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bug 954: Changing the simulation time resolution does not work well with attributes

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v.3 Responding to code review comments

https://codereview.appspot.com/6821106/
This commit is contained in:
Peter D. Barnes, Jr.
2013-08-14 16:52:06 -07:00
parent d1ce1beb67
commit 85e9ba3b48
7 changed files with 415 additions and 65 deletions
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15
doc/tutorial/source/conceptual-overview.rst
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@@ -340,6 +340,21 @@ Just as in any C++ program, you need to define a main function that will be
the first function run. There is nothing at all special here. Your
|ns3| script is just a C++ program.
The next line sets the time resolution to one nanosecond, which happens
to be the default value:
::
Time::SetResolution (Time::NS);
The resolution is the smallest time value that can be represented (as well as
the smallest representable difference between two time values).
You can change the resolution exactly once. The mechanism enabling this
flexibility is somewhat memory hungry, so once the resolution has been
set explicitly we release the memory, preventing further updates. (If
you don't set the resolution explicitly, it will default to one nanosecond,
and the memory will be released when the simulation starts.)
The next two lines of the script are used to enable two logging components that
are built into the Echo Client and Echo Server applications: