Hi all,
I’m working on a native nginx module in which I want to read an input
file
and perform some manipulations on its data. Since the files I’m reading
are
big and accessed over NFS, I want to use asynchronous I/O for reading
them,
and I want to implement it as a pipeline of chunks, i.e. read a chunk,
process the chunk, add the chunk to the response chain.
My questions are as follows:
- Is there any sample / documentation / basic guidelines you can give
me on
how to progressively output data back to the client ? - Does nginx support generating responses with chunked-encoding (I may
not
be able to determine the response size without processing the whole
file,
and would prefer to avoid keeping the entire processed buffer in memory
at
once) ? - Can you send me some guidelines on how to perform asynchronous file
read
(my understanding is that I need to use ngx_file_aio_read and if I get
NGX_AGAIN, set the handler/data members of file->aio to my completion
callback) ?
Thank you in advance,
Eran
Posted at Nginx Forum: