58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
/*
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* Copyright 2007, Ingo Weinhold, bonefish@cs.tu-berlin.de. All rights reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _KERNEL_WAIT_FOR_OBJECTS_H
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#define _KERNEL_WAIT_FOR_OBJECTS_H
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#include <OS.h>
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#include <lock.h>
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struct select_sync;
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typedef struct select_info {
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struct select_info* next; // next in the object's list
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struct select_sync* sync;
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int32 events;
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uint16 selected_events;
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} select_info;
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typedef struct select_sync {
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int32 ref_count;
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sem_id sem;
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uint32 count;
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struct select_info* set;
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} select_sync;
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#define SELECT_FLAG(type) (1L << (type - 1))
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#define SELECT_OUTPUT_ONLY_FLAGS \
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(B_EVENT_ERROR | B_EVENT_DISCONNECTED | B_EVENT_INVALID)
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#define SELECT_TYPE_IS_OUTPUT_ONLY(type) \
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((SELECT_FLAG(type) & SELECT_OUTPUT_ONLY_FLAGS) != 0)
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern void put_select_sync(select_sync* sync);
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extern status_t notify_select_events(select_info* info, uint16 events);
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extern void notify_select_events_list(select_info* list, uint16 events);
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extern ssize_t _user_wait_for_objects(object_wait_info* userInfos,
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int numInfos, uint32 flags, bigtime_t timeout);
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#ifdef __cplusplus
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}
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#endif
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#endif // _KERNEL_WAIT_FOR_OBJECTS_H
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