virtualmachine.hxx

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#ifndef INCLUDED_JVMACCESS_VIRTUALMACHINE_HXX
#define INCLUDED_JVMACCESS_VIRTUALMACHINE_HXX
 
#include <jvmaccess/jvmaccessdllapi.h>
#include <rtl/ref.hxx>
#include <salhelper/simplereferenceobject.hxx>
 
#if defined __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunknown-attributes"
#endif
#include <jni.h>
#if defined __clang__
#pragma clang diagnostic pop
#endif
 
namespace jvmaccess
{
class JVMACCESS_DLLPUBLIC VirtualMachine final : public salhelper::SimpleReferenceObject
{
public:
    class JVMACCESS_DLLPUBLIC AttachGuard
    {
    public:
        class JVMACCESS_DLLPUBLIC CreationException final
        {
        public:
            CreationException();
 
            CreationException(CreationException const&);
 
            CreationException& operator=(CreationException const&);
        };
 
        explicit AttachGuard(rtl::Reference<VirtualMachine> xMachine);
 
        ~AttachGuard();
 
        JNIEnv* getEnvironment() const { return m_pEnvironment; }
 
    private:
        AttachGuard(AttachGuard const&) = delete;
        AttachGuard& operator=(AttachGuard const&) = delete;
 
        rtl::Reference<VirtualMachine> m_xMachine;
        JNIEnv* m_pEnvironment;
        bool m_bDetach;
    };
 
    VirtualMachine(JavaVM* pVm, int nVersion, bool bDestroy, JNIEnv const* pMainThreadEnv);
 
private:
    VirtualMachine(VirtualMachine const&) = delete;
    VirtualMachine& operator=(VirtualMachine const&) = delete;
 
    virtual ~VirtualMachine() override;
 
    JNIEnv* attachThread(bool* pAttached) const;
 
    void detachThread() const;
 
    JavaVM* m_pVm;
    jint m_nVersion;
    bool m_bDestroy;
 
    friend class AttachGuard; // to access attachThread, detachThread
};
}
 
#endif // INCLUDED_JVMACCESS_VIRTUALMACHINE_HXX
 
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