1 // Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
2 // This source code is licensed under both the GPLv2 (found in the
3 // COPYING file in the root directory) and Apache 2.0 License
4 // (found in the LICENSE.Apache file in the root directory).
5 //
6 // This file implements the "bridge" between Java and C++ and enables
7 // calling c++ ROCKSDB_NAMESPACE::ThreadStatus methods from Java side.
8
9 #include <jni.h>
10
11 #include "portal.h"
12 #include "include/org_rocksdb_ThreadStatus.h"
13 #include "rocksdb/thread_status.h"
14
15 /*
16 * Class: org_rocksdb_ThreadStatus
17 * Method: getThreadTypeName
18 * Signature: (B)Ljava/lang/String;
19 */
Java_org_rocksdb_ThreadStatus_getThreadTypeName(JNIEnv * env,jclass,jbyte jthread_type_value)20 jstring Java_org_rocksdb_ThreadStatus_getThreadTypeName(
21 JNIEnv* env, jclass, jbyte jthread_type_value) {
22 auto name = ROCKSDB_NAMESPACE::ThreadStatus::GetThreadTypeName(
23 ROCKSDB_NAMESPACE::ThreadTypeJni::toCppThreadType(jthread_type_value));
24 return ROCKSDB_NAMESPACE::JniUtil::toJavaString(env, &name, true);
25 }
26
27 /*
28 * Class: org_rocksdb_ThreadStatus
29 * Method: getOperationName
30 * Signature: (B)Ljava/lang/String;
31 */
Java_org_rocksdb_ThreadStatus_getOperationName(JNIEnv * env,jclass,jbyte joperation_type_value)32 jstring Java_org_rocksdb_ThreadStatus_getOperationName(
33 JNIEnv* env, jclass, jbyte joperation_type_value) {
34 auto name = ROCKSDB_NAMESPACE::ThreadStatus::GetOperationName(
35 ROCKSDB_NAMESPACE::OperationTypeJni::toCppOperationType(
36 joperation_type_value));
37 return ROCKSDB_NAMESPACE::JniUtil::toJavaString(env, &name, true);
38 }
39
40 /*
41 * Class: org_rocksdb_ThreadStatus
42 * Method: microsToStringNative
43 * Signature: (J)Ljava/lang/String;
44 */
Java_org_rocksdb_ThreadStatus_microsToStringNative(JNIEnv * env,jclass,jlong jmicros)45 jstring Java_org_rocksdb_ThreadStatus_microsToStringNative(
46 JNIEnv* env, jclass, jlong jmicros) {
47 auto str = ROCKSDB_NAMESPACE::ThreadStatus::MicrosToString(
48 static_cast<uint64_t>(jmicros));
49 return ROCKSDB_NAMESPACE::JniUtil::toJavaString(env, &str, true);
50 }
51
52 /*
53 * Class: org_rocksdb_ThreadStatus
54 * Method: getOperationStageName
55 * Signature: (B)Ljava/lang/String;
56 */
Java_org_rocksdb_ThreadStatus_getOperationStageName(JNIEnv * env,jclass,jbyte joperation_stage_value)57 jstring Java_org_rocksdb_ThreadStatus_getOperationStageName(
58 JNIEnv* env, jclass, jbyte joperation_stage_value) {
59 auto name = ROCKSDB_NAMESPACE::ThreadStatus::GetOperationStageName(
60 ROCKSDB_NAMESPACE::OperationStageJni::toCppOperationStage(
61 joperation_stage_value));
62 return ROCKSDB_NAMESPACE::JniUtil::toJavaString(env, &name, true);
63 }
64
65 /*
66 * Class: org_rocksdb_ThreadStatus
67 * Method: getOperationPropertyName
68 * Signature: (BI)Ljava/lang/String;
69 */
Java_org_rocksdb_ThreadStatus_getOperationPropertyName(JNIEnv * env,jclass,jbyte joperation_type_value,jint jindex)70 jstring Java_org_rocksdb_ThreadStatus_getOperationPropertyName(
71 JNIEnv* env, jclass, jbyte joperation_type_value, jint jindex) {
72 auto name = ROCKSDB_NAMESPACE::ThreadStatus::GetOperationPropertyName(
73 ROCKSDB_NAMESPACE::OperationTypeJni::toCppOperationType(
74 joperation_type_value),
75 static_cast<int>(jindex));
76 return ROCKSDB_NAMESPACE::JniUtil::toJavaString(env, &name, true);
77 }
78
79 /*
80 * Class: org_rocksdb_ThreadStatus
81 * Method: interpretOperationProperties
82 * Signature: (B[J)Ljava/util/Map;
83 */
Java_org_rocksdb_ThreadStatus_interpretOperationProperties(JNIEnv * env,jclass,jbyte joperation_type_value,jlongArray joperation_properties)84 jobject Java_org_rocksdb_ThreadStatus_interpretOperationProperties(
85 JNIEnv* env, jclass, jbyte joperation_type_value,
86 jlongArray joperation_properties) {
87
88 //convert joperation_properties
89 const jsize len = env->GetArrayLength(joperation_properties);
90 const std::unique_ptr<uint64_t[]> op_properties(new uint64_t[len]);
91 jlong* jop = env->GetLongArrayElements(joperation_properties, nullptr);
92 if (jop == nullptr) {
93 // exception thrown: OutOfMemoryError
94 return nullptr;
95 }
96 for (jsize i = 0; i < len; i++) {
97 op_properties[i] = static_cast<uint64_t>(jop[i]);
98 }
99 env->ReleaseLongArrayElements(joperation_properties, jop, JNI_ABORT);
100
101 // call the function
102 auto result = ROCKSDB_NAMESPACE::ThreadStatus::InterpretOperationProperties(
103 ROCKSDB_NAMESPACE::OperationTypeJni::toCppOperationType(
104 joperation_type_value),
105 op_properties.get());
106 jobject jresult = ROCKSDB_NAMESPACE::HashMapJni::fromCppMap(env, &result);
107 if (env->ExceptionCheck()) {
108 // exception occurred
109 return nullptr;
110 }
111
112 return jresult;
113 }
114
115 /*
116 * Class: org_rocksdb_ThreadStatus
117 * Method: getStateName
118 * Signature: (B)Ljava/lang/String;
119 */
Java_org_rocksdb_ThreadStatus_getStateName(JNIEnv * env,jclass,jbyte jstate_type_value)120 jstring Java_org_rocksdb_ThreadStatus_getStateName(
121 JNIEnv* env, jclass, jbyte jstate_type_value) {
122 auto name = ROCKSDB_NAMESPACE::ThreadStatus::GetStateName(
123 ROCKSDB_NAMESPACE::StateTypeJni::toCppStateType(jstate_type_value));
124 return ROCKSDB_NAMESPACE::JniUtil::toJavaString(env, &name, true);
125 }
126