/usr/include/corelinux/EventSemaphore.hpp is in libcorelinux-dev 0.4.32-7.4ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 | #if !defined(__EVENTSEMAPHORE_HPP)
#define __EVENTSEMAPHORE_HPP
/*
CoreLinux++
Copyright (C) 1999,2000 CoreLinux Consortium
The CoreLinux++ Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The CoreLinux++ Library Library is distributed in the hope that it will
be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#if !defined(__COMMON_HPP)
#include <Common.hpp>
#endif
#if !defined(__SEMAPHORE_HPP)
#include <Semaphore.hpp>
#endif
namespace corelinux
{
DECLARE_CLASS( EventSemaphore );
/**
EventSemaphore implements a way to queue its caller until a certain
event takes place.
*/
class EventSemaphore : public Semaphore
{
public:
//
// Constructors and destructors
//
/**
Default constructor requires the identifier of the
semaphore in the semaphore group
@param aGroup pointer to the owning SemaphoreGroup
@param aIdentifier The identifier for the
Semaphore from the SemaphoreGroup
@param aLimit the maximum number of listeners.
@arg aLimit < 0 : infinite number of listeners,
@arg aLimit >= 0 : finite number of listeners
@param Recursive true if recursion enabled
@param Balking true if balking enabled
*/
EventSemaphore
(
SemaphoreGroupPtr aGroup,
SemaphoreIdentifierRef aIdentifier,
Counter aLimit,
bool aRecursionFlag = true,
bool aBalkingFlag = false
) throw ( NullPointerException );
/// Virtual Destructor
virtual ~EventSemaphore( void );
//
// Accessors
//
/// Check if semaphore instance is locked
virtual bool isLocked( void ) ;
//
// Mutators
//
/**
Indicate owner commitment to trigger the event
after a finite amount of time.
*/
SemaphoreOperationStatus post( void )
throw( SemaphoreException );
/**
Wait for the event associated with this semaphore to
take place. Block if the event has not occured
*/
virtual SemaphoreOperationStatus lockWithWait( void )
throw( SemaphoreException );
/**
Check if the associated event has taken place.
*/
virtual SemaphoreOperationStatus lockWithNoWait( void )
throw( SemaphoreException );
/// Request the semaphore but timeout if not available
// virtual SemaphoreOperationStatus lockWithTimeOut( Timer )
// throw(SemaphoreException) = 0;
/// Signal the observer that an event has occured.
virtual SemaphoreOperationStatus release( void )
throw( SemaphoreException );
/**
Set the maximum number of listeners allowed on this
semaphore.
@param aLimit the maximum number of listeners.
@arg aLimit < 0: infinite number of listeners,
@arg aLimit >= 0: finite number of listeners,
*/
virtual void setLimit ( Counter aLimit ) throw ( SemaphoreException );
/**
Get the maximum number of listeners of this semaphore.
*/
virtual Counter getLimit ( void ) const;
protected:
//
// Constructors
//
/// Default constructor throws assert
EventSemaphore( void ) throw( Assertion );
/// Copy constructor throws assertion
EventSemaphore( EventSemaphoreCref ) throw( Assertion );
//
// Operator overloads
//
/// Assignment operator throws assertion
EventSemaphoreRef operator=( EventSemaphoreCref )
throw( Assertion );
private:
/// # of threads which are currently listening to this event
Counter theNumListeners;
/// Max number of allowed listeners
Counter theMaxListeners;
};
}
#endif // if !defined(__EVENTSEMAPHORE_HPP)
/*
Common rcs information do not modify
$Author: dulimart $
$Revision: 1.7 $
$Date: 2000/11/15 22:32:06 $
$Locker: $
*/
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