/usr/include/ncbi-vdb/kproc/cond.h is in libncbi-vdb-dev 2.8.1+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* PUBLIC DOMAIN NOTICE
* National Center for Biotechnology Information
*
* This software/database is a "United States Government Work" under the
* terms of the United States Copyright Act. It was written as part of
* the author's official duties as a United States Government employee and
* thus cannot be copyrighted. This software/database is freely available
* to the public for use. The National Library of Medicine and the U.S.
* Government have not placed any restriction on its use or reproduction.
*
* Although all reasonable efforts have been taken to ensure the accuracy
* and reliability of the software and data, the NLM and the U.S.
* Government do not and cannot warrant the performance or results that
* may be obtained by using this software or data. The NLM and the U.S.
* Government disclaim all warranties, express or implied, including
* warranties of performance, merchantability or fitness for any particular
* purpose.
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* Please cite the author in any work or product based on this material.
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* ===========================================================================
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*/
#ifndef _h_kproc_cond_
#define _h_kproc_cond_
#ifndef _h_kproc_extern_
#include <kproc/extern.h>
#endif
#ifndef _h_klib_defs_
#include <klib/defs.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/*--------------------------------------------------------------------------
* forwards
*/
struct KLock;
struct timeout_t;
/*--------------------------------------------------------------------------
* KCondition
* a POSIX-style condition object
* ( requires an external lock object )
*
* usage: the user first acquires an external lock. then, depending upon
* the operation, will either test for a condition or establish it, where
* the former involves the potential to wait for a signal and the latter
* to generate a signal using the external lock for blocking.
*/
typedef struct KCondition KCondition;
/* Make
* create a condition
*/
KPROC_EXTERN rc_t CC KConditionMake ( KCondition **cond );
/* AddRef
* Release
*/
KPROC_EXTERN rc_t CC KConditionAddRef ( const KCondition *self );
KPROC_EXTERN rc_t CC KConditionRelease ( const KCondition *self );
/* Wait
* block on external lock until signalled
*/
KPROC_EXTERN rc_t CC KConditionWait ( KCondition *self, struct KLock *lock );
KPROC_EXTERN rc_t CC KConditionTimedWait ( KCondition *self, struct KLock *lock, struct timeout_t *tm );
/* Signal
* signal waiting threads
* awaken at most a single thread
*
* NB - external lock used for synchronization must be locked by current thread
*/
KPROC_EXTERN rc_t CC KConditionSignal ( KCondition *self );
/* Broadcast
* signal waiting threads
* awaken all waiting thread
*
* NB - external lock used for synchronization must be locked by current thread
*/
KPROC_EXTERN rc_t CC KConditionBroadcast ( KCondition *self );
#ifdef __cplusplus
}
#endif
#endif /* _h_kproc_cond_ */
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