Ian Rogers | df20fe0 | 2011-07-20 20:34:16 -0700 | [diff] [blame] | 1 | // Copyright 2011 Google Inc. All Rights Reserved. |
| 2 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 3 | #include "jni_internal.h" |
Carl Shapiro | 2ed144c | 2011-07-26 16:52:08 -0700 | [diff] [blame^] | 4 | |
| 5 | #include <vector> |
| 6 | #include <utility> |
| 7 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 8 | #include "logging.h" |
Carl Shapiro | 2ed144c | 2011-07-26 16:52:08 -0700 | [diff] [blame^] | 9 | #include "runtime.h" |
| 10 | #include "thread.h" |
Ian Rogers | df20fe0 | 2011-07-20 20:34:16 -0700 | [diff] [blame] | 11 | |
| 12 | namespace art { |
| 13 | |
| 14 | static void JniMonitorEnter(JniEnvironment*, jobject) { |
| 15 | LOG(WARNING) << "Unimplemented: JNI Monitor Enter"; |
| 16 | } |
| 17 | |
| 18 | static void JniMonitorExit(JniEnvironment*, jobject) { |
| 19 | LOG(WARNING) << "Unimplemented: JNI Monitor Exit"; |
| 20 | } |
| 21 | |
| 22 | JniEnvironment::JniEnvironment() { |
| 23 | monitor_enter_ = &JniMonitorEnter; |
| 24 | monitor_exit_ = &JniMonitorExit; |
| 25 | } |
| 26 | |
Carl Shapiro | 2ed144c | 2011-07-26 16:52:08 -0700 | [diff] [blame^] | 27 | extern "C" jint JNI_CreateJavaVM(JavaVM** p_vm, void** p_env, void* vm_args) { |
| 28 | const JavaVMInitArgs* args = static_cast<JavaVMInitArgs*>(vm_args); |
| 29 | if (args->version < JNI_VERSION_1_2) { |
| 30 | return JNI_EVERSION; |
| 31 | } |
| 32 | Runtime::Options options; |
| 33 | for (int i = 0; i < args->nOptions; ++i) { |
| 34 | JavaVMOption* option = &args->options[i]; |
| 35 | options.push_back(std::make_pair(option->optionString, option->extraInfo)); |
| 36 | } |
| 37 | bool ignore_unrecognized = args->ignoreUnrecognized; |
| 38 | scoped_ptr<Runtime> runtime(Runtime::Create(options, ignore_unrecognized)); |
| 39 | if (runtime == NULL) { |
| 40 | return JNI_ERR; |
| 41 | } else { |
| 42 | *p_env = reinterpret_cast<JNIEnv*>(Thread::Current()->GetJniEnv()); |
| 43 | *p_vm = reinterpret_cast<JavaVM*>(runtime.release()); |
| 44 | return JNI_OK; |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | extern "C" jint JNI_GetCreatedJavaVMs(JavaVM** vmBuf, jsize bufLen, |
| 49 | jsize* nVMs) { |
| 50 | Runtime* runtime = Runtime::Current(); |
| 51 | if (runtime == NULL) { |
| 52 | *nVMs = 0; |
| 53 | } else { |
| 54 | *nVMs = 1; |
| 55 | vmBuf[0] = reinterpret_cast<JavaVM*>(runtime); |
| 56 | } |
| 57 | return JNI_OK; |
| 58 | } |
| 59 | |
| 60 | // Historically unsupported. |
| 61 | extern "C" jint JNI_GetDefaultJavaVMInitArgs(void* vm_args) { |
| 62 | return JNI_ERR; |
| 63 | } |
| 64 | |
| 65 | jint JniInvoke::DestroyJavaVM(JavaVM* vm) { |
| 66 | if (vm == NULL) { |
| 67 | return JNI_ERR; |
| 68 | } else { |
| 69 | Runtime* runtime = reinterpret_cast<Runtime*>(vm); |
| 70 | delete runtime; |
| 71 | return JNI_OK; |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | jint JniInvoke::AttachCurrentThread(JavaVM* vm, JNIEnv** p_env, |
| 76 | void* thr_args) { |
| 77 | if (vm == NULL || p_env == NULL) { |
| 78 | return JNI_ERR; |
| 79 | } |
| 80 | Runtime* runtime = reinterpret_cast<Runtime*>(vm); |
| 81 | JniEnvironment** jni_env = reinterpret_cast<JniEnvironment**>(p_env); |
| 82 | const char* name = NULL; |
| 83 | if (thr_args != NULL) { |
| 84 | // TODO: check version |
| 85 | name = static_cast<JavaVMAttachArgs*>(thr_args)->name; |
| 86 | // TODO: thread group |
| 87 | } |
| 88 | bool success = runtime->AttachCurrentThread(name, jni_env); |
| 89 | if (!success) { |
| 90 | return JNI_ERR; |
| 91 | } else { |
| 92 | return JNI_OK; |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | jint JniInvoke::DetachCurrentThread(JavaVM* vm) { |
| 97 | if (vm == NULL) { |
| 98 | return JNI_ERR; |
| 99 | } else { |
| 100 | Runtime* runtime = reinterpret_cast<Runtime*>(vm); |
| 101 | runtime->DetachCurrentThread(); |
| 102 | return JNI_OK; |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | jint JniInvoke::GetEnv(JavaVM *vm, void **env, jint version) { |
| 107 | if (version < JNI_VERSION_1_1 || version > JNI_VERSION_1_6) { |
| 108 | return JNI_EVERSION; |
| 109 | } |
| 110 | if (vm == NULL || env == NULL) { |
| 111 | return JNI_ERR; |
| 112 | } |
| 113 | Thread* thread = Thread::Current(); |
| 114 | if (thread == NULL) { |
| 115 | *env = NULL; |
| 116 | return JNI_EDETACHED; |
| 117 | } |
| 118 | *env = thread->GetJniEnv(); |
| 119 | return JNI_OK; |
| 120 | } |
| 121 | |
| 122 | jint JniInvoke::AttachCurrentThreadAsDaemon(JavaVM* vm, JNIEnv** p_env, |
| 123 | void* thr_args) { |
| 124 | if (vm == NULL || p_env == NULL) { |
| 125 | return JNI_ERR; |
| 126 | } |
| 127 | Runtime* runtime = reinterpret_cast<Runtime*>(vm); |
| 128 | JniEnvironment** jni_env = reinterpret_cast<JniEnvironment**>(p_env); |
| 129 | const char* name = NULL; |
| 130 | if (thr_args != NULL) { |
| 131 | // TODO: check version |
| 132 | name = static_cast<JavaVMAttachArgs*>(thr_args)->name; |
| 133 | // TODO: thread group |
| 134 | } |
| 135 | bool success = runtime->AttachCurrentThreadAsDaemon(name, jni_env); |
| 136 | if (!success) { |
| 137 | return JNI_ERR; |
| 138 | } else { |
| 139 | return JNI_OK; |
| 140 | } |
| 141 | } |
| 142 | |
Ian Rogers | df20fe0 | 2011-07-20 20:34:16 -0700 | [diff] [blame] | 143 | } // namespace art |