Annotation of src/sys/fs/puffs/puffs_sys.h, Revision 1.70.20.1
1.70.20.1! snj 1: /* $NetBSD: puffs_sys.h,v 1.70 2008/01/28 21:06:37 pooka Exp $ */
1.1 pooka 2:
3: /*
4: * Copyright (c) 2005, 2006 Antti Kantee. All Rights Reserved.
5: *
6: * Development of this software was supported by the
7: * Google Summer of Code program and the Ulla Tuominen Foundation.
8: * The Google SoC project was mentored by Bill Studenmund.
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
20: * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22: * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
25: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29: * SUCH DAMAGE.
30: */
31:
32: #ifndef _PUFFS_SYS_H_
33: #define _PUFFS_SYS_H_
34:
35: #include <sys/param.h>
36: #include <sys/select.h>
37: #include <sys/kauth.h>
1.28 pooka 38: #include <sys/mutex.h>
1.1 pooka 39: #include <sys/queue.h>
1.4 pooka 40: #include <sys/pool.h>
1.1 pooka 41:
42: #include <fs/puffs/puffs_msgif.h>
43:
1.6 pooka 44: #include <miscfs/genfs/genfs_node.h>
45:
1.2 pooka 46: extern int (**puffs_vnodeop_p)(void *);
47: extern int (**puffs_specop_p)(void *);
1.3 pooka 48: extern int (**puffs_fifoop_p)(void *);
1.2 pooka 49:
50: extern const struct vnodeopv_desc puffs_vnodeop_opv_desc;
51: extern const struct vnodeopv_desc puffs_specop_opv_desc;
1.3 pooka 52: extern const struct vnodeopv_desc puffs_fifoop_opv_desc;
1.10 pooka 53: extern const struct vnodeopv_desc puffs_msgop_opv_desc;
1.2 pooka 54:
1.4 pooka 55: extern struct pool puffs_pnpool;
56:
1.12 pooka 57: #ifdef DEBUG
1.24 pooka 58: #ifndef PUFFSDEBUG
59: #define PUFFSDEBUG
60: #endif
61: #endif
62:
63: #ifdef PUFFSDEBUG
1.12 pooka 64: extern int puffsdebug; /* puffs_subr.c */
65: #define DPRINTF(x) if (puffsdebug > 0) printf x
66: #define DPRINTF_VERBOSE(x) if (puffsdebug > 1) printf x
67: #else
1.1 pooka 68: #define DPRINTF(x)
1.10 pooka 69: #define DPRINTF_VERBOSE(x)
1.12 pooka 70: #endif
1.1 pooka 71:
72: #define MPTOPUFFSMP(mp) ((struct puffs_mount *)((mp)->mnt_data))
73: #define PMPTOMP(pmp) (pmp->pmp_mp)
74: #define VPTOPP(vp) ((struct puffs_node *)(vp)->v_data)
75: #define VPTOPNC(vp) (((struct puffs_node *)(vp)->v_data)->pn_cookie)
76: #define VPTOPUFFSMP(vp) ((struct puffs_mount*)((struct puffs_node*)vp->v_data))
77:
1.32 pooka 78: /* we don't pass the kernel overlay to userspace */
79: #define PUFFS_TOFHSIZE(s) ((s)==0 ? (s) : (s)+4)
80: #define PUFFS_FROMFHSIZE(s) ((s)==0 ? (s) : (s)-4)
81:
1.34 pooka 82: #define ALLOPS(pmp) (pmp->pmp_flags & PUFFS_KFLAG_ALLOPS)
1.10 pooka 83: #define EXISTSOP(pmp, op) \
1.34 pooka 84: (ALLOPS(pmp) || ((pmp)->pmp_vnopmask[PUFFS_VN_##op]))
1.10 pooka 85:
1.42 pooka 86: #define PUFFS_USE_NAMECACHE(pmp) \
87: (((pmp)->pmp_flags & PUFFS_KFLAG_NOCACHE_NAME) == 0)
88: #define PUFFS_USE_PAGECACHE(pmp) \
89: (((pmp)->pmp_flags & PUFFS_KFLAG_NOCACHE_PAGE) == 0)
