osfmk/kern/block_hint.h

   1 /*
   2  * Copyright (c) 2000-2016 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #ifndef _KERN_BLOCK_HINT_H_
  30 #define _KERN_BLOCK_HINT_H_
  31
  32 typedef enum thread_snapshot_wait_flags {
  33         kThreadWaitNone                 = 0x00,
  34         kThreadWaitKernelMutex          = 0x01,
  35         kThreadWaitPortReceive          = 0x02,
  36         kThreadWaitPortSetReceive       = 0x03,
  37         kThreadWaitPortSend             = 0x04,
  38         kThreadWaitPortSendInTransit    = 0x05,
  39         kThreadWaitSemaphore            = 0x06,
  40         kThreadWaitKernelRWLockRead     = 0x07,
  41         kThreadWaitKernelRWLockWrite    = 0x08,
  42         kThreadWaitKernelRWLockUpgrade  = 0x09,
  43         kThreadWaitUserLock             = 0x0a,
  44         kThreadWaitPThreadMutex         = 0x0b,
  45         kThreadWaitPThreadRWLockRead    = 0x0c,
  46         kThreadWaitPThreadRWLockWrite   = 0x0d,
  47         kThreadWaitPThreadCondVar       = 0x0e,
  48         kThreadWaitParkedWorkQueue      = 0x0f,
  49         kThreadWaitWorkloopSyncWait     = 0x10,
  50         kThreadWaitOnProcess            = 0x11,
  51         kThreadWaitSleepWithInheritor   = 0x12,
  52 } __attribute__((packed)) block_hint_t;
  53
  54 _Static_assert(sizeof(block_hint_t) <= sizeof(short),
  55     "block_hint_t must fit within a short");
  56
  57 #ifdef XNU_KERNEL_PRIVATE
  58
  59 struct waitq;
  60 struct stackshot_thread_waitinfo;
  61 typedef struct stackshot_thread_waitinfo thread_waitinfo_t;
  62
  63 /* Used for stackshot_thread_waitinfo_unsafe */
  64 extern void kdp_lck_mtx_find_owner(struct waitq * waitq, event64_t event, thread_waitinfo_t *waitinfo);
  65 extern void kdp_sema_find_owner(struct waitq * waitq, event64_t event, thread_waitinfo_t *waitinfo);
  66 extern void kdp_mqueue_send_find_owner(struct waitq * waitq, event64_t event, thread_waitinfo_t *waitinfo);
  67 extern void kdp_mqueue_recv_find_owner(struct waitq * waitq, event64_t event, thread_waitinfo_t *waitinfo);
  68 extern void kdp_ulock_find_owner(struct waitq * waitq, event64_t event, thread_waitinfo_t *waitinfo);
  69 extern void kdp_rwlck_find_owner(struct waitq * waitq, event64_t event, thread_waitinfo_t *waitinfo);
  70 extern void kdp_pthread_find_owner(thread_t thread, thread_waitinfo_t *waitinfo);
  71 extern void *kdp_pthread_get_thread_kwq(thread_t thread);
  72 extern void kdp_workloop_sync_wait_find_owner(thread_t thread, event64_t event, thread_waitinfo_t *waitinfo);
  73 extern void kdp_wait4_find_process(thread_t thread, event64_t event, thread_waitinfo_t *waitinfo);
  74 extern void kdp_sleep_with_inheritor_find_owner(struct waitq * waitq, __unused event64_t event, thread_waitinfo_t * waitinfo);
  75 extern void kdp_turnstile_fill_tsinfo(struct turnstile *ts, thread_turnstileinfo_t *tsinfo);
  76
  77 #endif /* XNU_KERNEL_PRIVATE */
  78
  79 #endif /* !_KERN_BLOCK_HINT_H_ */