1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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13 * The Original Code is the Netscape Portable Runtime (NSPR).
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17 * Copyright (C) 1998-2000 Netscape Communications Corporation. All
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37 * Description: This file is the API defined to allow for DCE (aka POSIX)
38 * thread emulation in an NSPR environment. It is not the
39 * intent that this be a fully supported API.
42 #if !defined(PRPDCE_H)
52 #define _PR_NAKED_CV_LOCK (PRLock*)0xdce1dce1
55 ** Test and acquire a lock.
57 ** If the lock is acquired by the calling thread, the
58 ** return value will be PR_SUCCESS. If the lock is
59 ** already held, by another thread or this thread, the
60 ** result will be PR_FAILURE.
62 NSPR_API(PRStatus) PRP_TryLock(PRLock *lock);
65 ** Create a naked condition variable
67 ** A "naked" condition variable is one that is not created bound
68 ** to a lock. The CV created with this function is the only type
69 ** that may be used in the subsequent "naked" condition variable
70 ** operations (see PRP_NakedWait, PRP_NakedNotify, PRP_NakedBroadcast);
72 NSPR_API(PRCondVar*) PRP_NewNakedCondVar(void);
75 ** Destroy a naked condition variable
77 ** Destroy the condition variable created by PR_NewNakedCondVar.
79 NSPR_API(void) PRP_DestroyNakedCondVar(PRCondVar *cvar);
82 ** Wait on a condition
84 ** Wait on the condition variable 'cvar'. It is asserted that
85 ** the lock protecting the condition 'lock' is held by the
86 ** calling thread. If more time expires than that declared in
87 ** 'timeout' the condition will be notified. Waits can be
88 ** interrupted by another thread.
90 ** NB: The CV ('cvar') must be one created using PR_NewNakedCondVar.
92 NSPR_API(PRStatus) PRP_NakedWait(
93 PRCondVar *cvar, PRLock *lock, PRIntervalTime timeout);
96 ** Notify a thread waiting on a condition
98 ** Notify the condition specified 'cvar'.
100 ** NB: The CV ('cvar') must be one created using PR_NewNakedCondVar.
102 NSPR_API(PRStatus) PRP_NakedNotify(PRCondVar *cvar);
105 ** Notify all threads waiting on a condition
107 ** Notify the condition specified 'cvar'.
109 ** NB: The CV ('cvar') must be one created using PR_NewNakedCondVar.
111 NSPR_API(PRStatus) PRP_NakedBroadcast(PRCondVar *cvar);
115 #endif /* PRPDCE_H */