag array */ | 
| 52 | > | static int      nhdfragls;      /* size of hdfragl array */ | 
| 53 |  |  | 
| 54 |  |  | 
| 55 | + | char * | 
| 56 | + | hdrealloc(ptr, siz, rout)       /* (re)allocate memory, retry then error */ | 
| 57 | + | char    *ptr; | 
| 58 | + | unsigned        siz; | 
| 59 | + | char    *rout; | 
| 60 | + | { | 
| 61 | + | register char   *newp; | 
| 62 | + | /* call malloc/realloc */ | 
| 63 | + | if (ptr == NULL) newp = (char *)malloc(siz); | 
| 64 | + | else newp = (char *)realloc(ptr, siz); | 
| 65 | + | /* check success */ | 
| 66 | + | if (newp == NULL && rout != NULL) { | 
| 67 | + | hdfreecache(25, NULL);  /* free some memory */ | 
| 68 | + | errno = 0;              /* retry */ | 
| 69 | + | newp = hdrealloc(ptr, siz, NULL); | 
| 70 | + | if (newp == NULL) {     /* give up and report error */ | 
| 71 | + | sprintf(errmsg, "out of memory in %s", rout); | 
| 72 | + | error(SYSTEM, errmsg); | 
| 73 | + | } | 
| 74 | + | } | 
| 75 | + | return(newp); | 
| 76 | + | } | 
| 77 | + |  | 
| 78 | + |  | 
| 79 |  | hdattach(fd)            /* start tracking file fragments for some section */ | 
| 80 |  | register int    fd; | 
| 81 |  | { | 
| 82 | < | if (fd >= nhdfrags) { | 
| 83 | < | if (nhdfrags) | 
| 84 | < | hdfrag = (struct fragment *)realloc((char *)hdfrag, | 
| 85 | < | (fd+1)*sizeof(struct fragment)); | 
| 86 | < | else | 
| 87 | < | hdfrag = (struct fragment *)malloc( | 
| 58 | < | (fd+1)*sizeof(struct fragment)); | 
| 59 | < | if (hdfrag == NULL) | 
| 60 | < | error(SYSTEM, "out of memory in hdattach"); | 
| 61 | < | bzero((char *)(hdfrag+nhdfrags), | 
| 62 | < | (fd+1-nhdfrags)*sizeof(struct fragment)); | 
| 63 | < | nhdfrags = fd+1; | 
| 82 | > | if (fd >= nhdfragls) { | 
| 83 | > | hdfragl = (struct fraglist *)hdrealloc((char *)hdfragl, | 
| 84 | > | (fd+1)*sizeof(struct fraglist), "hdattach"); | 
| 85 | > | bzero((char *)(hdfragl+nhdfragls), | 
| 86 | > | (fd+1-nhdfragls)*sizeof(struct fraglist)); | 
| 87 | > | nhdfragls = fd+1; | 
| 88 |  | } | 
| 89 | < | hdfrag[fd].nlinks++; | 
| 90 | < | hdfrag[fd].flen = lseek(fd, 0L, 2);     /* get file length */ | 
| 89 | > | hdfragl[fd].nlinks++; | 
| 90 | > | hdfragl[fd].flen = lseek(fd, 0L, 2);    /* get file length */ | 
| 91 |  | } | 
| 92 |  |  | 
| 93 |  |  | 
| 97 |  | hdrelease(fd)           /* stop tracking file fragments for some section */ | 
| 98 |  | register int    fd; | 
| 99 |  | { | 
| 100 | < | if (fd < 0 | fd >= nhdfrags || !hdfrag[fd].nlinks) | 
| 100 | > | if (fd < 0 | fd >= nhdfragls || !hdfragl[fd].nlinks) | 
| 101 |  | return; | 
| 102 | < | if (!--hdfrag[fd].nlinks && hdfrag[fd].nfrags) { | 
| 103 | < | free((char *)hdfrag[fd].fi); | 
| 104 | < | hdfrag[fd].fi = NULL; | 
| 105 | < | hdfrag[fd].nfrags = 0; | 
| 102 | > | if (!--hdfragl[fd].nlinks && hdfragl[fd].nfrags) { | 
| 103 | > | free((char *)hdfragl[fd].fi); | 
| 104 | > | hdfragl[fd].fi = NULL; | 
| 105 | > | hdfragl[fd].nfrags = 0; | 
| 106 |  | } | 
| 107 |  | } | 
| 108 |  |  | 
| 109 |  |  | 
| 86 | – | markdirty(hp)                   /* mark holodeck section directory dirty */ | 
| 87 | – | register HOLO   *hp; | 
| 88 | – | { | 
| 89 | – | static BEAMI    smudge = {0, -1}; | 
| 90 | – |  | 
| 91 | – | if (hp->dirty)          /* already marked? */ | 
| 92 | – | return; | 
| 93 | – | hp->dirty = 1; | 
| 94 | – | if (lseek(hp->fd, biglob(hp)->fo+(nbeams(hp)-1)*sizeof(BEAMI), 0) < 0 | 
| 95 | – | || write(hp->fd, (char *)&smudge, | 
| 96 | – | sizeof(BEAMI)) != sizeof(BEAMI)) | 
| 97 | – | error(SYSTEM, "seek/write error in markdirty"); | 
| 98 | – | } | 
| 99 | – |  | 
| 100 | – |  | 
| 110 |  | HOLO * | 
| 111 |  | hdinit(fd, hproto)      /* initialize a holodeck section in a file */ | 
| 112 |  | int     fd;                     /* corresponding file descriptor */ | 
| 113 |  | HDGRID  *hproto;                /* holodeck section grid */ | 
| 114 |  | { | 
| 115 | + | long    rtrunc; | 
| 116 |  | long    fpos; | 
| 117 |  | register HOLO   *hp; | 
| 118 |  | register int    n; | 
| 133 |  | if (read(fd, (char *)(hp->bi+1), n) != n) | 
| 134 |  | error(SYSTEM, "failure loading holodeck directory"); | 
| 135 |  | /* check that it's clean */ | 
| 136 | < | if (hp->bi[nbeams(hp)].fo < 0) | 
| 137 | < | error(USER, "dirty holodeck section"); | 
