/*
- * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#endif
#include <sys/vm.h> /* XXX */
#include <sys/sysctl.h>
-
+
#ifdef KERNEL
+#ifdef BSD_KERNEL_PRIVATE
+#include <sys/pthread_internal.h> /* for uu_kwe entry */
+#endif /* BSD_KERNEL_PRIVATE */
#ifdef __APPLE_API_PRIVATE
#include <sys/eventvar.h>
-
#if !defined(__LP64__) || defined(XNU_KERNEL_PRIVATE)
/*
* VFS context structure (part of uthread)
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
+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 */
- int *uu_ap; /* pointer to arglist */
+ u_int64_t uu_arg[8]; /* arguments to current system call */
int uu_rval[2];
+ unsigned int syscall_code; /* current syscall code */
/* 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;
- int poll;
- int error;
- int count;
- int kfcount;
char * wql;
- } uu_select; /* saved state for select() */
- /* to support kevent continuations */
- union {
+ int count;
+ struct select_nocancel_args *args; /* original syscall arguments */
+ int32_t *retval; /* place to store return val */
+ } ss_select_data;
struct _kqueue_scan {
kevent_callback_t call; /* per-event callback */
kqueue_continue_t cont; /* whole call continuation */
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 */
+
+ struct _waitid_data {
+ struct waitid_nocancel_args *args; /* original syscall arguments */
+ int32_t *retval; /* place to store return val */
+ } uu_waitid_data;
+
+ struct _wait4_data {
+ struct wait4_nocancel_args *args; /* original syscall arguments */
+ int32_t *retval; /* place to store return val */
+ } uu_wait4_data;
} uu_kevent;
- struct _kauth {
- user_addr_t message; /* message in progress */
- } uu_kauth;
+
+ /* Persistent memory allocations across system calls */
+ struct _select {
+ u_int32_t *ibits, *obits; /* bits to select on */
+ uint nbytes; /* number of bytes in ibits and obits */
+ } 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 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;
- int uu_lowpri_window;
+ 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;
+ boolean_t uu_throttle_bc;
+
+ u_int32_t uu_network_marks; /* network control flow marks */
struct kern_sigaltstack uu_sigstk;
- int uu_defer_reclaims;
vnode_t uu_vreclaims;
- int uu_notrigger; /* XXX - flag for autofs */
vnode_t uu_cdir; /* per thread CWD */
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
- siginfo_t t_dtrace_siginfo;
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 */
#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;
- TAILQ_ENTRY(uthread) uu_mtxlist; /* psynch waiters list*/
- uint32_t uu_lockseq; /* seq on arrival */
- uint32_t uu_psynchretval; /* pmtx retval */
- void * uu_kwqqueue; /* queue blocked on */
+ 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;
#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 */
projects / apple / xnu.git / blobdiff