Annotation of /trunk/mkinitrd-magellan/klibc/usr/dash/memalloc.h
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Sat Sep 1 22:45:15 2007 UTC (16 years, 8 months ago) by niro
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Sat Sep 1 22:45:15 2007 UTC (16 years, 8 months ago) by niro
File MIME type: text/plain
File size: 3322 byte(s)
-import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
1 | niro | 532 | /*- |
2 | * Copyright (c) 1991, 1993 | ||
3 | * The Regents of the University of California. All rights reserved. | ||
4 | * Copyright (c) 1997-2005 | ||
5 | * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. | ||
6 | * | ||
7 | * This code is derived from software contributed to Berkeley by | ||
8 | * Kenneth Almquist. | ||
9 | * | ||
10 | * Redistribution and use in source and binary forms, with or without | ||
11 | * modification, are permitted provided that the following conditions | ||
12 | * are met: | ||
13 | * 1. Redistributions of source code must retain the above copyright | ||
14 | * notice, this list of conditions and the following disclaimer. | ||
15 | * 2. Redistributions in binary form must reproduce the above copyright | ||
16 | * notice, this list of conditions and the following disclaimer in the | ||
17 | * documentation and/or other materials provided with the distribution. | ||
18 | * 3. Neither the name of the University nor the names of its contributors | ||
19 | * may be used to endorse or promote products derived from this software | ||
20 | * without specific prior written permission. | ||
21 | * | ||
22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | ||
23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | ||
26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
32 | * SUCH DAMAGE. | ||
33 | * | ||
34 | * @(#)memalloc.h 8.2 (Berkeley) 5/4/95 | ||
35 | */ | ||
36 | |||
37 | #include <stddef.h> | ||
38 | |||
39 | struct stackmark { | ||
40 | struct stack_block *stackp; | ||
41 | char *stacknxt; | ||
42 | size_t stacknleft; | ||
43 | struct stackmark *marknext; | ||
44 | }; | ||
45 | |||
46 | |||
47 | extern char *stacknxt; | ||
48 | extern size_t stacknleft; | ||
49 | extern char *sstrend; | ||
50 | extern int herefd; | ||
51 | |||
52 | pointer ckmalloc(size_t); | ||
53 | pointer ckrealloc(pointer, size_t); | ||
54 | char *savestr(const char *); | ||
55 | pointer stalloc(size_t); | ||
56 | void stunalloc(pointer); | ||
57 | void setstackmark(struct stackmark *); | ||
58 | void popstackmark(struct stackmark *); | ||
59 | void growstackblock(void); | ||
60 | void grabstackblock(size_t); | ||
61 | void *growstackstr(void); | ||
62 | char *makestrspace(size_t, char *); | ||
63 | char *stnputs(const char *, size_t, char *); | ||
64 | char *stputs(const char *, char *); | ||
65 | |||
66 | |||
67 | static inline char *_STPUTC(char c, char *p) { | ||
68 | if (p == sstrend) | ||
69 | p = growstackstr(); | ||
70 | *p++ = c; | ||
71 | return p; | ||
72 | } | ||
73 | |||
74 | #define stackblock() ((void *)stacknxt) | ||
75 | #define stackblocksize() stacknleft | ||
76 | #define STARTSTACKSTR(p) ((p) = stackblock()) | ||
77 | #define STPUTC(c, p) ((p) = _STPUTC((c), (p))) | ||
78 | #define CHECKSTRSPACE(n, p) \ | ||
79 | ({ \ | ||
80 | char *q = (p); \ | ||
81 | size_t l = (n); \ | ||
82 | size_t m = sstrend - q; \ | ||
83 | if (l > m) \ | ||
84 | (p) = makestrspace(l, q); \ | ||
85 | 0; \ | ||
86 | }) | ||
87 | #define USTPUTC(c, p) (*p++ = (c)) | ||
88 | #define STACKSTRNUL(p) ((p) == sstrend? (p = growstackstr(), *p = '\0') : (*p = '\0')) | ||
89 | #define STUNPUTC(p) (--p) | ||
90 | #define STTOPC(p) p[-1] | ||
91 | #define STADJUST(amount, p) (p += (amount)) | ||
92 | |||
93 | #define grabstackstr(p) stalloc((char *)(p) - (char *)stackblock()) | ||
94 | #define ungrabstackstr(s, p) stunalloc((s)) | ||
95 | #define stackstrend() ((void *)sstrend) | ||
96 | |||
97 | #define ckfree(p) free((pointer)(p)) |