| 136 | > | for (n = nbeams(hp); n > 0; n--) | 
| 137 | > | if (hp->bi[n].fo < 0) { | 
| 138 | > | hp->bi[n].fo = 0; | 
| 139 | > | error(WARNING, "dirty holodeck section"); | 
| 140 | > | break; | 
| 141 | > | } | 
| 142 |  | } else {                        /* assume we're creating it */ | 
| 143 |  | if ((hp = hdalloc(hproto)) == NULL) | 
| 144 |  | goto memerr; | 
| 152 |  | hp->fd = fd; | 
| 153 |  | hp->dirty = 0; | 
| 154 |  | biglob(hp)->fo = fpos + sizeof(HDGRID); | 
| 155 | < | biglob(hp)->nrd = 0;            /* count rays on disk */ | 
| 156 | < | for (n = nbeams(hp); n > 0; n--) | 
| 157 | < | biglob(hp)->nrd += hp->bi[n].nrd; | 
| 155 | > | /* start tracking fragments */ | 
| 156 | > | hdattach(fd); | 
| 157 | > | /* check rays on disk */ | 
| 158 | > | fpos = hdfilen(fd); | 
| 159 | > | biglob(hp)->nrd = rtrunc = 0; | 
| 160 | > | for (n = hproto == NULL ? nbeams(hp) : 0; n > 0; n--) | 
| 161 | > | if (hp->bi[n].nrd) | 
| 162 | > | if (hp->bi[n].fo+hp->bi[n].nrd*sizeof(RAYVAL) > fpos) { | 
| 163 | > | rtrunc += hp->bi[n].nrd; | 
| 164 | > | hp->bi[n].nrd = 0; | 
| 165 | > | } else | 
| 166 | > | biglob(hp)->nrd += hp->bi[n].nrd; | 
| 167 | > | if (rtrunc) { | 
| 168 | > | sprintf(errmsg, "truncated section, %ld rays lost (%.1f%%)", | 
| 169 | > | rtrunc, 100.*rtrunc/(rtrunc+biglob(hp)->nrd)); | 
| 170 | > | error(WARNING, errmsg); | 
| 171 | > | } | 
| 172 |  | /* add to holodeck list */ | 
| 173 |  | for (n = 0; n < HDMAX; n++) | 
| 174 |  | if (hdlist[n] == NULL) { | 
| 175 |  | hdlist[n] = hp; | 
| 176 |  | break; | 
| 177 |  | } | 
| 150 | – | /* start tracking fragments (last) */ | 
| 151 | – | hdattach(fd); | 
| 178 |  | /* all done */ | 
| 179 |  | return(hp); | 
| 180 |  | memerr: | 
| 182 |  | } | 
| 183 |  |  | 
| 184 |  |  | 
| 185 | + | markdirty(hp, i)                /* mark holodeck directory position dirty */ | 
| 186 | + | register HOLO   *hp; | 
| 187 | + | int     i; | 
| 188 | + | { | 
| 189 | + | static BEAMI    smudge = {0, -1}; | 
| 190 | + | int     mindist, minpos; | 
| 191 | + | register int    j; | 
| 192 | + |  | 
| 193 | + | if (!hp->dirty++) {                     /* write smudge first time */ | 
| 194 | + | if (lseek(hp->fd, biglob(hp)->fo+(i-1)*sizeof(BEAMI), 0) < 0 | 
| 195 | + | || write(hp->fd, (char *)&smudge, | 
| 196 | + | sizeof(BEAMI)) != sizeof(BEAMI)) | 
| 197 | + | error(SYSTEM, "seek/write error in markdirty"); | 
| 198 | + | hp->dirseg[0].s = i; | 
| 199 | + | hp->dirseg[0].n = 1; | 
| 200 | + | return; | 
| 201 | + | } | 
| 202 | + | /* insert into segment list */ | 
| 203 | + | for (j = hp->dirty; j--; ) { | 
| 204 | + | if (!j || hp->dirseg[j-1].s < i) { | 
| 205 | + | hp->dirseg[j].s = i; | 
| 206 | + | hp->dirseg[j].n = 1; | 
| 207 | + | break; | 
| 208 | + | } | 
| 209 | + | copystruct(hp->dirseg+j, hp->dirseg+(j-1)); | 
| 210 | + | } | 
| 211 | + | do {                            /* check neighbors */ | 
| 212 | + | mindist = nbeams(hp);           /* find closest */ | 
| 213 | + | for (j = hp->dirty; --j; ) | 
| 214 | + | if (hp->dirseg[j].s - | 
| 215 | + | (hp->dirseg[j-1].s + hp->dirseg[j-1].n) | 
| 216 | + | < mindist) { | 
| 217 | + | minpos = j; | 
| 218 | + | mindist = hp->dirseg[j].s - | 
| 219 | + | (hp->dirseg[j-1].s + hp->dirseg[j-1].n); | 
| 220 | + | } | 
| 221 | + | /* good enough? */ | 
| 222 | + | if (hp->dirty <= MAXDIRSE && mindist > MINDIRSEL) | 
| 223 | + | break; | 
| 224 | + | j = minpos - 1;                 /* coalesce neighbors */ | 
| 225 | + | if (hp->dirseg[j].s + hp->dirseg[j].n < | 
| 226 | + | hp->dirseg[minpos].s + hp->dirseg[minpos].n) | 
| 227 | + | hp->dirseg[j].n = hp->dirseg[minpos].s + | 
| 228 | + | hp->dirseg[minpos].n - hp->dirseg[j].s; | 
| 229 | + | hp->dirty--; | 
| 230 | + | while (++j < hp->dirty)         /* close the gap */ | 
| 231 | + | copystruct(hp->dirseg+j, hp->dirseg+(j+1)); | 
| 232 | + | } while (mindist <= MINDIRSEL); | 
| 233 | + | } | 
| 234 | + |  | 
| 235 | + |  | 
| 236 |  | int | 
| 237 | < | hdsync(hp)                      /* update directory on disk if necessary */ | 
| 237 | > | hdsync(hp, all)                 /* update beams and directory on disk */ | 
| 238 |  | register HOLO   *hp; | 
| 239 | + | int     all; | 
| 240 |  | { | 
| 241 |  | register int    j, n; | 
| 242 |  |  | 
