/*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_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 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.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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.
+ * 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@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*-
#ifdef BSD_KERNEL_PRIVATE
#include <sys/tty.h>
#include <sys/vm.h>
-#include <sys/linker_set.h>
#endif
#include <sys/proc.h>
__BEGIN_DECLS
__END_DECLS
#ifdef BSD_KERNEL_PRIVATE
-extern char version[]; /* system version */
-extern char copyright[]; /* system copyright */
+extern char version[]; /* system version */
+extern const char copyright[]; /* system copyright */
extern int boothowto; /* reboot flags, from console subsystem */
#endif /* BSD_KERNEL_PRIVATE */
#ifdef KERNEL_PRIVATE
-#define NO_FUNNEL 0
-#define KERNEL_FUNNEL 1
extern int securelevel; /* system security level */
extern dev_t rootdev; /* root device */
extern struct vnode *rootvp; /* vnode equivalent to above */
+
+#ifdef XNU_KERNEL_PRIVATE
+#define NO_FUNNEL 0
+#define KERNEL_FUNNEL 1
extern funnel_t * kernel_flock;
+#endif /* XNU_KERNEL_PRIVATE */
#endif /* KERNEL_PRIVATE */
#define getenv_int(a,b) (*b = 0)
#define KASSERT(exp,msg)
-
/*
* General function declarations.
*/
__BEGIN_DECLS
-int nullop(void);
-int nulldev(void);
-int enoioctl(void);
-int enxio(void);
-int eopnotsupp(void);
-int einval(void);
#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 *, ...);
-void realitexpire(void *);
+void ttyprintf(struct tty *, const char *, ...) __printflike(2, 3);
+void realitexpire(struct proc *);
int hzto(struct timeval *tv);
-#endif /* __APPLE_API_UNSTABLE */
-
-void *hashinit(int count, int type, u_long *hashmask);
-
void tablefull(const char *);
-
int kvprintf(char const *, void (*)(int, void*), void *, int,
__darwin_va_list);
+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 vslock(user_addr_t addr, user_size_t len);
+int vsunlock(user_addr_t addr, user_size_t len, int dirtied);
+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 syscall_exit_funnelcheck(void);
+void throttle_info_get_last_io_time(mount_t mp, struct timeval *tv);
+void update_last_io_time(mount_t mp);
+#endif /* BSD_KERNEL_PRIVATE */
-void uprintf(const char *, ...);
-
+#ifdef KERNEL_PRIVATE
+void timeout(void (*)(void *), void *arg, int ticks);
+void untimeout(void (*)(void *), void *arg);
+int bsd_hostname(char *, int, int*);
+#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 copywithin(void *saddr, void *daddr, size_t len);
-
int fubyte(user_addr_t addr);
int fuibyte(user_addr_t addr);
int subyte(user_addr_t addr, int byte);
long fuiword(user_addr_t addr);
int suword(user_addr_t addr, long word);
int suiword(user_addr_t addr, long word);
-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);
#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 *);
-#ifdef KERNEL_PRIVATE
-void timeout(void (*)(void *), void *arg, int ticks);
-void untimeout(void (*)(void *), void *arg);
-#endif /* KERNEL_PRIVATE */
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 *);
+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);
+void throttle_set_thread_io_policy(int policy);
+
+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_legacy_process_incr(void);
+void throttle_legacy_process_decr(void);
-#ifdef BSD_KERNEL_PRIVATE
-int vslock(user_addr_t addr, user_size_t len);
-int vsunlock(user_addr_t addr, user_size_t len, int dirtied);
-int clone_system_shared_regions(int shared_regions_active,
- int chain_regions,
- int base_vnode);
-
-extern kern_return_t bsd_exception(int, exception_data_type_t codes[], int);
-extern void bsdinit_task(void);
-void bsd_hardclock(boolean_t usermode, caddr_t pc, int numticks);
-void gatherstats(boolean_t usermode, caddr_t pc);
-
-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);
-#endif /* BSD_KERNEL_PRIVATE */
-
+/*
+ * '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);
__END_DECLS
#endif /* !_SYS_SYSTM_H_ */
-
projects / apple / xnu.git / blobdiff