37dd7942fc
only take the bare essentials, which currently means removing "maxreqlen" from the argument list (all current callers I'm aware of set it as 0 anyway). Introduce puffs_init(), which provides a context for setting various parameters and puffs_domount(), which can be used to mount the file system. Keep puffs_mount() as a shortcut for the above two for simple file systems. Bump development ABI version to 13. After all, it's Friday the 13th. Watch out! Bad things can happen on Friday the 13th. --No carrier--
148 lines
3.8 KiB
C
148 lines
3.8 KiB
C
/* $NetBSD: puffs_priv.h,v 1.6 2007/04/13 13:35:46 pooka Exp $ */
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/*
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* Copyright (c) 2006 Antti Kantee. All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the company nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _PUFFS_PRIVATE_H_
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#define _PUFFS_PRIVATE_H_
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#include <sys/types.h>
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#include <fs/puffs/puffs_msgif.h>
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#include <puffs.h>
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#include <ucontext.h>
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#define PU_CMAP(pu, c) (pu->pu_cmap ? pu->pu_cmap(c) : (struct puffs_node *)c)
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/*
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* usermount: describes one file system instance
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*/
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struct puffs_usermount {
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struct puffs_ops pu_ops;
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struct puffs_kargs pu_kargs;
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uint32_t pu_flags;
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size_t pu_cc_stacksize;
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int pu_state;
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struct puffs_node *pu_pn_root;
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LIST_HEAD(, puffs_node) pu_pnodelst;
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struct puffs_node *(*pu_cmap)(void *);
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pu_pathbuild_fn pu_pathbuild;
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pu_pathtransform_fn pu_pathtransform;
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pu_pathcmp_fn pu_pathcmp;
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pu_pathfree_fn pu_pathfree;
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pu_namemod_fn pu_namemod;
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void *pu_privdata;
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};
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/* call context */
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struct puffs_cc {
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struct puffs_usermount *pcc_pu;
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struct puffs_req *pcc_preq;
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ucontext_t pcc_uc; /* "continue" */
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ucontext_t pcc_uc_ret; /* "yield" */
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void *pcc_stack;
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int pcc_flags;
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/* these are for threading information to the implementation */
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void *pcc_priv;
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int pcc_rv;
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TAILQ_ENTRY(puffs_cc) entries;
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};
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#define PCC_ONCE 0x01
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#define PCC_REALCC 0x02
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#define PCC_FREEPRIV 0x04
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#define PCC_PREQ_NOCOPY 0x08
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#define PCC_DONE 0x10
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#define PCC_CALL_NONE 0x10000
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#define PCC_CALL_IN 0x20000
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#define PCC_CALL_OUT 0x40000
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#define PCC_CALL_MASK 0x70000
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#define pcc_callstat(a) (a->pcc_flags & PCC_CALL_MASK)
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#define pcc_callset(a, b) (a->pcc_flags = (a->pcc_flags & ~PCC_CALL_MASK) | b)
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#define pcc_init_local(ap) \
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do { \
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memset(ap, 0, sizeof(*ap)); \
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(ap)->pcc_flags = PCC_ONCE; \
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} while (/*CONSTCOND*/0)
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/*
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* Reqs
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*/
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struct puffs_getreq {
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struct puffs_usermount *pgr_pu;
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struct puffs_reqh_get pgr_phg;
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struct puffs_reqh_get pgr_phg_orig;
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struct puffs_req *pgr_nextpreq;
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size_t pgr_advance;
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/* diagnostics */
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int pgr_nppr;
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};
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struct puffs_putreq {
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struct puffs_usermount *ppr_pu;
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struct puffs_reqh_put ppr_php;
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/* to adjust next request info */
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void **ppr_buf;
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size_t *ppr_buflen;
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uint64_t *ppr_id;
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/* for delayed action freeing of preq's */
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TAILQ_HEAD(, puffs_cc) ppr_pccq;
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/* diagnostics */
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struct puffs_getreq *ppr_pgr;
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};
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__BEGIN_DECLS
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void puffs_calldispatcher(struct puffs_cc *);
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__END_DECLS
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#endif /* _PUFFS_PRIVATE_H_ */
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