| 243 | < | if (hp == NULL) {               /* do all */ | 
| 243 | > | if (hp == NULL) {               /* do all holodecks */ | 
| 244 |  | n = 0; | 
| 245 |  | for (j = 0; hdlist[j] != NULL; j++) | 
| 246 | < | n += hdsync(hdlist[j]); | 
| 246 | > | n += hdsync(hdlist[j], all); | 
| 247 |  | return(n); | 
| 248 |  | } | 
| 249 | < | if (!hp->dirty)                 /* check first */ | 
| 249 | > | /* sync the beams */ | 
| 250 | > | for (j = (all ? nbeams(hp) : 0); j > 0; j--) | 
| 251 | > | if (hp->bl[j] != NULL) | 
| 252 | > | hdsyncbeam(hp, j); | 
| 253 | > | if (!hp->dirty)                 /* directory clean? */ | 
| 254 |  | return(0); | 
| 255 | < | errno = 0; | 
| 256 | < | if (lseek(hp->fd, biglob(hp)->fo, 0) < 0) | 
| 257 | < | error(SYSTEM, "cannot seek on holodeck file"); | 
| 258 | < | n = nbeams(hp)*sizeof(BEAMI); | 
| 259 | < | if (write(hp->fd, (char *)(hp->bi+1), n) != n) | 
| 260 | < | error(SYSTEM, "cannot update holodeck section directory"); | 
| 261 | < | hp->dirty = 0; | 
| 255 | > | errno = 0;                      /* write dirty segments */ | 
| 256 | > | for (j = 0; j < hp->dirty; j++) { | 
| 257 | > | if (lseek(hp->fd, biglob(hp)->fo + | 
| 258 | > | (hp->dirseg[j].s-1)*sizeof(BEAMI), 0) < 0) | 
| 259 | > | error(SYSTEM, "cannot seek on holodeck file"); | 
| 260 | > | n = hp->dirseg[j].n * sizeof(BEAMI); | 
| 261 | > | if (write(hp->fd, (char *)(hp->bi+hp->dirseg[j].s), n) != n) | 
| 262 | > | error(SYSTEM, "cannot update section directory"); | 
| 263 | > | } | 
| 264 | > | hp->dirty = 0;                  /* all clean */ | 
| 265 |  | return(1); | 
| 266 |  | } | 
| 267 |  |  | 
| 268 |  |  | 
| 269 | < | long | 
| 269 | > | unsigned | 
| 270 |  | hdmemuse(all)           /* return memory usage (in bytes) */ | 
| 271 |  | int     all;                    /* include overhead (painful) */ | 
| 272 |  | { | 
| 285 |  | } | 
| 286 |  | } | 
| 287 |  | if (all) | 
| 288 | < | for (j = 0; j < nhdfrags; j++) { | 
| 289 | < | total += sizeof(struct fragment); | 
| 290 | < | if (hdfrag[j].nfrags) | 
| 288 | > | for (j = 0; j < nhdfragls; j++) { | 
| 289 | > | total += sizeof(struct fraglist); | 
| 290 | > | if (hdfragl[j].nfrags) | 
| 291 |  | total += FRAGBLK*sizeof(BEAMI) * | 
| 292 | < | ((hdfrag[j].nfrags-1)/FRAGBLK + 1) ; | 
| 292 | > | ((hdfragl[j].nfrags-1)/FRAGBLK + 1) ; | 
| 293 |  | } | 
| 294 |  | return(total); | 
| 295 |  | } | 
| 303 |  |  | 
| 304 |  | if (fd < 0) | 
| 305 |  | return(-1); | 
| 306 | < | if (fd >= nhdfrags || !hdfrag[fd].nlinks) { | 
| 306 | > | if (fd >= nhdfragls || !hdfragl[fd].nlinks) { | 
| 307 |  | if ((fpos = lseek(fd, 0L, 1)) < 0) | 
| 308 |  | return(-1); | 
| 309 |  | flen = lseek(fd, 0L, 2); | 
| 310 |  | lseek(fd, fpos, 0); | 
| 311 |  | return(flen); | 
| 312 |  | } | 
| 313 | < | return(hdfrag[fd].flen); | 
| 313 | > | return(hdfragl[fd].flen); | 
| 314 |  | } | 
| 315 |  |  | 
| 316 |  |  | 
| 357 |  | hp->bl[i]->tick = hdclock;      /* preempt swap */ | 
| 358 |  | if (hdcachesize > 0 && hdmemuse(0) >= hdcachesize) | 
| 359 |  | hdfreecache(PCTFREE, NULL);     /* free some space */ | 
| 275 | – | errno = 0; | 
| 360 |  | if (hp->bl[i] == NULL) {                /* allocate (and load) */ | 
| 361 |  | n = hp->bi[i].nrd + nr; | 
| 362 | < | if ((hp->bl[i] = (BEAM *)malloc(hdbsiz(n))) == NULL) | 
| 279 | < | goto memerr; | 
| 362 | > | hp->bl[i] = (BEAM *)hdrealloc(NULL, hdbsiz(n), "hdnewrays"); | 
| 363 |  | blglob(hp)->nrm += n; | 
| 364 |  | if (n = hp->bl[i]->nrm = hp->bi[i].nrd) { | 
| 365 | + | errno = 0; | 
| 366 |  | if (lseek(hp->fd, hp->bi[i].fo, 0) < 0) | 
| 367 |  | error(SYSTEM, "seek error on holodeck file"); | 
| 368 |  | n *= sizeof(RAYVAL); | 
| 371 |  | "error reading beam from holodeck file"); | 
| 372 |  | } | 
| 373 |  | } else {                                /* just grow in memory */ | 
| 374 | < | hp->bl[i] = (BEAM *)realloc( (char *)hp->bl[i], | 
| 375 | < | hdbsiz(hp->bl[i]->nrm + nr) ); | 
| 292 | < | if (hp->bl[i] == NULL) | 
| 293 | < | goto memerr; | 
| 374 | > | hp->bl[i] = (BEAM *)hdrealloc((char *)hp->bl[i], | 
| 375 | > | hdbsiz(hp->bl[i]->nrm + nr), "hdnewrays"); | 
| 376 |  | blglob(hp)->nrm += nr; | 
| 377 |  | } | 
| 378 |  | p = hdbray(hp->bl[i]) + hp->bl[i]->nrm; | 
| 379 |  | hp->bl[i]->nrm += nr;                   /* update in-core structure */ | 
