android_namespace_t* GetOrCreate(JNIEnv* env, jobject class_loader,
bool is_shared,
jstring java_library_path,
jstring java_permitted_path) {
ScopedUtfChars library_path(env, java_library_path);
std::string permitted_path;
if (java_permitted_path != nullptr) {
ScopedUtfChars path(env, java_permitted_path);
permitted_path = path.c_str();
}
if (!initialized_ && !InitPublicNamespace(library_path.c_str())) {
return nullptr;
}
std::lock_guard<std::mutex> guard(mutex_);
auto it = FindNamespaceByClassLoader(env, class_loader);
if (it != namespaces_.end()) {
return it->second;
}
uint64_t namespace_type = ANDROID_NAMESPACE_TYPE_ISOLATED;
if (is_shared) {
namespace_type |= ANDROID_NAMESPACE_TYPE_SHARED;
}
android_namespace_t* ns =
android_create_namespace("classloader-namespace",
nullptr,
library_path.c_str(),
namespace_type,
java_permitted_path != nullptr ?
permitted_path.c_str() :
nullptr);
namespaces_.push_back(std::make_pair(env->NewWeakGlobalRef(class_loader), ns));
return ns;
}
android_namespace_t* Create(JNIEnv* env,
jobject class_loader,
bool is_shared,
jstring java_library_path,
jstring java_permitted_path) {
ScopedUtfChars library_path(env, java_library_path);
std::string permitted_path;
if (java_permitted_path != nullptr) {
ScopedUtfChars path(env, java_permitted_path);
permitted_path = path.c_str();
}
if (!initialized_ && !InitPublicNamespace(library_path.c_str())) {
return nullptr;
}
android_namespace_t* ns = FindNamespaceByClassLoader(env, class_loader);
LOG_ALWAYS_FATAL_IF(ns != nullptr,
"There is already a namespace associated with this classloader");
uint64_t namespace_type = ANDROID_NAMESPACE_TYPE_ISOLATED;
if (is_shared) {
namespace_type |= ANDROID_NAMESPACE_TYPE_SHARED;
}
ns = android_create_namespace("classloader-namespace",
nullptr,
library_path.c_str(),
namespace_type,
java_permitted_path != nullptr ?
permitted_path.c_str() :
nullptr);
if (ns != nullptr) {
namespaces_.push_back(std::make_pair(env->NewWeakGlobalRef(class_loader), ns));
}
return ns;
}