99
100 bool found() const {
101 return _found;
102 }
103 };
104
105 WB_ENTRY(jboolean, WB_IsClassAlive(JNIEnv* env, jobject target, jstring name))
106 Handle h_name = JNIHandles::resolve(name);
107 if (h_name.is_null()) return false;
108 Symbol* sym = java_lang_String::as_symbol(h_name, CHECK_false);
109 TempNewSymbol tsym(sym); // Make sure to decrement reference count on sym on return
110
111 WBIsKlassAliveClosure closure(sym);
112 ClassLoaderDataGraph::classes_do(&closure);
113
114 return closure.found();
115 WB_END
116
117 WB_ENTRY(void, WB_AddToBootstrapClassLoaderSearch(JNIEnv* env, jobject o, jstring segment)) {
118 #if INCLUDE_JVMTI
119 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
120 const char* seg = env->GetStringUTFChars(segment, NULL);
121 JvmtiEnv* jvmti_env = JvmtiEnv::create_a_jvmti(JVMTI_VERSION);
122 jvmtiError err = jvmti_env->AddToBootstrapClassLoaderSearch(seg);
123 assert(err == JVMTI_ERROR_NONE, "must not fail");
124 env->ReleaseStringUTFChars(segment, seg);
125 #endif
126 }
127 WB_END
128
129 WB_ENTRY(void, WB_AddToSystemClassLoaderSearch(JNIEnv* env, jobject o, jstring segment)) {
130 #if INCLUDE_JVMTI
131 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI
132 const char* seg = env->GetStringUTFChars(segment, NULL);
133 JvmtiEnv* jvmti_env = JvmtiEnv::create_a_jvmti(JVMTI_VERSION);
134 jvmtiError err = jvmti_env->AddToSystemClassLoaderSearch(seg);
135 assert(err == JVMTI_ERROR_NONE, "must not fail");
136 env->ReleaseStringUTFChars(segment, seg);
137 #endif
138 }
139 WB_END
140
141
142 WB_ENTRY(jlong, WB_GetCompressedOopsMaxHeapSize(JNIEnv* env, jobject o)) {
143 return (jlong)Arguments::max_heap_for_compressed_oops();
144 }
145 WB_END
146
147 WB_ENTRY(void, WB_PrintHeapSizes(JNIEnv* env, jobject o)) {
148 CollectorPolicy * p = Universe::heap()->collector_policy();
149 gclog_or_tty->print_cr("Minimum heap "SIZE_FORMAT" Initial heap "
150 SIZE_FORMAT" Maximum heap "SIZE_FORMAT" Space alignment "SIZE_FORMAT" Heap alignment "SIZE_FORMAT,
151 p->min_heap_byte_size(), p->initial_heap_byte_size(), p->max_heap_byte_size(),
152 p->space_alignment(), p->heap_alignment());
153 }
154 WB_END
155
156 #ifndef PRODUCT
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99
100 bool found() const {
101 return _found;
102 }
103 };
104
105 WB_ENTRY(jboolean, WB_IsClassAlive(JNIEnv* env, jobject target, jstring name))
106 Handle h_name = JNIHandles::resolve(name);
107 if (h_name.is_null()) return false;
108 Symbol* sym = java_lang_String::as_symbol(h_name, CHECK_false);
109 TempNewSymbol tsym(sym); // Make sure to decrement reference count on sym on return
110
111 WBIsKlassAliveClosure closure(sym);
112 ClassLoaderDataGraph::classes_do(&closure);
113
114 return closure.found();
115 WB_END
116
117 WB_ENTRY(void, WB_AddToBootstrapClassLoaderSearch(JNIEnv* env, jobject o, jstring segment)) {
118 #if INCLUDE_JVMTI
119 const char* seg;
120 {
121 ThreadToNativeFromVM ttnfv(thread);
122 seg = env->GetStringUTFChars(segment, NULL);
123 }
124 JvmtiEnv* jvmti_env = JvmtiEnv::create_a_jvmti(JVMTI_VERSION);
125 jvmtiError err = jvmti_env->AddToBootstrapClassLoaderSearch(seg);
126 assert(err == JVMTI_ERROR_NONE, "must not fail");
127 {
128 ThreadToNativeFromVM ttnfv(thread);
129 env->ReleaseStringUTFChars(segment, seg);
130 }
131 #endif
132 }
133 WB_END
134
135 WB_ENTRY(void, WB_AddToSystemClassLoaderSearch(JNIEnv* env, jobject o, jstring segment)) {
136 #if INCLUDE_JVMTI
137 const char* seg;
138 {
139 ThreadToNativeFromVM ttnfv(thread);
140 seg = env->GetStringUTFChars(segment, NULL);
141 }
142 JvmtiEnv* jvmti_env = JvmtiEnv::create_a_jvmti(JVMTI_VERSION);
143 jvmtiError err = jvmti_env->AddToSystemClassLoaderSearch(seg);
144 assert(err == JVMTI_ERROR_NONE, "must not fail");
145 {
146 ThreadToNativeFromVM ttnfv(thread);
147 env->ReleaseStringUTFChars(segment, seg);
148 }
149 #endif
150 }
151 WB_END
152
153
154 WB_ENTRY(jlong, WB_GetCompressedOopsMaxHeapSize(JNIEnv* env, jobject o)) {
155 return (jlong)Arguments::max_heap_for_compressed_oops();
156 }
157 WB_END
158
159 WB_ENTRY(void, WB_PrintHeapSizes(JNIEnv* env, jobject o)) {
160 CollectorPolicy * p = Universe::heap()->collector_policy();
161 gclog_or_tty->print_cr("Minimum heap "SIZE_FORMAT" Initial heap "
162 SIZE_FORMAT" Maximum heap "SIZE_FORMAT" Space alignment "SIZE_FORMAT" Heap alignment "SIZE_FORMAT,
163 p->min_heap_byte_size(), p->initial_heap_byte_size(), p->max_heap_byte_size(),
164 p->space_alignment(), p->heap_alignment());
165 }
166 WB_END
167
168 #ifndef PRODUCT
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