Mac Platform APIs

/**
 * Core Foundation framework functions
 */
public interface CoreFoundation extends Library {
    CoreFoundation INSTANCE = Native.load("CoreFoundation", CoreFoundation.class);
    
    // String encoding constants
    int kCFStringEncodingUTF8 = 0x08000100;
    int kCFStringEncodingASCII = 0x0600;
    
    /**
     * Create CFString from C string
     * @param alloc Allocator to use (can be null for default)
     * @param cStr C string to convert
     * @param encoding String encoding (kCFStringEncodingUTF8, etc.)
     * @return CFString reference, or null if failed
     */
    CFStringRef CFStringCreateWithCString(CFAllocatorRef alloc, String cStr, int encoding);
    
    /**
     * Create CFString from characters
     * @param alloc Allocator to use (can be null for default)
     * @param chars Character array
     * @param numChars Number of characters
     * @return CFString reference, or null if failed
     */
    CFStringRef CFStringCreateWithCharacters(CFAllocatorRef alloc, char[] chars, CFIndex numChars);
    
    /**
     * Get length of CFString
     * @param theString CFString to measure
     * @return String length in characters
     */
    CFIndex CFStringGetLength(CFStringRef theString);
    
    /**
     * Get C string from CFString
     * @param theString CFString to convert
     * @param buffer Buffer to store C string
     * @param bufferSize Buffer size
     * @param encoding String encoding
     * @return true if successful
     */
    boolean CFStringGetCString(CFStringRef theString, byte[] buffer, CFIndex bufferSize, int encoding);
    
    /**
     * Release Core Foundation object
     * @param cf Object to release
     */
    void CFRelease(CFTypeRef cf);
    
    /**
     * Retain Core Foundation object
     * @param cf Object to retain
     * @return Same object with incremented reference count
     */
    CFTypeRef CFRetain(CFTypeRef cf);
    
    /**
     * Get reference count of object
     * @param cf Core Foundation object
     * @return Current reference count
     */
    CFIndex CFGetRetainCount(CFTypeRef cf);
    
    /**
     * Get type identifier for object
     * @param cf Core Foundation object
     * @return Type identifier
     */
    CFTypeID CFGetTypeID(CFTypeRef cf);
    
    /**
     * Get type identifier for CFString
     * @return CFString type identifier
     */
    CFTypeID CFStringGetTypeID();
}

/**
 * Core Foundation type definitions
 */
public static class CFTypeRef extends PointerType {
    public CFTypeRef() { }
    public CFTypeRef(Pointer p) { super(p); }
}

public static class CFStringRef extends CFTypeRef {
    public CFStringRef() { }
    public CFStringRef(Pointer p) { super(p); }
}

public static class CFAllocatorRef extends CFTypeRef {
    public CFAllocatorRef() { }
    public CFAllocatorRef(Pointer p) { super(p); }
}

public static class CFIndex extends NativeLong {
    public CFIndex() { }
    public CFIndex(long value) { super(value); }
}

public static class CFTypeID extends NativeLong {
    public CFTypeID() { }
    public CFTypeID(long value) { super(value); }
}

import com.sun.jna.platform.mac.CoreFoundation;
import com.sun.jna.platform.mac.CoreFoundation.*;

// Create a CFString
CFStringRef cfString = CoreFoundation.INSTANCE.CFStringCreateWithCString(
    null, "Hello, macOS!", CoreFoundation.kCFStringEncodingUTF8);

if (cfString != null) {
    // Get string length
    CFIndex length = CoreFoundation.INSTANCE.CFStringGetLength(cfString);
    System.out.println("String length: " + length.longValue());
    
    // Convert back to Java string
    byte[] buffer = new byte[256];
    boolean success = CoreFoundation.INSTANCE.CFStringGetCString(
        cfString, buffer, new CFIndex(256), CoreFoundation.kCFStringEncodingUTF8);
    
    if (success) {
        String javaString = new String(buffer, "UTF-8").trim();
        System.out.println("Retrieved string: " + javaString);
    }
    
    // Release the CFString
    CoreFoundation.INSTANCE.CFRelease(cfString);
}

/**
 * I/O Kit framework functions
 */
public interface IOKit extends Library {
    IOKit INSTANCE = Native.load("IOKit", IOKit.class);
    
    // I/O Kit return codes
    int kIOReturnSuccess = 0;
    int kIOReturnError = 0xe00002bc;
    int kIOReturnBadArgument = 0xe00002c2;
    
    /**
     * Create matching dictionary for I/O Kit services
     * @param name Service name to match
     * @return Matching dictionary, or null if failed
     */
    CFMutableDictionaryRef IOServiceMatching(String name);
    
