/*
- * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * @APPLE_OSREFERENCE_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. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * 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 OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
+ * 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_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*-
*
* @(#)systm.h 8.7 (Berkeley) 3/29/95
*/
-
+
/*
* The `securelevel' variable controls the security level of the system.
* It can only be decreased by process 1 (/sbin/init).
* raw disks of mounted filesystems, /dev/mem, and /dev/kmem are
* read-only.
* 2 highly secure mode - same as (1) plus raw disks are always
- * read-only whether mounted or not. This level precludes tampering
+ * read-only whether mounted or not. This level precludes tampering
* with filesystems by unmounting them, but also inhibits running
* newfs while the system is secured.
*
*/
#ifndef _SYS_SYSTM_H_
-#define _SYS_SYSTM_H_
+#define _SYS_SYSTM_H_
#include <sys/appleapiopts.h>
#include <sys/cdefs.h>
#include <sys/types.h>
#include <sys/time.h>
+#include <sys/ioctl.h>
+#include <sys/malloc.h>
+#ifdef BSD_KERNEL_PRIVATE
#include <sys/tty.h>
#include <sys/vm.h>
+#endif
#include <sys/proc.h>
-#include <sys/linker_set.h>
__BEGIN_DECLS
+#ifdef KERNEL
+#include <libkern/libkern.h>
+#endif
#include <kern/thread.h>
+#include <kern/debug.h>
__END_DECLS
-#ifdef __APPLE_API_PRIVATE
-extern int securelevel; /* system security level */
-extern const char *panicstr; /* panic message */
-extern char version[]; /* system version */
-extern char copyright[]; /* system copyright */
-
+#ifdef BSD_KERNEL_PRIVATE
+extern char version[]; /* system version */
+extern const char copyright[]; /* system copyright */
-extern struct sysent { /* system call table */
- int16_t sy_narg; /* number of args */
- int8_t sy_parallel;/* can execute in parallel */
- int8_t sy_funnel; /* funnel type */
- int32_t (*sy_call)(); /* implementing function */
-} sysent[];
-extern int nsysent;
-extern int boothowto; /* reboot flags, from console subsystem */
-extern int show_space;
+extern int boothowto; /* reboot flags, from console subsystem */
+extern int show_space;
+extern int minimalboot;
+#if CONFIG_EMBEDDED
+extern int darkboot;
+#endif
-extern int nblkdev; /* number of entries in bdevsw */
-extern int nchrdev; /* number of entries in cdevsw */
-extern dev_t rootdev; /* root device */
-extern struct vnode *rootvp; /* vnode equivalent to above */
-#endif /* __APPLE_API_PRIVATE */
+extern const int nblkdev; /* number of entries in bdevsw */
+extern const int nchrdev; /* number of entries in cdevsw */
+#endif /* BSD_KERNEL_PRIVATE */
-#ifdef __APPLE_API_UNSTABLE
-#define NO_FUNNEL 0
-#define KERNEL_FUNNEL 1
-#define NETWORK_FUNNEL 2
+#ifdef KERNEL_PRIVATE
-extern funnel_t * kernel_flock;
-extern funnel_t * network_flock;
-#endif /* __APPLE_API_UNSTABLE */
+extern int securelevel; /* system security level */
+extern dev_t rootdev; /* root device */
+extern struct vnode *rootvp; /* vnode equivalent to above */
-#define SYSINIT(a,b,c,d,e)
-#define MALLOC_DEFINE(a,b,c)
+#endif /* KERNEL_PRIVATE */
-#define getenv_int(a,b) (*b = 0)
-#define KASSERT(exp,msg)
+#define SYSINIT(a, b, c, d, e)
+#define MALLOC_DEFINE(a, b, c)
+#define getenv_int(a, b) (*b = 0)
+#define KASSERT(exp, msg)
/*
* General function declarations.