| 380 |  | bzero((char *)p, nr*sizeof(RAYVAL)); | 
| 381 | < | hp->bl[i]->tick = ++hdclock;            /* update LRU clock */ | 
| 300 | < | blglob(hp)->tick = hdclock; | 
| 381 | > | blglob(hp)->tick = hp->bl[i]->tick = hdclock++; /* update LRU clock */ | 
| 382 |  | return(p);                              /* point to new rays */ | 
| 302 | – | memerr: | 
| 303 | – | error(SYSTEM, "out of memory in hdnewrays"); | 
| 383 |  | } | 
| 384 |  |  | 
| 385 |  |  | 
| 397 |  | return(NULL); | 
| 398 |  | if (hdcachesize > 0 && hdmemuse(0) >= hdcachesize) | 
| 399 |  | hdfreecache(PCTFREE, NULL);     /* get free space */ | 
| 400 | < | errno = 0; | 
| 322 | < | if ((hp->bl[i] = (BEAM *)malloc(hdbsiz(n))) == NULL) | 
| 323 | < | error(SYSTEM, "cannot allocate memory for beam"); | 
| 400 | > | hp->bl[i] = (BEAM *)hdrealloc(NULL, hdbsiz(n), "hdgetbeam"); | 
| 401 |  | blglob(hp)->nrm += hp->bl[i]->nrm = n; | 
| 402 | + | errno = 0; | 
| 403 |  | if (lseek(hp->fd, hp->bi[i].fo, 0) < 0) | 
| 404 |  | error(SYSTEM, "seek error on holodeck file"); | 
| 405 |  | n *= sizeof(RAYVAL); | 
| 406 |  | if (read(hp->fd, (char *)hdbray(hp->bl[i]), n) != n) | 
| 407 |  | error(SYSTEM, "error reading beam from holodeck file"); | 
| 408 |  | } | 
| 409 | < | hp->bl[i]->tick = ++hdclock;    /* update LRU clock */ | 
| 332 | < | blglob(hp)->tick = hdclock; | 
| 409 | > | blglob(hp)->tick = hp->bl[i]->tick = hdclock++; /* update LRU clock */ | 
| 410 |  | return(hp->bl[i]); | 
| 411 |  | } | 
| 412 |  |  | 
| 413 |  |  | 
| 414 |  | int | 
| 415 | < | hdgetbi(hp, i)                  /* allocate a file fragment */ | 
| 416 | < | register HOLO   *hp; | 
| 340 | < | register int    i; | 
| 415 | > | hdfilord(hb1, hb2)      /* order beams for quick loading */ | 
| 416 | > | register HDBEAMI        *hb1, *hb2; | 
| 417 |  | { | 
| 418 | < | int     nrays = hp->bl[i]->nrm; | 
| 418 | > | register long   c; | 
| 419 | > | /* residents go first */ | 
| 420 | > | if (hb2->h->bl[hb2->b] != NULL) | 
| 421 | > | return(hb1->h->bl[hb1->b] == NULL); | 
| 422 | > | if (hb1->h->bl[hb1->b] != NULL) | 
| 423 | > | return(-1); | 
| 424 | > | /* otherwise sort by file descriptor */ | 
| 425 | > | if ((c = hb1->h->fd - hb2->h->fd)) | 
| 426 | > | return(c); | 
| 427 | > | /* then by position in file */ | 
| 428 | > | c = hb1->h->bi[hb1->b].fo - hb2->h->bi[hb2->b].fo; | 
| 429 | > | return(c > 0 ? 1 : c < 0 ? -1 : 0); | 
| 430 | > | } | 
| 431 |  |  | 
| 344 | – | if (hp->bi[i].nrd == nrays)     /* current one will do? */ | 
| 345 | – | return(0); | 
| 432 |  |  | 
| 433 | < | if (hp->fd >= nhdfrags || !hdfrag[hp->fd].nlinks) /* untracked */ | 
| 434 | < | hp->bi[i].fo = lseek(hp->fd, 0L, 2); | 
| 433 | > | hdloadbeams(hb, n, bf)  /* load a list of beams in optimal order */ | 
| 434 | > | register HDBEAMI        *hb;    /* list gets sorted by hdfilord() */ | 
| 435 | > | int     n;                      /* list length */ | 
| 436 | > | int     (*bf)();                /* callback function (optional) */ | 
| 437 | > | { | 
| 438 | > | unsigned        origcachesize, memuse; | 
| 439 | > | int     bytesloaded, needbytes, bytes2free; | 
| 440 | > | register BEAM   *bp; | 
| 441 | > | register int    i; | 
| 442 | > | /* precheck consistency */ | 
| 443 | > | if (n <= 0) return; | 
| 444 | > | for (i = n; i--; ) | 
| 445 | > | if (hb[i].h == NULL || hb[i].b < 1 | hb[i].b > nbeams(hb[i].h)) | 
| 446 | > | error(CONSISTENCY, "bad beam in hdloadbeams"); | 
| 447 | > | /* sort list for optimal access */ | 
| 448 | > | qsort((char *)hb, n, sizeof(HDBEAMI), hdfilord); | 
| 449 | > | bytesloaded = 0;                /* run through loaded beams */ | 
| 450 | > | for ( ; n && (bp = hb->h->bl[hb->b]) != NULL; n--, hb++) { | 
| 451 | > | bp->tick = hdclock;     /* preempt swap */ | 
| 452 | > | bytesloaded += bp->nrm; | 
| 453 | > | if (bf != NULL) | 
| 454 | > | (*bf)(bp, hb); | 
| 455 | > | } | 
| 456 | > | bytesloaded *= sizeof(RAYVAL); | 
| 457 | > | if ((origcachesize = hdcachesize) > 0) { | 
| 458 | > | needbytes = 0;          /* figure out memory needs */ | 
| 459 | > | for (i = n; i--; ) | 
| 460 | > | needbytes += hb[i].h->bi[hb[i].b].nrd; | 
| 461 | > | needbytes *= sizeof(RAYVAL); | 
| 462 | > | do {                            /* free enough memory */ | 
