static void netty_epoll_native_JNI_OnUnLoad(JNIEnv* env) {
netty_unix_limits_JNI_OnUnLoad(env);
netty_unix_errors_JNI_OnUnLoad(env);
netty_unix_filedescriptor_JNI_OnUnLoad(env);
netty_unix_socket_JNI_OnUnLoad(env);
netty_unix_buffer_JNI_OnUnLoad(env);
netty_epoll_linuxsocket_JNI_OnUnLoad(env);
packetAddrFieldId = NULL;
packetScopeIdFieldId = NULL;
packetPortFieldId = NULL;
packetMemoryAddressFieldId = NULL;
packetCountFieldId = NULL;
}
void JNI_OnUnload(JavaVM* vm, void* reserved) {
JNIEnv* env;
if ((*vm)->GetEnv(vm, (void**) &env, JNI_VERSION_1_6) != JNI_OK) {
// Something is wrong but nothing we can do about this :(
return;
} else {
// delete global references so the GC can collect them
if (nettyPackagePrefixJString != NULL) {
(*env)->ReleaseStringUTFChars(env, nettyPackagePrefixJString, nettyPackagePrefix);
nettyPackagePrefix = NULL;
nettyPackagePrefixJString = NULL;
}
if (nettyClassName != NULL) {
free(nettyClassName);
nettyClassName = NULL;
}
netty_unix_errors_JNI_OnUnLoad(env);
netty_unix_filedescriptor_JNI_OnUnLoad(env);
netty_unix_socket_JNI_OnUnLoad(env);
}
}
static jint netty_epoll_native_JNI_OnLoad(JNIEnv* env, const char* packagePrefix) {
int limitsOnLoadCalled = 0;
int errorsOnLoadCalled = 0;
int filedescriptorOnLoadCalled = 0;
int socketOnLoadCalled = 0;
int bufferOnLoadCalled = 0;
int linuxsocketOnLoadCalled = 0;
// We must register the statically referenced methods first!
if (netty_unix_util_register_natives(env,
packagePrefix,
"io/netty/channel/epoll/NativeStaticallyReferencedJniMethods",
statically_referenced_fixed_method_table,
statically_referenced_fixed_method_table_size) != 0) {
goto error;
}
// Register the methods which are not referenced by static member variables
JNINativeMethod* dynamicMethods = createDynamicMethodsTable(packagePrefix);
if (netty_unix_util_register_natives(env,
packagePrefix,
"io/netty/channel/epoll/Native",
dynamicMethods,
dynamicMethodsTableSize()) != 0) {
freeDynamicMethodsTable(dynamicMethods);
goto error;
}
freeDynamicMethodsTable(dynamicMethods);
dynamicMethods = NULL;
// Load all c modules that we depend upon
if (netty_unix_limits_JNI_OnLoad(env, packagePrefix) == JNI_ERR) {
goto error;
}
limitsOnLoadCalled = 1;
if (netty_unix_errors_JNI_OnLoad(env, packagePrefix) == JNI_ERR) {
goto error;
}
errorsOnLoadCalled = 1;
if (netty_unix_filedescriptor_JNI_OnLoad(env, packagePrefix) == JNI_ERR) {
goto error;
}
filedescriptorOnLoadCalled = 1;
if (netty_unix_socket_JNI_OnLoad(env, packagePrefix) == JNI_ERR) {
goto error;
}
socketOnLoadCalled = 1;
if (netty_unix_buffer_JNI_OnLoad(env, packagePrefix) == JNI_ERR) {
goto error;
}
bufferOnLoadCalled = 1;
if (netty_epoll_linuxsocket_JNI_OnLoad(env, packagePrefix) == JNI_ERR) {
goto error;
}
linuxsocketOnLoadCalled = 1;
// Initialize this module
char* nettyClassName = netty_unix_util_prepend(packagePrefix, "io/netty/channel/epoll/NativeDatagramPacketArray$NativeDatagramPacket");
jclass nativeDatagramPacketCls = (*env)->FindClass(env, nettyClassName);
free(nettyClassName);
nettyClassName = NULL;
if (nativeDatagramPacketCls == NULL) {
// pending exception...
goto error;
}
packetAddrFieldId = (*env)->GetFieldID(env, nativeDatagramPacketCls, "addr", "[B");
if (packetAddrFieldId == NULL) {
netty_unix_errors_throwRuntimeException(env, "failed to get field ID: NativeDatagramPacket.addr");
goto error;
}
packetScopeIdFieldId = (*env)->GetFieldID(env, nativeDatagramPacketCls, "scopeId", "I");
if (packetScopeIdFieldId == NULL) {
netty_unix_errors_throwRuntimeException(env, "failed to get field ID: NativeDatagramPacket.scopeId");
goto error;
}
packetPortFieldId = (*env)->GetFieldID(env, nativeDatagramPacketCls, "port", "I");
if (packetPortFieldId == NULL) {
netty_unix_errors_throwRuntimeException(env, "failed to get field ID: NativeDatagramPacket.port");
goto error;
}
packetMemoryAddressFieldId = (*env)->GetFieldID(env, nativeDatagramPacketCls, "memoryAddress", "J");
if (packetMemoryAddressFieldId == NULL) {
netty_unix_errors_throwRuntimeException(env, "failed to get field ID: NativeDatagramPacket.memoryAddress");
goto error;
}
packetCountFieldId = (*env)->GetFieldID(env, nativeDatagramPacketCls, "count", "I");
if (packetCountFieldId == NULL) {
netty_unix_errors_throwRuntimeException(env, "failed to get field ID: NativeDatagramPacket.count");
goto error;
}
return NETTY_JNI_VERSION;
error:
if (limitsOnLoadCalled == 1) {
netty_unix_limits_JNI_OnUnLoad(env);
}
if (errorsOnLoadCalled == 1) {
netty_unix_errors_JNI_OnUnLoad(env);
}
if (filedescriptorOnLoadCalled == 1) {
netty_unix_filedescriptor_JNI_OnUnLoad(env);
}
if (socketOnLoadCalled == 1) {
netty_unix_socket_JNI_OnUnLoad(env);
}
if (bufferOnLoadCalled == 1) {
netty_unix_buffer_JNI_OnUnLoad(env);
}
if (linuxsocketOnLoadCalled == 1) {
netty_epoll_linuxsocket_JNI_OnUnLoad(env);
}
packetAddrFieldId = NULL;
packetScopeIdFieldId = NULL;
packetPortFieldId = NULL;
packetMemoryAddressFieldId = NULL;
packetCountFieldId = NULL;
return JNI_ERR;
}
