/src/e2fsprogs/lib/ext2fs/inline.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * inline.c --- Includes the inlined functions defined in the header |
3 | | * files as standalone functions, in case the application program |
4 | | * is compiled with inlining turned off. |
5 | | * |
6 | | * Copyright (C) 1993, 1994 Theodore Ts'o. |
7 | | * |
8 | | * %Begin-Header% |
9 | | * This file may be redistributed under the terms of the GNU Library |
10 | | * General Public License, version 2. |
11 | | * %End-Header% |
12 | | */ |
13 | | |
14 | | #ifndef _XOPEN_SOURCE |
15 | | #define _XOPEN_SOURCE 600 /* for posix_memalign() */ |
16 | | #endif |
17 | | |
18 | | #include "config.h" |
19 | | #include <stdio.h> |
20 | | #include <string.h> |
21 | | #if HAVE_UNISTD_H |
22 | | #include <unistd.h> |
23 | | #endif |
24 | | #include <fcntl.h> |
25 | | #include <time.h> |
26 | | #if HAVE_SYS_STAT_H |
27 | | #include <sys/stat.h> |
28 | | #endif |
29 | | #if HAVE_SYS_TYPES_H |
30 | | #include <sys/types.h> |
31 | | #endif |
32 | | #if HAVE_MALLOC_H |
33 | | #include <malloc.h> |
34 | | #endif |
35 | | |
36 | | #include "ext2_fs.h" |
37 | | #define INCLUDE_INLINE_FUNCS |
38 | | #include "ext2fs.h" |
39 | | |
40 | | /* |
41 | | * We used to define this as an inline, but since we are now using |
42 | | * autoconf-defined #ifdef's, we need to export this as a |
43 | | * library-provided function exclusively. |
44 | | */ |
45 | | errcode_t ext2fs_get_memalign(unsigned long size, |
46 | | unsigned long align, void *ptr) |
47 | 0 | { |
48 | 0 | errcode_t retval = 0; |
49 | 0 | void **p = ptr; |
50 | |
|
51 | 0 | if (align < 8) |
52 | 0 | align = 8; |
53 | 0 | #ifdef HAVE_POSIX_MEMALIGN |
54 | 0 | retval = posix_memalign(p, align, size); |
55 | 0 | if (retval == ENOMEM) |
56 | 0 | return EXT2_ET_NO_MEMORY; |
57 | | #else /* !HAVE_POSIX_MEMALIGN */ |
58 | | #ifdef HAVE_MEMALIGN |
59 | | *p = memalign(align, size); |
60 | | if (*p == NULL) { |
61 | | if (errno) |
62 | | return errno; |
63 | | else |
64 | | return EXT2_ET_NO_MEMORY; |
65 | | } |
66 | | #else /* !HAVE_MEMALIGN */ |
67 | | #ifdef HAVE_VALLOC |
68 | | if (align > sizeof(long long)) |
69 | | *p = valloc(size); |
70 | | else |
71 | | #endif |
72 | | *p = malloc(size); |
73 | | if ((uintptr_t) *p & (align - 1)) { |
74 | | free(*p); |
75 | | *p = 0; |
76 | | } |
77 | | if (*p == 0) |
78 | | return EXT2_ET_NO_MEMORY; |
79 | | #endif /* HAVE_MEMALIGN */ |
80 | | #endif /* HAVE_POSIX_MEMALIGN */ |
81 | 0 | return retval; |
82 | 0 | } |
83 | | |
84 | | #ifdef DEBUG |
85 | | static int isaligned(void *ptr, unsigned long align) |
86 | | { |
87 | | return (((unsigned long) ptr & (align - 1)) == 0); |
88 | | } |
89 | | |
90 | | static errcode_t test_memalign(unsigned long align) |
91 | | { |
92 | | void *ptr = 0; |
93 | | errcode_t retval; |
94 | | |
95 | | retval = ext2fs_get_memalign(32, align, &ptr); |
96 | | if (!retval && !isaligned(ptr, align)) |
97 | | retval = EINVAL; |
98 | | free(ptr); |
99 | | printf("tst_memalign(%lu) is %s\n", align, |
100 | | retval ? error_message(retval) : "OK"); |
101 | | return retval; |
102 | | } |
103 | | |
104 | | int main(int argc, char **argv) |
105 | | { |
106 | | int err = 0; |
107 | | |
108 | | if (test_memalign(4)) |
109 | | err++; |
110 | | if (test_memalign(32)) |
111 | | err++; |
112 | | if (test_memalign(1024)) |
113 | | err++; |
114 | | if (test_memalign(4096)) |
115 | | err++; |
116 | | return err; |
117 | | } |
118 | | #endif |