/src/resiprocate/rutil/FdSetIOObserver.hxx

Source
#ifndef FdSetIOObserver_Include_Guard
#define FdSetIOObserver_Include_Guard

namespace resip
{
class FdSet;

/**
   An interface class for elements that use an FdSet to watch for IO. This is in 
   contrast to an element that uses event-driven IO.
*/
class FdSetIOObserver
{
   public:
      FdSetIOObserver(){}
      virtual ~FdSetIOObserver(){}

      /**
         Add any FDs that we are interested in watching to an fdset, with the 
         understanding that a select() call will be made immediately after.
         @param fdset The FdSet to be augmented
      */
      virtual void buildFdSet(FdSet& fdset) = 0;

      /**
         Returns the maximum timeout this object is willing to tolerate on the 
         select call that is to be made, to prevent starvation of work that is 
         not IO-based.
         @return The maximum select() timeout to be used, in milliseconds. To 
            indicate that this object does not care, return UINT_MAX. 0 
            indicates that a poll select() should be performed.
      */
      virtual unsigned int getTimeTillNextProcessMS() = 0;

      /**
         Called once select() returns; this allows this object to inspect which 
         of its FDs are ready, and perform any necessary IO with them.
         @param fdset The FdSet after the call to select().
      */
      virtual void process(FdSet& fdset) = 0;
};
}

#endif


/* ====================================================================
 * The Vovida Software License, Version 1.0 
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 
 * 3. The names "VOCAL", "Vovida Open Communication Application Library",
 *    and "Vovida Open Communication Application Library (VOCAL)" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact vocal@vovida.org.
 *
 * 4. Products derived from this software may not be called "VOCAL", nor
 *    may "VOCAL" appear in their name, without prior written
 *    permission of Vovida Networks, Inc.
 * 
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
 * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL VOVIDA
 * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
 * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 * 
 * ====================================================================
 * 
 * This software consists of voluntary contributions made by Vovida
 * Networks, Inc. and many individuals on behalf of Vovida Networks,
 * Inc.  For more information on Vovida Networks, Inc., please see
 * <http://www.vovida.org/>.
 *
 */

Line	Count	Source
1		#ifndef FdSetIOObserver_Include_Guard
2		#define FdSetIOObserver_Include_Guard
3
4		namespace resip
5		{
6		class FdSet;
7
8		/**
9		An interface class for elements that use an FdSet to watch for IO. This is in
10		contrast to an element that uses event-driven IO.
11		*/
12		class FdSetIOObserver
13		{
14		public:
15	0	FdSetIOObserver(){}
16	0	virtual ~FdSetIOObserver(){}
17
18		/**
19		Add any FDs that we are interested in watching to an fdset, with the
20		understanding that a select() call will be made immediately after.
21		@param fdset The FdSet to be augmented
22		*/
23		virtual void buildFdSet(FdSet& fdset) = 0;
24
25		/**
26		Returns the maximum timeout this object is willing to tolerate on the
27		select call that is to be made, to prevent starvation of work that is
28		not IO-based.
29		@return The maximum select() timeout to be used, in milliseconds. To
30		indicate that this object does not care, return UINT_MAX. 0
31		indicates that a poll select() should be performed.
32		*/
33		virtual unsigned int getTimeTillNextProcessMS() = 0;
34
35		/**
36		Called once select() returns; this allows this object to inspect which
37		of its FDs are ready, and perform any necessary IO with them.
38		@param fdset The FdSet after the call to select().
39		*/
40		virtual void process(FdSet& fdset) = 0;
41		};
42		}
43
44		#endif
45
46
47		/* ====================================================================
48		* The Vovida Software License, Version 1.0
49		*
50		* Redistribution and use in source and binary forms, with or without
51		* modification, are permitted provided that the following conditions
52		* are met:
53		*
54		* 1. Redistributions of source code must retain the above copyright
55		* notice, this list of conditions and the following disclaimer.
56		*
57		* 2. Redistributions in binary form must reproduce the above copyright
58		* notice, this list of conditions and the following disclaimer in
59		* the documentation and/or other materials provided with the
60		* distribution.
61		*
62		* 3. The names "VOCAL", "Vovida Open Communication Application Library",
63		* and "Vovida Open Communication Application Library (VOCAL)" must
64		* not be used to endorse or promote products derived from this
65		* software without prior written permission. For written
66		* permission, please contact vocal@vovida.org.
67		*
68		* 4. Products derived from this software may not be called "VOCAL", nor
69		* may "VOCAL" appear in their name, without prior written
70		* permission of Vovida Networks, Inc.
71		*
72		* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
73		* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
74		* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
75		* NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL VOVIDA
76		* NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
77		* IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
78		* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
79		* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
80		* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
81		* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
82		* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
83		* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
84		* DAMAGE.
85		*
86		* ====================================================================
87		*
88		* This software consists of voluntary contributions made by Vovida
89		* Networks, Inc. and many individuals on behalf of Vovida Networks,
90		* Inc. For more information on Vovida Networks, Inc., please see
91		* <http://www.vovida.org/>.
92		*
93		*/

Coverage Report

Created: 2026-02-13 06:31