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[FEA] Add manual call policy according with FIFO and timestamp. #107

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Continue the work from PR #38 . Originally created by @jacobperron

Add policies to store the most recent received messages (based on their timestamp or on the order of arrival); These policies do not call any callback automatically. It is up to the programmer to call the call method when it is time to process the information.
These policies are meant to be used in networks where information is processed periodically.

The existing change requests in #38 are resolved.

UT passed, Please review @clalancette

@ZhenshengLee
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@clalancette @gbiggs friendly ping for updates.

@@ -0,0 +1,131 @@
/*********************************************************************
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please use hpp extension instead of h.

Comment on lines +43 to +47
#include "message_filters/connection.h"
#include "message_filters/message_traits.h"
#include "message_filters/null_types.h"
#include "message_filters/signal9.h"
#include "message_filters/synchronizer.h"
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use hpp includes.

* It is up to the programmer to call #call when it is time to process the information. This policy class
* is meant to be used in networks where information is processed periodically.
*/
template<typename M0, typename M1, typename M2 = NullType, typename M3 = NullType, typename M4 = NullType,
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use variadoc templates like in this PR https://github.com/ros2/message_filters/pull/93/files

In the others files as well

/*********************************************************************
* Software License Agreement (BSD License)
*
* Copyright (c) 2009, Willow Garage, Inc.
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in this correct? you can use 2024 and Open Robotics

header.stamp = stamp;
}
};
typedef std::shared_ptr<Msg> MsgPtr;
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include <memory>

ASSERT_TRUE(helper.e1_ == evt_2);
ASSERT_TRUE(helper.e2_ == evt_2_hl);
ASSERT_TRUE(helper.e3_ == evt_3);
//
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remove

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4 participants