97 lines
2.4 KiB
C
97 lines
2.4 KiB
C
/*
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* $QNXLicenseC:
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* Copyright 2007, QNX Software Systems. All Rights Reserved.
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*
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* You must obtain a written license from and pay applicable license fees to QNX
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* Software Systems before you may reproduce, modify or distribute this software,
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* or any work that includes all or part of this software. Free development
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* licenses are available for evaluation and non-commercial purposes. For more
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* information visit http://licensing.qnx.com or email licensing@qnx.com.
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*
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* This file may contain contributions from others. Please review this entire
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* file for other proprietary rights or license notices, as well as the QNX
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* Development Suite License Guide at http://licensing.qnx.com/license-guide/
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* for other information.
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* $
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*/
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#include <stddef.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <share.h>
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#include <sys/iofunc.h>
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#include "iofunc.h"
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int iofunc_ocb_attach(resmgr_context_t *ctp, io_open_t *msg, iofunc_ocb_t *ocb,
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iofunc_attr_t *attr, const resmgr_io_funcs_t *io_funcs) {
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unsigned sflag;
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iofunc_ocb_t *ocb2 = 0;
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register iofunc_funcs_t *funcs = 0;
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if(!ocb) {
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register iofunc_mount_t *mountp;
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register iofunc_ocb_t *(*ocb_calloc)(resmgr_context_t *ctp, iofunc_attr_t *attr);
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if((mountp = attr->mount) && (funcs = mountp->funcs) &&
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funcs->nfuncs >= (offsetof(iofunc_funcs_t, ocb_calloc) / sizeof(void *)) &&
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(ocb_calloc = funcs->ocb_calloc)) {
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ocb = ocb_calloc(ctp, attr);
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} else {
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ocb = iofunc_ocb_calloc(ctp, attr);
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}
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if(!(ocb2 = ocb)) {
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return errno;
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}
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}
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ocb->ioflag = msg->connect.ioflag & (~_IO_FLAG_MASK | msg->connect.access);
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ocb->sflag = msg->connect.sflag;
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ocb->flags = 0;
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ocb->offset = 0;
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ocb->attr = attr;
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if(resmgr_open_bind(ctp, ocb, io_funcs) == -1) {
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int status = errno;
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if(ocb2) {
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register void (*ocb_free)(iofunc_ocb_t *ocb);
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if(funcs && funcs->nfuncs >= (offsetof(iofunc_funcs_t, ocb_free) / sizeof(void *)) &&
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(ocb_free = funcs->ocb_free)) {
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ocb_free(ocb);
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} else {
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iofunc_ocb_free(ocb);
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}
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}
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return status;
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}
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if(ocb->ioflag & _IO_FLAG_WR) {
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attr->wcount++;
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}
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if(ocb->ioflag & _IO_FLAG_RD) {
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attr->rcount++;
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}
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sflag = ocb->sflag & SH_MASK;
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if(sflag == SH_DENYRW || sflag == SH_DENYRD) {
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attr->rlocks++;
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}
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if(sflag == SH_DENYRW || sflag == SH_DENYWR) {
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attr->wlocks++;
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}
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attr->count++;
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return EOK;
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}
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__SRCVERSION("iofunc_ocb_attach.c $Rev: 153052 $");
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