Annotation of src/sys/fs/tmpfs/tmpfs_fifoops.c, Revision 1.7.4.1
1.7.4.1 ! simonb 1: /* $NetBSD: tmpfs_fifoops.c,v 1.8 2008/06/19 23:57:22 skd Exp $ */
1.1 jmmv 2:
3: /*
4: * Copyright (c) 2005 The NetBSD Foundation, Inc.
5: * All rights reserved.
6: *
7: * This code is derived from software contributed to The NetBSD Foundation
1.3 jmmv 8: * by Julio M. Merino Vidal, developed as part of Google's Summer of Code
9: * 2005 program.
1.1 jmmv 10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30: * POSSIBILITY OF SUCH DAMAGE.
31: */
32:
33: /*
34: * tmpfs vnode interface for named pipes.
35: */
36:
37: #include <sys/cdefs.h>
1.7.4.1 ! simonb 38: __KERNEL_RCSID(0, "$NetBSD: tmpfs_fifoops.c,v 1.8 2008/06/19 23:57:22 skd Exp $");
1.1 jmmv 39:
40: #include <sys/param.h>
41: #include <sys/vnode.h>
42:
43: #include <fs/tmpfs/tmpfs.h>
44: #include <fs/tmpfs/tmpfs_fifoops.h>
45:
46: /* --------------------------------------------------------------------- */
47:
48: /*
1.2 jmmv 49: * vnode operations vector used for fifos stored in a tmpfs file system.
1.1 jmmv 50: */
51: int (**tmpfs_fifoop_p)(void *);
52: const struct vnodeopv_entry_desc tmpfs_fifoop_entries[] = {
53: { &vop_default_desc, vn_default_error },
54: { &vop_lookup_desc, tmpfs_fifo_lookup },
55: { &vop_create_desc, tmpfs_fifo_create },
56: { &vop_mknod_desc, tmpfs_fifo_mknod },
57: { &vop_open_desc, tmpfs_fifo_open },
58: { &vop_close_desc, tmpfs_fifo_close },
59: { &vop_access_desc, tmpfs_fifo_access },
60: { &vop_getattr_desc, tmpfs_fifo_getattr },
61: { &vop_setattr_desc, tmpfs_fifo_setattr },
62: { &vop_read_desc, tmpfs_fifo_read },
63: { &vop_write_desc, tmpfs_fifo_write },
64: { &vop_ioctl_desc, tmpfs_fifo_ioctl },
65: { &vop_fcntl_desc, tmpfs_fifo_fcntl },
66: { &vop_poll_desc, tmpfs_fifo_poll },
67: { &vop_kqfilter_desc, tmpfs_fifo_kqfilter },
68: { &vop_revoke_desc, tmpfs_fifo_revoke },
69: { &vop_mmap_desc, tmpfs_fifo_mmap },
70: { &vop_fsync_desc, tmpfs_fifo_fsync },
71: { &vop_seek_desc, tmpfs_fifo_seek },
72: { &vop_remove_desc, tmpfs_fifo_remove },
73: { &vop_link_desc, tmpfs_fifo_link },
74: { &vop_rename_desc, tmpfs_fifo_rename },
75: { &vop_mkdir_desc, tmpfs_fifo_mkdir },
76: { &vop_rmdir_desc, tmpfs_fifo_rmdir },
77: { &vop_symlink_desc, tmpfs_fifo_symlink },
78: { &vop_readdir_desc, tmpfs_fifo_readdir },
79: { &vop_readlink_desc, tmpfs_fifo_readlink },
80: { &vop_abortop_desc, tmpfs_fifo_abortop },
81: { &vop_inactive_desc, tmpfs_fifo_inactive },
82: { &vop_reclaim_desc, tmpfs_fifo_reclaim },
83: { &vop_lock_desc, tmpfs_fifo_lock },
84: { &vop_unlock_desc, tmpfs_fifo_unlock },
85: { &vop_bmap_desc, tmpfs_fifo_bmap },
86: { &vop_strategy_desc, tmpfs_fifo_strategy },
87: { &vop_print_desc, tmpfs_fifo_print },
88: { &vop_pathconf_desc, tmpfs_fifo_pathconf },
89: { &vop_islocked_desc, tmpfs_fifo_islocked },
90: { &vop_advlock_desc, tmpfs_fifo_advlock },
91: { &vop_bwrite_desc, tmpfs_fifo_bwrite },
92: { &vop_getpages_desc, tmpfs_fifo_getpages },
93: { &vop_putpages_desc, tmpfs_fifo_putpages },
94: { NULL, NULL }
95: };
96: const struct vnodeopv_desc tmpfs_fifoop_opv_desc =
97: { &tmpfs_fifoop_p, tmpfs_fifoop_entries };
98:
99: /* --------------------------------------------------------------------- */
100:
101: int
102: tmpfs_fifo_close(void *v)
103: {
104: struct vnode *vp = ((struct vop_close_args *)v)->a_vp;
105:
106: int error;
107:
1.7.4.1 ! simonb 108: tmpfs_update(vp, NULL, NULL, NULL, UPDATE_CLOSE);
1.4 yamt 109: error = VOCALL(fifo_vnodeop_p, VOFFSET(vop_close), v);
1.1 jmmv 110:
111: return error;
112: }
113:
114: /* --------------------------------------------------------------------- */
115:
116: int
117: tmpfs_fifo_read(void *v)
118: {
119: struct vnode *vp = ((struct vop_read_args *)v)->a_vp;
120:
121: VP_TO_TMPFS_NODE(vp)->tn_status |= TMPFS_NODE_ACCESSED;
122: return VOCALL(fifo_vnodeop_p, VOFFSET(vop_read), v);
123: }
124:
125: /* --------------------------------------------------------------------- */
126:
127: int
128: tmpfs_fifo_write(void *v)
129: {
130: struct vnode *vp = ((struct vop_write_args *)v)->a_vp;
131:
132: VP_TO_TMPFS_NODE(vp)->tn_status |= TMPFS_NODE_MODIFIED;
133: return VOCALL(fifo_vnodeop_p, VOFFSET(vop_write), v);
134: }
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