pthread_internal.h [plain text]
#ifndef _SYS_PTHREAD_INTERNAL_H_
#define _SYS_PTHREAD_INTERNAL_H_
#undef pthread_mutexattr_t;
#include <kern/thread_call.h>
#define WORKITEM_SIZE 64
#define WORKQUEUE_NUMPRIOS 3
#define WORKQUEUE_OVERCOMMIT 0x10000
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;
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
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_nthreads;
uint32_t wq_thidlecount;
uint32_t wq_reqconc[WORKQUEUE_NUMPRIOS];
struct workitemlist wq_list[WORKQUEUE_NUMPRIOS];
uint32_t wq_list_bitmap;
TAILQ_HEAD(, threadlist) wq_thrunlist;
TAILQ_HEAD(, threadlist) wq_thidlelist;
uint32_t *wq_thactive_count[WORKQUEUE_NUMPRIOS];
uint32_t *wq_thscheduled_count[WORKQUEUE_NUMPRIOS];
uint64_t *wq_lastblocked_ts[WORKQUEUE_NUMPRIOS];
};
#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 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
#define WQOPS_QUEUE_ADD 1
#define WQOPS_QUEUE_REMOVE 2
#define WQOPS_THREAD_RETURN 4
#define WQOPS_THREAD_SETCONC 8
#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;
#endif