xnu-1699.24.8.tar.gz

[apple/xnu.git] / bsd / sys / user.h

diff --git a/bsd/sys/user.h b/bsd/sys/user.h
index ed9b465430e83c136ec286b80a7884060f1e9140..4a59aa866fa784c83acac40d9b06983fcdff3e34 100644 (file)
--- 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) 2000-2010 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -79,12 +79,15 @@
 #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)
@@ -107,7 +110,7 @@ struct vfs_context {
  
 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];
 
@@ -124,7 +127,7 @@ struct uthread {
                        int poll;
                        int error;
                        int count;
-                       int kfcount;
+                       int _reserved1; // UNUSED: avoid changing size for now
                        char * wql;
        } uu_select;                    /* saved state for select() */
        /* to support kevent continuations */
@@ -156,7 +159,9 @@ struct uthread {
        caddr_t uu_wchan;                       /* sleeping thread wait channel */
        const char *uu_wmesg;                   /* ... wait message */
        int uu_flag;
+#if CONFIG_EMBEDDED
        int uu_iopol_disk;                      /* disk I/O policy */
+#endif /* CONFIG_EMBEDDED */
        struct proc * uu_proc;
        void * uu_userstate;
        wait_queue_set_t uu_wqset;                      /* cached across select calls */
@@ -172,12 +177,12 @@ struct uthread {
 
        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;
+       boolean_t       uu_throttle_isssd;
+       boolean_t       uu_throttle_bc;
        void    *       uu_throttle_info;       /* pointer to throttled I/Os info */
 
        struct kern_sigaltstack uu_sigstk;
@@ -191,12 +196,14 @@ struct uthread {
         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 */
+        uint8_t         t_dtrace_stop;  /* indicates a DTrace desired stop */
         uint8_t         t_dtrace_sig;   /* signal sent via DTrace's raise() */
+        uint64_t       t_dtrace_resumepid; /* DTrace's pidresume() pid */
 
         union __tdu {
                 struct __tds {
@@ -232,10 +239,7 @@ struct uthread {
 #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 ksyn_waitq_element  uu_kwe;              /* user for pthread synch */
 };
 
 typedef struct uthread * uthread_t;
@@ -252,7 +256,10 @@ 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 */       
+#if CONFIG_EMBEDDED
 #define UT_BACKGROUND  0x00000800      /* this thread is in background state */        
+#endif /* !CONFIG_EMBEDDED */
+#define UT_BACKGROUND_TRAFFIC_MGT      0x00001000 /* background traffic is regulated */
 
 #define        UT_VFORK        0x02000000      /* thread has vfork children */
 #define        UT_SETUID       0x04000000      /* thread is settugid() */