1 7a4ee46d 2003-11-23 devnull #include "stdinc.h"
 2 7a4ee46d 2003-11-23 devnull #include "dat.h"
 3 7a4ee46d 2003-11-23 devnull #include "fns.h"
 4 7a4ee46d 2003-11-23 devnull 
 5 7a4ee46d 2003-11-23 devnull static int	verbose;
 6 7a4ee46d 2003-11-23 devnull 
 7 7a4ee46d 2003-11-23 devnull void
 8 7a4ee46d 2003-11-23 devnull usage(void)
 9 7a4ee46d 2003-11-23 devnull {
10 7a4ee46d 2003-11-23 devnull 	fprint(2, "usage: rdarena [-v] arenapart arena\n");
11 7a4ee46d 2003-11-23 devnull 	threadexitsall(0);
12 7a4ee46d 2003-11-23 devnull }
13 7a4ee46d 2003-11-23 devnull 
14 7a4ee46d 2003-11-23 devnull static void
15 7a4ee46d 2003-11-23 devnull rdarena(Arena *arena)
16 7a4ee46d 2003-11-23 devnull {
17 7a4ee46d 2003-11-23 devnull 	ZBlock *b;
18 7a4ee46d 2003-11-23 devnull 	u64int a, e;
19 7a4ee46d 2003-11-23 devnull 	u32int bs;
20 7a4ee46d 2003-11-23 devnull 
21 7a4ee46d 2003-11-23 devnull 	fprint(2, "copying %s to standard output\n", arena->name);
22 7a4ee46d 2003-11-23 devnull 	printarena(2, arena);
23 7a4ee46d 2003-11-23 devnull 
24 7a4ee46d 2003-11-23 devnull 	bs = MaxIoSize;
25 7a4ee46d 2003-11-23 devnull 	if(bs < arena->blocksize)
26 7a4ee46d 2003-11-23 devnull 		bs = arena->blocksize;
27 7a4ee46d 2003-11-23 devnull 
28 7a4ee46d 2003-11-23 devnull 	b = alloczblock(bs, 0);
29 7a4ee46d 2003-11-23 devnull 	e = arena->base + arena->size + arena->blocksize;
30 7a4ee46d 2003-11-23 devnull 	for(a = arena->base - arena->blocksize; a + arena->blocksize <= e; a += bs){
31 7a4ee46d 2003-11-23 devnull 		if(a + bs > e)
32 7a4ee46d 2003-11-23 devnull 			bs = arena->blocksize;
33 7a4ee46d 2003-11-23 devnull 		if(readpart(arena->part, a, b->data, bs) < 0)
34 7a4ee46d 2003-11-23 devnull 			fprint(2, "can't copy %s, read at %lld failed: %r\n", arena->name, a);	
35 7a4ee46d 2003-11-23 devnull 		if(write(1, b->data, bs) != bs)
36 7a4ee46d 2003-11-23 devnull 			sysfatal("can't copy %s, write at %lld failed: %r", arena->name, a);
37 7a4ee46d 2003-11-23 devnull 	}
38 7a4ee46d 2003-11-23 devnull 
39 7a4ee46d 2003-11-23 devnull 	freezblock(b);
40 7a4ee46d 2003-11-23 devnull }
41 7a4ee46d 2003-11-23 devnull 
42 7a4ee46d 2003-11-23 devnull void
43 7a4ee46d 2003-11-23 devnull threadmain(int argc, char *argv[])
44 7a4ee46d 2003-11-23 devnull {
45 7a4ee46d 2003-11-23 devnull 	ArenaPart *ap;
46 7a4ee46d 2003-11-23 devnull 	Part *part;
47 7a4ee46d 2003-11-23 devnull 	char *file, *aname;
48 7a4ee46d 2003-11-23 devnull 	int i;
49 7a4ee46d 2003-11-23 devnull 
50 7a4ee46d 2003-11-23 devnull 	fmtinstall('V', vtscorefmt);
51 7a4ee46d 2003-11-23 devnull 	statsinit();
52 7a4ee46d 2003-11-23 devnull 
53 7a4ee46d 2003-11-23 devnull 	ARGBEGIN{
54 7a4ee46d 2003-11-23 devnull 	case 'v':
55 7a4ee46d 2003-11-23 devnull 		verbose++;
56 7a4ee46d 2003-11-23 devnull 		break;
57 7a4ee46d 2003-11-23 devnull 	default:
58 7a4ee46d 2003-11-23 devnull 		usage();
59 7a4ee46d 2003-11-23 devnull 		break;
60 7a4ee46d 2003-11-23 devnull 	}ARGEND
61 7a4ee46d 2003-11-23 devnull 
62 7a4ee46d 2003-11-23 devnull 	readonly = 1;
63 7a4ee46d 2003-11-23 devnull 
64 7a4ee46d 2003-11-23 devnull 	if(argc != 2)
65 7a4ee46d 2003-11-23 devnull 		usage();
66 7a4ee46d 2003-11-23 devnull 
67 7a4ee46d 2003-11-23 devnull 	file = argv[0];
68 7a4ee46d 2003-11-23 devnull 	aname = argv[1];
69 7a4ee46d 2003-11-23 devnull 
70 7a4ee46d 2003-11-23 devnull 	part = initpart(file, 0);
71 7a4ee46d 2003-11-23 devnull 	if(part == nil)
72 7a4ee46d 2003-11-23 devnull 		sysfatal("can't open partition %s: %r", file);
73 7a4ee46d 2003-11-23 devnull 
74 7a4ee46d 2003-11-23 devnull 	ap = initarenapart(part);
75 7a4ee46d 2003-11-23 devnull 	if(ap == nil)
76 7a4ee46d 2003-11-23 devnull 		sysfatal("can't initialize arena partition in %s: %r", file);
77 7a4ee46d 2003-11-23 devnull 
78 7a4ee46d 2003-11-23 devnull 	if(verbose)
79 7a4ee46d 2003-11-23 devnull 		printarenapart(2, ap);
80 7a4ee46d 2003-11-23 devnull 
81 7a4ee46d 2003-11-23 devnull 	initdcache(8 * MaxDiskBlock);
82 7a4ee46d 2003-11-23 devnull 
83 7a4ee46d 2003-11-23 devnull 	for(i = 0; i < ap->narenas; i++){
84 7a4ee46d 2003-11-23 devnull 		if(strcmp(ap->arenas[i]->name, aname) == 0){
85 7a4ee46d 2003-11-23 devnull 			rdarena(ap->arenas[i]);
86 7a4ee46d 2003-11-23 devnull 			threadexitsall(0);
87 7a4ee46d 2003-11-23 devnull 		}
88 7a4ee46d 2003-11-23 devnull 	}
89 7a4ee46d 2003-11-23 devnull 
90 7a4ee46d 2003-11-23 devnull 	sysfatal("couldn't find arena %s\n", aname);
91 7a4ee46d 2003-11-23 devnull }