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Side by Side Diff: base/android/jni_array.cc

Issue 835633003: Enable libc++ on Android (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Code review Created 5 years, 10 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "base/android/jni_array.h" 5 #include "base/android/jni_array.h"
6 6
7 #include "base/android/jni_android.h" 7 #include "base/android/jni_android.h"
8 #include "base/android/jni_string.h" 8 #include "base/android/jni_string.h"
9 #include "base/logging.h" 9 #include "base/logging.h"
10 #include "base/stl_util.h"
10 11
11 namespace base { 12 namespace base {
12 namespace android { 13 namespace android {
13 namespace { 14 namespace {
14 15
15 // As |GetArrayLength| makes no guarantees about the returned value (e.g., it 16 // As |GetArrayLength| makes no guarantees about the returned value (e.g., it
16 // may be -1 if |array| is not a valid Java array), provide a safe wrapper 17 // may be -1 if |array| is not a valid Java array), provide a safe wrapper
17 // that always returns a valid, non-negative size. 18 // that always returns a valid, non-negative size.
18 template <typename JavaArrayType> 19 template <typename JavaArrayType>
19 size_t SafeGetArrayLength(JNIEnv* env, JavaArrayType jarray) { 20 size_t SafeGetArrayLength(JNIEnv* env, JavaArrayType jarray) {
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46 47
47 env->SetIntArrayRegion( 48 env->SetIntArrayRegion(
48 int_array, 0, len, reinterpret_cast<const jint*>(ints)); 49 int_array, 0, len, reinterpret_cast<const jint*>(ints));
49 CheckException(env); 50 CheckException(env);
50 51
51 return ScopedJavaLocalRef<jintArray>(env, int_array); 52 return ScopedJavaLocalRef<jintArray>(env, int_array);
52 } 53 }
53 54
54 ScopedJavaLocalRef<jintArray> ToJavaIntArray( 55 ScopedJavaLocalRef<jintArray> ToJavaIntArray(
55 JNIEnv* env, const std::vector<int>& ints) { 56 JNIEnv* env, const std::vector<int>& ints) {
56 return ToJavaIntArray(env, ints.begin(), ints.size()); 57 return ToJavaIntArray(env, vector_as_array(&ints), ints.size());
57 } 58 }
58 59
59 ScopedJavaLocalRef<jlongArray> ToJavaLongArray( 60 ScopedJavaLocalRef<jlongArray> ToJavaLongArray(
60 JNIEnv* env, const int64* longs, size_t len) { 61 JNIEnv* env, const int64* longs, size_t len) {
61 jlongArray long_array = env->NewLongArray(len); 62 jlongArray long_array = env->NewLongArray(len);
62 CheckException(env); 63 CheckException(env);
63 DCHECK(long_array); 64 DCHECK(long_array);
64 65
65 env->SetLongArrayRegion( 66 env->SetLongArrayRegion(
66 long_array, 0, len, reinterpret_cast<const jlong*>(longs)); 67 long_array, 0, len, reinterpret_cast<const jlong*>(longs));
67 CheckException(env); 68 CheckException(env);
68 69
69 return ScopedJavaLocalRef<jlongArray>(env, long_array); 70 return ScopedJavaLocalRef<jlongArray>(env, long_array);
70 } 71 }
71 72
72 // Returns a new Java long array converted from the given int64 array. 73 // Returns a new Java long array converted from the given int64 array.
73 BASE_EXPORT ScopedJavaLocalRef<jlongArray> ToJavaLongArray( 74 BASE_EXPORT ScopedJavaLocalRef<jlongArray> ToJavaLongArray(
74 JNIEnv* env, const std::vector<int64>& longs) { 75 JNIEnv* env, const std::vector<int64>& longs) {
75 return ToJavaLongArray(env, longs.begin(), longs.size()); 76 return ToJavaLongArray(env, vector_as_array(&longs), longs.size());
76 } 77 }
77 78
78 ScopedJavaLocalRef<jobjectArray> ToJavaArrayOfByteArray( 79 ScopedJavaLocalRef<jobjectArray> ToJavaArrayOfByteArray(
79 JNIEnv* env, const std::vector<std::string>& v) { 80 JNIEnv* env, const std::vector<std::string>& v) {
80 ScopedJavaLocalRef<jclass> byte_array_clazz = GetClass(env, "[B"); 81 ScopedJavaLocalRef<jclass> byte_array_clazz = GetClass(env, "[B");
81 jobjectArray joa = env->NewObjectArray(v.size(), 82 jobjectArray joa = env->NewObjectArray(v.size(),
82 byte_array_clazz.obj(), NULL); 83 byte_array_clazz.obj(), NULL);
83 CheckException(env); 84 CheckException(env);
84 85
85 for (size_t i = 0; i < v.size(); ++i) { 86 for (size_t i = 0; i < v.size(); ++i) {
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220 env->GetObjectArrayElement(array, i))); 221 env->GetObjectArrayElement(array, i)));
221 jsize bytes_len = env->GetArrayLength(bytes_array.obj()); 222 jsize bytes_len = env->GetArrayLength(bytes_array.obj());
222 jbyte* bytes = env->GetByteArrayElements(bytes_array.obj(), NULL); 223 jbyte* bytes = env->GetByteArrayElements(bytes_array.obj(), NULL);
223 (*out)[i].assign(reinterpret_cast<const char*>(bytes), bytes_len); 224 (*out)[i].assign(reinterpret_cast<const char*>(bytes), bytes_len);
224 env->ReleaseByteArrayElements(bytes_array.obj(), bytes, JNI_ABORT); 225 env->ReleaseByteArrayElements(bytes_array.obj(), bytes, JNI_ABORT);
225 } 226 }
226 } 227 }
227 228
228 } // namespace android 229 } // namespace android
229 } // namespace base 230 } // namespace base
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