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IPC performance: Named Pipe vs Socket
...ll everything else is written), but end up with code that spends more time blocking for an IPC reply than it does doing useful work. Sure, non-blocking schemes help this, but those can be tricky. Spending years bringing old code into the modern age, I can say, the speedup is almost nil in the majori...
How can I combine two HashMap objects containing the same types?
...ull pointer exception with putAll method. it does not help using try/catch block. what should i do? I am apply if condition, that if size==o then don't apply putAll else apply it and so on....
– Mavin
Nov 28 '10 at 23:38
...
What is the effect of extern “C” in C++?
... "C" linkage to each individual declaration/definition explicitly or use a block to group a sequence of declarations/definitions to have a certain linkage:
extern "C" void foo(int);
extern "C"
{
void g(char);
int i;
}
If you care about the technicalities, they are listed in section 7.5 of the...
avoid page break inside row of table
...s works, but I have so many rows,
then not work.
If set display of tr as block or some thing else then it change the formatting of table and insert double border.
Or it is possible to insert the table header on each page, where the table was splitted.
...
Where does Vagrant download its .box files to?
...add.rb
Find the box_add function. Within the box_add function, there is a block that reads:
ensure
# Make sure we delete the temporary file after we add it,
# unless we were interrupted, in which case we keep it around
# so we can resume the download later.
if !@download_interru...
If list index exists, do X
...list index exists, then run a function.
This is the perfect use for a try block:
ar=[1,2,3]
try:
t=ar[5]
except IndexError:
print('sorry, no 5')
# Note: this only is a valid test in this context
# with absolute (ie, positive) index
# a relative index is only showing you that a value ...
How to replace strings containing slashes with sed?
...noted earlier on this post, if the string contained within the sed command block contains the actual delimiter used by sed - then sed terminates on syntax error. Consider the following example:
This works:
$ VALUE=12345
$ echo "MyVar=%DEF_VALUE%" | sed -e s/%DEF_VALUE%/${VALUE}/g
MyVar=12345
Thi...
The SMTP server requires a secure connection or the client was not authenticated. The server respons
...
I have the same problem.
I have found this solution:
Google may block sign in attempts from some apps or devices that do not use modern security standards. Since these apps and devices are easier to break into, blocking them helps keep your account safer.
Some examples of apps that do no...
How do I make curl ignore the proxy?
...bles like ftp_proxy. I think, here is a full list wiki.archlinux.org/index.php/proxy_settings .
– Dmitriusan
May 12 '14 at 16:04
...
ValueError : I/O operation on closed file
...
Indent correctly; your for statement should be inside the with block:
import csv
with open('v.csv', 'w') as csvfile:
cwriter = csv.writer(csvfile, delimiter=' ', quotechar='|', quoting=csv.QUOTE_MINIMAL)
for w, c in p.items():
cwriter.writerow(w + c)
Outside the ...