On 12/05/2015 11:02 p.m., tcak wrote:
On Tuesday, 12 May 2015 at 10:58:08 UTC, Rikki Cattermole wrote:
On 12/05/2015 10:40 p.m., tcak wrote:
I am developing a web server - web application system, and it is going
to be running on a small system that has 256MB memory at maximum. Hence,
I tried to use every bit of memory without wasting, and used align(1) on
a struct type. Because it is used as shared, and its internal variables
are updated in time, core.atomic.atomicOp is being used. Until today,
whenever I tried to update variables with atomicOp, running thread was
basically returning from that point like nothing happened. After long
debugging, I finally saw that thread has given AssertError with a line
number. There wasn't any information about what was going on. I went to
core.atomic file, and found out that (not on the given line number),
variables should be properly aligned to use atomicOp.
Just out of interest, is said web server meant to be comparable to
e.g. Apache httpd?
Yes. Web server and application are running separately. Web server is
parsing request message, and by using host, determining which web
application to route the request. Web application gets the request, does
extra parsing like query, path, cookies, etc. and sends response message
back to web server, and it sends those messages back to client.
I am using shared memory, and named pipe for these to be able to
increase performance as high as possible. Thus, it is relies on Posix
and my mostly my own library codes.
I'm also working on a web server[0] hence why I'm asking.
[0] http://github.com/dnetdev/webserver
