IOPMinformeeList.h   [plain text]

/*
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#include <libkern/c++/OSObject.h>
#include <IOKit/IOLocks.h>
#include <IOKit/IOReturn.h>

class IOPMinformee;
class IOService;

class IOPMinformeeList : public OSObject
{
OSDeclareDefaultStructors(IOPMinformeeList)
    friend class IOPMinformee;

private:
    // pointer to first informee in the list
    IOPMinformee       *firstItem;
    // how many informees are in the list
    unsigned long       length;

public:
    void initialize ( void );
    void free ( void );

    unsigned long numberOfItems ( void );

    IOPMinformee *appendNewInformee( IOService * newObject );
    
    // OBSOLETE
    // do not use addToList(); Use appendNewInformee() instead
    IOReturn addToList ( IOPMinformee *   newInformee );
    IOReturn removeFromList ( IOService * theItem );
    
    IOPMinformee * firstInList ( void );
    IOPMinformee * nextInList ( IOPMinformee * currentItem );
    
    IOPMinformee * findItem ( IOService * driverOrChild );        

    // This lock must be held while modifying list or length
    static IORecursiveLock * getSharedRecursiveLock( void );
};