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# Copyright (C) 2013-2019 Ruby-GNOME2 Project Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
module Gst
class Bus
alias_method :add_watch_full, :add_watch
def add_watch(priority=GLib::PRIORITY_DEFAULT, &block)
add_watch_full(priority, &block)
end
def sync_handler(&block)
@sync_handler = lambda do |bus, message|
begin
block.call(bus, message)
rescue Exception
$stderr.puts("An exception is raised in " +
"#{self.class}\##{__method__} callback: #{block}")
$stderr.puts("#{$!.class}: #{$!.message}")
$stderr.puts($@)
BusSyncReply::DROP
end
end
set_sync_handler(&@sync_handler)
end
private :set_sync_handler
alias_method :poll_raw, :poll
def poll(*args)
events = nil
timeout = nil
n_args = args.size
case n_args
when 0
when 1
case args[0]
when Hash
options = args[0]
events = options[:events]
timeout = options[:timeout]
when Integer
timeout = args[0]
else
events = args[0]
end
when 2
events, timeout = args
else
message = "wrong number of arguments "
message << "(given #{n_args}, expected 0..2)"
raise ArgumentError, message
end
poll_raw(events || :any,
timeout || CLOCK_TIME_NONE)
end
end
end
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