ZFAutoReleasePool.h

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#ifndef _ZFI_ZFAutoReleasePool_h_
#define _ZFI_ZFAutoReleasePool_h_
 
#include "ZFObject.h"
ZF_NAMESPACE_GLOBAL_BEGIN

zfclass ZFLIB_ZFCore ZFAutoReleasePool : zfextend ZFObject {
    ZFOBJECT_DECLARE(ZFAutoReleasePool, ZFObject)
 
    
    ZFOBJECT_SINGLETON_DECLARE(ZFAutoReleasePool, instance)
 
protected:
    zfoverride
    virtual void objectOnDeallocPrepare(void);
 
    zfoverride
    virtual void objectInfoImplAppend(ZF_IN_OUT zfstring &ret);
 
public:
    void poolAdd(ZF_IN ZFObject *obj) {
        if(obj != zfnull) {
            ZFCoreMutexLocker();
            ZFCoreAssertWithMessage(obj != this, "add autorelease pool to itself isn't allowed");
            d.add(obj);
        }
    }

    void poolDrain() {
        if(!d.isEmpty()) {
            ZFCoreMutexLock();
            ZFCoreArray<ZFObject *> tmp;
            tmp.swap(d);
            ZFCoreMutexUnlock();
 
            for(zfindex i = 0; i < tmp.count(); ++i) {
                zfobjRelease(tmp[i]);
            }
        }
    }

    void poolDrain(ZF_IN zfindex count) {
        if(d.count() > count) {
            ZFCoreMutexLock();
            ZFCoreArray<ZFObject *> tmp;
            tmp.addFrom(d.arrayBuf(), d.count() - count);
            d.remove(0, d.count() - count);
            ZFCoreMutexUnlock();
 
            for(zfindex i = 0; i < tmp.count(); ++i) {
                zfobjRelease(tmp[i]);
            }
        }
    }

    zfindex poolCount(void) {
        return d.count();
    }
 
private:
    ZFCoreArray<ZFObject *> d;
};
 
ZF_NAMESPACE_GLOBAL_END
#endif // #ifndef _ZFI_ZFAutoReleasePool_h_