1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "incremental_manager-jni"
#include "core_jni_helpers.h"
#include "incfs_ndk.h"
#include "jni.h"
#include "nativehelper/JNIHelp.h"
#include <iterator>
#include <memory>
namespace android {
static jboolean nativeIsEnabled(JNIEnv* env, jobject clazz) {
return IncFs_IsEnabled();
}
static jboolean nativeIsV2Available(JNIEnv* env, jobject clazz) {
return !!(IncFs_Features() & INCFS_FEATURE_V2);
}
static jboolean nativeIsIncrementalPath(JNIEnv* env,
jobject clazz,
jstring javaPath) {
ScopedUtfChars path(env, javaPath);
return (jboolean)IncFs_IsIncFsPath(path.c_str());
}
static jboolean nativeIsIncrementalFd(JNIEnv* env, jobject clazz, jint fd) {
return (jboolean)IncFs_IsIncFsFd(fd);
}
static jbyteArray nativeUnsafeGetFileSignature(JNIEnv* env, jobject clazz, jstring javaPath) {
ScopedUtfChars path(env, javaPath);
char signature[INCFS_MAX_SIGNATURE_SIZE];
size_t size = sizeof(signature);
if (IncFs_UnsafeGetSignatureByPath(path.c_str(), signature, &size) < 0) {
return nullptr;
}
jbyteArray result = env->NewByteArray(size);
if (result != nullptr) {
env->SetByteArrayRegion(result, 0, size, (const jbyte*)signature);
}
return result;
}
static const JNINativeMethod method_table[] =
{{"nativeIsEnabled", "()Z", (void*)nativeIsEnabled},
{"nativeIsV2Available", "()Z", (void*)nativeIsV2Available},
{"nativeIsIncrementalPath", "(Ljava/lang/String;)Z", (void*)nativeIsIncrementalPath},
{"nativeIsIncrementalFd", "(I)Z", (void*)nativeIsIncrementalFd},
{"nativeUnsafeGetFileSignature", "(Ljava/lang/String;)[B",
(void*)nativeUnsafeGetFileSignature}};
int register_android_os_incremental_IncrementalManager(JNIEnv* env) {
return jniRegisterNativeMethods(env, "android/os/incremental/IncrementalManager",
method_table, std::size(method_table));
}
} // namespace android
|
