buff | Package buff provides a thread safe Go implementation | Runtime Evironment library
kandi X-RAY | buff Summary
kandi X-RAY | buff Summary
Package buff provides a thread safe Go implementation of a circular buffer.
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Top functions reviewed by kandi - BETA
- Show a circular buffer
- GetOldest returns the last element in the buffer
- Init initializes a new Buff .
buff Key Features
buff Examples and Code Snippets
Community Discussions
Trending Discussions on buff
QUESTION
This is the code I have written for the MPI's Group Communication Primitives-Brod cast example using c language try with Ubuntu system. I wrote a code for the string and variable concatenation here.
When I am compiling this code it shows error like that.(Please refer the image)
Can anyone help me to solve this?
...ANSWER
Answered 2021-Jun-15 at 12:43Change this line :
QUESTION
This while loop is in server program and read call is linked to client via connfd which passes buff as name of file taken fom user via gets and passed through write call. if i paste "filename.txt" in fopen 1st argument it works but this buff as an argument causes fopen to report error as "No such file or directory". :( any help appriciated
...ANSWER
Answered 2021-Jun-14 at 22:52read(connfd, buff, sizeof(buff))
QUESTION
My task is to copy JPEGs from a file the intend here is to find the JPEGs and create a new file to put it, all JPEGs are store back to back and the "identifier" is always in the beggining of a 512 BYTE block. my problem shows only in the first file where it writes 128 bytes before the expected data from the buffer rendering the new file useless.
what i have tried:
- Check the original file to see if the data came from it but it does not.
- Malloc all the pointers to have "clear memory".
- Reorganize the code.
any ideas?
{
...ANSWER
Answered 2021-Jun-14 at 04:42Since filename
is only large enough to hold a string of length 6, you have undefined behavior throughout your code. Use:
QUESTION
I need to read csv file then put on "value" struct array but when ı put integer variable ım getting this "expected ‘char * restrict’ but argument is of type ‘int’" error this is my code sorry for my bad english :(
...ANSWER
Answered 2021-Jun-11 at 12:47Take a look at the error message. strcpy
takes two char *
arguments, but in strcpy(values[i].id,field)
, values[i].id
is int
.
The prototype of strcpy
is included in the compiler output:
QUESTION
ANSWER
Answered 2021-Jun-10 at 08:22it seems that the simple import keyword does not do lazy loading of modules.
How should it? import
has to guarantee the code in the imported file / module's __init__.py
is executed at the point of importing.
Just try the following: make a file test.py
, containing nothing but print("hey!")
, and in the same directory, import .test
. You'll notice that import really isn't different from just executing the code in test.py
.
I am trying to understand when does a module actually get loaded in memory?
import name
really just executes the specified code in the current namespace under the name
namespace. If you define a class in that code, then its instantly visible, has to get parsed, and whatnot.
And why does an import django command not load all of django modules in memory?
Because the code that gets executed on import django
simply doesn't do that. (just as it doesn't get up and make us the much-deserved coffee!)
QUESTION
I created a TCP client/server and was provided test script, however, beyond short messages, all tests are failing. Simply, the script send arbitrary messages that the client reads through redirection from a file to ther server. However with randomly created files by the script, it says that the messages on receving/sending side do not match. Any help will be appreciated, below is the client and server code.
...ANSWER
Answered 2021-Jun-05 at 10:062048 bytes exceed in size the typical MTU (note that TCP is laid over IP, which itself is packet oriented), so data is likely sent via multiple packets. As you have only one single call to recv
chances are that you fetch the contents of first packet from the receive buffer before the the TCP/IP stack could place the contents of the follow up packets there.
Rather have multiple reads in a loop and exit the loop on receiving 0 bytes (remote socket closed):
QUESTION
I have stored in a list an output of a command, this output belongs to a cisco Switch. I would like to print the errors that have occurred in the configuration, this is shown in the output when this text appears: "% Invalid input detected at '^' marker.", above this text is this symbol: '^' and finally above this symbol the erroneous command.
For this, I have stored each command line in a list, in this list are stored several "% Invalid input detected at '^' marker.", what can I do to make it show several of these erroneous commands? I have a code that looks for these errors, but in this case I get 2 times the same erroneous code stored in the list.
this is the list:
...ANSWER
Answered 2021-May-30 at 18:09You could use a fixed-size collections.deque
to do it:
QUESTION
as mention above i am trying to make a server and client program. the client should send the length of the sequence of int and the sequence to the server. from the server it will receive the average if it is greater than 10 and a confirmation message else it will receive a failure message. The server creates threads and in the function executed by the threads it does what the client wants plus it keeps count of the successful as well as the total sequences which he receives . I have tried what follows and after i insert the array elements it does nothing and i am not sure why(as you may have guessed i am new to sockets)
server code
...ANSWER
Answered 2021-May-30 at 16:19Server sends a variable length string (confirmation) but we need a fixed length message because client can't know beforehand the length to read. Better to just send an int
that is 0=fail, 1=success.
Server sends average
first but client reads success/fail message first (i.e. a mismatch in the order of send/recv
for these.
Method to terminate client connection in server is broken. Better to have client send an explicit stop message (and server has to check connection).
The server doesn't do pthread_join
so it can overrun the thread ID array. I changed that to a linked list of a [new] per-task struct
. But, I couldn't get the join code to work. Still, it should give you some idea of how to control threads in the general case, even though it's broken somewhat.
There are many other issues, too numerous to mention individually, but, the code below is refactored and [most of] the bugs are annotated. It's still a bit fragile in places (e.g. server can get "Broken pipe") but the basic communication now works.
I've used cpp
conditionals to denote old vs. new code:
QUESTION
I have a class which extends AsyncTask. When called, this task will download a video to internal storage and will in turn update a progress indicator. When the task is done, it will change the download button to a downloaded button (I'm using abdularis AndroidButtonProgress).
The procedure is working well, however I have a field for the download button and it's being highlighted as a memory leak:
...ANSWER
Answered 2021-May-30 at 15:51You should pass the download button as a constructor dependency and wrap it in a weak reference as you've done with context.
I think it may have thrown a ClassCastException
because you attempted to force cast it from doInBackground()
and the download button from the host of your AsyncTask
was a weak reference of the view.
Minor modification to your existing code should work fine:
QUESTION
I am a beginner in Python. I have been trying my hands on MatPlotLib to compare the stats of soccer players in FIFA 20. Basically the problem I'm facing is:
...ANSWER
Answered 2021-May-29 at 10:33It is your x and y lims :
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