| 463 | > | memuse = hdmemuse(0); | 
| 464 | > | bytes2free = needbytes - (int)(hdcachesize-memuse); | 
| 465 | > | if (bytes2free > (int)(memuse - bytesloaded)) | 
| 466 | > | bytes2free = memuse - bytesloaded; | 
| 467 | > | } while (bytes2free > 0 && | 
| 468 | > | hdfreecache(100*bytes2free/memuse, NULL) < 0); | 
| 469 | > | hdcachesize = 0;                /* load beams w/o swap */ | 
| 470 | > | } | 
| 471 | > | for (i = 0; i < n; i++) | 
| 472 | > | if ((bp = hdgetbeam(hb[i].h, hb[i].b)) != NULL && bf != NULL) | 
| 473 | > | (*bf)(bp, hb+i); | 
| 474 | > | hdcachesize = origcachesize;    /* resume dynamic swapping */ | 
| 475 | > | } | 
| 476 |  |  | 
| 350 | – | else if (hp->bi[i].fo + hp->bi[i].nrd*sizeof(RAYVAL) == | 
| 351 | – | hdfrag[hp->fd].flen)            /* EOF special case */ | 
| 352 | – | hdfrag[hp->fd].flen = hp->bi[i].fo + nrays*sizeof(RAYVAL); | 
| 477 |  |  | 
| 478 | < | else {                                          /* general case */ | 
| 479 | < | register struct fragment        *f = &hdfrag[hp->fd]; | 
| 480 | < | register int    j, k; | 
| 481 | < | /* relinquish old fragment */ | 
| 482 | < | if (hp->bi[i].nrd) { | 
| 483 | < | j = f->nfrags++; | 
| 484 | < | #ifdef MAXFRAG | 
| 485 | < | if (j >= MAXFRAG-1) | 
| 486 | < | f->nfrags--; | 
| 478 | > | hdfreefrag(fd, bi)                      /* free a file fragment */ | 
| 479 | > | int     fd; | 
| 480 | > | register BEAMI  *bi; | 
| 481 | > | { | 
| 482 | > | register struct fraglist        *f; | 
| 483 | > | register int    j, k; | 
| 484 | > |  | 
| 485 | > | if (bi->nrd == 0) | 
| 486 | > | return; | 
| 487 | > | #ifdef DEBUG | 
| 488 | > | if (fd < 0 | fd >= nhdfragls || !hdfragl[fd].nlinks) | 
| 489 | > | error(CONSISTENCY, "bad file descriptor in hdfreefrag"); | 
| 490 |  | #endif | 
| 491 | < | if (j % FRAGBLK == 0) {         /* more frag. space */ | 
| 492 | < | if (f->fi == NULL) | 
| 493 | < | f->fi = (BEAMI *)malloc( | 
| 494 | < | FRAGBLK*sizeof(BEAMI)); | 
| 495 | < | else | 
| 496 | < | f->fi = (BEAMI *)realloc((char *)f->fi, | 
| 497 | < | (j+FRAGBLK)*sizeof(BEAMI)); | 
| 498 | < | if (f->fi == NULL) | 
| 499 | < | error(SYSTEM, | 
| 500 | < | "out of memory in hdgetbi"); | 
| 501 | < | } | 
| 502 | < | for ( ; ; j--) {        /* insert in descending list */ | 
| 503 | < | if (!j || hp->bi[i].fo < f->fi[j-1].fo) { | 
| 504 | < | f->fi[j].fo = hp->bi[i].fo; | 
| 505 | < | f->fi[j].nrd = hp->bi[i].nrd; | 
| 506 | < | break; | 
| 507 | < | } | 
| 508 | < | copystruct(f->fi+j, f->fi+j-1); | 
| 509 | < | } | 
| 491 | > | f = &hdfragl[fd]; | 
| 492 | > | if (f->nfrags % FRAGBLK == 0) { /* delete empty remnants */ | 
| 493 | > | for (j = k = 0; k < f->nfrags; j++, k++) { | 
| 494 | > | while (f->fi[k].nrd == 0) | 
| 495 | > | if (++k >= f->nfrags) | 
| 496 | > | goto endloop; | 
| 497 | > | if (k > j) | 
| 498 | > | copystruct(f->fi+j, f->fi+k); | 
| 499 | > | } | 
| 500 | > | endloop: | 
| 501 | > | f->nfrags = j; | 
| 502 | > | } | 
| 503 | > | j = f->nfrags++;                /* allocate a slot in free list */ | 
| 504 | > | #if MAXFRAG | 
| 505 | > | if (j >= MAXFRAG-1) | 
| 506 | > | f->nfrags--; | 
| 507 | > | #endif | 
| 508 | > | if (j % FRAGBLK == 0) {         /* more free list space */ | 
| 509 | > | register BEAMI  *newp; | 
| 510 | > | if (f->fi == NULL) | 
| 511 | > | newp = (BEAMI *)malloc((j+FRAGBLK)*sizeof(BEAMI)); | 
| 512 | > | else | 
| 513 | > | newp = (BEAMI *)realloc((char *)f->fi, | 
| 514 | > | (j+FRAGBLK)*sizeof(BEAMI)); | 
| 515 | > | if (newp == NULL) { | 
| 516 | > | f->nfrags--;    /* graceful failure */ | 
| 517 | > | return; | 
| 518 | > | } | 
| 519 | > | f->fi = newp; | 
| 520 | > | } | 
| 521 | > | for ( ; ; j--) {                /* insert in descending list */ | 
| 522 | > | if (!j || bi->fo < f->fi[j-1].fo) { | 
| 523 | > | f->fi[j].fo = bi->fo; | 
| 524 | > | f->fi[j].nrd = bi->nrd; | 
| 525 | > | break; | 
| 526 | > | } | 
| 527 | > | copystruct(f->fi+j, f->fi+(j-1)); | 
| 528 | > | } | 
| 529 |  | /* coalesce adjacent fragments */ | 
| 530 | < | for (j = k = 0; k < f->nfrags; j++, k++) { | 
| 531 | < | if (k > j) | 
| 532 | < | copystruct(f->fi+j, f->fi+k); | 
| 533 | < | while (k+1 < f->nfrags && f->fi[k+1].fo + | 
| 534 | < | f->fi[k+1].nrd*sizeof(RAYVAL) | 
| 535 | < | == f->fi[j].fo) { | 
