Topic: Question on the open_entity function in mod_disk_cache.c

[Anirudh]

Hello,

This question could be really stupid but is there any reason as to why we call the apr_file_open without the APR_XTHREAD flag (in the open_entity function when the headers file is opened).

On the other hand, when the data file is opened, the APR_SENDFILE_ENABLED is being passed and there is a check in open.c in the APR library based on which the XTHREADS flag is set.

if (flag & APR_FOPEN_SENDFILE_ENABLED) {
/* This feature is required to enable sendfile operations
* against the file on Win32. Also implies APR_FOPEN_XTHREAD.
*/
flag |= APR_FOPEN_XTHREAD;
attributes |= FILE_FLAG_SEQUENTIAL_SCAN | FILE_FLAG_OVERLAPPED;
}

Also, has anyone ever seen a delay in the apr_open_file that is called to open an existing header in mod_disk_cache.c?

Thank you,
Anirudh

[James Blond]

I'm not a c programer, but from my experience send file is not the best solution on windows. I had better results by disabling it when sending static files. Maybe that is a hint into some direction for you. My Advise is to ask the guys on the apr dev mailing list.

http://apr.apache.org/mailing-lists.html