1 2277c5d7 2004-03-21 devnull #include <u.h>
 2 2277c5d7 2004-03-21 devnull #include <libc.h>
 3 2277c5d7 2004-03-21 devnull #include <fcall.h>
 4 2277c5d7 2004-03-21 devnull #include <thread.h>
 5 2277c5d7 2004-03-21 devnull #include "9p.h"
 6 2277c5d7 2004-03-21 devnull 
 7 2277c5d7 2004-03-21 devnull static void
 8 2277c5d7 2004-03-21 devnull incfidref(void *v)
 9 2277c5d7 2004-03-21 devnull {
10 2277c5d7 2004-03-21 devnull 	Fid *f;
11 2277c5d7 2004-03-21 devnull 
12 2277c5d7 2004-03-21 devnull 	f = v;
13 2277c5d7 2004-03-21 devnull 	if(f)
14 2277c5d7 2004-03-21 devnull 		incref(&f->ref);
15 2277c5d7 2004-03-21 devnull }
16 2277c5d7 2004-03-21 devnull 
17 2277c5d7 2004-03-21 devnull Fidpool*
18 2277c5d7 2004-03-21 devnull allocfidpool(void (*destroy)(Fid*))
19 2277c5d7 2004-03-21 devnull {
20 2277c5d7 2004-03-21 devnull 	Fidpool *f;
21 2277c5d7 2004-03-21 devnull 
22 2277c5d7 2004-03-21 devnull 	f = emalloc9p(sizeof *f);
23 2277c5d7 2004-03-21 devnull 	f->map = allocmap(incfidref);
24 2277c5d7 2004-03-21 devnull 	f->destroy = destroy;
25 2277c5d7 2004-03-21 devnull 	return f;
26 2277c5d7 2004-03-21 devnull }
27 2277c5d7 2004-03-21 devnull 
28 2277c5d7 2004-03-21 devnull void
29 2277c5d7 2004-03-21 devnull freefidpool(Fidpool *p)
30 2277c5d7 2004-03-21 devnull {
31 2277c5d7 2004-03-21 devnull 	freemap(p->map, (void(*)(void*))p->destroy);
32 2277c5d7 2004-03-21 devnull 	free(p);
33 2277c5d7 2004-03-21 devnull }
34 2277c5d7 2004-03-21 devnull 
35 2277c5d7 2004-03-21 devnull Fid*
36 2277c5d7 2004-03-21 devnull allocfid(Fidpool *pool, ulong fid)
37 2277c5d7 2004-03-21 devnull {
38 2277c5d7 2004-03-21 devnull 	Fid *f;
39 2277c5d7 2004-03-21 devnull 
40 2277c5d7 2004-03-21 devnull 	f = emalloc9p(sizeof *f);
41 2277c5d7 2004-03-21 devnull 	f->fid = fid;
42 2277c5d7 2004-03-21 devnull 	f->omode = -1;
43 2277c5d7 2004-03-21 devnull 	f->pool = pool;
44 2277c5d7 2004-03-21 devnull 
45 2277c5d7 2004-03-21 devnull 	incfidref(f);
46 2277c5d7 2004-03-21 devnull 	incfidref(f);
47 2277c5d7 2004-03-21 devnull 	if(caninsertkey(pool->map, fid, f) == 0){
48 2277c5d7 2004-03-21 devnull 		closefid(f);
49 5c8a0421 2004-12-26 devnull 		closefid(f);
50 2277c5d7 2004-03-21 devnull 		return nil;
51 2277c5d7 2004-03-21 devnull 	}
52 2277c5d7 2004-03-21 devnull 
53 2277c5d7 2004-03-21 devnull 	return f;
54 2277c5d7 2004-03-21 devnull }
55 2277c5d7 2004-03-21 devnull 
56 2277c5d7 2004-03-21 devnull Fid*
57 2277c5d7 2004-03-21 devnull lookupfid(Fidpool *pool, ulong fid)
58 2277c5d7 2004-03-21 devnull {
59 2277c5d7 2004-03-21 devnull 	return lookupkey(pool->map, fid);
60 2277c5d7 2004-03-21 devnull }
61 2277c5d7 2004-03-21 devnull 
62 2277c5d7 2004-03-21 devnull void
63 2277c5d7 2004-03-21 devnull closefid(Fid *f)
64 2277c5d7 2004-03-21 devnull {
65 2277c5d7 2004-03-21 devnull 	if(decref(&f->ref) == 0) {
66 2277c5d7 2004-03-21 devnull 		if(f->rdir)
67 2277c5d7 2004-03-21 devnull 			closedirfile(f->rdir);
68 2277c5d7 2004-03-21 devnull 		if(f->pool->destroy)
69 2277c5d7 2004-03-21 devnull 			f->pool->destroy(f);
70 2277c5d7 2004-03-21 devnull 		if(f->file)
71 2277c5d7 2004-03-21 devnull 			closefile(f->file);
72 2277c5d7 2004-03-21 devnull 		free(f->uid);
73 2277c5d7 2004-03-21 devnull 		free(f);
74 2277c5d7 2004-03-21 devnull 	}
75 2277c5d7 2004-03-21 devnull }
76 2277c5d7 2004-03-21 devnull 
77 2277c5d7 2004-03-21 devnull Fid*
78 2277c5d7 2004-03-21 devnull removefid(Fidpool *pool, ulong fid)
79 2277c5d7 2004-03-21 devnull {
80 2277c5d7 2004-03-21 devnull 	return deletekey(pool->map, fid);
81 2277c5d7 2004-03-21 devnull }