| 536 | < | f->fi[j].fo -= | 
| 537 | < | f->fi[++k].nrd*sizeof(RAYVAL); | 
| 538 | < | f->fi[j].nrd += f->fi[k].nrd; | 
| 539 | < | } | 
| 530 | > | /* successors never empty */ | 
| 531 | > | if (j && f->fi[j-1].fo == f->fi[j].fo + f->fi[j].nrd*sizeof(RAYVAL)) { | 
| 532 | > | f->fi[j].nrd += f->fi[j-1].nrd; | 
| 533 | > | f->fi[j-1].nrd = 0; | 
| 534 | > | } | 
| 535 | > | for (k = j+1; k < f->nfrags; k++)       /* get non-empty predecessor */ | 
| 536 | > | if (f->fi[k].nrd) { | 
| 537 | > | if (f->fi[j].fo == f->fi[k].fo + | 
| 538 | > | f->fi[k].nrd*sizeof(RAYVAL)) { | 
| 539 | > | f->fi[k].nrd += f->fi[j].nrd; | 
| 540 | > | f->fi[j].nrd = 0; | 
| 541 |  | } | 
| 542 | < | f->nfrags = j; | 
| 542 | > | break; | 
| 543 |  | } | 
| 544 | < | k = -1;                 /* find closest-sized fragment */ | 
| 545 | < | for (j = f->nfrags; j-- > 0; ) | 
| 546 | < | if (f->fi[j].nrd >= nrays && | 
| 547 | < | (k < 0 || f->fi[j].nrd < f->fi[k].nrd)) | 
| 548 | < | if (f->fi[k=j].nrd == nrays) | 
| 549 | < | break; | 
| 550 | < | if (k < 0) {            /* no fragment -- extend file */ | 
| 551 | < | hp->bi[i].fo = f->flen; | 
| 552 | < | f->flen += nrays*sizeof(RAYVAL); | 
| 553 | < | } else {                /* else use fragment */ | 
| 554 | < | hp->bi[i].fo = f->fi[k].fo; | 
| 555 | < | if (f->fi[k].nrd == nrays) {    /* delete fragment */ | 
| 556 | < | f->nfrags--; | 
| 557 | < | for (j = k; j < f->nfrags; j++) | 
| 558 | < | copystruct(f->fi+j, f->fi+j+1); | 
| 559 | < | } else {                        /* else shrink it */ | 
| 560 | < | f->fi[k].fo += nrays*sizeof(RAYVAL); | 
| 561 | < | f->fi[k].nrd -= nrays; | 
| 562 | < | } | 
| 563 | < | } | 
| 544 | > | } | 
| 545 | > |  | 
| 546 | > |  | 
| 547 | > | long | 
| 548 | > | hdallocfrag(fd, nrays)          /* allocate a file fragment */ | 
| 549 | > | int     fd; | 
| 550 | > | unsigned int4   nrays; | 
| 551 | > | { | 
| 552 | > | register struct fraglist        *f; | 
| 553 | > | register int    j, k; | 
| 554 | > | long    nfo; | 
| 555 | > |  | 
| 556 | > | if (nrays == 0) | 
| 557 | > | return(-1L); | 
| 558 | > | #ifdef DEBUG | 
| 559 | > | if (fd < 0 | fd >= nhdfragls || !hdfragl[fd].nlinks) | 
| 560 | > | error(CONSISTENCY, "bad file descriptor in hdallocfrag"); | 
| 561 | > | #endif | 
| 562 | > | f = &hdfragl[fd]; | 
| 563 | > | k = -1;                         /* find closest-sized fragment */ | 
| 564 | > | for (j = f->nfrags; j-- > 0; ) | 
| 565 | > | if (f->fi[j].nrd >= nrays && | 
| 566 | > | (k < 0 || f->fi[j].nrd < f->fi[k].nrd)) | 
| 567 | > | if (f->fi[k=j].nrd == nrays) | 
| 568 | > | break; | 
| 569 | > | if (k < 0) {                    /* no fragment -- extend file */ | 
| 570 | > | nfo = f->flen; | 
| 571 | > | f->flen += nrays*sizeof(RAYVAL); | 
| 572 | > | } else {                        /* else use fragment */ | 
| 573 | > | nfo = f->fi[k].fo; | 
| 574 | > | f->fi[k].fo += nrays*sizeof(RAYVAL); | 
| 575 | > | f->fi[k].nrd -= nrays; | 
| 576 |  | } | 
| 577 | + | return(nfo); | 
| 578 | + | } | 
| 579 | + |  | 
| 580 | + |  | 
| 581 | + | int | 
| 582 | + | hdsyncbeam(hp, i)               /* sync beam in memory with beam on disk */ | 
| 583 | + | register HOLO   *hp; | 
| 584 | + | register int    i; | 
| 585 | + | { | 
| 586 | + | unsigned int4   nrays; | 
| 587 | + | unsigned int    n; | 
| 588 | + | long    nfo; | 
| 589 | + | /* check file status */ | 
| 590 | + | if (hdfragl[hp->fd].writerr) | 
| 591 | + | return(-1); | 
| 592 | + | #ifdef DEBUG | 
| 593 | + | if (i < 1 | i > nbeams(hp)) | 
| 594 | + | error(CONSISTENCY, "bad beam index in hdsyncbeam"); | 
| 595 | + | #endif | 
| 596 | + | /* is current fragment OK? */ | 
| 597 | + | if (hp->bl[i] == NULL || (nrays = hp->bl[i]->nrm) == hp->bi[i].nrd) | 
| 598 | + | return(0); | 
| 599 | + | if (hp->bi[i].nrd)              /* relinquish old fragment */ | 
| 600 | + | hdfreefrag(hp->fd, &hp->bi[i]); | 
| 601 | + | if (nrays) {                    /* get and write new fragment */ | 
| 602 | + | nfo = hdallocfrag(hp->fd, nrays); | 
| 603 | + | errno = 0; | 
| 604 | + | if (lseek(hp->fd, nfo, 0) < 0) | 
| 605 | + | error(SYSTEM, "cannot seek on holodeck file"); | 
| 606 | + | n = hp->bl[i]->nrm * sizeof(RAYVAL); | 
| 607 | + | if (write(hp->fd, (char *)hdbray(hp->bl[i]), n) != n) { | 