1.45 pooka 90: #define PUFFS_USE_FULLPNBUF(pmp) \
91: ((pmp)->pmp_flags & PUFFS_KFLAG_LOOKUP_FULLPNBUF)
1.16 pooka 92:
1.27 pooka 93: #define PUFFS_WCACHEINFO(pmp) 0
94:
1.50 pooka 95: struct puffs_newcookie {
1.70 pooka 96: puffs_cookie_t pnc_cookie;
1.50 pooka 97:
98: LIST_ENTRY(puffs_newcookie) pnc_entries;
99: };
100:
1.70.20.1! snj 101: enum puffs_sopreqtype {
! 102: PUFFS_SOPREQ_EXIT,
! 103: PUFFS_SOPREQ_FLUSH,
! 104: };
! 105:
! 106: struct puffs_sopreq {
! 107: union {
! 108: struct puffs_req preq;
! 109: struct puffs_flush pf;
! 110: } psopr_u;
! 111:
! 112: enum puffs_sopreqtype psopr_sopreq;
! 113: TAILQ_ENTRY(puffs_sopreq) psopr_entries;
! 114: };
! 115: #define psopr_preq psopr_u.preq
! 116: #define psopr_pf psopr_u.pf
! 117:
1.59 pooka 118: TAILQ_HEAD(puffs_wq, puffs_msgpark);
1.20 pooka 119: LIST_HEAD(puffs_node_hashlist, puffs_node);
1.1 pooka 120: struct puffs_mount {
1.28 pooka 121: kmutex_t pmp_lock;
1.1 pooka 122:
1.31 pooka 123: struct puffs_kargs pmp_args;
1.10 pooka 124: #define pmp_flags pmp_args.pa_flags
125: #define pmp_vnopmask pmp_args.pa_vnopmask
1.1 pooka 126:
1.59 pooka 127: struct puffs_wq pmp_msg_touser;
128: int pmp_msg_touser_count;
129: kcondvar_t pmp_msg_waiter_cv;
130: size_t pmp_msg_maxsize;
1.1 pooka 131:
1.59 pooka 132: struct puffs_wq pmp_msg_replywait;
1.1 pooka 133:
1.20 pooka 134: struct puffs_node_hashlist *pmp_pnodehash;
1.32 pooka 135: int pmp_npnodehash;
1.1 pooka 136:
1.50 pooka 137: LIST_HEAD(, puffs_newcookie) pmp_newcookie;
138:
1.1 pooka 139: struct mount *pmp_mp;
1.35 pooka 140:
1.1 pooka 141: struct vnode *pmp_root;
1.70 pooka 142: puffs_cookie_t pmp_root_cookie;
1.35 pooka 143: enum vtype pmp_root_vtype;
144: vsize_t pmp_root_vsize;
145: dev_t pmp_root_rdev;
146:
1.60 pooka 147: struct putter_instance *pmp_pi;
1.1 pooka 148:
1.33 pooka 149: unsigned int pmp_refcount;
150: kcondvar_t pmp_refcount_cv;
1.28 pooka 151:
1.33 pooka 152: kcondvar_t pmp_unmounting_cv;
1.14 pooka 153: uint8_t pmp_unmounting;
1.33 pooka 154:
155: uint8_t pmp_status;
1.22 pooka 156: uint8_t pmp_suspend;
1.28 pooka 157:
1.59 pooka 158: uint8_t *pmp_curput;
159: size_t pmp_curres;
160: void *pmp_curopaq;
161:
162: uint64_t pmp_nextmsgid;
1.70.20.1! snj 163:
! 164: kmutex_t pmp_sopmtx;
! 165: kcondvar_t pmp_sopcv;
! 166: int pmp_sopthrcount;
! 167: TAILQ_HEAD(, puffs_sopreq) pmp_sopreqs;
1.1 pooka 168: };
1.8 pooka 169:
1.1 pooka 170: #define PUFFSTAT_BEFOREINIT 0
171: #define PUFFSTAT_MOUNTING 1
172: #define PUFFSTAT_RUNNING 2
1.14 pooka 173: #define PUFFSTAT_DYING 3 /* Do you want your possessions identified? */
1.1 pooka 174:
1.27 pooka 175:
1.37 pooka 176: #define PNODE_NOREFS 0x01 /* no backend reference */
1.38 pooka 177: #define PNODE_SUSPEND 0x04 /* issue all operations as FAF */
178: #define PNODE_DOINACT 0x08 /* if inactive-on-demand, call inactive */
1.27 pooka 179:
180: #define PNODE_METACACHE_ATIME 0x10 /* cache atime metadata */
