JNIEXPORT void JNICALL
Java_sun_misc_VM_getThreadStateValues(JNIEnv *env, jclass cls,
jobjectArray values,
jobjectArray names)
{
char errmsg[128];
// check if the number of Thread.State enum constants
// matches the number of states defined in jvm.h
jsize len1 = (*env)->GetArrayLength(env, values);
jsize len2 = (*env)->GetArrayLength(env, names);
if (len1 != JAVA_THREAD_STATE_COUNT || len2 != JAVA_THREAD_STATE_COUNT) {
sprintf(errmsg, "Mismatched VM version: JAVA_THREAD_STATE_COUNT = %d "
" but JDK expects %d / %d",
JAVA_THREAD_STATE_COUNT, len1, len2);
JNU_ThrowInternalError(env, errmsg);
return;
}
if (GetThreadStateValues_fp == NULL) {
GetThreadStateValues_fp = (GET_THREAD_STATE_VALUES_FN)
JDK_FindJvmEntry("JVM_GetThreadStateValues");
if (GetThreadStateValues_fp == NULL) {
JNU_ThrowInternalError(env,
"Mismatched VM version: JVM_GetThreadStateValues not found");
return;
}
GetThreadStateNames_fp = (GET_THREAD_STATE_NAMES_FN)
JDK_FindJvmEntry("JVM_GetThreadStateNames");
if (GetThreadStateNames_fp == NULL) {
JNU_ThrowInternalError(env,
"Mismatched VM version: JVM_GetThreadStateNames not found");
return ;
}
}
get_thread_state_info(env, JAVA_THREAD_STATE_NEW, values, names);
get_thread_state_info(env, JAVA_THREAD_STATE_RUNNABLE, values, names);
get_thread_state_info(env, JAVA_THREAD_STATE_BLOCKED, values, names);
get_thread_state_info(env, JAVA_THREAD_STATE_WAITING, values, names);
get_thread_state_info(env, JAVA_THREAD_STATE_TIMED_WAITING, values, names);
get_thread_state_info(env, JAVA_THREAD_STATE_TERMINATED, values, names);
}
JNIEXPORT void JNICALL
Java_sun_misc_VM_initialize(JNIEnv *env, jclass cls) {
GetJvmVersionInfo_fp func_p;
if (!JDK_InitJvmHandle()) {
JNU_ThrowInternalError(env, "Handle for JVM not found for symbol lookup");
return;
}
func_p = (GetJvmVersionInfo_fp) JDK_FindJvmEntry("JVM_GetVersionInfo");
if (func_p != NULL) {
jvm_version_info info;
memset(&info, 0, sizeof(info));
/* obtain the JVM version info */
(*func_p)(env, &info, sizeof(info));
}
}
JNIEXPORT jobject JNICALL
Java_sun_misc_VMSupport_initAgentProperties(JNIEnv *env, jclass cls, jobject props)
{
char errmsg[128];
if (InitAgentProperties_fp == NULL) {
if (!JDK_InitJvmHandle()) {
JNU_ThrowInternalError(env,
"Handle for JVM not found for symbol lookup");
}
InitAgentProperties_fp = (INIT_AGENT_PROPERTIES_FN)
JDK_FindJvmEntry("JVM_InitAgentProperties");
if (InitAgentProperties_fp == NULL) {
JNU_ThrowInternalError(env,
"Mismatched VM version: JVM_InitAgentProperties not found");
return NULL;
}
}
return (*InitAgentProperties_fp)(env, props);
}