| 608 | + | hdfragl[hp->fd].writerr++; | 
| 609 | + | hdsync(NULL, 0);        /* sync directories */ | 
| 610 | + | error(SYSTEM, "write error in hdsyncbeam"); | 
| 611 | + | } | 
| 612 | + | hp->bi[i].fo = nfo; | 
| 613 | + | } else | 
| 614 | + | hp->bi[i].fo = 0L; | 
| 615 |  | biglob(hp)->nrd += nrays - hp->bi[i].nrd; | 
| 616 |  | hp->bi[i].nrd = nrays; | 
| 617 | < | markdirty(hp);          /* section directory now out of date */ | 
| 617 | > | markdirty(hp, i);               /* section directory now out of date */ | 
| 618 |  | return(1); | 
| 619 |  | } | 
| 620 |  |  | 
| 624 |  | register HOLO   *hp; | 
| 625 |  | register int    i; | 
| 626 |  | { | 
| 627 | < | int     nchanged, n; | 
| 627 | > | int     nchanged; | 
| 628 |  |  | 
| 629 |  | if (hp == NULL) {               /* clear all holodecks */ | 
| 630 |  | nchanged = 0; | 
| 632 |  | nchanged += hdfreebeam(hdlist[i], 0); | 
| 633 |  | return(nchanged); | 
| 634 |  | } | 
| 635 | < | if (hp->fd < 0)                 /* check for recursive error */ | 
| 636 | < | return(-1); | 
| 635 | > | if (hdfragl[hp->fd].writerr)    /* check for file error */ | 
| 636 | > | return(0); | 
| 637 |  | if (i == 0) {                   /* clear entire holodeck */ | 
| 638 |  | nchanged = 0; | 
| 639 |  | for (i = nbeams(hp); i > 0; i--) | 
| 641 |  | nchanged += hdfreebeam(hp, i); | 
| 642 |  | return(nchanged); | 
| 643 |  | } | 
| 644 | + | #ifdef DEBUG | 
| 645 |  | if (i < 1 | i > nbeams(hp)) | 
| 646 |  | error(CONSISTENCY, "bad beam index to hdfreebeam"); | 
| 647 | + | #endif | 
| 648 |  | if (hp->bl[i] == NULL) | 
| 649 |  | return(0); | 
| 650 |  | /* check for additions */ | 
| 651 |  | nchanged = hp->bl[i]->nrm - hp->bi[i].nrd; | 
| 652 | < | if (nchanged) { | 
| 653 | < | hdgetbi(hp, i);                 /* allocate a file position */ | 
| 455 | < | errno = 0; | 
| 456 | < | if (lseek(hp->fd, hp->bi[i].fo, 0) < 0) | 
| 457 | < | error(SYSTEM, "cannot seek on holodeck file"); | 
| 458 | < | n = hp->bl[i]->nrm * sizeof(RAYVAL); | 
| 459 | < | if (write(hp->fd, (char *)hdbray(hp->bl[i]), n) != n) { | 
| 460 | < | hp->fd = -1;            /* avoid recursive error */ | 
| 461 | < | error(SYSTEM, "write error in hdfreebeam"); | 
| 462 | < | } | 
| 463 | < | } | 
| 652 | > | if (nchanged) | 
| 653 | > | hdsyncbeam(hp, i);              /* write new fragment */ | 
| 654 |  | blglob(hp)->nrm -= hp->bl[i]->nrm; | 
| 655 |  | free((char *)hp->bl[i]);                /* free memory */ | 
| 656 |  | hp->bl[i] = NULL; | 
| 664 |  | register int    i; | 
| 665 |  | { | 
| 666 |  | static BEAM     emptybeam; | 
| 667 | < | int     nchanged, n; | 
| 667 | > | int     nchanged; | 
| 668 |  |  | 
| 669 |  | if (hp == NULL) {               /* clobber all holodecks */ | 
| 670 |  | nchanged = 0; | 
| 683 |  | #endif | 
| 684 |  | return(nchanged); | 
| 685 |  | } | 
| 686 | + | #ifdef DEBUG | 
| 687 |  | if (i < 1 | i > nbeams(hp)) | 
| 688 |  | error(CONSISTENCY, "bad beam index to hdkillbeam"); | 
| 689 | + | #endif | 
| 690 |  | if (hp->bl[i] != NULL) {        /* free memory */ | 
| 691 |  | blglob(hp)->nrm -= nchanged = hp->bl[i]->nrm; | 
| 692 |  | free((char *)hp->bl[i]); | 
| 694 |  | nchanged = hp->bi[i].nrd; | 
| 695 |  | if (hp->bi[i].nrd) {            /* free file fragment */ | 
| 696 |  | hp->bl[i] = &emptybeam; | 
| 697 | < | hdgetbi(hp, i); | 
| 697 | > | hdsyncbeam(hp, i); | 
| 698 |  | } | 
| 699 |  | hp->bl[i] = NULL; | 
| 700 |  | return(nchanged); | 
| 701 |  | } | 
| 702 |  |  | 
| 703 |  |  | 
| 704 | < | hdlrulist(ha, ba, n, hp)        /* add beams from holodeck to LRU list */ | 
| 705 | < | register HOLO   *ha[];                  /* section list (NULL terminated) */ | 
| 706 | < | register int    ba[];                   /* beam index to go with section */ | 
| 707 | < | int     n;                              /* length of arrays minus 1 */ | 
| 704 | > | int | 
| 705 | > | hdlrulist(hb, nents, n, hp)     /* add beams from holodeck to LRU list */ | 
| 706 | > | register HDBEAMI        *hb;            /* beam list */ | 
| 707 | > | int     nents;                          /* current list length */ | 
| 708 | > | int     n;                              /* maximum list length */ | 
| 709 |  | register HOLO   *hp;                    /* section we're adding from */ | 
| 710 |  | { | 
