* Copyright (c) 2013 Apple Computer, Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
-#ifndef _IPC_IPC_IMPORTANCE_H_
-#define _IPC_IPC_IMPORTANCE_H_
+#ifndef _IPC_IPC_IMPORTANCE_H_
+#define _IPC_IPC_IMPORTANCE_H_
#include <mach/mach_types.h>
#include <mach/mach_voucher_types.h>
*/
struct ipc_importance_elem {
- uint32_t iie_bits; /* type and refs */
- mach_voucher_attr_value_reference_t iie_made; /* references given to vouchers */
- queue_head_t iie_kmsgs; /* list of kmsgs inheriting from this */
- uint32_t iie_externcnt; /* number of externalized boosts */
- uint32_t iie_externdrop; /* number of those dropped already */
+ uint32_t iie_bits; /* type and refs */
+ mach_voucher_attr_value_reference_t iie_made; /* references given to vouchers */
+ queue_head_t iie_kmsgs; /* list of kmsgs inheriting from this */
+ uint32_t iie_externcnt; /* number of externalized boosts */
+ uint32_t iie_externdrop; /* number of those dropped already */
#define IIE_REF_DEBUG 0
#if IIE_REF_DEBUG
- uint32_t iie_refs_added; /* all refs added via all means */
- uint32_t iie_refs_dropped; /* all refs dropped via all means */
- uint32_t iie_kmsg_refs_added; /* all refs added by kmsgs taking a ref */
- uint32_t iie_kmsg_refs_inherited; /* kmsg refs consumed by a new inherit */
- uint32_t iie_kmsg_refs_coalesced; /* kmsg refs coalesced into an existing inherit */
- uint32_t iie_kmsg_refs_dropped; /* kmsg refs dropped by not accepting msg importance */
- uint32_t iie_task_refs_added; /* refs added by a task reference call */
- uint32_t iie_task_refs_added_inherit_from; /* task references added by inherit from */
- uint32_t iie_task_refs_added_transition; /* task references added by imp transition code */
- uint32_t iie_task_refs_self_added; /* task refs added by self-boost */
- uint32_t iie_task_refs_inherited; /* task refs consumed by a new inherit */
- uint32_t iie_task_refs_coalesced; /* task refs coalesced into an existing inherit */
- uint32_t iie_task_refs_dropped; /* all refs dropped via all task means */
+ uint32_t iie_refs_added; /* all refs added via all means */
+ uint32_t iie_refs_dropped; /* all refs dropped via all means */
+ uint32_t iie_kmsg_refs_added; /* all refs added by kmsgs taking a ref */
+ uint32_t iie_kmsg_refs_inherited; /* kmsg refs consumed by a new inherit */
+ uint32_t iie_kmsg_refs_coalesced; /* kmsg refs coalesced into an existing inherit */
+ uint32_t iie_kmsg_refs_dropped; /* kmsg refs dropped by not accepting msg importance */
+ uint32_t iie_task_refs_added; /* refs added by a task reference call */
+ uint32_t iie_task_refs_added_inherit_from; /* task references added by inherit from */
+ uint32_t iie_task_refs_added_transition; /* task references added by imp transition code */
+ uint32_t iie_task_refs_self_added; /* task refs added by self-boost */
+ uint32_t iie_task_refs_inherited; /* task refs consumed by a new inherit */
+ uint32_t iie_task_refs_coalesced; /* task refs coalesced into an existing inherit */
+ uint32_t iie_task_refs_dropped; /* all refs dropped via all task means */
#endif
};
-#define IIE_TYPE_MASK 0x80000000 /* Just the high bit for now */
-#define IIE_TYPE_TASK 0x00000000 /* Element is a task element */
-#define IIE_TYPE_INHERIT 0x80000000 /* Element inherits from a previous element */
-#define IIE_TYPE(e) ((e)->iie_bits & IIE_TYPE_MASK)
+#define IIE_TYPE_MASK 0x80000000 /* Just the high bit for now */
+#define IIE_TYPE_TASK 0x00000000 /* Element is a task element */
+#define IIE_TYPE_INHERIT 0x80000000 /* Element inherits from a previous element */
+#define IIE_TYPE(e) ((e)->iie_bits & IIE_TYPE_MASK)
-#define IIE_REFS_MASK 0x7FFFFFFF /* Mask to extract references */
-#define IIE_REFS_MAX 0x7FFFFFFF
-#define IIE_REFS(e) ((e)->iie_bits & IIE_REFS_MASK)
+#define IIE_REFS_MASK 0x7FFFFFFF /* Mask to extract references */
+#define IIE_REFS_MAX 0x7FFFFFFF
+#define IIE_REFS(e) ((e)->iie_bits & IIE_REFS_MASK)
-#define IIE_EXTERN(e) ((e)->iie_externcnt - (e)->iie_externdrop)
