-# FIXME: add license like in C files
-
+# Task-related bindings to ruby */
+#
+# Copyright 2010. The SimGrid Team. All right reserved. */
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the license (GNU LGPL) which comes with this package. */
+# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
require 'simgrid_ruby'
require 'thread'
-$DEBUG = false # This is a Global Variable Useful for MSG::debugging
-
-###########################################################################
-# Class Semaphore
-###########################################################################
-class MySemaphore
- Thread.abort_on_exception = true
- attr_accessor :permits
-
-
- def initialize (permits = 0)
- @permits = permits
- end
-
- def acquire(mutex,cv)
-
- raise "Interrupted Thread " if (!Thread.current.alive?)
- mutex.synchronize {
- while @permits <= 0
-
- cv.wait(mutex)
-
- end
- @permits = @permits - 1
- cv.signal
- }
-
- end
-
- def release(mutex,cv)
- mutex.synchronize{
- @permits += 1
- cv.signal
- }
- end
-end
#######################################
-# Another Semaphore
+# Semaphore
#######################################
class Semaphore
end
def acquire
- MSG::debug(Thread.current.to_s+" acquires "+self.to_s)
Thread.critical = true
if (@counter -= 1) < 0
+ MSG::debug(Thread.current.to_s+" acquires "+self.to_s+". That's blocking.")
@waiting_list.push(Thread.current)
Thread.stop
+ else
+ MSG::debug(Thread.current.to_s+" acquires "+self.to_s+". It was free.")
end
self
ensure
end
def release
- MSG::debug(Thread.current.to_s+" releases "+self.to_s)
Thread.critical = true
begin
if (@counter += 1) <= 0
t = @waiting_list.shift
t.wakeup if t
- MSG::debug("Wakeup "+t.to_s)
+ MSG::debug(Thread.current.to_s+" releases "+self.to_s+". Wakeup "+t.to_s)
else
- MSG::debug("Nobody to wakeup")
+ MSG::debug(Thread.current.to_s+" releases "+self.to_s+". Nobody to wakeup")
end
rescue ThreadError
retry
@@nextProcessId = 0
# Attributes
- attr_reader :bind, :id, :name, :pargs ,:properties# Read only
+ attr_reader :name, :pargs ,:properties # Read only
def initialize(*args)
super(){
- raise "Bad Number Of arguments to create a Ruby Process (name,args,prop) " if args.size < 3
+ raise "Bad number of arguments to create a Ruby process. Expected (name,args,prop) " if args.size < 3
-# @cv = ConditionVariable.new
-# @mutex = Mutex.new
@schedBegin = Semaphore.new(0)
@schedEnd = Semaphore.new(0)
@id = @@nextProcessId
}
end
- # main
def main(args)
# To be overriden by childs
raise("You must define a main() function in your process, containing the code of this process")
end
- # Start : To keep the process alive and waiting via semaphore
def start()
- @schedBegin.acquire()
- # execute the main code of the process
- MSG::debug("Begin execution")
+ @schedBegin.acquire
+ MSG::debug("Let's execute the main() of the Ruby process")
main(@pargs)
-# processExit(self) # Exit the Native Process
- @schedEnd.release()
+ @schedEnd.release
+ MSG::debug("Released my schedEnd, bailing out")
+ processExit(self) # Exit the Native Process
+
end
-
- # FIXME: useless, there is an attribute for bind (or the attribute is useless)
- # Get Bind
def getBind()
return @bind
end
-
- # Set Binds FIXME: same
+
def setBind(bind)
@bind = bind
end
def unschedule()
- @schedEnd.release()
- @schedBegin.acquire()
+ @schedEnd.release
+ @schedBegin.acquire
end
- def schedule()
- @schedBegin.release()
- @schedEnd.acquire()
+ def schedule()
+ @schedBegin.release
+ @schedEnd.acquire
end
def pause()
def getHost()
processGetHost(self)
end
-
+
# The Rest of Methods !!! To be Continued ... FIXME: what's missing?
end
-
############################################
# Task Extend from the native Class RbTask
############################################
super(self,mailbox)
end
-# FIXME : this methode should be associated to the class !! it reurn a task
- def receive(mailbox)
- super(self,mailbox)
- end
-
def source
super(self)
end
def listenFromHost(t_alias,host)
super(t_alias,host)
end
-
end
-
-############################################
+####################################################
# Host Extend from the native Class RbHost
-############################################
+####################################################
class MSG::Host < MSG::RbHost
-
def getByName(name)
super(name)
end
def number
super()
end
-
end
-
#########################
# Main chunck
#########################
-MSG.init(ARGV)
+MSG.init(ARGV)
\ No newline at end of file
