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When should we use mutex and when should we use semaphore
... must happen in the same thread later on.
e.g.: If you are deleting a node from a global linked list, you do not want another thread to muck around with pointers while you are deleting the node. When you acquire a mutex and are busy deleting a node, if another thread tries to acquire the same mutex,...
python: Change the scripts working directory to the script's own directory
I run a python shell from crontab every minute:
4 Answers
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How do I call Objective-C code from Swift?
...a quick build with ⌘⇧R to help Xcode find some of the Objective-C code from a Swift context and vice versa.
If you add a .swift file to an older project and get the error dyld: Library not loaded: @rpath/libswift_stdlib_core.dylib, try completely restarting Xcode.
While it was originally possib...
What is the difference between MOV and LEA?
...spect; Load is just how you replace the value in a register with something from scratch. e.g. LAHF is: Load FLAGS into AH register. In the CLR's CIL (which is a higher level stack based abstract machine, the term load refers to putting a value onto the notional stack and is normally l..., and the s....
How do you keep parents of floated elements from collapsing? [duplicate]
... is floated, its parent no longer contains it because the float is removed from the flow. You can use 2 methods to fix it:
{ clear: both; }
clearfix
Once you understand what is happening, use the method below to “clearfix” it.
.clearfix:after {
content: ".";
display: block;
clea...
Download a file from NodeJS Server using Express
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Thanks.. Is there a way to get this information from the fs.readFileSync? I'm using a static file in this example but I'll use this download api for any files, passing the name of it.
– Thiago Miranda de Oliveira
Sep 2 '11 at 20:33
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A variable modified inside a while loop is not remembered
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what if the source was from tail -f instead of fixed text?
– mt eee
Nov 9 '18 at 7:57
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How to detect internet speed in JavaScript?
...ctive bandwidth estimate in Mbits per sec. The browser makes this estimate from recently observed application layer throughput across recently active connections. Needless to say, the biggest advantage of this approach is that you need not download any content just for bandwidth/ speed calculation.
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How to delete a stash created with git stash create?
...etails.
You don't need to delete a stash created with git stash create. From the docs:
Create a stash entry (which is a regular commit object) and return its object name, without storing it anywhere in the ref namespace. This is intended to be useful for scripts. It is probably not the comman...
Return only string message from Spring MVC 3 Controller
Can any one tell me how I can return string message from controller?
6 Answers
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