    /**
     * Get services matching criteria
     * @param masterPort Master port (usually 0)
     * @param matching Matching dictionary
     * @param existing Iterator for matching services
     * @return I/O Kit return code
     */
    int IOServiceGetMatchingServices(int masterPort, CFDictionaryRef matching, 
                                   Pointer /* io_iterator_t */ existing);
    
    /**
     * Get next service from iterator
     * @param iterator Service iterator
     * @return Service object, or 0 if no more services
     */
    int /* io_object_t */ IOIteratorNext(int /* io_iterator_t */ iterator);
    
    /**
     * Get service property
     * @param service Service object
     * @param key Property key as CFString
     * @return Property value as CFType, or null if not found
     */
    CFTypeRef IORegistryEntryCreateCFProperty(int /* io_registry_entry_t */ service,
                                             CFStringRef key, CFAllocatorRef allocator, int options);
    
    /**
     * Get service name
     * @param service Service object
     * @param name Buffer for service name
     * @return I/O Kit return code
     */
    int IORegistryEntryGetName(int /* io_registry_entry_t */ service, byte[] name);
    
    /**
     * Get parent service
     * @param service Child service
     * @param plane I/O Registry plane name
     * @param parent Parent service output
     * @return I/O Kit return code
     */
    int IORegistryEntryGetParentEntry(int /* io_registry_entry_t */ service, String plane,
                                     IntByReference /* io_registry_entry_t */ parent);
    
    /**
     * Release I/O Kit object
     * @param object Object to release
     * @return I/O Kit return code
     */
    int IOObjectRelease(int /* io_object_t */ object);
}

/**
 * Core Foundation dictionary reference
 */
public static class CFDictionaryRef extends CFTypeRef {
    public CFDictionaryRef() { }
    public CFDictionaryRef(Pointer p) { super(p); }
}

public static class CFMutableDictionaryRef extends CFDictionaryRef {
    public CFMutableDictionaryRef() { }
    public CFMutableDictionaryRef(Pointer p) { super(p); }
}

import com.sun.jna.platform.mac.IOKit;
import com.sun.jna.platform.mac.CoreFoundation;
import com.sun.jna.ptr.IntByReference;

// Enumerate USB devices
CFMutableDictionaryRef matchingDict = IOKit.INSTANCE.IOServiceMatching("IOUSBDevice");
if (matchingDict != null) {
    IntByReference iterator = new IntByReference();
    int result = IOKit.INSTANCE.IOServiceGetMatchingServices(0, matchingDict, iterator.getPointer());
    
    if (result == IOKit.kIOReturnSuccess) {
        int service;
        while ((service = IOKit.INSTANCE.IOIteratorNext(iterator.getValue())) != 0) {
            // Get device name
            byte[] nameBuffer = new byte[256];
            if (IOKit.INSTANCE.IORegistryEntryGetName(service, nameBuffer) == IOKit.kIOReturnSuccess) {
                String deviceName = new String(nameBuffer).trim();
                System.out.println("USB Device: " + deviceName);
            }
            
            // Get device properties
            CFStringRef vendorKey = CoreFoundation.INSTANCE.CFStringCreateWithCString(
                null, "idVendor", CoreFoundation.kCFStringEncodingUTF8);
            
            CFTypeRef vendorID = IOKit.INSTANCE.IORegistryEntryCreateCFProperty(
                service, vendorKey, null, 0);
            
            if (vendorID != null) {
                // Process vendor ID...
                CoreFoundation.INSTANCE.CFRelease(vendorID);
            }
            
            CoreFoundation.INSTANCE.CFRelease(vendorKey);
            IOKit.INSTANCE.IOObjectRelease(service);
        }
    }
}

/**
 * Carbon framework functions (legacy)
 */
public interface Carbon extends Library {
    Carbon INSTANCE = Native.load("Carbon", Carbon.class);
    
    // Event class constants
    int kEventClassKeyboard = 1801812322; // 'keyb'
    int kEventClassApplication = 1634758764; // 'appl'
    
    // Event kind constants
    int kEventHotKeyPressed = 5;
    int kEventHotKeyReleased = 6;
    
    /**
     * Register global hot key
     * @param inHotKeyID Hot key identifier
     * @param inHotKey Hot key specification
     * @param inTarget Event target (can be null)
     * @param inOptions Options (usually 0)
     * @param outRef Hot key reference output
     * @return OSStatus result code
     */
    int RegisterEventHotKey(int inHotKeyID, int inHotKey, Pointer inTarget, 
                           int inOptions, Pointer outRef);
    
    /**
     * Unregister global hot key
     * @param inHotKey Hot key reference to unregister
     * @return OSStatus result code
     */
    int UnregisterEventHotKey(Pointer inHotKey);
    
