/usr/include/corelinux/EventSemaphoreGroup.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.
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#define __EVENTSEMAPHOREGROUP_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(__SEMAPHOREGROUP_HPP)
#include <SemaphoreGroup.hpp>
#endif
namespace corelinux
{
DECLARE_CLASS( EventSemaphoreGroup );
/**
A EventSemaphoreGroup is an extension to the SemaphoreGroup for creating
only EventSemaphore types. Default behavior for creating semaphores via
the SemaphoreGroup interface is to create a Event and autolock it.
There is no option for not autolocking it.
*/
class EventSemaphoreGroup : public SemaphoreGroup
{
public:
/**
Default constructor creates a private group semaphores
with access for OWNER_ALL. Maximum limit of listeners
will be set to "infinity"
@param aSemCount Number of semaphores in group
@param aRightSet access control for group
@exception Assertion if aSemCount < 1
@exception SemaphoreException if kernel group create
call fails.
@see AccessRights
*/
EventSemaphoreGroup
(
Short aSemCount,
Int aRightSet = OWNER_ALL
) throw(Assertion,SemaphoreException);
/**
Constructor to open or create a semaphore group with a
specific identifier. Maximum limit of listeners will
be set to "infinity".
@param aSemCount Number of semaphores in group, this
only has meaning used if failOnExist = true
@param aGID valid group identifier either through a
system call or via another ipc mechanism
@param aRightSet Specifies access control for group
@param dist indicates how to treat the conditions that
the group may meet in the request:
@arg CREATE_OR_REUSE indicates that the caller doesn't
care
@arg FAIL_IF_EXISTS indicates the attempt was for a
create
@arg FAIL_IF_NOTEXISTS indicates the attempt was for a
open
@exception Assertion if aCount < 1
@exception SemaphoreException for described states
*/
EventSemaphoreGroup
(
Short aSemCount,
SemaphoreGroupIdentifierCref aGID,
Int aRightSet,
CreateDisposition disp=FAIL_IF_EXISTS
) throw(Assertion,SemaphoreException);
/**
Constructor to open or create a semaphore group by
name. Maximum limit of listeners is set to "infinity"
@param aSemCount Short Number of semaphores in group,
this only has meaning used if failOnExist = true
@param aName pointer to Group name
@param aRightSet specifies access control for group
@param disp indicates how to treat the conditions that
the group may meet in the request:
@arg CREATE_OR_REUSE indicates that the caller doesn't
care
@arg FAIL_IF_EXISTS indicates the attempt was for a
create
@arg FAIL_IF_NOTEXISTS indicates the attempt was for a
open
@exception Assertion if aCount < 1 or aCount > system
defined maximum for group
@exception SemaphoreException for described states
*/
EventSemaphoreGroup
(
Short aSemCount,
CharCptr aName,
Int aRightSet,
CreateDisposition disp=FAIL_IF_EXISTS
) throw(Assertion,SemaphoreException);
/// Virtual destructor
virtual ~EventSemaphoreGroup( void );
//
// Accessors
//
//
// Factory methods
//
/**
Create a default EventSemaphore
@return AbstractSemaphore aSem - pointer to created
semaphore
@exception SemaphoreException if no sems left in group
*/
virtual AbstractSemaphorePtr createSemaphore( void )
throw( SemaphoreException ) ;
/**
Create an EventSemaphore and set the maximum number of
listeners allowed on this semaphore.
@param aLimit maximum number of listeners
@return AbstractSemaphore aSem - pointer to created
semaphore
@exception SemaphoreException if no sems left in group
*/
virtual AbstractSemaphorePtr createSemaphore( Counter aLimit )
throw( SemaphoreException ) ;
/**
Create or open (use) a specific EventSemphore
@param aIdentifier identifies which semphore id to
create or attempt to use
@param disp indicates how to treat the conditions that
the group may meet in the request:
@arg CREATE_OR_REUSE indicates that the caller doesn't
care
@arg FAIL_IF_EXISTS indicates the attempt was for a
create
@arg FAIL_IF_NOTEXISTS indicates the attempt was for a
open
@param Recursive to allow same thread multiple locks
@param Recursive allow lock to recurse
@param Balking to allow the semaphore to balk
@return AbstractSemaphore aSem - pointer to created or
opened semaphore
@exception SemaphoreException if the disposition
disagrees with the semaphore state, or if it is a
erroneous identifier
*/
virtual AbstractSemaphorePtr createSemaphore
(
SemaphoreIdentifierRef aIdentifier,
CreateDisposition disp = CREATE_OR_REUSE,
bool Recursive = false,
bool Balking = false
) throw( SemaphoreException ) ;
/**
Create or open (use) a specific EventSemphore and set
the maximum number of listeners to the specified
count.
