Open Mash Cross Reference
mash/tcl/indiva/imgr/mob-session.tcl

   # mob-session.tcl --
   #
   #   Media object represetation of a session.
   #
   # Copyright (c) 1996-2002 The Regents of the University of California.
   # All rights reserved.
   #
   # Redistribution and use in source and binary forms, with or without
   # modification, are permitted provided that the following conditions are met:
  #
  # A. Redistributions of source code must retain the above copyright notice,
  #    this list of conditions and the following disclaimer.
  # B. 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.
  # C. Neither the names of the copyright holders nor the names of its
  #    contributors may be used to endorse or promote products derived from this
  #    software without specific prior written permission.
  #
  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
  # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  # ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR
  # ANY DIRECT, 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.
  #
  # @(#) $Header: /usr/mash/src/repository/mash/mash-1/tcl/indiva/imgr/mob-session.tcl,v 1.6 2002/07/04 18:39:16 weitsang Exp $
  
  import MobConference
  import MobDirectory
  
  #-
  # Class:
  #   MobSession
  #
  
  Class MobSession -superclass MobDirectory
  
  MobSession instproc init {name args} {
      # First, make sure the parent is a conference.
      if {[file extension [file dirname $name]] != [MobConference get_ext]} {
          error "Session can only be created in a conference."
      }
  
      # Set some default attributes.
      $self set_attribute "addr" "224.4.4.4"
      $self set_attribute "port" "44444"
      $self set_attribute "ttl"  "8"
      $self set_attribute "fmt"  "h261"
      $self set_attribute "size" "80x60"
      $self set_attribute "fps"  "15"
      $self set_attribute "bps"  "256000"
      $self set_attribute "q"    "80"
  
      eval $self next $name $args
  }
  
  
  MobSession public get_type {} {
      return "session"
  }
  
  MobSession public spec {} {
      return "[$self get_attribute addr]/[$self get_attribute port]/[$self get_attribute ttl]"
  }
  
  MobSession proc get_ext {} {
      return ".ses"
  }
  
  MobSession instproc share_writable {} {
      return 1
  }