1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <stdlib.h>
30*0Sstevel@tonic-gate #include <strings.h>
31*0Sstevel@tonic-gate #include <umem.h>
32*0Sstevel@tonic-gate #include <poll.h>
33*0Sstevel@tonic-gate #include <errno.h>
34*0Sstevel@tonic-gate
35*0Sstevel@tonic-gate #include <fmd_alloc.h>
36*0Sstevel@tonic-gate #include <fmd_subr.h>
37*0Sstevel@tonic-gate #include <fmd_module.h>
38*0Sstevel@tonic-gate #include <fmd_scheme.h>
39*0Sstevel@tonic-gate #include <fmd.h>
40*0Sstevel@tonic-gate
41*0Sstevel@tonic-gate void *
fmd_alloc(size_t size,int flags)42*0Sstevel@tonic-gate fmd_alloc(size_t size, int flags)
43*0Sstevel@tonic-gate {
44*0Sstevel@tonic-gate void *data = umem_alloc(size, UMEM_DEFAULT);
45*0Sstevel@tonic-gate uint_t try, lim, msecs;
46*0Sstevel@tonic-gate
47*0Sstevel@tonic-gate if (data != NULL || size == 0 || !(flags & FMD_SLEEP))
48*0Sstevel@tonic-gate return (data); /* in common cases just return result */
49*0Sstevel@tonic-gate
50*0Sstevel@tonic-gate lim = fmd.d_alloc_tries;
51*0Sstevel@tonic-gate msecs = fmd.d_alloc_msecs;
52*0Sstevel@tonic-gate
53*0Sstevel@tonic-gate for (try = 0; data == NULL && try < lim; try++) {
54*0Sstevel@tonic-gate (void) poll(NULL, 0, msecs);
55*0Sstevel@tonic-gate msecs *= 10;
56*0Sstevel@tonic-gate data = umem_alloc(size, UMEM_DEFAULT);
57*0Sstevel@tonic-gate }
58*0Sstevel@tonic-gate
59*0Sstevel@tonic-gate if (data == NULL) {
60*0Sstevel@tonic-gate fmd_modhash_tryapply(fmd.d_mod_hash, fmd_module_trygc);
61*0Sstevel@tonic-gate fmd_scheme_hash_trygc(fmd.d_schemes);
62*0Sstevel@tonic-gate data = umem_alloc(size, UMEM_DEFAULT);
63*0Sstevel@tonic-gate }
64*0Sstevel@tonic-gate
65*0Sstevel@tonic-gate if (data == NULL)
66*0Sstevel@tonic-gate fmd_panic("insufficient memory (%u bytes needed)\n", size);
67*0Sstevel@tonic-gate
68*0Sstevel@tonic-gate return (data);
69*0Sstevel@tonic-gate }
70*0Sstevel@tonic-gate
71*0Sstevel@tonic-gate void *
fmd_zalloc(size_t size,int flags)72*0Sstevel@tonic-gate fmd_zalloc(size_t size, int flags)
73*0Sstevel@tonic-gate {
74*0Sstevel@tonic-gate void *data = fmd_alloc(size, flags);
75*0Sstevel@tonic-gate
76*0Sstevel@tonic-gate if (data != NULL)
77*0Sstevel@tonic-gate bzero(data, size);
78*0Sstevel@tonic-gate
79*0Sstevel@tonic-gate return (data);
80*0Sstevel@tonic-gate }
81*0Sstevel@tonic-gate
82*0Sstevel@tonic-gate void
fmd_free(void * data,size_t size)83*0Sstevel@tonic-gate fmd_free(void *data, size_t size)
84*0Sstevel@tonic-gate {
85*0Sstevel@tonic-gate umem_free(data, size);
86*0Sstevel@tonic-gate }
87