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d42e7319 JB |
1 | /* |
2 | * Copyright (C) 2007 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 | #define LOG_TAG "NativeHandle" | |
18 | ||
19 | #include <stdint.h> | |
20 | #include <errno.h> | |
21 | #include <string.h> | |
22 | #include <stdlib.h> | |
23 | #include <unistd.h> | |
24 | ||
25 | #include <android/cutils/native_handle.h> | |
26 | ||
27 | native_handle_t* native_handle_create(int numFds, int numInts) | |
28 | { | |
29 | native_handle_t* h = malloc( | |
30 | sizeof(native_handle_t) + sizeof(int)*(numFds+numInts)); | |
31 | ||
32 | h->version = sizeof(native_handle_t); | |
33 | h->numFds = numFds; | |
34 | h->numInts = numInts; | |
35 | return h; | |
36 | } | |
37 | ||
38 | int native_handle_delete(native_handle_t* h) | |
39 | { | |
40 | if (h) { | |
41 | if (h->version != sizeof(native_handle_t)) | |
42 | return -EINVAL; | |
43 | free(h); | |
44 | } | |
45 | return 0; | |
46 | } | |
47 | ||
48 | int native_handle_close(const native_handle_t* h) | |
49 | { | |
50 | if (h->version != sizeof(native_handle_t)) | |
51 | return -EINVAL; | |
52 | ||
53 | const int numFds = h->numFds; | |
54 | int i; | |
55 | for (i=0 ; i<numFds ; i++) { | |
56 | close(h->data[i]); | |
57 | } | |
58 | return 0; | |
59 | } |