+#define IIE_EXTERN(e) ((e)->iie_externcnt - (e)->iie_externdrop)
#if !IIE_REF_DEBUG
-#define ipc_importance_reference_internal(elem) \
- (hw_atomic_add(&(elem)->iie_bits, 1) & IIE_REFS_MASK)
+#define ipc_importance_reference_internal(elem) \
+ (os_atomic_inc(&(elem)->iie_bits, relaxed) & IIE_REFS_MASK)
-#define ipc_importance_release_internal(elem) \
- (hw_atomic_sub(&(elem)->iie_bits, 1) & IIE_REFS_MASK)
+#define ipc_importance_release_internal(elem) \
+ (os_atomic_dec(&(elem)->iie_bits, relaxed) & IIE_REFS_MASK)
#endif
struct ipc_importance_task {
- struct ipc_importance_elem iit_elem; /* common element parts */
- task_t iit_task; /* task associated with */
- queue_head_t iit_inherits; /* list of inherit elems hung off this */
- queue_t iit_updateq; /* queue chained on for task policy updates */
- queue_chain_t iit_updates; /* link on update chain */
- queue_chain_t iit_props; /* link on propagation chain */
- uint64_t iit_updatetime; /* timestamp of our last policy update request */
- uint64_t iit_transitions;/* total number of boost transitions (lifetime) */
- uint32_t iit_assertcnt; /* net number of boost assertions (internal, external and legacy) */
- uint32_t iit_legacy_externcnt; /* Legacy external boost count */
- uint32_t iit_legacy_externdrop; /* Legacy external boost drop count */
- uint32_t iit_receiver:1, /* the task can receive importance boost */
- iit_denap:1, /* the task can be awaked from App Nap */
- iit_donor:1, /* the task always sends boosts regardless of boost status */
- iit_live_donor:1, /* the task temporarily sends boosts regardless of boost status */
- iit_updatepolicy:1, /* enqueue for policy update at the end of propagation */
- iit_reserved:3, /* reserved for future use */
- iit_filelocks:24; /* number of file lock boosts */
+ struct ipc_importance_elem iit_elem; /* common element parts */
+ task_t iit_task; /* task associated with */
+ queue_head_t iit_inherits; /* list of inherit elems hung off this */
+ queue_t iit_updateq; /* queue chained on for task policy updates */
+ queue_chain_t iit_updates; /* link on update chain */
+ queue_chain_t iit_props; /* link on propagation chain */
+ uint64_t iit_updatetime; /* timestamp of our last policy update request */
+ uint64_t iit_transitions;/* total number of boost transitions (lifetime) */
+ uint32_t iit_assertcnt; /* net number of boost assertions (internal, external and legacy) */
+ uint32_t iit_legacy_externcnt; /* Legacy external boost count */
+ uint32_t iit_legacy_externdrop; /* Legacy external boost drop count */
+ uint32_t iit_receiver:1, /* the task can receive importance boost */
+ iit_denap:1, /* the task can be awaked from App Nap */
+ iit_donor:1, /* the task always sends boosts regardless of boost status */
+ iit_live_donor:1, /* the task temporarily sends boosts regardless of boost status */
+ iit_updatepolicy:1, /* enqueue for policy update at the end of propagation */
+ iit_reserved:3, /* reserved for future use */
+ iit_filelocks:24; /* number of file lock boosts */
#if DEVELOPMENT || DEBUG
- char iit_procname[20]; /* name of proc */
- uint32_t iit_bsd_pid; /* pid of proc creating this iit */
- queue_chain_t iit_allocation; /* link on global iit allocation chain */
+ char iit_procname[20]; /* name of proc */
+ uint32_t iit_bsd_pid; /* pid of proc creating this iit */
+ queue_chain_t iit_allocation; /* link on global iit allocation chain */
#endif
-
};
-#define iit_bits iit_elem.iie_bits
-#define iit_made iit_elem.iie_made
-#define iit_kmsgs iit_elem.iie_kmsgs
-#define iit_externcnt iit_elem.iie_externcnt
-#define iit_externdrop iit_elem.iie_externdrop
+#define iit_bits iit_elem.iie_bits
+#define iit_made iit_elem.iie_made
+#define iit_kmsgs iit_elem.iie_kmsgs
+#define iit_externcnt iit_elem.iie_externcnt
+#define iit_externdrop iit_elem.iie_externdrop
-#define IIT_REFS_MAX IIE_REFS_MAX
-#define IIT_REFS(t) IIE_REFS(&(t)->iit_elem)
-#define IIT_EXTERN(t) IIE_EXTERN(&(t)->iit_elem)
-#define IIT_LEGACY_EXTERN(t) ((t)->iit_legacy_externcnt - (t)->iit_legacy_externdrop)