    /**
     * Install event handler
     * @param inTarget Event target
     * @param inHandler Handler function
     * @param inNumTypes Number of event types
     * @param inList Event type specifications
     * @param inUserData User data for handler
     * @param outRef Handler reference output
     * @return OSStatus result code
     */
    int InstallEventHandler(Pointer inTarget, Pointer inHandler, int inNumTypes,
                           Pointer inList, Pointer inUserData, Pointer outRef);
    
    /**
     * Get application event target
     * @return Event target for current application
     */
    Pointer GetApplicationEventTarget();
    
    /**
     * Run application event loop
     */
    void RunApplicationEventLoop();
    
    /**
     * Quit application event loop
     */
    void QuitApplicationEventLoop();
}

/**
 * BSD system calls on macOS
 */
public interface SystemB extends Library {
    SystemB INSTANCE = Native.load("System", SystemB.class);
    
    /**
     * Get system information
     * @param name System parameter name
     * @param oldp Buffer for current value
     * @param oldlenp Size of buffer / returned size
     * @param newp New value to set (can be null)
     * @param newlen Size of new value
     * @return 0 if successful, -1 if failed
     */
    int sysctlbyname(String name, Pointer oldp, IntByReference oldlenp, 
                    Pointer newp, size_t newlen);
    
    /**
     * Get process information
     * @param pid Process ID (0 for current process)
     * @param info Process info structure
     * @param size Size of info structure
     * @return 0 if successful, -1 if failed
     */
    int proc_pidinfo(int pid, int flavor, long arg, Pointer info, int size);
    
    /**
     * Get host information
     * @param host Host port
     * @param flavor Information type
     * @param host_info Buffer for host information
     * @param host_info_cnt Size of buffer
     * @return KERN_SUCCESS if successful
     */
    int host_info(int host, int flavor, Pointer host_info, IntByReference host_info_cnt);
}

/**
 * Disk Arbitration framework functions
 */
public interface DiskArbitration extends Library {
    DiskArbitration INSTANCE = Native.load("DiskArbitration", DiskArbitration.class);
    
    /**
     * Create disk arbitration session
     * @param allocator Allocator to use (can be null)
     * @return Session reference, or null if failed
     */
    DASessionRef DASessionCreate(CFAllocatorRef allocator);
    
    /**
     * Create disk object from BSD name
     * @param allocator Allocator to use (can be null)
     * @param session Disk arbitration session
     * @param name BSD device name (e.g., "disk1")
     * @return Disk reference, or null if failed
     */
    DADiskRef DADiskCreateFromBSDName(CFAllocatorRef allocator, DASessionRef session, String name);
    
    /**
     * Get disk description
     * @param disk Disk reference
     * @return Description dictionary
     */
    CFDictionaryRef DADiskCopyDescription(DADiskRef disk);
    
    /**
     * Mount disk
     * @param disk Disk to mount
     * @param path Mount path (can be null for default)
     * @param options Mount options
     * @param callback Completion callback
     * @param context Callback context
     */
    void DADiskMount(DADiskRef disk, CFURLRef path, int options, 
                    DADiskMountCallback callback, Pointer context);
    
    /**
     * Unmount disk
     * @param disk Disk to unmount
     * @param options Unmount options
     * @param callback Completion callback
     * @param context Callback context
     */
    void DADiskUnmount(DADiskRef disk, int options, 
                      DADiskUnmountCallback callback, Pointer context);
}

public static class DASessionRef extends CFTypeRef {
    public DASessionRef() { }
    public DASessionRef(Pointer p) { super(p); }
}

public static class DADiskRef extends CFTypeRef {
    public DADiskRef() { }
    public DADiskRef(Pointer p) { super(p); }
}

/**
 * macOS extended attributes
 */
public interface XAttr extends Library {
    XAttr INSTANCE = Native.load("c", XAttr.class);
    
    // Extended attribute options
    int XATTR_NOFOLLOW = 1;     // Don't follow symbolic links
    int XATTR_CREATE = 2;       // Create only (fail if exists)
    int XATTR_REPLACE = 4;      // Replace only (fail if doesn't exist)
    
    /**
     * Set extended attribute
     * @param path File path
     * @param name Attribute name
     * @param value Attribute value
     * @param size Value size
     * @param position Starting position (usually 0)
     * @param options Operation options
     * @return 0 if successful, -1 if failed
     */
    int setxattr(String path, String name, Pointer value, size_t size, int position, int options);
    
    /**
     * Get extended attribute
     * @param path File path
     * @param name Attribute name
     * @param value Buffer for value
     * @param size Buffer size
     * @param position Starting position (usually 0)
     * @param options Operation options
     * @return Size of attribute, or -1 if failed
     */
    size_t getxattr(String path, String name, Pointer value, size_t size, int position, int options);
    
