* duplicate definitions that used to exist in both projects, when separate.
*/
-/* workq_kernreturn commands */
-#define WQOPS_THREAD_RETURN 4
-#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 WQOPS_QUEUE_REQTHREADS2 0x30 /* request a number of threads in a given priority bucket */
-
-/* flag values for reuse field in the libc side _pthread_wqthread */
-#define WQ_FLAG_THREAD_PRIOMASK 0x0000ffff
-#define WQ_FLAG_THREAD_PRIOSHIFT (8ull)
-#define WQ_FLAG_THREAD_OVERCOMMIT 0x00010000 /* thread is with overcommit prio */
-#define WQ_FLAG_THREAD_REUSE 0x00020000 /* thread is being reused */
-#define WQ_FLAG_THREAD_NEWSPI 0x00040000 /* the call is with new SPIs */
-
-/* These definitions are only available to the kext, to avoid bleeding constants and types across the boundary to
- * the userspace library.
- */
-#ifdef KERNEL
-
-/* These defines come from kern/thread.h but are XNU_KERNEL_PRIVATE so do not get
- * exported to kernel extensions.
- */
-#define SCHED_CALL_BLOCK 0x1
-#define SCHED_CALL_UNBLOCK 0x2
-
-// kwe_state
-enum {
- KWE_THREAD_INWAIT = 1,
- KWE_THREAD_PREPOST,
- KWE_THREAD_BROADCAST,
-};
-
-/* old workq priority scheme */
-
-#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_NUM_BUCKETS 6
-
-/* wq_max_constrained_threads = max(64, N_CPU * WORKQUEUE_CONSTRAINED_FACTOR)
- * This used to be WORKQUEUE_NUM_BUCKETS + 1 when NUM_BUCKETS was 4, yielding
- * N_CPU * 5. When NUM_BUCKETS changed, we decided that the limit should
- * not change. So the factor is now always 5.
- */
-#define WORKQUEUE_CONSTRAINED_FACTOR 5
-
-#define WORKQUEUE_OVERCOMMIT 0x10000
-
-struct threadlist {
- TAILQ_ENTRY(threadlist) th_entry;
- thread_t th_thread;
- int th_flags;
- uint8_t th_priority;
- uint8_t th_policy;
- struct workqueue *th_workq;
- mach_vm_size_t th_stacksize;
- mach_vm_size_t th_allocsize;
- mach_vm_offset_t th_stackaddr;
- mach_port_name_t th_thport;
-};
-#define TH_LIST_INITED 0x01
-#define TH_LIST_RUNNING 0x02
-#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 workqueue {
- 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;
- uint64_t wq_thread_yielded_timestamp;
- uint32_t wq_thread_yielded_count;
- uint32_t wq_timer_interval;
- uint32_t wq_max_concurrency;
- uint32_t wq_threads_scheduled;
- uint32_t wq_constrained_threads_scheduled;
- uint32_t wq_nthreads;
- uint32_t wq_thidlecount;
- uint32_t wq_reqcount;
- TAILQ_HEAD(, threadlist) wq_thrunlist;
- TAILQ_HEAD(, threadlist) wq_thidlelist;
- uint16_t wq_requests[WORKQUEUE_NUM_BUCKETS];
- uint16_t wq_ocrequests[WORKQUEUE_NUM_BUCKETS];
- uint16_t wq_reqconc[WORKQUEUE_NUM_BUCKETS]; /* requested concurrency for each priority level */
- uint16_t wq_thscheduled_count[WORKQUEUE_NUM_BUCKETS];
- uint32_t wq_thactive_count[WORKQUEUE_NUM_BUCKETS] __attribute__((aligned(4))); /* must be uint32_t since we OSAddAtomic on these */
- uint64_t wq_lastblocked_ts[WORKQUEUE_NUM_BUCKETS] __attribute__((aligned(8)));
-};
-#define WQ_LIST_INITED 0x01
-#define WQ_ATIMER_RUNNING 0x02
-#define WQ_EXITING 0x04
-
-#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) \
- vector[(bit) / 32] |= (1 << ((bit) % 32))
-
-#define WQ_VECT_CLEAR_BIT(vector, bit) \
- vector[(bit) / 32] &= ~(1 << ((bit) % 32))
-
-#define WQ_VECT_TEST_BIT(vector, bit) \
- vector[(bit) / 32] & (1 << ((bit) % 32))
-
-#define WORKQUEUE_MAXTHREADS 512
-#define WQ_YIELDED_THRESHOLD 2000
-#define WQ_YIELDED_WINDOW_USECS 30000
-#define WQ_STALLED_WINDOW_USECS 200
-#define WQ_REDUCE_POOL_WINDOW_USECS 5000000
-#define WQ_MAX_TIMER_INTERVAL_USECS 50000
-
-#endif // KERNEL
+// Sometimes something gets passed a bucket number and we need a way to express
+// that it's actually the event manager. Use the (0)th bucket for that.
+#define WORKQ_THREAD_QOS_MIN (THREAD_QOS_MAINTENANCE)
+#define WORKQ_THREAD_QOS_MAX (THREAD_QOS_LAST - 1)
+#define WORKQ_THREAD_QOS_CLEANUP (THREAD_QOS_LEGACY)
+#define WORKQ_THREAD_QOS_MANAGER (THREAD_QOS_LAST) // outside of MIN/MAX
+
+#define WORKQ_NUM_QOS_BUCKETS (WORKQ_THREAD_QOS_MAX)
+#define WORKQ_NUM_BUCKETS (WORKQ_THREAD_QOS_MAX + 1)
+#define WORKQ_IDX(qos) ((qos) - 1) // 0 based index
+
+// magical `nkevents` values for _pthread_wqthread
+#define WORKQ_EXIT_THREAD_NKEVENT (-1)
#endif // _WORKQUEUE_INTERNAL_H_
projects / apple / libpthread.git / blobdiff