android.hxx

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#pragma once
#include <ice/os/unix.hxx>
 
#if ISP_ANDROID
#include <jni.h>
 
template<typename JNIType>
struct AndroidJNIHandleDescriptorBase
{
    using PlatformHandleType = JNIType;
    using HandleManagerType = JNIEnv*;

    static constexpr PlatformHandleType InvalidHandle = JNIType{};
 
    static bool is_valid(PlatformHandleType handle, HandleManagerType jni) noexcept
    {
        return handle != InvalidHandle && jni != nullptr;
    }
 
    static bool close(PlatformHandleType handle, HandleManagerType jni) noexcept
    {
        jni->DeleteLocalRef(handle);
        return true;
    }
};
 
template<>
struct ice::os::HandleDescriptor<ice::os::HandleType::JClass> : AndroidJNIHandleDescriptorBase<jclass> { };
template<>
struct ice::os::HandleDescriptor<ice::os::HandleType::JObject> : AndroidJNIHandleDescriptorBase<jobject> { };
template<>
struct ice::os::HandleDescriptor<ice::os::HandleType::JString> : AndroidJNIHandleDescriptorBase<jstring> { };
 
// Can't use 'unix' since it's a define
namespace ice::jni
{
 
    using JClass  = ice::os::Handle<ice::os::HandleType::JClass>;
    using JObject = ice::os::Handle<ice::os::HandleType::JObject>;
    using JString = ice::os::Handle<ice::os::HandleType::JString>;
 
} // namespace ice::unix
 
#endif // ISP_ANDROID