*/
__BEGIN_DECLS
-int nullop __P((void));
-int enodev (); /* avoid actual prototype for multiple use */
-void enodev_strat();
-int nulldev();
-int enoioctl __P((void));
-int enxio __P((void));
-int eopnotsupp __P((void));
-int einval __P((void));
-
-#ifdef __APPLE_API_UNSTABLE
-int seltrue __P((dev_t dev, int which, struct proc *p));
-#endif /* __APPLE_API_UNSTABLE */
-
-void *hashinit __P((int count, int type, u_long *hashmask));
-int nosys __P((struct proc *, void *, register_t *));
-
-#ifdef __GNUC__
-volatile void panic __P((const char *, ...));
-#else
-void panic __P((const char *, ...));
-#endif
-void tablefull __P((const char *));
-void log __P((int, const char *, ...));
-void kprintf __P((const char *, ...));
-void ttyprintf __P((struct tty *, const char *, ...));
-
-int kvprintf __P((char const *, void (*)(int, void*), void *, int,
- _BSD_VA_LIST_));
-
-int snprintf __P((char *, size_t, const char *, ...));
-int sprintf __P((char *buf, const char *, ...));
-void uprintf __P((const char *, ...));
-void vprintf __P((const char *, _BSD_VA_LIST_));
-int vsnprintf __P((char *, size_t, const char *, _BSD_VA_LIST_));
-int vsprintf __P((char *buf, const char *, _BSD_VA_LIST_));
-
-void bcopy __P((const void *from, void *to, size_t len));
-void ovbcopy __P((const void *from, void *to, size_t len));
-void bzero __P((void *buf, size_t len));
-
-int copystr __P((void *kfaddr, void *kdaddr, size_t len, size_t *done));
-int copyinstr __P((void *udaddr, void *kaddr, size_t len, size_t *done));
-int copyoutstr __P((void *kaddr, void *udaddr, size_t len, size_t *done));
-int copyin __P((void *udaddr, void *kaddr, size_t len));
-int copyout __P((void *kaddr, void *udaddr, size_t len));
-int copywithin __P((void *saddr, void *daddr, size_t len));
-
-int fubyte __P((void *base));
-#ifdef notdef
-int fuibyte __P((void *base));
-#endif
-int subyte __P((void *base, int byte));
-int suibyte __P((void *base, int byte));
-long fuword __P((void *base));
-long fuiword __P((void *base));
-int suword __P((void *base, long word));
-int suiword __P((void *base, long word));
-
-#ifdef __APPLE_API_UNSTABLE
-int hzto __P((struct timeval *tv));
+
+#ifdef BSD_KERNEL_PRIVATE
+int einval(void);
+void nullsys(void);
+int errsys(void);
+int seltrue(dev_t dev, int which, struct proc *p);
+void ttyprintf(struct tty *, const char *, ...) __printflike(2, 3);
+void realitexpire(struct proc *);
+int hzto(struct timeval *tv);
+void tablefull(const char *);
+int kvprintf(char const *, void (*)(int, void*), void *, int,
+ __darwin_va_list) __printflike(1, 0);
+void uprintf(const char *, ...) __printflike(1, 2);
+int copywithin(void *saddr, void *daddr, size_t len);
+int64_t fulong(user_addr_t addr);
+int sulong(user_addr_t addr, int64_t longword);
+uint64_t fuulong(user_addr_t addr);
+int suulong(user_addr_t addr, uint64_t ulongword);
+int clone_system_shared_regions(int shared_regions_active,
+ int chain_regions,
+ int base_vnode);
+extern kern_return_t bsd_exception(int, mach_exception_data_t codes, int);
+extern void bsdinit_task(void);
+extern void unix_syscall_return(int) __dead2;
+void initclocks(void);
+void startprofclock(struct proc *);
+void stopprofclock(struct proc *);
+void setstatclockrate(int hzrate);
+struct time_value;
+void get_procrustime(struct time_value *tv);
+void load_init_program(struct proc *p);
+void __pthread_testcancel(int presyscall);
+void throttle_info_get_last_io_time(mount_t mp, struct timeval *tv);
+void update_last_io_time(mount_t mp);
+void throttle_info_end_io(buf_t bp);
+#endif /* BSD_KERNEL_PRIVATE */
+
+#ifdef KERNEL_PRIVATE
+void timeout(void (*)(void *), void *arg, int ticks);
+void timeout_with_leeway(void (*)(void *), void *arg, int ticks, int leeway_ticks);
+void untimeout(void (*)(void *), void *arg);
+int bsd_hostname(char *, int, int*);
+int vslock(user_addr_t addr, user_size_t len);
+int vsunlock(user_addr_t addr, user_size_t len, int dirtied);
