X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/6601e61aa18bf4f09af135ff61fc7f4771d23b06..db6096698656d32db7df630594bd9617ee54f828:/bsd/sys/systm.h diff --git a/bsd/sys/systm.h b/bsd/sys/systm.h index e81bed439..263e9223b 100644 --- a/bsd/sys/systm.h +++ b/bsd/sys/systm.h @@ -1,23 +1,29 @@ /* - * 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 */ /*- @@ -100,7 +106,6 @@ #ifdef BSD_KERNEL_PRIVATE #include #include -#include #endif #include __BEGIN_DECLS @@ -112,8 +117,8 @@ __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 */ @@ -124,13 +129,16 @@ extern int nchrdev; /* number of entries in cdevsw */ #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 */ @@ -139,38 +147,63 @@ extern funnel_t * kernel_flock; #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); @@ -179,52 +212,39 @@ 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); -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_ */ -