181: #define PNODE_METACACHE_CTIME 0x20 /* cache atime metadata */
182: #define PNODE_METACACHE_MTIME 0x40 /* cache atime metadata */
183: #define PNODE_METACACHE_SIZE 0x80 /* cache atime metadata */
184: #define PNODE_METACACHE_MASK 0xf0
185:
1.1 pooka 186: struct puffs_node {
1.6 pooka 187: struct genfs_node pn_gnode; /* genfs glue */
188:
1.36 pooka 189: kmutex_t pn_mtx;
190: int pn_refcount;
191:
1.70 pooka 192: puffs_cookie_t pn_cookie; /* userspace pnode cookie */
1.1 pooka 193: struct vnode *pn_vp; /* backpointer to vnode */
194: uint32_t pn_stat; /* node status */
195:
1.36 pooka 196: struct selinfo pn_sel; /* for selecting on the node */
197: short pn_revents; /* available events */
198:
1.27 pooka 199: /* metacache */
200: struct timespec pn_mc_atime;
201: struct timespec pn_mc_ctime;
202: struct timespec pn_mc_mtime;
203: u_quad_t pn_mc_size;
204:
1.47 pooka 205: voff_t pn_serversize;
206:
1.20 pooka 207: LIST_ENTRY(puffs_node) pn_hashent;
1.1 pooka 208: };
209:
1.54 pooka 210: typedef void (*parkdone_fn)(struct puffs_mount *, struct puffs_req *, void *);
1.29 pooka 211:
1.59 pooka 212: struct puffs_msgpark;
1.28 pooka 213: void puffs_msgif_init(void);
214: void puffs_msgif_destroy(void);
1.59 pooka 215: int puffs_msgmem_alloc(size_t, struct puffs_msgpark **, void **, int);
216: void puffs_msgmem_release(struct puffs_msgpark *);
1.62 pooka 217:
1.70.20.1! snj 218: void puffs_sop_thread(void *);
! 219:
1.59 pooka 220: void puffs_msg_setfaf(struct puffs_msgpark *);
1.62 pooka 221: void puffs_msg_setdelta(struct puffs_msgpark *, size_t);
1.70 pooka 222: void puffs_msg_setinfo(struct puffs_msgpark *, int, int, puffs_cookie_t);
1.62 pooka 223: void puffs_msg_setcall(struct puffs_msgpark *, parkdone_fn, void *);
224:
225: void puffs_msg_enqueue(struct puffs_mount *, struct puffs_msgpark *);
226: int puffs_msg_wait(struct puffs_mount *, struct puffs_msgpark *);
227: int puffs_msg_wait2(struct puffs_mount *, struct puffs_msgpark *,
228: struct puffs_node *, struct puffs_node *);
1.1 pooka 229:
1.66 pooka 230: void puffs_msg_sendresp(struct puffs_mount *, struct puffs_req *, int);
231:
1.70 pooka 232: int puffs_getvnode(struct mount *, puffs_cookie_t, enum vtype,
233: voff_t, dev_t, struct vnode **);
1.1 pooka 234: int puffs_newnode(struct mount *, struct vnode *, struct vnode **,
1.70 pooka 235: puffs_cookie_t, struct componentname *,
236: enum vtype, dev_t);
1.1 pooka 237: void puffs_putvnode(struct vnode *);
1.36 pooka 238:
239: void puffs_releasenode(struct puffs_node *);
240: void puffs_referencenode(struct puffs_node *);
241:
1.52 pooka 242: #define PUFFS_NOSUCHCOOKIE (-1)
1.70 pooka 243: int puffs_cookie2vnode(struct puffs_mount *, puffs_cookie_t, int, int,
1.50 pooka 244: struct vnode **);
1.43 pooka 245: void puffs_makecn(struct puffs_kcn *, struct puffs_kcred *,
1.67 pooka 246: const struct componentname *, int);