+#define IIT_REFS_MAX IIE_REFS_MAX
+#define IIT_REFS(t) IIE_REFS(&(t)->iit_elem)
+#define IIT_EXTERN(t) IIE_EXTERN(&(t)->iit_elem)
+#define IIT_LEGACY_EXTERN(t) ((t)->iit_legacy_externcnt - (t)->iit_legacy_externdrop)
#if !IIE_REF_DEBUG
-#define ipc_importance_task_reference_internal(task_imp) \
+#define ipc_importance_task_reference_internal(task_imp) \
(ipc_importance_reference_internal(&(task_imp)->iit_elem))
-#define ipc_importance_task_release_internal(task_imp) \
+#define ipc_importance_task_release_internal(task_imp) \
(assert(1 < IIT_REFS(task_imp)), ipc_importance_release_internal(&(task_imp)->iit_elem))
#endif
typedef int iit_update_type_t;
-#define IIT_UPDATE_HOLD ((iit_update_type_t)1)
-#define IIT_UPDATE_DROP ((iit_update_type_t)2)
+#define IIT_UPDATE_HOLD ((iit_update_type_t)1)
+#define IIT_UPDATE_DROP ((iit_update_type_t)2)
struct ipc_importance_inherit {
- struct ipc_importance_elem iii_elem; /* common element partss */
- boolean_t iii_donating; /* is this donating importance */
- uint32_t iii_depth; /* nesting depth */
- ipc_importance_task_t iii_to_task; /* donating to */
- ipc_importance_elem_t iii_from_elem; /* other elem contributing */
- queue_chain_t iii_inheritance; /* inherited from link */
+ struct ipc_importance_elem iii_elem; /* common element partss */
+ boolean_t iii_donating; /* is this donating importance */
+ uint32_t iii_depth; /* nesting depth */
+ ipc_importance_task_t iii_to_task; /* donating to */
+ ipc_importance_elem_t iii_from_elem; /* other elem contributing */
+ queue_chain_t iii_inheritance; /* inherited from link */
};
-#define iii_bits iii_elem.iie_bits
-#define iii_made iii_elem.iie_made
-#define iii_kmsgs iii_elem.iie_kmsgs
-#define iii_externcnt iii_elem.iie_externcnt
-#define iii_externdrop iii_elem.iie_externdrop
-#define III_REFS_MAX IIE_REFS_MAX
-#define III_REFS(i) IIE_REFS(&(i)->iii_elem)
-#define III_EXTERN(i) IIE_EXTERN(&(i)->iii_elem)
-
-#define III_DEPTH_RESET 0x80000000
-#define III_DEPTH_MASK 0x000000FF
-#define III_DEPTH(i) ((i)->iii_depth & III_DEPTH_MASK)
-#define III_DEPTH_MAX 32 /* maximum inherit->inherit chain depth */
-
-#define ipc_importance_inherit_reference_internal(inherit) \
+#define iii_bits iii_elem.iie_bits
+#define iii_made iii_elem.iie_made
+#define iii_kmsgs iii_elem.iie_kmsgs
+#define iii_externcnt iii_elem.iie_externcnt
+#define iii_externdrop iii_elem.iie_externdrop
+#define III_REFS_MAX IIE_REFS_MAX
+#define III_REFS(i) IIE_REFS(&(i)->iii_elem)
+#define III_EXTERN(i) IIE_EXTERN(&(i)->iii_elem)
+
+#define III_DEPTH_RESET 0x80000000
+#define III_DEPTH_MASK 0x000000FF
+#define III_DEPTH(i) ((i)->iii_depth & III_DEPTH_MASK)
+#define III_DEPTH_MAX 32 /* maximum inherit->inherit chain depth */
+
+#define ipc_importance_inherit_reference_internal(inherit) \
(ipc_importance_reference_internal(&(inherit)->iii_elem))
__BEGIN_DECLS
/* prepare importance attributes for sending */
extern boolean_t ipc_importance_send(
- ipc_kmsg_t kmsg,
- mach_msg_option_t option);
+ ipc_kmsg_t kmsg,
+ mach_msg_option_t option);
/* receive importance attributes from message */
extern void ipc_importance_receive(
- ipc_kmsg_t kmsg,
- mach_msg_option_t option);
+ ipc_kmsg_t kmsg,
+ mach_msg_option_t option);
/* undo receive of importance attributes from message */
extern void ipc_importance_unreceive(
- ipc_kmsg_t kmsg,
- mach_msg_option_t option);
+ ipc_kmsg_t kmsg,
+ mach_msg_option_t option);
/* clean importance attributes out of destroyed message */
extern void ipc_importance_clean(ipc_kmsg_t kmsg);
extern void task_importance_update_owner_info(task_t task);
#endif
-#if XNU_KERNEL_PRIVATE
+#if XNU_KERNEL_PRIVATE
#define TASK_IMP_LIST_DONATING_PIDS 0x1
extern int task_importance_list_pids(task_t task, int flags, char *pid_list, unsigned int max_count);
#endif
__END_DECLS
#endif /* MACH_KERNEL_PRIVATE */
-
-#endif /* _IPC_IPC_IMPORTANCE_H_ */
+
+#endif /* _IPC_IPC_IMPORTANCE_H_ */
projects / apple / xnu.git / blobdiff