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Q: How to implement GPSR algorithm in ns3 ? I want to implement gpsr using  ns3 .For this purpose , I am follwing this github project. In this project ,  I am reading readme file . I have found that I have to execute this command : "./waf configure;./waf" .
So I enter in my terminal my folder path.When i put ./waf configure , it has showed me configuration is successfull.Then I put ./waf it show this type of error .
../src/core/model/unix-system-wall-clock-ms.cc: In member function 'int64_t ns3::SystemWallClockMsPrivate::End()':
../src/core/model/unix-system-wall-clock-ms.cc:78:44: error: '_SC_CLK_TCK' was not declared in this scope
   static int64_t ticksPerSecond = sysconf (_SC_CLK_TCK);
                                            ^
../src/core/model/unix-system-wall-clock-ms.cc:78:55: error: 'sysconf' was not declared in this scope
   static int64_t ticksPerSecond = sysconf (_SC_CLK_TCK);

It also shows me the reason to get this error :
Build failed
 -> task failed (exit status 1):
    {task 139770074846736: cxx unix-system-wall-clock-ms.cc -> unix-system-wall-clock-ms.cc.1.o}
['/usr/bin/g++', '-O0', '-ggdb', '-g3', '-Wall', '-Werror', '-Wno-error=deprecated-declarations', '-fstrict-aliasing', '-Wstrict-aliasing', '-fPIC', '-pthread', '-Ibuild', '-I.', '-DNS3_ASSERT_ENABLE', '-DNS3_LOG_ENABLE', '-DSQLITE3=1', '-DHAVE_IF_TUN_H=1', '-DPYTHONDIR="/usr/local/lib/python2.7/dist-packages"', '-DPYTHONARCHDIR="/usr/local/lib/python2.7/dist-packages"', '-DHAVE_PYTHON_H=1', '-DENABLE_GSL', '../src/core/model/unix-system-wall-clock-ms.cc', '-c', '-o', 'src/core/model/unix-system-wall-clock-ms.cc.1.o']

So can you suggest me an way to resolve this error ? Why am I getting this error ? What can I do to run GPSR algorithm in ns3 ? I badly need the simulation of GPSR algorithm . Thanks for your co-operation .

A: You need to add this include to src/core/model/unix-system-wall-clock-ms.cc
#include <unistd.h>

Some systems (such as yours) need this explicitly added while others may pull it in with another header file.


Good morning/afternoon/evening. What's up! This week's episode is super fun! Jon, Nan, and Danielle are joined by author Merritt Tierce! Her novel, Love Me Back will be released September 16, 2014! You should buy it!


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HomeS.P. Ely Stabilization & Monitoring Program
Samuel P. Ely Stabilization & Monitoring Program
The shipwreck S.P. Ely, built in 1869, is a relatively intact 200 foot long schooner that sank in a storm in 1896 at Two Harbors, Minnesota. It is located inside of the west breakwall of the Agate Bay harbor of Two Harbors and is visited by many sport divers each year. The Ely site has always been unique because over half of it is intact. Its bow and stern broke apart long ago, but over 120 feet of the mid-ship portion of the wreck is still upright and intact.
In 1994, a group of concerned divers began the Ely preservation project. They lifted the deck through holes in the ice during the winter and stabilized the spreading hull by installing four ¾ inch steel rods to support the deck and hold the sides together to stop the hull from spreading. The rods were run just under the lifted deck and secured on the ends using steel plates and nuts to pull the sides together. This group later went on to form the Great Lakes Shipwreck Preservation Society and have continued efforts to preserve this shipwreck and many others. (1994 S.P. Ely Restoration Report) Monitoring over the years showed gradual bending and breaking of the original rods. These were replaced beginning in 2001. This time we used three sections of one inch steel rod using two turnbuckles to join them to span the 32 foot beam. The thicker rods and extra turnbuckles were intended to reduce the fracture stress of the flexing rods due to the motion of the hull created by the forces of water movement during heavy seas. Six new rods were installed.
The goal of the Ely Stabilization project is to document, preserve, and maintain this shipwreck at a reasonable level of intactness for future visitors and to sustain this rare representative of the 200-foot schooners for posterity. This is one of the few of this class of wooden vessels still intact that was designed around 1870 for the new 16-foot channels at the St. Clair River between Lake Huron and Lake St. Clair. GLSPS and concerned people have been working to preserve this shipwreck since 1994.
Our more specific goals for this shipwreck are: document and stabilize, then preserve the Samuel P. Ely. We will strive to maintain the original fabric of the vessel and whenever possible original materials will be used. Where using deteriorated original materials may compromise safety and significant structural integrity, we will replace materials with new materials of a similar type and appearance.
S.P. Ely Stabilization Project 1994
S.P. Ely Project 1999
S.P. Ely Projects 2002
S.P. Ely Documentation Monitoring Photo Video Practice 2013
The location of the S.P. Ely on West Breakwall.
Samuel P. Ely Historic Photo
Deck beam and loose deck planks on the Ely.
Deck beam separated from the side hull shelf. Note the
tie rod behind it to help secure the hull sides together.

redpajama_set_name: RedPajamaCommonCrawl


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Home>Entertainment> Adam Sandler Signs On To Host "Saturday Night Live" For The First Time
Adam Sandler Signs On To Host "Saturday Night Live" For The First Time
Rich Polk/Getty Images
Adam Sandler will be hosting "SNL" on May 4.
It's insane to think that over the course of Adam Sandler's illustrious career, he's never hosted Saturday Night Live. Many comedians end up getting their big break on the show after starring in their skits and Sandler is one of those people. However, Sandler has never actually returned to grace the stage as a host. According to Decider, he was opposed to accepting a hosting gig on SNL for years but things must have changed because next month, the actor will be starting off the show with his trademark wit during his first-time-ever hosting gig.
Gilbert Carrasquillo/FilmMagic/Getty Images
The announcement was made today and instantly, people got pretty excited for the May 4 episode of the late-night variety show. Sandler is a favorite for many, having starred in several of our favorite movies over the years, and to see him act out a few more sketch comedy acts will be refreshing. The show made Sandler into a household name but he was never truly interested in coming back as a host, previously saying, "There are guys who love doing it — who are great at doing it … I just don't know how good I'd be doing it. I did what I can do on the show."
Musical guest Shawn Mendes will be joining Sandler on the episode. Are you looking forward to watching Adam Sandler's hosting debut on SNL?
Entertainment News adam sandler saturday night live snl TV shows host sketch comedy comedian actor first time Shawn Mendes
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ENTERTAINMENT Adam Sandler Signs On To Host "Saturday Night Live" For The First Time


Hey everyone! Hardware hound here. I've been dreaming of getting to a trade show for some time now, and after a slightly snowy drive, I'm at CES! I'm already seeing some really cool things so keep your eyes peeled because more updates will be forth coming. I also decided to warn a dragon about his/her impending doom at my hands! I don't think it was too afraid.
I'll be at Las Vegas for the rest of the week with plenty more to do and see. I'll keep you updated as fast as I can on what's happening and I hope my schedule let's me bring some new releases before the weekend. Once I get back, I'll make sure to update you on everything I've seen and why I think it's worth being excited about. Course, you probably don't need me to do that for you, but I enjoy doing it anyways!