    /**
     * Remove extended attribute
     * @param path File path
     * @param name Attribute name
     * @param options Operation options
     * @return 0 if successful, -1 if failed
     */
    int removexattr(String path, String name, int options);
    
    /**
     * List extended attributes
     * @param path File path
     * @param namebuf Buffer for attribute names
     * @param size Buffer size
     * @param options Operation options
     * @return Size of name list, or -1 if failed
     */
    size_t listxattr(String path, Pointer namebuf, size_t size, int options);
}

/**
 * macOS extended attribute utilities
 */
public class XAttrUtil {
    /**
     * Set string extended attribute
     * @param path File path
     * @param name Attribute name
     * @param value String value
     * @throws IOException if operation fails
     */
    public static void setXAttr(String path, String name, String value) throws IOException;
    
    /**
     * Get string extended attribute
     * @param path File path
     * @param name Attribute name
     * @return Attribute value, or null if not found
     * @throws IOException if operation fails
     */
    public static String getXAttr(String path, String name) throws IOException;
    
    /**
     * List all extended attributes
     * @param path File path
     * @return Array of attribute names
     * @throws IOException if operation fails
     */
    public static String[] listXAttrs(String path) throws IOException;
}

/**
 * High-level I/O Kit utilities
 */
public class IOKitUtil {
    /**
     * Get system serial number
     * @return System serial number string
     * @throws IOReturnException if operation fails
     */
    public static String getSystemSerialNumber() throws IOReturnException;
    
    /**
     * Get system model identifier
     * @return Model identifier string (e.g., "MacBookPro15,1")
     * @throws IOReturnException if operation fails
     */
    public static String getSystemModel() throws IOReturnException;
    
    /**
     * Get list of USB devices
     * @return List of USB device information
     * @throws IOReturnException if enumeration fails
     */
    public static List<USBDeviceInfo> getUSBDevices() throws IOReturnException;
    
    /**
     * Get thermal state information
     * @return Thermal state data
     * @throws IOReturnException if operation fails
     */
    public static ThermalState getThermalState() throws IOReturnException;
}

/**
 * I/O Kit specific exception
 */
public class IOReturnException extends Exception {
    private final int returnCode;
    
    public IOReturnException(int returnCode) {
        super("I/O Kit operation failed with code: 0x" + Integer.toHexString(returnCode));
        this.returnCode = returnCode;
    }
    
    public int getReturnCode() {
        return returnCode;
    }
}

/**
 * macOS file utilities
 */
public class MacFileUtils extends FileUtils {
    @Override
    public boolean moveToTrash(File... files) throws IOException {
        // Implementation uses Finder to move files to Trash
        // Returns true if all files moved successfully
    }
    
    @Override
    public boolean hasTrash() {
        return true; // macOS always has Trash
    }
    
    /**
     * Get file type and creator codes (legacy HFS)
     * @param file File to examine
     * @return Type and creator information
     * @throws IOException if operation fails
     */
    public static FileTypeInfo getFileTypeInfo(File file) throws IOException;
    
    /**
     * Set file type and creator codes (legacy HFS)
     * @param file File to modify
     * @param type File type code
     * @param creator Creator code
     * @throws IOException if operation fails
     */
    public static void setFileTypeInfo(File file, String type, String creator) throws IOException;
}

import com.sun.jna.platform.mac.*;

public class MacOSExample {
    public static void main(String[] args) {
        try {
            // Get system information using I/O Kit
            String serialNumber = IOKitUtil.getSystemSerialNumber();
            String model = IOKitUtil.getSystemModel();
            System.out.println("System: " + model + " (" + serialNumber + ")");
            
            // Work with Core Foundation strings
            CFStringRef cfStr = CoreFoundation.INSTANCE.CFStringCreateWithCString(
                null, "Hello macOS", CoreFoundation.kCFStringEncodingUTF8);
            
            // Use Disk Arbitration to get volume info
            DASessionRef session = DiskArbitration.INSTANCE.DASessionCreate(null);
            if (session != null) {
                DADiskRef disk = DiskArbitration.INSTANCE.DADiskCreateFromBSDName(
                    null, session, "disk1");
                if (disk != null) {
                    CFDictionaryRef description = DiskArbitration.INSTANCE.DADiskCopyDescription(disk);
                    // Process disk description...
                    CoreFoundation.INSTANCE.CFRelease(description);
                    CoreFoundation.INSTANCE.CFRelease(disk);
                }
                CoreFoundation.INSTANCE.CFRelease(session);
            }
            
            // Set extended attributes
            XAttrUtil.setXAttr("/tmp/testfile", "com.myapp.comment", "My test file");
            String comment = XAttrUtil.getXAttr("/tmp/testfile", "com.myapp.comment");
            System.out.println("File comment: " + comment);
            
            // Clean up
            CoreFoundation.INSTANCE.CFRelease(cfStr);
            
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}