1 /*
2 * Copyright 2012, The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <portability.h>
18 #include <unistd.h>
19 #include <fcntl.h>
20
21 #include <asm/unistd.h>
22 #include <asm/unistd-portable.h>
23
24 #include <fcntl_portable.h>
25 #include <inotify_portable.h>
26
27 #include <filefd_portable.h>
28
29
30 #define PORTABLE_TAG "inotify_portable"
31 #include <log_portable.h>
32
33 extern int syscall(int, ...);
34
35
36 /*
37 * NOTE: LTP defaults to using O_CLOEXEC for IN_CLOEXEC,
38 * and 02000000 if O_CLOEXEC isn't defined.
39 */
40
41
42 /*
43 * Portable to Native event flags mapper.
44 */
in_flags_pton(int portable_flags)45 static inline int in_flags_pton(int portable_flags)
46 {
47 int native_flags = 0;
48
49 ALOGV("%s(portable_flags:0x%x) {", __func__, portable_flags);
50
51 if (portable_flags & IN_NONBLOCK_PORTABLE) {
52 native_flags |= IN_NONBLOCK;
53 }
54
55 if (portable_flags & IN_CLOEXEC_PORTABLE) {
56 native_flags |= IN_CLOEXEC;
57 }
58
59 ALOGV("%s: return(native_flags:%d); }", __func__, native_flags);
60 return native_flags;
61 }
62
63
WRAP(inotify_init1)64 int WRAP(inotify_init1)(int portable_flags) {
65 int rv;
66 int native_flags;
67
68 ALOGV(" ");
69 ALOGV("%s(portable_flags:%d) {", __func__,
70 portable_flags);
71
72 native_flags = in_flags_pton(portable_flags);
73
74 rv = syscall(__NR_inotify_init1, native_flags);
75 if (rv >= 0) {
76 if (native_flags & IN_CLOEXEC) {
77 filefd_CLOEXEC_enabled(rv);
78 }
79 filefd_opened(rv, INOTIFY_FD_TYPE);
80 }
81
82 ALOGV("%s: return(rv:%d); }", __func__, rv);
83 return rv;
84 }
85
86