Monday, 27 July 2015

WDFME.exe using up resources

Recently, I found CPU usage stagnating at 100%. Task manager showed that aggregated CPU usage of all my processes consumed was much less than that. Check processes owned by all users, I found WDFME.exe consuming CPU heavily. It seemed quite unnecessary as my hard disk is of Seagate and the "WD" in the name suggested "Western Digital". So, I killed it. It is essentially the software that comes along with Western digital external hard drives. As it turns out, it is not necessary and it a known resource hog.

Wednesday, 22 July 2015

Concatenating wide character strings

Today I was looking at concatenating multiple wide character strings. I was dealing with PWSTRs. As it turns out, I needed to use wstring to do it. The following code illustrates the method.

std::wstring mywstring(mystring);
std::wstring concatted_stdstr = L"hello " + mywstring + L" blah";
LPWSTR concatenated = concatted_stdstr.c_str();

However, the above gives us a read-only value for the concatenated string. We can use wcsdup() to get a writeable copy. Otherwise, we can cast the read-only string to a writeable one as follows.

PWSTR value = const_cast (concatenated);

Monday, 6 July 2015

Failed optimization probably

Uber drives are taking a longer route because of some misbehaving optimization in Google maps it seems. When a cab is booked near the main gate of Pearl Village (as shown below) the route shown to the driver is optimised one. However, when a booking is done from the far end of the society, the cabbie is shown a rather long route. A part of this way is actually a dirt road. Uber should consider feedback from its drivers regarding such cases.

Thursday, 2 July 2015

HolidayIQ share feature broken

The HolidayIQ app did not have share facility before so you could only read their blogs when you get a push notification but not share it with somebody. Recently, I was glad to see the share feature in their app. However, when I tried using it by sharing on WhatsApp, it seems they messed up again. The shared URL is a shortened URL so the problem is not quite apparent on first sight but when a person opens the URL in a browser on a phone that does not have the app, the URL does not work with a message that the URL was not understood (This message was from Firefox. Other browsers will have similar issues.). The problem is that the URL specifies incorrect protocol. Instead of http:// the shortened URL expands to one starting with holiday:// With phones that have the app, this URL is opened in the HolidayIQ app and causes no issues. However, I think they should use a http:// URL while sharing.

Monday, 29 June 2015

Idle windows isn't really idle

My laptop running Windows 7 using using 50% CPU when it is idle. I don't know why but this allows me very less resources to run other programs.
No programs running.
Any suggestions are welcome.

Monday, 27 April 2015

Finding remote URL of a folder under git

I was trying to recover an old codebase. I could see that it had two remotes one of which was now rejecting pushes. So, I figured the remote must have changed. To verify, I needed to see how to find out the remote URL. I found there are three ways of doing it as follows:
  1. git remote show remote_name # this failed for me as the remote URL was unavailable
  2. git config --get remote.heroku.url # this solved my purpose
  3. git remote -v # simplest of all to remember

Heroku suports only Ubuntu

Heroku supports Ubuntu nicely but seems to ignore other distributions. Their reference points to an OS-specific choice page.
points to toolbelt.heroku.com
That page provides a script and a command that uses the script to install heroku toolbet for Ubuntu.
Ubuntu option
However, even for standalone option, the script does not change.
Standalone option
deadlock completed
Now standalone essentially is the category of other linux and BSD distributions. So, having an apt-get script for them is like saying "We hardly care about you". They could have provided a source link there. In fact given that another link on the same page links to their source hosted at Github. And interestingly their Github page asks to first install heroku toolbelt redirecting back to the same page.

Saturday, 4 April 2015

Out of context advertising

Why would I be interested in obituary speeches when I am looking for time zone differences ?

Even facebook goes down

Yeah, it is an event to be noted.