[Ns-bugs] [Bug 40] New: Samples/Examples linked shared sometimes do nothing or hang

[bugzilla-daemon@nsnam-www.ece.gatech.edu]

http://www.nsnam.org/bugzilla/show_bug.cgi?id=40

           Summary: Samples/Examples linked shared sometimes do nothing or
                    hang
           Product: ns-3
           Version: unspecified
          Platform: PC
        OS/Version: Windows
            Status: NEW
          Severity: blocker
          Priority: P1
         Component: sample programs
        AssignedTo: ns-bugs at isi.edu
        ReportedBy: craigdo at ee.washington.edu


One symptom is that programs appear to run, but don't do anything.  When run
with a debugger, you see something like the following,  

(gdb) run
Starting program:
/usr/craigdo/repos/ns-3-devx/build-dir/dbg-shared/bin/sample-ptr.exe
gdb: unknown target exception 0xc0000135 at 0x7c964ed1

Program received signal ?, Unknown signal.

Program exited with code 030000000465.
You can't do that without a process to debug.
(gdb)

The "signal" is a Microsoft HRESULT which corresponds to the error "The
application failed to initialize properly (0xc0000135)."  This turned out in
this case to mean that the (Cygwin) system could find the ns-3 DLLs but
(Windows) couldn't load them.  This happened because the Windows environment
needs to be pointed to the lib directory as well as the Cygwin environment.  I
added 

;C:/cygwin/usr/craigdo/repos/ns-3-devx/build-dir/dbg-shared/bin

to the windows $PATH and the simpler samples started working correctly. 
Unfortunately, sample-simple.exe and simple-p2p.exe now hang while trying to
initialize DLLs.


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