xnu-2050.18.24.tar.gz

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

diff --git a/bsd/sys/pthread_internal.h b/bsd/sys/pthread_internal.h
index dc68c04c2cffcd22f85f271fff8ab2e1acc393e9..b22de04d862a79c60404ae84cc04ba6076457478 100644 (file)
--- a/bsd/sys/pthread_internal.h
+++ b/bsd/sys/pthread_internal.h
@@ -29,12 +29,32 @@
 #ifndef _SYS_PTHREAD_INTERNAL_H_
 #define _SYS_PTHREAD_INTERNAL_H_
 
-#undef pthread_mutexattr_t;
-
+#include <sys/user.h>
 #include <kern/thread_call.h>
 
-#define WORKITEM_SIZE 64
-#define WORKQUEUE_NUMPRIOS 3
+struct ksyn_waitq_element {
+       TAILQ_ENTRY(ksyn_waitq_element) kwe_list;       /* link to other list members */
+       void *          kwe_kwqqueue;                   /* queue blocked on */
+       uint32_t        kwe_flags;                      /* flags */
+       uint32_t        kwe_lockseq;                    /* the sequence of the entry */
+       uint32_t        kwe_count;                      /* upper bound on number of matches still pending */
+       uint32_t        kwe_psynchretval;               /* thread retval */
+       void            *kwe_uth;                       /* uthread */
+};
+typedef struct ksyn_waitq_element * ksyn_waitq_element_t;
+
+/* kew_flags defns */
+#define KWE_THREAD_INWAIT       1
+#define KWE_THREAD_PREPOST      2
+#define KWE_THREAD_BROADCAST    4
+
+
+#define WORKQUEUE_HIGH_PRIOQUEUE    0       /* high priority queue */
+#define WORKQUEUE_DEFAULT_PRIOQUEUE 1       /* default priority queue */
+#define WORKQUEUE_LOW_PRIOQUEUE     2       /* low priority queue */
+#define WORKQUEUE_BG_PRIOQUEUE      3       /* background priority queue */
+
+#define WORKQUEUE_NUMPRIOS 4
 
 #define WORKQUEUE_OVERCOMMIT   0x10000
 
@@ -42,7 +62,6 @@ struct threadlist {
        TAILQ_ENTRY(threadlist) th_entry;
        thread_t th_thread;
        int      th_flags;
-       uint32_t th_suspended;
        uint16_t th_affinity_tag;
        uint8_t  th_priority;
        uint8_t  th_policy;
@@ -57,41 +76,33 @@ struct threadlist {
 #define TH_LIST_BLOCKED        0x04
 #define TH_LIST_SUSPENDED      0x08
 #define TH_LIST_BUSY           0x10
+#define TH_LIST_NEED_WAKEUP    0x20
+#define TH_LIST_CONSTRAINED    0x40
 
-struct workitem {
-       TAILQ_ENTRY(workitem) wi_entry;
-       user_addr_t wi_item;
-       uint32_t wi_affinity;
-};
-
-struct workitemlist {
-       TAILQ_HEAD(, workitem) wl_itemlist;
-       TAILQ_HEAD(, workitem) wl_freelist;
-};
 
 struct workqueue {
-       struct workitem wq_array[WORKITEM_SIZE * WORKQUEUE_NUMPRIOS];
         proc_t         wq_proc;
         vm_map_t       wq_map;
         task_t         wq_task;
         thread_call_t  wq_atimer_call;
        int             wq_flags;
        int             wq_lflags;
-        int            wq_itemcount;
        uint64_t        wq_thread_yielded_timestamp;
        uint32_t        wq_thread_yielded_count;
        uint32_t        wq_timer_interval;
         uint32_t       wq_affinity_max;
         uint32_t       wq_threads_scheduled;
+       uint32_t        wq_constrained_threads_scheduled;
        uint32_t        wq_nthreads;
         uint32_t       wq_thidlecount;
-       uint32_t        wq_reqconc[WORKQUEUE_NUMPRIOS];   /* requested concurrency for each priority level */
-       struct workitemlist  wq_list[WORKQUEUE_NUMPRIOS]; /* priority based item list */
-       uint32_t        wq_list_bitmap;
+       uint32_t        wq_reqcount;
        TAILQ_HEAD(, threadlist) wq_thrunlist;
        TAILQ_HEAD(, threadlist) wq_thidlelist;
-        uint32_t       *wq_thactive_count[WORKQUEUE_NUMPRIOS];
-        uint32_t       *wq_thscheduled_count[WORKQUEUE_NUMPRIOS];
+       uint16_t        wq_requests[WORKQUEUE_NUMPRIOS];
+       uint16_t        wq_ocrequests[WORKQUEUE_NUMPRIOS];
+       uint16_t        wq_reqconc[WORKQUEUE_NUMPRIOS];                 /* requested concurrency for each priority level */
+        uint16_t       *wq_thscheduled_count[WORKQUEUE_NUMPRIOS];
+        uint32_t       *wq_thactive_count[WORKQUEUE_NUMPRIOS];         /* must be uint32_t since we OSAddAtomic on these */
         uint64_t       *wq_lastblocked_ts[WORKQUEUE_NUMPRIOS];
 };
 #define WQ_LIST_INITED         0x01
@@ -100,6 +111,8 @@ struct workqueue {
 
 #define WQL_ATIMER_BUSY                0x01
 #define WQL_ATIMER_WAITING     0x02
+#define WQL_EXCEEDED_CONSTRAINED_THREAD_LIMIT    0x04
+#define WQL_EXCEEDED_TOTAL_THREAD_LIMIT          0x08
 
 
 #define WQ_VECT_SET_BIT(vector, bit)   \
@@ -121,20 +134,23 @@ struct workqueue {
 
 /* workq_kernreturn commands */
 #define WQOPS_QUEUE_ADD 1
-#define WQOPS_QUEUE_REMOVE 2
+#define WQOPS_QUEUE_REMOVE_OBSOLETE 2 
 #define WQOPS_THREAD_RETURN 4
 #define WQOPS_THREAD_SETCONC  8
+#define WQOPS_QUEUE_NEWSPISUPP  0x10   /* this is to check for newer SPI support */
+#define WQOPS_QUEUE_REQTHREADS  0x20   /* request number of threads of a prio */
 
 #define PTH_DEFAULT_STACKSIZE 512*1024
 #define PTH_DEFAULT_GUARDSIZE 4*1024
 #define MAX_PTHREAD_SIZE 64*1024
 
-void workqueue_exit(struct proc *);
-
-void pthread_init(void);
 extern lck_grp_attr_t   *pthread_lck_grp_attr;
 extern lck_grp_t    *pthread_lck_grp;
 extern lck_attr_t   *pthread_lck_attr;
 
+void workqueue_mark_exiting(struct proc *);
+void workqueue_exit(struct proc *);
+void pthread_init(void);
+void psynch_zoneinit(void);
 #endif /* _SYS_PTHREAD_INTERNAL_H_ */