| 711 |  | register int    i, j; | 
| 519 | – | int     nents; | 
| 520 | – | /* find last entry in LRU list */ | 
| 521 | – | for (j = 0; ha[j] != NULL; j++) | 
| 522 | – | ; | 
| 523 | – | nents = j; | 
| 712 |  | /* insert each beam from hp */ | 
| 713 | < | for (i = nbeams(hp); i > 0; i--) { | 
| 713 | > | for (i = 1; i <= nbeams(hp); i++) { | 
| 714 |  | if (hp->bl[i] == NULL)          /* check if loaded */ | 
| 715 |  | continue; | 
| 716 | < | if ((j = ++nents) > n)          /* grow list if we can */ | 
| 716 | > | #if 0 | 
| 717 | > | if (hp->bl[i]->tick == hdclock) /* preempt swap? */ | 
| 718 | > | continue; | 
| 719 | > | #endif | 
| 720 | > | if ((j = ++nents) >= n)         /* grow list if we can */ | 
| 721 |  | nents--; | 
| 722 |  | for ( ; ; ) {                   /* bubble into place */ | 
| 723 |  | if (!--j || hp->bl[i]->tick >= | 
| 724 | < | ha[j-1]->bl[ba[j-1]]->tick) { | 
| 725 | < | ha[j] = hp; | 
| 726 | < | ba[j] = i; | 
| 724 | > | hb[j-1].h->bl[hb[j-1].b]->tick) { | 
| 725 | > | hb[j].h = hp; | 
| 726 | > | hb[j].b = i; | 
| 727 |  | break; | 
| 728 |  | } | 
| 729 | < | ha[j] = ha[j-1]; | 
| 538 | < | ba[j] = ba[j-1]; | 
| 729 | > | copystruct(hb+j, hb+(j-1)); | 
| 730 |  | } | 
| 731 |  | } | 
| 732 | < | ha[nents] = NULL;               /* all done */ | 
| 542 | < | ba[nents] = 0; | 
| 732 | > | return(nents);                  /* return new list length */ | 
| 733 |  | } | 
| 734 |  |  | 
| 735 |  |  | 
| 736 | + | int | 
| 737 |  | hdfreecache(pct, honly)         /* free up cache space, writing changes */ | 
| 738 |  | int     pct;                            /* maximum percentage to free */ | 
| 739 |  | register HOLO   *honly;                 /* NULL means check all */ | 
| 740 |  | { | 
| 741 | < | HOLO    *hp[FREEBEAMS+1]; | 
| 551 | < | int     bn[FREEBEAMS+1]; | 
| 741 | > | HDBEAMI hb[FREEBEAMS]; | 
| 742 |  | int     freetarget; | 
| 743 | + | int     n; | 
| 744 |  | register int    i; | 
| 745 | + | #ifdef DEBUG | 
| 746 | + | unsigned        membefore; | 
| 747 | + |  | 
| 748 | + | membefore = hdmemuse(0); | 
| 749 | + | #endif | 
| 750 |  | /* compute free target */ | 
| 751 |  | freetarget = (honly != NULL) ? blglob(honly)->nrm : | 
| 752 |  | hdmemuse(0)/sizeof(RAYVAL) ; | 
| 753 |  | freetarget = freetarget*pct/100; | 
| 754 | + | if (freetarget <= 0) | 
| 755 | + | return(0); | 
| 756 |  | /* find least recently used */ | 
| 757 | < | hp[0] = NULL; | 
| 560 | < | bn[0] = 0; | 
| 757 | > | n = 0; | 
| 758 |  | if (honly != NULL) | 
| 759 | < | hdlrulist(hp, bn, FREEBEAMS, honly); | 
| 759 | > | n = hdlrulist(hb, n, FREEBEAMS, honly); | 
| 760 |  | else | 
| 761 |  | for (i = 0; hdlist[i] != NULL; i++) | 
| 762 | < | hdlrulist(hp, bn, FREEBEAMS, hdlist[i]); | 
| 762 | > | n = hdlrulist(hb, n, FREEBEAMS, hdlist[i]); | 
| 763 |  | /* free LRU beams */ | 
| 764 | < | for (i = 0; hp[i] != NULL; i++) { | 
| 765 | < | hdfreebeam(hp[i], bn[i]); | 
| 766 | < | if ((freetarget -= hp[i]->bi[bn[i]].nrd) <= 0) | 
| 764 | > | for (i = 0; i < n; i++) { | 
| 765 | > | hdfreebeam(hb[i].h, hb[i].b); | 
| 766 | > | if ((freetarget -= hb[i].h->bi[hb[i].b].nrd) <= 0) | 
| 767 |  | break; | 
| 768 |  | } | 
| 769 | < | hdsync(honly);          /* synchronize directories as necessary */ | 
| 769 | > | hdsync(honly, 0);       /* synchronize directories as necessary */ | 
| 770 | > | #ifdef DEBUG | 
| 771 | > | sprintf(errmsg, | 
| 772 | > | "%dK before, %dK after hdfreecache (%dK total), %d rays short\n", | 
| 773 | > | membefore>>10, hdmemuse(0)>>10, hdmemuse(1)>>10, freetarget); | 
| 774 | > | wputs(errmsg); | 
| 775 | > | #endif | 
| 776 | > | return(-freetarget);    /* return how far past goal we went */ | 
| 777 |  | } | 
| 778 |  |  | 
| 779 |  |  | 
| 785 |  | if (hp == NULL) {               /* NULL means clean up everything */ | 
| 786 |  | while (hdlist[0] != NULL) | 
| 787 |  | hddone(hdlist[0]); | 
| 788 | + | free((char *)hdfragl); | 
| 789 | + | hdfragl = NULL; nhdfragls = 0; | 
| 790 |  | return; | 
| 791 |  | } | 
| 792 |  | /* flush all data and free memory */ | 
| 793 | < | hdflush(hp); | 
| 793 | > | hdfreebeam(hp, 0); | 
| 794 | > | hdsync(hp, 0); | 
| 795 |  | /* release fragment resources */ | 
| 796 |  | hdrelease(hp->fd); | 
| 797 |  | /* remove hp from active list */ |