X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/593a1d5fd87cdf5b46dd5fcb84467b432cea0f91..143464d58d2bd6378e74eec636961ceb0d32fb91:/bsd/sys/user.h diff --git a/bsd/sys/user.h b/bsd/sys/user.h index 4aeb5c885..27ff9bdab 100644 --- a/bsd/sys/user.h +++ b/bsd/sys/user.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2012 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * @@ -73,17 +73,21 @@ #include #include #endif +#ifdef XNU_KERNEL_PRIVATE #include -#ifdef KERNEL_PRIVATE #include #endif #include /* XXX */ #include - + #ifdef KERNEL +#ifdef BSD_KERNEL_PRIVATE +#include /* for uu_kwe entry */ +#endif /* BSD_KERNEL_PRIVATE */ #ifdef __APPLE_API_PRIVATE #include +#if !defined(__LP64__) || defined(XNU_KERNEL_PRIVATE) /* * VFS context structure (part of uthread) */ @@ -92,106 +96,143 @@ struct vfs_context { kauth_cred_t vc_ucred; /* per thread credential */ }; +/* + * struct representing a document "tombstone" that's recorded + * when a thread manipulates files marked with a document-id. + * if the thread recreates the same item, this tombstone is + * used to preserve the document_id on the new file. + * + * It is a separate structure because of its size - we want to + * allocate it on demand instead of just stuffing it into the + * uthread structure. + */ +struct doc_tombstone { + struct vnode *t_lastop_parent; + struct vnode *t_lastop_item; + uint32_t t_lastop_parent_vid; + uint32_t t_lastop_item_vid; + uint64_t t_lastop_fileid; + uint64_t t_lastop_document_id; + unsigned char t_lastop_filename[NAME_MAX+1]; +}; + +#endif /* !__LP64 || XNU_KERNEL_PRIVATE */ + +#ifdef BSD_KERNEL_PRIVATE /* XXX Deprecated: xnu source compatability */ #define uu_ucred uu_context.vc_ucred -#ifdef BSD_KERNEL_PRIVATE +struct label; /* MAC label dummy struct */ + +#define MAXTHREADNAMESIZE 64 /* * Per-thread U area. */ struct uthread { /* syscall parameters, results and catches */ - user_addr_t uu_arg[8]; /* arguments to current system call */ + u_int64_t uu_arg[8]; /* arguments to current system call */ int *uu_ap; /* pointer to arglist */ int uu_rval[2]; /* thread exception handling */ - int uu_exception; mach_exception_code_t uu_code; /* ``code'' to trap */ mach_exception_subcode_t uu_subcode; + int uu_exception; char uu_cursig; /* p_cursig for exc. */ /* support for syscalls which use continuations */ - struct _select { - u_int32_t *ibits, *obits; /* bits to select on */ - uint nbytes; /* number of bytes in ibits and obits */ + union { + struct _select_data { u_int64_t abstime; + char * wql; int poll; int error; int count; - int kfcount; - char * wql; - } uu_select; /* saved state for select() */ - /* to support kevent continuations */ - union { - struct _kevent_scan { + } ss_select_data; + struct _kqueue_scan { kevent_callback_t call; /* per-event callback */ - kevent_continue_t cont; /* whole call continuation */ + kqueue_continue_t cont; /* whole call continuation */ uint64_t deadline; /* computed deadline for operation */ void *data; /* caller's private data */ - } ss_kevent_scan; /* saved state for kevent_scan() */ + } ss_kqueue_scan; /* saved state for kevent_scan() */ struct _kevent { - struct _kevent_scan scan;/* space for the generic data */ + struct _kqueue_scan scan;/* space for the generic data */ struct fileproc *fp; /* fileproc we hold iocount on */ int fd; /* filedescriptor for kq */ - register_t *retval; /* place to store return val */ + int32_t *retval; /* place to store return val */ user_addr_t eventlist; /* user-level event list address */ - size_t eventsize; /* user-level event size (LP64) */ + size_t eventsize; /* kevent or kevent64_s */ int eventcount; /* user-level event count */ int eventout; /* number of events output */ } ss_kevent; /* saved state for kevent() */ + + struct _kauth { + user_addr_t message; /* message in progress */ + } uu_kauth; + + struct ksyn_waitq_element uu_kwe; /* user for pthread synch */ } uu_kevent; - struct _kauth { - user_addr_t message; /* message in progress */ - } uu_kauth; + + struct _select { + u_int32_t *ibits, *obits; /* bits