+#endif /* KERNEL_PRIVATE */
+
+int nullop(void);
+int nulldev(void);
+int enoioctl(void);
+int enosys(void);
+int enxio(void);
+int eopnotsupp(void);
+void *hashinit(int count, int type, u_long *hashmask);
+void ovbcopy(const void *from, void *to, size_t len);
+int fubyte(user_addr_t addr);
+int fuibyte(user_addr_t addr);
+int subyte(user_addr_t addr, int byte);
+int suibyte(user_addr_t addr, int byte);
+long fuword(user_addr_t addr);
+long fuiword(user_addr_t addr);
+int suword(user_addr_t addr, long word);
+int suiword(user_addr_t addr, long word);
+#define fusize(_a) ((user_size_t)fulong(_a))
+#define susize(_a, _s) sulong((_a), (_s))
+#define fuptr(a) ((user_addr_t)fulong(_a)
+#define suptr(_a, _p) sulong((_a), (_p))
+int useracc(user_addr_t addr, user_size_t len, int prot);
typedef void (*timeout_fcn_t)(void *);
-void timeout __P((void (*)(void *), void *arg, int ticks));
-void untimeout __P((void (*)(void *), void *arg));
-void realitexpire __P((void *));
-#endif /* __APPLE_API_UNSTABLE */
-
-#ifdef __APPLE_API_PRIVATE
-void bsd_hardclock __P((boolean_t usermode, caddr_t pc, int numticks));
-void gatherstats __P((boolean_t usermode, caddr_t pc));
-
-void initclocks __P((void));
-
-void startprofclock __P((struct proc *));
-void stopprofclock __P((struct proc *));
-void setstatclockrate __P((int hzrate));
-#ifdef DDB
-/* debugger entry points */
-int Debugger __P((void)); /* in DDB only */
+void bsd_timeout(void (*)(void *), void *arg, struct timespec * ts);
+void bsd_untimeout(void (*)(void *), void *arg);
+void set_fsblocksize(struct vnode *);
+uint64_t tvtoabstime(struct timeval *);
+uint64_t tstoabstime(struct timespec *);
+void *throttle_info_create(void);
+void throttle_info_mount_ref(mount_t mp, void * throttle_info);
+void throttle_info_mount_rel(mount_t mp);
+void throttle_info_release(void *throttle_info);
+void throttle_info_update(void *throttle_info, int flags);
+uint32_t throttle_lowpri_io(int sleep_amount);
+/* returns TRUE if the throttle_lowpri_io called with the same sleep_amount would've slept */
+int throttle_lowpri_io_will_be_throttled(int sleep_amount);
+void throttle_set_thread_io_policy(int policy);
+int throttle_get_thread_effective_io_policy(void);
+
+typedef struct __throttle_info_handle *throttle_info_handle_t;
+int throttle_info_ref_by_mask(uint64_t throttle_mask, throttle_info_handle_t *throttle_info_handle);
+void throttle_info_rel_by_mask(throttle_info_handle_t throttle_info_handle);
+void throttle_info_update_by_mask(void *throttle_info_handle, int flags);
+void throttle_info_disable_throttle(int devno, boolean_t isfusion);
+/*
+ * 'throttle_info_handle' acquired via 'throttle_info_ref_by_mask'
+ * 'policy' should be specified as either IOPOL_UTILITY or IPOL_THROTTLE,
+ * all other values will be treated as IOPOL_NORMAL (i.e. no throttling)
+ */
+int throttle_info_io_will_be_throttled(void *throttle_info_handle, int policy);
+
+#ifdef KERNEL_PRIVATE
+
+/* returned by throttle_io_will_be_throttled */
+#define THROTTLE_DISENGAGED 0
+#define THROTTLE_ENGAGED 1
+#define THROTTLE_NOW 2
+
+int throttle_io_will_be_throttled(int lowpri_window_msecs, mount_t mp);
+int throttle_lowpri_window(void) __attribute__((pure));
+struct uthread;
+void throttle_info_reset_window(struct uthread *ut);
+
#endif
-void set_fsblocksize __P((struct vnode *));
-#endif /* __APPLE_API_PRIVATE */
+#ifdef XNU_KERNEL_PRIVATE
+void *exec_spawnattr_getmacpolicyinfo(const void *macextensions, const char *policyname, size_t *lenp);
+#endif
-void addlog __P((const char *, ...));
-void printf __P((const char *, ...));
+#ifdef BSD_KERNEL_PRIVATE
-extern boolean_t thread_funnel_switch(int oldfnl, int newfnl);
+void sys_override_io_throttle(boolean_t enable_override);
-#include <libkern/libkern.h>
+#endif /* BSD_KERNEL_PRIVATE */
__END_DECLS
#endif /* !_SYS_SYSTM_H_ */
-
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