@param aIdentifier identifies which semphore id to
create or attempt to use
@param aLimit maximum number of listeners for
EventSemaphore
@param disp indicates how to treat the conditions that
the group may meet in the request:
@arg CREATE_OR_REUSE indicates that the caller doesn't
care
@arg FAIL_IF_EXISTS indicates the attempt was for a
create
@arg FAIL_IF_NOTEXISTS indicates the attempt was for a
open
@param Recursive to allow same thread multiple locks
@param Balking to allow the semaphore to balk
@return AbstractSemaphore aSem - pointer to created or
opened semaphore
@exception SemaphoreException if the disposition
disagrees with the semaphore state, or if it is a
erroneous identifier
*/
virtual AbstractSemaphorePtr createSemaphore
(
SemaphoreIdentifierRef aIdentifier,
Counter aLimit,
CreateDisposition disp = CREATE_OR_REUSE,
bool Recursive = false,
bool Balking = false
) throw( SemaphoreException );
/**
Create or open (use) a specific EventSemaphore
identified by its name
@param aName identifies which semphore id to create or
attempt to use
@param disp indicates how to treat the conditions that
the group may meet in the request:
@arg CREATE_OR_REUSE indicates that the caller doesn't
care
@arg FAIL_IF_EXISTS indicates the attempt was for a
create
@arg FAIL_IF_NOTEXISTS indicates the attempt was for a
open
@param Recursive to allow same thread multiple locks
@param Balking to allow the semaphore to balk
@return AbstractSemaphore aSem - pointer to created or
opened semaphore
@exception SemaphoreException if the disposition
disagrees with the semaphore state, or if it is a
erroneous identifier
*/
virtual AbstractSemaphorePtr createSemaphore
(
std::string aName,
CreateDisposition disp = CREATE_OR_REUSE,
bool Recursive=false,
bool Balking = false
) throw( SemaphoreException ) ;
/**
Create or open (use) a specific EventSemaphore @param
aName identifies which semphore id to create or
attempt to use
@param aLimit maximum number of listeners for
EventSemaphore
@param disp indicates how to treat the conditions that
the group may meet in the request:
@arg CREATE_OR_REUSE indicates that the caller doesn't
care
@arg FAIL_IF_EXISTS indicates the attempt was for a
create
@arg FAIL_IF_NOTEXISTS indicates the attempt was for a
open
@param Recursive to allow same thread multiple locks
@param Balking to allow the semaphore to balk
@return AbstractSemaphore aSem - pointer to created or
opened semaphore
@exception SemaphoreException if the disposition
disagrees with the semaphore state, or if it is a
erroneous identifier
*/
virtual AbstractSemaphorePtr createSemaphore
(
std::string aName,
Counter aLimit,
CreateDisposition disp = CREATE_OR_REUSE,
bool Recursive=false,
bool Balking = false
) throw( SemaphoreException ) ;
/**
Destroys a previously created EventSemaphore
@param aPtr pointer of semaphore to destroy
@exception SemaphoreException if semaphore does not
belong to this group or if already destroyed.
*/
virtual void destroySemaphore( AbstractSemaphorePtr aPtr )
throw( SemaphoreException ) ;
protected:
//
// Constructors
//
/// Default constructor not allowed
EventSemaphoreGroup( void ) throw( Assertion );
/// Copy constructor not allowed
EventSemaphoreGroup( EventSemaphoreGroupCref )
throw( Assertion );
//
// Operator overloadings
//
// Assignment operator not allowed
EventSemaphoreGroupRef operator=( EventSemaphoreGroupCref )
throw( Assertion );
//
// EventGroup methods
//
// Protected method for resolving event between CSA and local
AbstractSemaphorePtr resolveSemaphore
(
SemaphoreIdentifierRef aIdentifier,
Short aSemId,
CreateDisposition aDisp,
bool aRecurse,
bool aBalk,
Counter aMaxValue = 1
) throw( SemaphoreException ) ;
private:
/// Local share counts
SemaphoreShares theUsedMap;
};
}
#endif // if !defined(__EVENTSEMAPHOREGROUP_HPP)
/*
Common rcs information do not modify
$Author: dulimart $
$Revision: 1.6 $
$Date: 2000/11/13 15:20:25 $
$Locker: $
*/
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