/* * Copyright © 1998-2012 Apple Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ #ifndef KLOG_H #define KLOG_H #include <IOKit/IOService.h> #include <IOKit/IOLocks.h> #include "KLogClient.h" extern "C" { #include <sys/time.h> } //================================================================================================ // Defines //================================================================================================ #define kLogKextName "com_apple_iokit_KLog" struct klog64_timeval{ uint64_t tv_sec; uint64_t tv_usec; }; //================================================================================================ // Configuration constants //================================================================================================ #define BUFSIZE 512 //bytes #define MAXENTRIES 500 #define MAXUSERS 5 //================================================================================================ // Custom Types //================================================================================================ typedef UInt32 KLogLevel; typedef UInt32 KLogTag; //================================================================================================ // com_apple_iokit_KLog //================================================================================================ class com_apple_iokit_KLog : public IOService { OSDeclareDefaultStructors(com_apple_iokit_KLog) com_apple_iokit_KLogClient *mClientPtr[MAXUSERS+1]; unsigned char * mMsgBuffer; UInt8 mClientCount; UInt16 mMsgSize; bool mErrFlag; struct klog64_timeval * mTimeVal; IOLock * mLogLock; public: static com_apple_iokit_KLog * sLogger; // IOService overrides. virtual bool init(OSDictionary *dictionary = 0); virtual void free(void); virtual IOService * probe(IOService *provider, SInt32 *score); virtual bool start(IOService *provider); virtual void stop(IOService *provider); void closeChild(com_apple_iokit_KLogClient *ptr); virtual IOReturn newUserClient( task_t owningTask, void * securityID, UInt32 type, IOUserClient ** handler ); // Class specific stuff. void setErr( bool set ); // Write items into our buffer using these. virtual SInt8 Log( KLogLevel level, KLogTag tag, const char *format, ... ); virtual SInt8 vLog( KLogLevel level, KLogTag tag, const char *format, va_list in_va_list ); }; #endif