121 lines
3.3 KiB
C
121 lines
3.3 KiB
C
/* $NetBSD: puffs_priv.h,v 1.4 2007/01/15 00:39:02 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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/* 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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