1.43 pooka 247: void puffs_credcvt(struct puffs_kcred *, kauth_cred_t);
1.1 pooka 248:
1.54 pooka 249: void puffs_parkdone_asyncbioread(struct puffs_mount *,
250: struct puffs_req *, void *);
1.63 pooka 251: void puffs_parkdone_asyncbiowrite(struct puffs_mount *,
252: struct puffs_req *, void *);
1.54 pooka 253: void puffs_parkdone_poll(struct puffs_mount *, struct puffs_req *, void *);
1.29 pooka 254:
1.33 pooka 255: void puffs_mp_reference(struct puffs_mount *);
256: void puffs_mp_release(struct puffs_mount *);
257:
1.53 pooka 258: void puffs_gop_size(struct vnode *, off_t, off_t *, int);
259: void puffs_gop_markupdate(struct vnode *, int);
260:
1.70 pooka 261: void puffs_senderr(struct puffs_mount *, int, int, const char *,
262: puffs_cookie_t);
1.62 pooka 263:
1.64 pooka 264: void puffs_updatenode(struct puffs_node *, int, voff_t);
1.6 pooka 265: #define PUFFS_UPDATEATIME 0x01
266: #define PUFFS_UPDATECTIME 0x02
267: #define PUFFS_UPDATEMTIME 0x04
268: #define PUFFS_UPDATESIZE 0x08
269:
1.60 pooka 270: void puffs_userdead(struct puffs_mount *);
1.13 pooka 271:
1.1 pooka 272: extern int (**puffs_vnodeop_p)(void *);
273:
1.62 pooka 274: /* for putter */
1.59 pooka 275: int puffs_msgif_getout(void *, size_t, int, uint8_t **, size_t *, void **);
276: void puffs_msgif_releaseout(void *, void *, int);
1.61 pooka 277: int puffs_msgif_dispatch(void *, struct putter_hdr *);
1.60 pooka 278: size_t puffs_msgif_waitcount(void *);
279: int puffs_msgif_close(void *);
1.59 pooka 280:
1.54 pooka 281: static __inline int
282: checkerr(struct puffs_mount *pmp, int error, const char *str)
283: {
284:
285: if (error < 0 || error > ELAST) {
1.62 pooka 286: puffs_senderr(pmp, PUFFS_ERR_ERROR, error, str, NULL);
1.54 pooka 287: error = EPROTO;
288: }
289:
290: return error;
291: }
292:
1.59 pooka 293: #define PUFFS_MSG_VARS(type, a) \
294: struct puffs_##type##msg_##a *a##_msg; \
295: struct puffs_msgpark *park_##a = NULL
296:
297: #define PUFFS_MSG_ALLOC(type, a) \
298: puffs_msgmem_alloc(sizeof(struct puffs_##type##msg_##a), \
1.69 pooka 299: &park_##a, (void *)& a##_msg, 1)
1.59 pooka 300:
301: #define PUFFS_MSG_RELEASE(a) \
302: do { \
303: if (park_##a) puffs_msgmem_release(park_##a); \
304: } while (/*CONSTCOND*/0)
305:
1.62 pooka 306: #define PUFFS_MSG_ENQUEUEWAIT(pmp, park, var) \
307: do { \
308: puffs_msg_enqueue(pmp, park); \
309: var = puffs_msg_wait(pmp, park); \
310: } while (/*CONSTCOND*/0)
311:
312: #define PUFFS_MSG_ENQUEUEWAIT2(pmp, park, vp1, vp2, var) \
313: do { \
314: puffs_msg_enqueue(pmp, park); \
315: var = puffs_msg_wait2(pmp, park, vp1, vp2); \
316: } while (/*CONSTCOND*/0)
317:
1.1 pooka 318: #endif /* _PUFFS_SYS_H_ */
CVSweb <webmaster@jp.NetBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to puffs_sys.h CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [cvs.NetBSD.org] / src / sys / fs / puffs