| 22 |
|
#define PCTFREE 20 /* maximum fraction to free (%) */ |
| 23 |
|
#endif |
| 24 |
|
|
| 25 |
+ |
#ifndef BSD |
| 26 |
+ |
#define write writebuf /* safe i/o routines */ |
| 27 |
+ |
#define read readbuf |
| 28 |
+ |
#endif |
| 29 |
+ |
|
| 30 |
|
#define MAXFRAG (128*FRAGBLK) /* maximum fragments per file */ |
| 31 |
|
|
| 32 |
|
#define FRAGBLK 64 /* number of fragments to allocate at a time */ |
| 83 |
|
} |
| 84 |
|
|
| 85 |
|
|
| 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 |
+ |
|
| 101 |
|
HOLO * |
| 102 |
|
hdinit(fd, hproto) /* initialize a holodeck section in a file */ |
| 103 |
|
int fd; /* corresponding file descriptor */ |
| 122 |
|
n = nbeams(hp)*sizeof(BEAMI); |
| 123 |
|
if (read(fd, (char *)(hp->bi+1), n) != n) |
| 124 |
|
error(SYSTEM, "failure loading holodeck directory"); |
| 125 |
+ |
/* check that it's clean */ |
| 126 |
+ |
if (hp->bi[nbeams(hp)].fo < 0) |
| 127 |
+ |
error(USER, "dirty holodeck section"); |
| 128 |
|
} else { /* assume we're creating it */ |
| 129 |
|
if ((hp = hdalloc(hproto)) == NULL) |
| 130 |
|
goto memerr; |
| 398 |
|
} |
| 399 |
|
biglob(hp)->nrd += nrays - hp->bi[i].nrd; |
| 400 |
|
hp->bi[i].nrd = nrays; |
| 401 |
< |
hp->dirty++; /* section directory now out of date */ |
| 401 |
> |
markdirty(hp); /* section directory now out of date */ |
| 402 |
|
return(1); |
| 403 |
|
} |
| 404 |
|
|
