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Questions tagged [aio-write]

7 questions
23
votes
5 answers

Asynchronous file writing possible in python?

Is there an easy way write to a file asynchronously in Python? I know the file io that comes with Python is blocking; which is fine in most cases. For this particular case, I need writes not to block the application at all, or at least as minimally…
RaySl
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5
votes
4 answers

AIO on OS X vs Linux - why it doesn't work on Mac OS X 10.6

My question is really simple. Why the code below does work on Linux, and doesn't on Mac OS X 10.6.2 Snow Leopard. To compile save the file to aio.cc, and compile with g++ aio.cc -o aio -lrt on Linux, and g++ aio.cc -o aio on Mac OS X. I'm using Mac…
invalidopcode
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3
votes
2 answers

how to wait on async files in perl

I am trying to test a logging module which asynchronously writes to a file... the unit test tries to read the log to make sure the written message matches expected. However, I am finding that the asynchronous writes by the module don't reach the…
tbischel
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1
vote
1 answer

C file filled with garbage

I need to fill my file with same numbers for example 00000.... I want to use asynchronous aio_write function. But here what I get ^@ w▒(▒▒▒▒▒l▒@^@Y▒^@^@^@^@▒▒▒▒u▒l▒@*`▒^@ w▒h▒▒▒ ...... Here's my code int main(int argc, char *argv[] ){ int sk; …
David
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1
vote
1 answer

Linux system call aio_write() fails with error code 22 (EINVAL)

I have a testing utility that uses linux aio_write and aio_read. This testing utility wraps my static library and test it. This library is multi-threaded black box. Up until now, it worked fine. But now we made a big change into the this black-box…
yanger
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0
votes
2 answers

why does aio_write() act wrong?

I want to write 2 files by using aio_write. Used 32KB buffer and repeat aio_write 2048 times for 1 file.(file size is 64MB) However result is not 64MB but size is 64MB + 32KB, now. Also sometimes file is written by garbage. I want to fill 'A' to…
Kwang Hun Lee
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0
votes
1 answer

Filing file with zeroes

My file should be filled with 0. I want to do that using aio_write As a result my file should look like 000000000.... but as a result I get that my file is filled with garbage…
David
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