to select on */ + uint nbytes; /* number of bytes in ibits and obits */ + struct _select_data *data; + } uu_select; /* saved state for select() */ + /* internal support for continuation framework */ int (*uu_continuation)(int); int uu_pri; int uu_timo; caddr_t uu_wchan; /* sleeping thread wait channel */ const char *uu_wmesg; /* ... wait message */ - int uu_flag; - int uu_iopol_disk; /* disk I/O policy */ struct proc * uu_proc; + thread_t uu_thread; void * uu_userstate; wait_queue_set_t uu_wqset; /* cached across select calls */ size_t uu_allocsize; /* ...size of select cache */ + int uu_flag; sigset_t uu_siglist; /* signals pending for the thread */ sigset_t uu_sigwait; /* sigwait on this thread*/ sigset_t uu_sigmask; /* signal mask for the thread */ sigset_t uu_oldmask; /* signal mask saved before sigpause */ - struct vfs_context uu_context; /* thread + cred */ sigset_t uu_vforkmask; /* saved signal mask during vfork */ + struct vfs_context uu_context; /* thread + cred */ TAILQ_ENTRY(uthread) uu_list; /* List of uthreads in proc */ - struct kaudit_record *uu_ar; /* audit record */ + struct kaudit_record *uu_ar; /* audit record */ struct task* uu_aio_task; /* target task for async io */ - - /* network support for dlil layer locking */ - u_int32_t dlil_incremented_read; + lck_mtx_t *uu_mtx; + TAILQ_ENTRY(uthread) uu_throttlelist; /* List of uthreads currently throttled */ + void * uu_throttle_info; /* pointer to throttled I/Os info */ + int uu_on_throttlelist; int uu_lowpri_window; - size_t uu_devbsdunit; // to identify which device throttled I/Os are sent to + boolean_t uu_throttle_bc; - struct user_sigaltstack uu_sigstk; - int uu_defer_reclaims; + u_int32_t uu_network_marks; /* network control flow marks */ + + struct kern_sigaltstack uu_sigstk; vnode_t uu_vreclaims; - int uu_notrigger; /* XXX - flag for autofs */ vnode_t uu_cdir; /* per thread CWD */ + int uu_notrigger; /* XXX - flag for autofs */ int uu_dupfd; /* fd in fdesc_open/dupfdopen */ + int uu_defer_reclaims; #ifdef JOE_DEBUG int uu_iocount; int uu_vpindex; void * uu_vps[32]; + void * uu_pcs[32][10]; #endif #if CONFIG_DTRACE uint32_t t_dtrace_errno; /* Most recent errno */ - uint8_t t_dtrace_stop; /* indicates a DTrace-desired stop */ + siginfo_t t_dtrace_siginfo; + uint64_t t_dtrace_resumepid; /* DTrace's pidresume() pid */ + uint8_t t_dtrace_stop; /* indicates a DTrace desired stop */ uint8_t t_dtrace_sig; /* signal sent via DTrace's raise() */ - + union __tdu { struct __tds { uint8_t _t_dtrace_on; /* hit a fasttrap tracepoint */ @@ -202,7 +243,7 @@ struct uthread { uint8_t _t_dtrace_reg; /* modified register */ #endif } _tds; - unsigned long _t_dtrace_ft; /* bitwise or of these flags */ + u_int32_t _t_dtrace_ft; /* bitwise or of these flags */ } _tdu; #define t_dtrace_ft _tdu._t_dtrace_ft #define t_dtrace_on _tdu._tds._t_dtrace_on @@ -223,8 +264,14 @@ struct uthread { #if __sol64 || defined(__APPLE__) uint64_t t_dtrace_regv; /* DTrace saved reg from fasttrap */ #endif + void * t_dtrace_syscall_args; #endif /* CONFIG_DTRACE */ void * uu_threadlist; + char * pth_name; + struct label * uu_label; /* MAC label */ + + /* Document Tracking struct used to track a "tombstone" for a document */ + struct doc_tombstone *t_tombstone; }; typedef struct uthread * uthread_t; @@ -241,11 +288,13 @@ typedef struct uthread * uthread_t; #define UT_PASSIVE_IO 0x00000100 /* this thread issues passive I/O */ #define UT_PROCEXIT 0x00000200 /* this thread completed the proc exit */ #define UT_RAGE_VNODES 0x00000400 /* rapid age any vnodes created by this thread */ -#define UT_BACKGROUND 0x00000800 /* this thread is in background state */ +/* 0x00000800 unused, used to be UT_BACKGROUND */ +/* 0x00001000 unused, used to be UT_BACKGROUND_TRAFFIC_MGT */ #define UT_VFORK 0x02000000 /* thread has vfork children */ #define UT_SETUID 0x04000000 /* thread is settugid() */ #define UT_WASSETUID 0x08000000 /* thread was settugid() (in vfork) */ +#define UT_VFORKING 0x10000000 /* thread in vfork() syscall */ #endif /* BSD_KERNEL_PRIVATE */